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Diffstat (limited to 'media/d3.js')
| -rw-r--r-- | media/d3.js | 4709 |
1 files changed, 0 insertions, 4709 deletions
diff --git a/media/d3.js b/media/d3.js deleted file mode 100644 index 1f078070..00000000 --- a/media/d3.js +++ /dev/null @@ -1,4709 +0,0 @@ -/* d3.js - Data Driven Documents - * Version: 2.6.1 - * Homepage: http://mbostock.github.com/d3/ - * Copyright: 2010, Michael Bostock - * Licence: 3-Clause BSD - * - * Copyright (c) 2010, Michael Bostock - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * - * * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * * The name Michael Bostock may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL MICHAEL BOSTOCK BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, - * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -(function(){if (!Date.now) Date.now = function() { - return +new Date; -}; -try { - document.createElement("div").style.setProperty("opacity", 0, ""); -} catch (error) { - var d3_style_prototype = CSSStyleDeclaration.prototype, - d3_style_setProperty = d3_style_prototype.setProperty; - d3_style_prototype.setProperty = function(name, value, priority) { - d3_style_setProperty.call(this, name, value + "", priority); - }; -} -d3 = {version: "2.6.1"}; // semver -var d3_array = d3_arraySlice; // conversion for NodeLists - -function d3_arrayCopy(pseudoarray) { - var i = -1, n = pseudoarray.length, array = []; - while (++i < n) array.push(pseudoarray[i]); - return array; -} - -function d3_arraySlice(pseudoarray) { - return Array.prototype.slice.call(pseudoarray); -} - -try { - d3_array(document.documentElement.childNodes)[0].nodeType; -} catch(e) { - d3_array = d3_arrayCopy; -} - -var d3_arraySubclass = [].__proto__? - -// Until ECMAScript supports array subclassing, prototype injection works well. -function(array, prototype) { - array.__proto__ = prototype; -}: - -// And if your browser doesn't support __proto__, we'll use direct extension. -function(array, prototype) { - for (var property in prototype) array[property] = prototype[property]; -}; -function d3_this() { - return this; -} -d3.functor = function(v) { - return typeof v === "function" ? v : function() { return v; }; -}; -// Copies a variable number of methods from source to target. -d3.rebind = function(target, source) { - var i = 1, n = arguments.length, method; - while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]); - return target; -}; - -// Method is assumed to be a standard D3 getter-setter: -// If passed with no arguments, gets the value. -// If passed with arguments, sets the value and returns the target. -function d3_rebind(target, source, method) { - return function() { - var value = method.apply(source, arguments); - return arguments.length ? target : value; - }; -} -d3.ascending = function(a, b) { - return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN; -}; -d3.descending = function(a, b) { - return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN; -}; -d3.mean = function(array, f) { - var n = array.length, - a, - m = 0, - i = -1, - j = 0; - if (arguments.length === 1) { - while (++i < n) if (d3_number(a = array[i])) m += (a - m) / ++j; - } else { - while (++i < n) if (d3_number(a = f.call(array, array[i], i))) m += (a - m) / ++j; - } - return j ? m : undefined; -}; -d3.median = function(array, f) { - if (arguments.length > 1) array = array.map(f); - array = array.filter(d3_number); - return array.length ? d3.quantile(array.sort(d3.ascending), .5) : undefined; -}; -d3.min = function(array, f) { - var i = -1, - n = array.length, - a, - b; - if (arguments.length === 1) { - while (++i < n && ((a = array[i]) == null || a != a)) a = undefined; - while (++i < n) if ((b = array[i]) != null && a > b) a = b; - } else { - while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined; - while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b; - } - return a; -}; -d3.max = function(array, f) { - var i = -1, - n = array.length, - a, - b; - if (arguments.length === 1) { - while (++i < n && ((a = array[i]) == null || a != a)) a = undefined; - while (++i < n) if ((b = array[i]) != null && b > a) a = b; - } else { - while (++i < n && ((a = f.call(array, array[i], i)) == null || a != a)) a = undefined; - while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b; - } - return a; -}; -d3.extent = function(array, f) { - var i = -1, - n = array.length, - a, - b, - c; - if (arguments.length === 1) { - while (++i < n && ((a = c = array[i]) == null || a != a)) a = c = undefined; - while (++i < n) if ((b = array[i]) != null) { - if (a > b) a = b; - if (c < b) c = b; - } - } else { - while (++i < n && ((a = c = f.call(array, array[i], i)) == null || a != a)) a = undefined; - while (++i < n) if ((b = f.call(array, array[i], i)) != null) { - if (a > b) a = b; - if (c < b) c = b; - } - } - return [a, c]; -}; -d3.random = { - normal: function(mean, deviation) { - if (arguments.length < 2) deviation = 1; - if (arguments.length < 1) mean = 0; - return function() { - var x, y, r; - do { - x = Math.random() * 2 - 1; - y = Math.random() * 2 - 1; - r = x * x + y * y; - } while (!r || r > 1); - return mean + deviation * x * Math.sqrt(-2 * Math.log(r) / r); - }; - } -}; -function d3_number(x) { - return x != null && !isNaN(x); -} -d3.sum = function(array, f) { - var s = 0, - n = array.length, - a, - i = -1; - - if (arguments.length === 1) { - while (++i < n) if (!isNaN(a = +array[i])) s += a; - } else { - while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a; - } - - return s; -}; -// R-7 per <http://en.wikipedia.org/wiki/Quantile> -d3.quantile = function(values, p) { - var H = (values.length - 1) * p + 1, - h = Math.floor(H), - v = values[h - 1], - e = H - h; - return e ? v + e * (values[h] - v) : v; -}; -d3.transpose = function(matrix) { - return d3.zip.apply(d3, matrix); -}; -d3.zip = function() { - if (!(n = arguments.length)) return []; - for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m;) { - for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n;) { - zip[j] = arguments[j][i]; - } - } - return zips; -}; - -function d3_zipLength(d) { - return d.length; -} -// Locate the insertion point for x in a to maintain sorted order. The -// arguments lo and hi may be used to specify a subset of the array which should -// be considered; by default the entire array is used. If x is already present -// in a, the insertion point will be before (to the left of) any existing -// entries. The return value is suitable for use as the first argument to -// `array.splice` assuming that a is already sorted. -// -// The returned insertion point i partitions the array a into two halves so that -// all v < x for v in a[lo:i] for the left side and all v >= x for v in a[i:hi] -// for the right side. -d3.bisectLeft = function(a, x, lo, hi) { - if (arguments.length < 3) lo = 0; - if (arguments.length < 4) hi = a.length; - while (lo < hi) { - var mid = (lo + hi) >> 1; - if (a[mid] < x) lo = mid + 1; - else hi = mid; - } - return lo; -}; - -// Similar to bisectLeft, but returns an insertion point which comes after (to -// the right of) any existing entries of x in a. -// -// The returned insertion point i partitions the array into two halves so that -// all v <= x for v in a[lo:i] for the left side and all v > x for v in a[i:hi] -// for the right side. -d3.bisect = -d3.bisectRight = function(a, x, lo, hi) { - if (arguments.length < 3) lo = 0; - if (arguments.length < 4) hi = a.length; - while (lo < hi) { - var mid = (lo + hi) >> 1; - if (x < a[mid]) hi = mid; - else lo = mid + 1; - } - return lo; -}; -d3.first = function(array, f) { - var i = 0, - n = array.length, - a = array[0], - b; - if (arguments.length === 1) f = d3.ascending; - while (++i < n) { - if (f.call(array, a, b = array[i]) > 0) { - a = b; - } - } - return a; -}; -d3.last = function(array, f) { - var i = 0, - n = array.length, - a = array[0], - b; - if (arguments.length === 1) f = d3.ascending; - while (++i < n) { - if (f.call(array, a, b = array[i]) <= 0) { - a = b; - } - } - return a; -}; -d3.nest = function() { - var nest = {}, - keys = [], - sortKeys = [], - sortValues, - rollup; - - function map(array, depth) { - if (depth >= keys.length) return rollup - ? rollup.call(nest, array) : (sortValues - ? array.sort(sortValues) - : array); - - var i = -1, - n = array.length, - key = keys[depth++], - keyValue, - object, - o = {}; - - while (++i < n) { - if ((keyValue = key(object = array[i])) in o) { - o[keyValue].push(object); - } else { - o[keyValue] = [object]; - } - } - - for (keyValue in o) { - o[keyValue] = map(o[keyValue], depth); - } - - return o; - } - - function entries(map, depth) { - if (depth >= keys.length) return map; - - var a = [], - sortKey = sortKeys[depth++], - key; - - for (key in map) { - a.push({key: key, values: entries(map[key], depth)}); - } - - if (sortKey) a.sort(function(a, b) { - return sortKey(a.key, b.key); - }); - - return a; - } - - nest.map = function(array) { - return map(array, 0); - }; - - nest.entries = function(array) { - return entries(map(array, 0), 0); - }; - - nest.key = function(d) { - keys.push(d); - return nest; - }; - - // Specifies the order for the most-recently specified key. - // Note: only applies to entries. Map keys are unordered! - nest.sortKeys = function(order) { - sortKeys[keys.length - 1] = order; - return nest; - }; - - // Specifies the order for leaf values. - // Applies to both maps and entries array. - nest.sortValues = function(order) { - sortValues = order; - return nest; - }; - - nest.rollup = function(f) { - rollup = f; - return nest; - }; - - return nest; -}; -d3.keys = function(map) { - var keys = []; - for (var key in map) keys.push(key); - return keys; -}; -d3.values = function(map) { - var values = []; - for (var key in map) values.push(map[key]); - return values; -}; -d3.entries = function(map) { - var entries = []; - for (var key in map) entries.push({key: key, value: map[key]}); - return entries; -}; -d3.permute = function(array, indexes) { - var permutes = [], - i = -1, - n = indexes.length; - while (++i < n) permutes[i] = array[indexes[i]]; - return permutes; -}; -d3.merge = function(arrays) { - return Array.prototype.concat.apply([], arrays); -}; -d3.split = function(array, f) { - var arrays = [], - values = [], - value, - i = -1, - n = array.length; - if (arguments.length < 2) f = d3_splitter; - while (++i < n) { - if (f.call(values, value = array[i], i)) { - values = []; - } else { - if (!values.length) arrays.push(values); - values.push(value); - } - } - return arrays; -}; - -function d3_splitter(d) { - return d == null; -} -function d3_collapse(s) { - return s.replace(/(^\s+)|(\s+$)/g, "").replace(/\s+/g, " "); -} -/** - * @param {number} start - * @param {number=} stop - * @param {number=} step - */ -d3.range = function(start, stop, step) { - if (arguments.length < 3) { - step = 1; - if (arguments.length < 2) { - stop = start; - start = 0; - } - } - if ((stop - start) / step == Infinity) throw new Error("infinite range"); - var range = [], - i = -1, - j; - if (step < 0) while ((j = start + step * ++i) > stop) range.push(j); - else while ((j = start + step * ++i) < stop) range.push(j); - return range; -}; -d3.requote = function(s) { - return s.replace(d3_requote_re, "\\$&"); -}; - -var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g; -d3.round = function(x, n) { - return n - ? Math.round(x * Math.pow(10, n)) * Math.pow(10, -n) - : Math.round(x); -}; -d3.xhr = function(url, mime, callback) { - var req = new XMLHttpRequest; - if (arguments.length < 3) callback = mime; - else if (mime && req.overrideMimeType) req.overrideMimeType(mime); - req.open("GET", url, true); - req.onreadystatechange = function() { - if (req.readyState === 4) callback(req.status < 300 ? req : null); - }; - req.send(null); -}; -d3.text = function(url, mime, callback) { - function ready(req) { - callback(req && req.responseText); - } - if (arguments.length < 3) { - callback = mime; - mime = null; - } - d3.xhr(url, mime, ready); -}; -d3.json = function(url, callback) { - d3.text(url, "application/json", function(text) { - callback(text ? JSON.parse(text) : null); - }); -}; -d3.html = function(url, callback) { - d3.text(url, "text/html", function(text) { - if (text != null) { // Treat empty string as valid HTML. - var range = document.createRange(); - range.selectNode(document.body); - text = range.createContextualFragment(text); - } - callback(text); - }); -}; -d3.xml = function(url, mime, callback) { - function ready(req) { - callback(req && req.responseXML); - } - if (arguments.length < 3) { - callback = mime; - mime = null; - } - d3.xhr(url, mime, ready); -}; -var d3_nsPrefix = { - svg: "http://www.w3.org/2000/svg", - xhtml: "http://www.w3.org/1999/xhtml", - xlink: "http://www.w3.org/1999/xlink", - xml: "http://www.w3.org/XML/1998/namespace", - xmlns: "http://www.w3.org/2000/xmlns/" -}; - -d3.ns = { - prefix: d3_nsPrefix, - qualify: function(name) { - var i = name.indexOf(":"); - return i < 0 ? (name in d3_nsPrefix - ? {space: d3_nsPrefix[name], local: name} : name) - : {space: d3_nsPrefix[name.substring(0, i)], local: name.substring(i + 1)}; - } -}; -d3.dispatch = function() { - var dispatch = new d3_dispatch(), - i = -1, - n = arguments.length; - while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(); - return dispatch; -}; - -function d3_dispatch() {} - -d3_dispatch.prototype.on = function(type, listener) { - var i = type.indexOf("."), - name = ""; - - // Extract optional namespace, e.g., "click.foo" - if (i > 0) { - name = type.substring(i + 1); - type = type.substring(0, i); - } - - return arguments.length < 2 - ? this[type].on(name) - : (this[type].on(name, listener), this); -}; - -function d3_dispatch_event() { - var listeners = [], - listenerByName = {}; - - function dispatch() { - var z = listeners, // defensive reference - i = -1, - n = z.length, - l; - while (++i < n) if (l = z[i].on) l.apply(this, arguments); - } - - dispatch.on = function(name, listener) { - var l, i; - - // return the current listener, if any - if (arguments.length < 2) return (l = listenerByName[name]) && l.on; - - // remove the old listener, if any (with copy-on-write) - if (l = listenerByName[name]) { - l.on = null; - listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1)); - delete listenerByName[name]; - } - - // add the new listener, if any - if (listener) { - listeners.push(listenerByName[name] = {on: listener}); - } - - return dispatch; - }; - - return dispatch; -}; -// TODO align -d3.format = function(specifier) { - var match = d3_format_re.exec(specifier), - fill = match[1] || " ", - sign = match[3] || "", - zfill = match[5], - width = +match[6], - comma = match[7], - precision = match[8], - type = match[9], - scale = 1, - suffix = "", - integer = false; - - if (precision) precision = +precision.substring(1); - - if (zfill) { - fill = "0"; // TODO align = "="; - if (comma) width -= Math.floor((width - 1) / 4); - } - - switch (type) { - case "n": comma = true; type = "g"; break; - case "%": scale = 100; suffix = "%"; type = "f"; break; - case "p": scale = 100; suffix = "%"; type = "r"; break; - case "d": integer = true; precision = 0; break; - case "s": scale = -1; type = "r"; break; - } - - // If no precision is specified for r, fallback to general notation. - if (type == "r" && !precision) type = "g"; - - type = d3_format_types[type] || d3_format_typeDefault; - - return function(value) { - - // Return the empty string for floats formatted as ints. - if (integer && (value % 1)) return ""; - - // Convert negative to positive, and record the sign prefix. - var negative = (value < 0) && (value = -value) ? "\u2212" : sign; - - // Apply the scale, computing it from the value's exponent for si format. - if (scale < 0) { - var prefix = d3.formatPrefix(value, precision); - value *= prefix.scale; - suffix = prefix.symbol; - } else { - value *= scale; - } - - // Convert to the desired precision. - value = type(value, precision); - - // If the fill character is 0, the sign and group is applied after the fill. - if (zfill) { - var length = value.length + negative.length; - if (length < width) value = new Array(width - length + 1).join(fill) + value; - if (comma) value = d3_format_group(value); - value = negative + value; - } - - // Otherwise (e.g., space-filling), the sign and group is applied before. - else { - if (comma) value = d3_format_group(value); - value = negative + value; - var length = value.length; - if (length < width) value = new Array(width - length + 1).join(fill) + value; - } - - return value + suffix; - }; -}; - -// [[fill]align][sign][#][0][width][,][.precision][type] -var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?(#)?(0)?([0-9]+)?(,)?(\.[0-9]+)?([a-zA-Z%])?/; - -var d3_format_types = { - g: function(x, p) { return x.toPrecision(p); }, - e: function(x, p) { return x.toExponential(p); }, - f: function(x, p) { return x.toFixed(p); }, - r: function(x, p) { return d3.round(x, p = d3_format_precision(x, p)).toFixed(Math.max(0, Math.min(20, p))); } -}; - -function d3_format_precision(x, p) { - return p - (x ? 1 + Math.floor(Math.log(x + Math.pow(10, 1 + Math.floor(Math.log(x) / Math.LN10) - p)) / Math.LN10) : 1); -} - -function d3_format_typeDefault(x) { - return x + ""; -} - -// Apply comma grouping for thousands. -function d3_format_group(value) { - var i = value.lastIndexOf("."), - f = i >= 0 ? value.substring(i) : (i = value.length, ""), - t = []; - while (i > 0) t.push(value.substring(i -= 3, i + 3)); - return t.reverse().join(",") + f; -} -var d3_formatPrefixes = ["y","z","a","f","p","n","μ","m","","k","M","G","T","P","E","Z","Y"].map(d3_formatPrefix); - -d3.formatPrefix = function(value, precision) { - var i = 0; - if (value) { - if (value < 0) value *= -1; - if (precision) value = d3.round(value, d3_format_precision(value, precision)); - i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10); - i = Math.max(-24, Math.min(24, Math.floor((i <= 0 ? i + 1 : i - 1) / 3) * 3)); - } - return d3_formatPrefixes[8 + i / 3]; -}; - -function d3_formatPrefix(d, i) { - return { - scale: Math.pow(10, (8 - i) * 3), - symbol: d - }; -} - -/* - * TERMS OF USE - EASING EQUATIONS - * - * Open source under the BSD License. - * - * Copyright 2001 Robert Penner - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * - Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. - * - * - Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * - Neither the name of the author nor the names of contributors may be used to - * endorse or promote products derived from this software without specific - * prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -var d3_ease_quad = d3_ease_poly(2), - d3_ease_cubic = d3_ease_poly(3); - -var d3_ease = { - linear: function() { return d3_ease_linear; }, - poly: d3_ease_poly, - quad: function() { return d3_ease_quad; }, - cubic: function() { return d3_ease_cubic; }, - sin: function() { return d3_ease_sin; }, - exp: function() { return d3_ease_exp; }, - circle: function() { return d3_ease_circle; }, - elastic: d3_ease_elastic, - back: d3_ease_back, - bounce: function() { return d3_ease_bounce; } -}; - -var d3_ease_mode = { - "in": function(f) { return f; }, - "out": d3_ease_reverse, - "in-out": d3_ease_reflect, - "out-in": function(f) { return d3_ease_reflect(d3_ease_reverse(f)); } -}; - -d3.ease = function(name) { - var i = name.indexOf("-"), - t = i >= 0 ? name.substring(0, i) : name, - m = i >= 0 ? name.substring(i + 1) : "in"; - return d3_ease_clamp(d3_ease_mode[m](d3_ease[t].apply(null, Array.prototype.slice.call(arguments, 1)))); -}; - -function d3_ease_clamp(f) { - return function(t) { - return t <= 0 ? 0 : t >= 1 ? 1 : f(t); - }; -} - -function d3_ease_reverse(f) { - return function(t) { - return 1 - f(1 - t); - }; -} - -function d3_ease_reflect(f) { - return function(t) { - return .5 * (t < .5 ? f(2 * t) : (2 - f(2 - 2 * t))); - }; -} - -function d3_ease_linear(t) { - return t; -} - -function d3_ease_poly(e) { - return function(t) { - return Math.pow(t, e); - } -} - -function d3_ease_sin(t) { - return 1 - Math.cos(t * Math.PI / 2); -} - -function d3_ease_exp(t) { - return Math.pow(2, 10 * (t - 1)); -} - -function d3_ease_circle(t) { - return 1 - Math.sqrt(1 - t * t); -} - -function d3_ease_elastic(a, p) { - var s; - if (arguments.length < 2) p = 0.45; - if (arguments.length < 1) { a = 1; s = p / 4; } - else s = p / (2 * Math.PI) * Math.asin(1 / a); - return function(t) { - return 1 + a * Math.pow(2, 10 * -t) * Math.sin((t - s) * 2 * Math.PI / p); - }; -} - -function d3_ease_back(s) { - if (!s) s = 1.70158; - return function(t) { - return t * t * ((s + 1) * t - s); - }; -} - -function d3_ease_bounce(t) { - return t < 1 / 2.75 ? 7.5625 * t * t - : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 - : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 - : 7.5625 * (t -= 2.625 / 2.75) * t + .984375; -} -d3.event = null; - -function d3_eventCancel() { - d3.event.stopPropagation(); - d3.event.preventDefault(); -} -d3.interpolate = function(a, b) { - var i = d3.interpolators.length, f; - while (--i >= 0 && !(f = d3.interpolators[i](a, b))); - return f; -}; - -d3.interpolateNumber = function(a, b) { - b -= a; - return function(t) { return a + b * t; }; -}; - -d3.interpolateRound = function(a, b) { - b -= a; - return function(t) { return Math.round(a + b * t); }; -}; - -d3.interpolateString = function(a, b) { - var m, // current match - i, // current index - j, // current index (for coallescing) - s0 = 0, // start index of current string prefix - s1 = 0, // end index of current string prefix - s = [], // string constants and placeholders - q = [], // number interpolators - n, // q.length - o; - - // Reset our regular expression! - d3_interpolate_number.lastIndex = 0; - - // Find all numbers in b. - for (i = 0; m = d3_interpolate_number.exec(b); ++i) { - if (m.index) s.push(b.substring(s0, s1 = m.index)); - q.push({i: s.length, x: m[0]}); - s.push(null); - s0 = d3_interpolate_number.lastIndex; - } - if (s0 < b.length) s.push(b.substring(s0)); - - // Find all numbers in a. - for (i = 0, n = q.length; (m = d3_interpolate_number.exec(a)) && i < n; ++i) { - o = q[i]; - if (o.x == m[0]) { // The numbers match, so coallesce. - if (o.i) { - if (s[o.i + 1] == null) { // This match is followed by another number. - s[o.i - 1] += o.x; - s.splice(o.i, 1); - for (j = i + 1; j < n; ++j) q[j].i--; - } else { // This match is followed by a string, so coallesce twice. - s[o.i - 1] += o.x + s[o.i + 1]; - s.splice(o.i, 2); - for (j = i + 1; j < n; ++j) q[j].i -= 2; - } - } else { - if (s[o.i + 1] == null) { // This match is followed by another number. - s[o.i] = o.x; - } else { // This match is followed by a string, so coallesce twice. - s[o.i] = o.x + s[o.i + 1]; - s.splice(o.i + 1, 1); - for (j = i + 1; j < n; ++j) q[j].i--; - } - } - q.splice(i, 1); - n--; - i--; - } else { - o.x = d3.interpolateNumber(parseFloat(m[0]), parseFloat(o.x)); - } - } - - // Remove any numbers in b not found in a. - while (i < n) { - o = q.pop(); - if (s[o.i + 1] == null) { // This match is followed by another number. - s[o.i] = o.x; - } else { // This match is followed by a string, so coallesce twice. - s[o.i] = o.x + s[o.i + 1]; - s.splice(o.i + 1, 1); - } - n--; - } - - // Special optimization for only a single match. - if (s.length === 1) { - return s[0] == null ? q[0].x : function() { return b; }; - } - - // Otherwise, interpolate each of the numbers and rejoin the string. - return function(t) { - for (i = 0; i < n; ++i) s[(o = q[i]).i] = o.x(t); - return s.join(""); - }; -}; - -d3.interpolateTransform = function(a, b) { - return d3.interpolateString(d3.transform(a) + "", d3.transform(b) + ""); -}; - -d3.interpolateRgb = function(a, b) { - a = d3.rgb(a); - b = d3.rgb(b); - var ar = a.r, - ag = a.g, - ab = a.b, - br = b.r - ar, - bg = b.g - ag, - bb = b.b - ab; - return function(t) { - return "#" - + d3_rgb_hex(Math.round(ar + br * t)) - + d3_rgb_hex(Math.round(ag + bg * t)) - + d3_rgb_hex(Math.round(ab + bb * t)); - }; -}; - -// interpolates HSL space, but outputs RGB string (for compatibility) -d3.interpolateHsl = function(a, b) { - a = d3.hsl(a); - b = d3.hsl(b); - var h0 = a.h, - s0 = a.s, - l0 = a.l, - h1 = b.h - h0, - s1 = b.s - s0, - l1 = b.l - l0; - return function(t) { - return d3_hsl_rgb(h0 + h1 * t, s0 + s1 * t, l0 + l1 * t).toString(); - }; -}; - -d3.interpolateArray = function(a, b) { - var x = [], - c = [], - na = a.length, - nb = b.length, - n0 = Math.min(a.length, b.length), - i; - for (i = 0; i < n0; ++i) x.push(d3.interpolate(a[i], b[i])); - for (; i < na; ++i) c[i] = a[i]; - for (; i < nb; ++i) c[i] = b[i]; - return function(t) { - for (i = 0; i < n0; ++i) c[i] = x[i](t); - return c; - }; -}; - -d3.interpolateObject = function(a, b) { - var i = {}, - c = {}, - k; - for (k in a) { - if (k in b) { - i[k] = d3_interpolateByName(k)(a[k], b[k]); - } else { - c[k] = a[k]; - } - } - for (k in b) { - if (!(k in a)) { - c[k] = b[k]; - } - } - return function(t) { - for (k in i) c[k] = i[k](t); - return c; - }; -} - -var d3_interpolate_number = /[-+]?(?:\d*\.?\d+)(?:[eE][-+]?\d+)?/g; - -function d3_interpolateByName(n) { - return n == "transform" - ? d3.interpolateTransform - : d3.interpolate; -} - -d3.interpolators = [ - d3.interpolateObject, - function(a, b) { return (b instanceof Array) && d3.interpolateArray(a, b); }, - function(a, b) { return (typeof a === "string" || typeof b === "string") && d3.interpolateString(a + "", b + ""); }, - function(a, b) { return (typeof b === "string" ? b in d3_rgb_names || /^(#|rgb\(|hsl\()/.test(b) : b instanceof d3_Rgb || b instanceof d3_Hsl) && d3.interpolateRgb(a, b); }, - function(a, b) { return !isNaN(a = +a) && !isNaN(b = +b) && d3.interpolateNumber(a, b); } -]; -function d3_uninterpolateNumber(a, b) { - b = b - (a = +a) ? 1 / (b - a) : 0; - return function(x) { return (x - a) * b; }; -} - -function d3_uninterpolateClamp(a, b) { - b = b - (a = +a) ? 1 / (b - a) : 0; - return function(x) { return Math.max(0, Math.min(1, (x - a) * b)); }; -} -d3.rgb = function(r, g, b) { - return arguments.length === 1 - ? (r instanceof d3_Rgb ? d3_rgb(r.r, r.g, r.b) - : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb)) - : d3_rgb(~~r, ~~g, ~~b); -}; - -function d3_rgb(r, g, b) { - return new d3_Rgb(r, g, b); -} - -function d3_Rgb(r, g, b) { - this.r = r; - this.g = g; - this.b = b; -} - -d3_Rgb.prototype.brighter = function(k) { - k = Math.pow(0.7, arguments.length ? k : 1); - var r = this.r, - g = this.g, - b = this.b, - i = 30; - if (!r && !g && !b) return d3_rgb(i, i, i); - if (r && r < i) r = i; - if (g && g < i) g = i; - if (b && b < i) b = i; - return d3_rgb( - Math.min(255, Math.floor(r / k)), - Math.min(255, Math.floor(g / k)), - Math.min(255, Math.floor(b / k))); -}; - -d3_Rgb.prototype.darker = function(k) { - k = Math.pow(0.7, arguments.length ? k : 1); - return d3_rgb( - Math.floor(k * this.r), - Math.floor(k * this.g), - Math.floor(k * this.b)); -}; - -d3_Rgb.prototype.hsl = function() { - return d3_rgb_hsl(this.r, this.g, this.b); -}; - -d3_Rgb.prototype.toString = function() { - return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b); -}; - -function d3_rgb_hex(v) { - return v < 0x10 - ? "0" + Math.max(0, v).toString(16) - : Math.min(255, v).toString(16); -} - -function d3_rgb_parse(format, rgb, hsl) { - var r = 0, // red channel; int in [0, 255] - g = 0, // green channel; int in [0, 255] - b = 0, // blue channel; int in [0, 255] - m1, // CSS color specification match - m2, // CSS color specification type (e.g., rgb) - name; - - /* Handle hsl, rgb. */ - m1 = /([a-z]+)\((.*)\)/i.exec(format); - if (m1) { - m2 = m1[2].split(","); - switch (m1[1]) { - case "hsl": { - return hsl( - parseFloat(m2[0]), // degrees - parseFloat(m2[1]) / 100, // percentage - parseFloat(m2[2]) / 100 // percentage - ); - } - case "rgb": { - return rgb( - d3_rgb_parseNumber(m2[0]), - d3_rgb_parseNumber(m2[1]), - d3_rgb_parseNumber(m2[2]) - ); - } - } - } - - /* Named colors. */ - if (name = d3_rgb_names[format]) return rgb(name.r, name.g, name.b); - - /* Hexadecimal colors: #rgb and #rrggbb. */ - if (format != null && format.charAt(0) === "#") { - if (format.length === 4) { - r = format.charAt(1); r += r; - g = format.charAt(2); g += g; - b = format.charAt(3); b += b; - } else if (format.length === 7) { - r = format.substring(1, 3); - g = format.substring(3, 5); - b = format.substring(5, 7); - } - r = parseInt(r, 16); - g = parseInt(g, 16); - b = parseInt(b, 16); - } - - return rgb(r, g, b); -} - -function d3_rgb_hsl(r, g, b) { - var min = Math.min(r /= 255, g /= 255, b /= 255), - max = Math.max(r, g, b), - d = max - min, - h, - s, - l = (max + min) / 2; - if (d) { - s = l < .5 ? d / (max + min) : d / (2 - max - min); - if (r == max) h = (g - b) / d + (g < b ? 6 : 0); - else if (g == max) h = (b - r) / d + 2; - else h = (r - g) / d + 4; - h *= 60; - } else { - s = h = 0; - } - return d3_hsl(h, s, l); -} - -function d3_rgb_parseNumber(c) { // either integer or percentage - var f = parseFloat(c); - return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f; -} - -var d3_rgb_names = { - aliceblue: "#f0f8ff", - antiquewhite: "#faebd7", - aqua: "#00ffff", - aquamarine: "#7fffd4", - azure: "#f0ffff", - beige: "#f5f5dc", - bisque: "#ffe4c4", - black: "#000000", - blanchedalmond: "#ffebcd", - blue: "#0000ff", - blueviolet: "#8a2be2", - brown: "#a52a2a", - burlywood: "#deb887", - cadetblue: "#5f9ea0", - chartreuse: "#7fff00", - chocolate: "#d2691e", - coral: "#ff7f50", - cornflowerblue: "#6495ed", - cornsilk: "#fff8dc", - crimson: "#dc143c", - cyan: "#00ffff", - darkblue: "#00008b", - darkcyan: "#008b8b", - darkgoldenrod: "#b8860b", - darkgray: "#a9a9a9", - darkgreen: "#006400", - darkgrey: "#a9a9a9", - darkkhaki: "#bdb76b", - darkmagenta: "#8b008b", - darkolivegreen: "#556b2f", - darkorange: "#ff8c00", - darkorchid: "#9932cc", - darkred: "#8b0000", - darksalmon: "#e9967a", - darkseagreen: "#8fbc8f", - darkslateblue: "#483d8b", - darkslategray: "#2f4f4f", - darkslategrey: "#2f4f4f", - darkturquoise: "#00ced1", - darkviolet: "#9400d3", - deeppink: "#ff1493", - deepskyblue: "#00bfff", - dimgray: "#696969", - dimgrey: "#696969", - dodgerblue: "#1e90ff", - firebrick: "#b22222", - floralwhite: "#fffaf0", - forestgreen: "#228b22", - fuchsia: "#ff00ff", - gainsboro: "#dcdcdc", - ghostwhite: "#f8f8ff", - gold: "#ffd700", - goldenrod: "#daa520", - gray: "#808080", - green: "#008000", - greenyellow: "#adff2f", - grey: "#808080", - honeydew: "#f0fff0", - hotpink: "#ff69b4", - indianred: "#cd5c5c", - indigo: "#4b0082", - ivory: "#fffff0", - khaki: "#f0e68c", - lavender: "#e6e6fa", - lavenderblush: "#fff0f5", - lawngreen: "#7cfc00", - lemonchiffon: "#fffacd", - lightblue: "#add8e6", - lightcoral: "#f08080", - lightcyan: "#e0ffff", - lightgoldenrodyellow: "#fafad2", - lightgray: "#d3d3d3", - lightgreen: "#90ee90", - lightgrey: "#d3d3d3", - lightpink: "#ffb6c1", - lightsalmon: "#ffa07a", - lightseagreen: "#20b2aa", - lightskyblue: "#87cefa", - lightslategray: "#778899", - lightslategrey: "#778899", - lightsteelblue: "#b0c4de", - lightyellow: "#ffffe0", - lime: "#00ff00", - limegreen: "#32cd32", - linen: "#faf0e6", - magenta: "#ff00ff", - maroon: "#800000", - mediumaquamarine: "#66cdaa", - mediumblue: "#0000cd", - mediumorchid: "#ba55d3", - mediumpurple: "#9370db", - mediumseagreen: "#3cb371", - mediumslateblue: "#7b68ee", - mediumspringgreen: "#00fa9a", - mediumturquoise: "#48d1cc", - mediumvioletred: "#c71585", - midnightblue: "#191970", - mintcream: "#f5fffa", - mistyrose: "#ffe4e1", - moccasin: "#ffe4b5", - navajowhite: "#ffdead", - navy: "#000080", - oldlace: "#fdf5e6", - olive: "#808000", - olivedrab: "#6b8e23", - orange: "#ffa500", - orangered: "#ff4500", - orchid: "#da70d6", - palegoldenrod: "#eee8aa", - palegreen: "#98fb98", - paleturquoise: "#afeeee", - palevioletred: "#db7093", - papayawhip: "#ffefd5", - peachpuff: "#ffdab9", - peru: "#cd853f", - pink: "#ffc0cb", - plum: "#dda0dd", - powderblue: "#b0e0e6", - purple: "#800080", - red: "#ff0000", - rosybrown: "#bc8f8f", - royalblue: "#4169e1", - saddlebrown: "#8b4513", - salmon: "#fa8072", - sandybrown: "#f4a460", - seagreen: "#2e8b57", - seashell: "#fff5ee", - sienna: "#a0522d", - silver: "#c0c0c0", - skyblue: "#87ceeb", - slateblue: "#6a5acd", - slategray: "#708090", - slategrey: "#708090", - snow: "#fffafa", - springgreen: "#00ff7f", - steelblue: "#4682b4", - tan: "#d2b48c", - teal: "#008080", - thistle: "#d8bfd8", - tomato: "#ff6347", - turquoise: "#40e0d0", - violet: "#ee82ee", - wheat: "#f5deb3", - white: "#ffffff", - whitesmoke: "#f5f5f5", - yellow: "#ffff00", - yellowgreen: "#9acd32" -}; - -for (var d3_rgb_name in d3_rgb_names) { - d3_rgb_names[d3_rgb_name] = d3_rgb_parse( - d3_rgb_names[d3_rgb_name], - d3_rgb, - d3_hsl_rgb); -} -d3.hsl = function(h, s, l) { - return arguments.length === 1 - ? (h instanceof d3_Hsl ? d3_hsl(h.h, h.s, h.l) - : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl)) - : d3_hsl(+h, +s, +l); -}; - -function d3_hsl(h, s, l) { - return new d3_Hsl(h, s, l); -} - -function d3_Hsl(h, s, l) { - this.h = h; - this.s = s; - this.l = l; -} - -d3_Hsl.prototype.brighter = function(k) { - k = Math.pow(0.7, arguments.length ? k : 1); - return d3_hsl(this.h, this.s, this.l / k); -}; - -d3_Hsl.prototype.darker = function(k) { - k = Math.pow(0.7, arguments.length ? k : 1); - return d3_hsl(this.h, this.s, k * this.l); -}; - -d3_Hsl.prototype.rgb = function() { - return d3_hsl_rgb(this.h, this.s, this.l); -}; - -d3_Hsl.prototype.toString = function() { - return this.rgb().toString(); -}; - -function d3_hsl_rgb(h, s, l) { - var m1, - m2; - - /* Some simple corrections for h, s and l. */ - h = h % 360; if (h < 0) h += 360; - s = s < 0 ? 0 : s > 1 ? 1 : s; - l = l < 0 ? 0 : l > 1 ? 1 : l; - - /* From FvD 13.37, CSS Color Module Level 3 */ - m2 = l <= .5 ? l * (1 + s) : l + s - l * s; - m1 = 2 * l - m2; - - function v(h) { - if (h > 360) h -= 360; - else if (h < 0) h += 360; - if (h < 60) return m1 + (m2 - m1) * h / 60; - if (h < 180) return m2; - if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60; - return m1; - } - - function vv(h) { - return Math.round(v(h) * 255); - } - - return d3_rgb(vv(h + 120), vv(h), vv(h - 120)); -} -function d3_selection(groups) { - d3_arraySubclass(groups, d3_selectionPrototype); - return groups; -} - -var d3_select = function(s, n) { return n.querySelector(s); }, - d3_selectAll = function(s, n) { return n.querySelectorAll(s); }; - -// Prefer Sizzle, if available. -if (typeof Sizzle === "function") { - d3_select = function(s, n) { return Sizzle(s, n)[0]; }; - d3_selectAll = function(s, n) { return Sizzle.uniqueSort(Sizzle(s, n)); }; -} - -var d3_selectionPrototype = []; - -d3.selection = function() { - return d3_selectionRoot; -}; - -d3.selection.prototype = d3_selectionPrototype; -d3_selectionPrototype.select = function(selector) { - var subgroups = [], - subgroup, - subnode, - group, - node; - - if (typeof selector !== "function") selector = d3_selection_selector(selector); - - for (var j = -1, m = this.length; ++j < m;) { - subgroups.push(subgroup = []); - subgroup.parentNode = (group = this[j]).parentNode; - for (var i = -1, n = group.length; ++i < n;) { - if (node = group[i]) { - subgroup.push(subnode = selector.call(node, node.__data__, i)); - if (subnode && "__data__" in node) subnode.__data__ = node.__data__; - } else { - subgroup.push(null); - } - } - } - - return d3_selection(subgroups); -}; - -function d3_selection_selector(selector) { - return function() { - return d3_select(selector, this); - }; -} -d3_selectionPrototype.selectAll = function(selector) { - var subgroups = [], - subgroup, - node; - - if (typeof selector !== "function") selector = d3_selection_selectorAll(selector); - - for (var j = -1, m = this.length; ++j < m;) { - for (var group = this[j], i = -1, n = group.length; ++i < n;) { - if (node = group[i]) { - subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i))); - subgroup.parentNode = node; - } - } - } - - return d3_selection(subgroups); -}; - -function d3_selection_selectorAll(selector) { - return function() { - return d3_selectAll(selector, this); - }; -} -d3_selectionPrototype.attr = function(name, value) { - name = d3.ns.qualify(name); - - // If no value is specified, return the first value. - if (arguments.length < 2) { - var node = this.node(); - return name.local - ? node.getAttributeNS(name.space, name.local) - : node.getAttribute(name); - } - - function attrNull() { - this.removeAttribute(name); - } - - function attrNullNS() { - this.removeAttributeNS(name.space, name.local); - } - - function attrConstant() { - this.setAttribute(name, value); - } - - function attrConstantNS() { - this.setAttributeNS(name.space, name.local, value); - } - - function attrFunction() { - var x = value.apply(this, arguments); - if (x == null) this.removeAttribute(name); - else this.setAttribute(name, x); - } - - function attrFunctionNS() { - var x = value.apply(this, arguments); - if (x == null) this.removeAttributeNS(name.space, name.local); - else this.setAttributeNS(name.space, name.local, x); - } - - return this.each(value == null - ? (name.local ? attrNullNS : attrNull) : (typeof value === "function" - ? (name.local ? attrFunctionNS : attrFunction) - : (name.local ? attrConstantNS : attrConstant))); -}; -d3_selectionPrototype.classed = function(name, value) { - var names = name.split(d3_selection_classedWhitespace), - n = names.length, - i = -1; - if (arguments.length > 1) { - while (++i < n) d3_selection_classed.call(this, names[i], value); - return this; - } else { - while (++i < n) if (!d3_selection_classed.call(this, names[i])) return false; - return true; - } -}; - -var d3_selection_classedWhitespace = /\s+/g; - -function d3_selection_classed(name, value) { - var re = new RegExp("(^|\\s+)" + d3.requote(name) + "(\\s+|$)", "g"); - - // If no value is specified, return the first value. - if (arguments.length < 2) { - var node = this.node(); - if (c = node.classList) return c.contains(name); - var c = node.className; - re.lastIndex = 0; - return re.test(c.baseVal != null ? c.baseVal : c); - } - - function classedAdd() { - if (c = this.classList) return c.add(name); - var c = this.className, - cb = c.baseVal != null, - cv = cb ? c.baseVal : c; - re.lastIndex = 0; - if (!re.test(cv)) { - cv = d3_collapse(cv + " " + name); - if (cb) c.baseVal = cv; - else this.className = cv; - } - } - - function classedRemove() { - if (c = this.classList) return c.remove(name); - var c = this.className, - cb = c.baseVal != null, - cv = cb ? c.baseVal : c; - cv = d3_collapse(cv.replace(re, " ")); - if (cb) c.baseVal = cv; - else this.className = cv; - } - - function classedFunction() { - (value.apply(this, arguments) - ? classedAdd - : classedRemove).call(this); - } - - return this.each(typeof value === "function" - ? classedFunction : value - ? classedAdd - : classedRemove); -} -d3_selectionPrototype.style = function(name, value, priority) { - if (arguments.length < 3) priority = ""; - - // If no value is specified, return the first value. - if (arguments.length < 2) return window - .getComputedStyle(this.node(), null) - .getPropertyValue(name); - - function styleNull() { - this.style.removeProperty(name); - } - - function styleConstant() { - this.style.setProperty(name, value, priority); - } - - function styleFunction() { - var x = value.apply(this, arguments); - if (x == null) this.style.removeProperty(name); - else this.style.setProperty(name, x, priority); - } - - return this.each(value == null - ? styleNull : (typeof value === "function" - ? styleFunction : styleConstant)); -}; -d3_selectionPrototype.property = function(name, value) { - - // If no value is specified, return the first value. - if (arguments.length < 2) return this.node()[name]; - - function propertyNull() { - delete this[name]; - } - - function propertyConstant() { - this[name] = value; - } - - function propertyFunction() { - var x = value.apply(this, arguments); - if (x == null) delete this[name]; - else this[name] = x; - } - - return this.each(value == null - ? propertyNull : (typeof value === "function" - ? propertyFunction : propertyConstant)); -}; -d3_selectionPrototype.text = function(value) { - return arguments.length < 1 ? this.node().textContent - : (this.each(typeof value === "function" - ? function() { this.textContent = value.apply(this, arguments); } - : function() { this.textContent = value; })); -}; -d3_selectionPrototype.html = function(value) { - return arguments.length < 1 ? this.node().innerHTML - : (this.each(typeof value === "function" - ? function() { this.innerHTML = value.apply(this, arguments); } - : function() { this.innerHTML = value; })); -}; -// TODO append(node)? -// TODO append(function)? -d3_selectionPrototype.append = function(name) { - name = d3.ns.qualify(name); - - function append() { - return this.appendChild(document.createElementNS(this.namespaceURI, name)); - } - - function appendNS() { - return this.appendChild(document.createElementNS(name.space, name.local)); - } - - return this.select(name.local ? appendNS : append); -}; -// TODO insert(node, function)? -// TODO insert(function, string)? -// TODO insert(function, function)? -d3_selectionPrototype.insert = function(name, before) { - name = d3.ns.qualify(name); - - function insert() { - return this.insertBefore( - document.createElementNS(this.namespaceURI, name), - d3_select(before, this)); - } - - function insertNS() { - return this.insertBefore( - document.createElementNS(name.space, name.local), - d3_select(before, this)); - } - - return this.select(name.local ? insertNS : insert); -}; -// TODO remove(selector)? -// TODO remove(node)? -// TODO remove(function)? -d3_selectionPrototype.remove = function() { - return this.each(function() { - var parent = this.parentNode; - if (parent) parent.removeChild(this); - }); -}; -// TODO data(null) for clearing data? -d3_selectionPrototype.data = function(data, join) { - var enter = [], - update = [], - exit = []; - - function bind(group, groupData) { - var i, - n = group.length, - m = groupData.length, - n0 = Math.min(n, m), - n1 = Math.max(n, m), - updateNodes = [], - enterNodes = [], - exitNodes = [], - node, - nodeData; - - if (join) { - var nodeByKey = {}, - keys = [], - key, - j = groupData.length; - - for (i = -1; ++i < n;) { - key = join.call(node = group[i], node.__data__, i); - if (key in nodeByKey) { - exitNodes[j++] = node; // duplicate key - } else { - nodeByKey[key] = node; - } - keys.push(key); - } - - for (i = -1; ++i < m;) { - node = nodeByKey[key = join.call(groupData, nodeData = groupData[i], i)]; - if (node) { - node.__data__ = nodeData; - updateNodes[i] = node; - enterNodes[i] = exitNodes[i] = null; - } else { - enterNodes[i] = d3_selection_dataNode(nodeData); - updateNodes[i] = exitNodes[i] = null; - } - delete nodeByKey[key]; - } - - for (i = -1; ++i < n;) { - if (keys[i] in nodeByKey) { - exitNodes[i] = group[i]; - } - } - } else { - for (i = -1; ++i < n0;) { - node = group[i]; - nodeData = groupData[i]; - if (node) { - node.__data__ = nodeData; - updateNodes[i] = node; - enterNodes[i] = exitNodes[i] = null; - } else { - enterNodes[i] = d3_selection_dataNode(nodeData); - updateNodes[i] = exitNodes[i] = null; - } - } - for (; i < m; ++i) { - enterNodes[i] = d3_selection_dataNode(groupData[i]); - updateNodes[i] = exitNodes[i] = null; - } - for (; i < n1; ++i) { - exitNodes[i] = group[i]; - enterNodes[i] = updateNodes[i] = null; - } - } - - enterNodes.update - = updateNodes; - - enterNodes.parentNode - = updateNodes.parentNode - = exitNodes.parentNode - = group.parentNode; - - enter.push(enterNodes); - update.push(updateNodes); - exit.push(exitNodes); - } - - var i = -1, - n = this.length, - group; - if (typeof data === "function") { - while (++i < n) { - bind(group = this[i], data.call(group, group.parentNode.__data__, i)); - } - } else { - while (++i < n) { - bind(group = this[i], data); - } - } - - var selection = d3_selection(update); - selection.enter = function() { return d3_selection_enter(enter); }; - selection.exit = function() { return d3_selection(exit); }; - return selection; -}; - -function d3_selection_dataNode(data) { - return {__data__: data}; -} -// TODO preserve null elements to maintain index? -d3_selectionPrototype.filter = function(filter) { - var subgroups = [], - subgroup, - group, - node; - - for (var j = 0, m = this.length; j < m; j++) { - subgroups.push(subgroup = []); - subgroup.parentNode = (group = this[j]).parentNode; - for (var i = 0, n = group.length; i < n; i++) { - if ((node = group[i]) && filter.call(node, node.__data__, i)) { - subgroup.push(node); - } - } - } - - return d3_selection(subgroups); -}; -d3_selectionPrototype.map = function(map) { - return this.each(function() { - this.__data__ = map.apply(this, arguments); - }); -}; -d3_selectionPrototype.sort = function(comparator) { - comparator = d3_selection_sortComparator.apply(this, arguments); - for (var j = 0, m = this.length; j < m; j++) { - for (var group = this[j].sort(comparator), i = 1, n = group.length, prev = group[0]; i < n; i++) { - var node = group[i]; - if (node) { - if (prev) prev.parentNode.insertBefore(node, prev.nextSibling); - prev = node; - } - } - } - return this; -}; - -function d3_selection_sortComparator(comparator) { - if (!arguments.length) comparator = d3.ascending; - return function(a, b) { - return comparator(a && a.__data__, b && b.__data__); - }; -} -// type can be namespaced, e.g., "click.foo" -// listener can be null for removal -d3_selectionPrototype.on = function(type, listener, capture) { - if (arguments.length < 3) capture = false; - - // parse the type specifier - var name = "__on" + type, i = type.indexOf("."); - if (i > 0) type = type.substring(0, i); - - // if called with only one argument, return the current listener - if (arguments.length < 2) return (i = this.node()[name]) && i._; - - // remove the old event listener, and add the new event listener - return this.each(function(d, i) { - var node = this; - - if (node[name]) node.removeEventListener(type, node[name], capture); - if (listener) node.addEventListener(type, node[name] = l, capture); - - // wrapped event listener that preserves i - function l(e) { - var o = d3.event; // Events can be reentrant (e.g., focus). - d3.event = e; - try { - listener.call(node, node.__data__, i); - } finally { - d3.event = o; - } - } - - // stash the unwrapped listener for retrieval - l._ = listener; - }); -}; -d3_selectionPrototype.each = function(callback) { - for (var j = -1, m = this.length; ++j < m;) { - for (var group = this[j], i = -1, n = group.length; ++i < n;) { - var node = group[i]; - if (node) callback.call(node, node.__data__, i, j); - } - } - return this; -}; -// -// Note: assigning to the arguments array simultaneously changes the value of -// the corresponding argument! -// -// TODO The `this` argument probably shouldn't be the first argument to the -// callback, anyway, since it's redundant. However, that will require a major -// version bump due to backwards compatibility, so I'm not changing it right -// away. -// -d3_selectionPrototype.call = function(callback) { - callback.apply(this, (arguments[0] = this, arguments)); - return this; -}; -d3_selectionPrototype.empty = function() { - return !this.node(); -}; -d3_selectionPrototype.node = function(callback) { - for (var j = 0, m = this.length; j < m; j++) { - for (var group = this[j], i = 0, n = group.length; i < n; i++) { - var node = group[i]; - if (node) return node; - } - } - return null; -}; -d3_selectionPrototype.transition = function() { - var subgroups = [], - subgroup, - node; - - for (var j = -1, m = this.length; ++j < m;) { - subgroups.push(subgroup = []); - for (var group = this[j], i = -1, n = group.length; ++i < n;) { - subgroup.push((node = group[i]) ? {node: node, delay: 0, duration: 250} : null); - } - } - - return d3_transition(subgroups, d3_transitionInheritId || ++d3_transitionId, Date.now()); -}; -var d3_selectionRoot = d3_selection([[document]]); - -d3_selectionRoot[0].parentNode = document.documentElement; - -// TODO fast singleton implementation! -// TODO select(function) -d3.select = function(selector) { - return typeof selector === "string" - ? d3_selectionRoot.select(selector) - : d3_selection([[selector]]); // assume node -}; - -// TODO selectAll(function) -d3.selectAll = function(selector) { - return typeof selector === "string" - ? d3_selectionRoot.selectAll(selector) - : d3_selection([d3_array(selector)]); // assume node[] -}; -function d3_selection_enter(selection) { - d3_arraySubclass(selection, d3_selection_enterPrototype); - return selection; -} - -var d3_selection_enterPrototype = []; - -d3_selection_enterPrototype.append = d3_selectionPrototype.append; -d3_selection_enterPrototype.insert = d3_selectionPrototype.insert; -d3_selection_enterPrototype.empty = d3_selectionPrototype.empty; -d3_selection_enterPrototype.node = d3_selectionPrototype.node; -d3_selection_enterPrototype.select = function(selector) { - var subgroups = [], - subgroup, - subnode, - upgroup, - group, - node; - - for (var j = -1, m = this.length; ++j < m;) { - upgroup = (group = this[j]).update; - subgroups.push(subgroup = []); - subgroup.parentNode = group.parentNode; - for (var i = -1, n = group.length; ++i < n;) { - if (node = group[i]) { - subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i)); - subnode.__data__ = node.__data__; - } else { - subgroup.push(null); - } - } - } - - return d3_selection(subgroups); -}; -function d3_transition(groups, id, time) { - d3_arraySubclass(groups, d3_transitionPrototype); - - var tweens = {}, - event = d3.dispatch("start", "end"), - ease = d3_transitionEase; - - groups.id = id; - - groups.time = time; - - groups.tween = function(name, tween) { - if (arguments.length < 2) return tweens[name]; - if (tween == null) delete tweens[name]; - else tweens[name] = tween; - return groups; - }; - - groups.ease = function(value) { - if (!arguments.length) return ease; - ease = typeof value === "function" ? value : d3.ease.apply(d3, arguments); - return groups; - }; - - groups.each = function(type, listener) { - if (arguments.length < 2) return d3_transition_each.call(groups, type); - event.on(type, listener); - return groups; - }; - - d3.timer(function(elapsed) { - groups.each(function(d, i, j) { - var tweened = [], - node = this, - delay = groups[j][i].delay, - duration = groups[j][i].duration, - lock = node.__transition__ || (node.__transition__ = {active: 0, count: 0}); - - ++lock.count; - - delay <= elapsed ? start(elapsed) : d3.timer(start, delay, time); - - function start(elapsed) { - if (lock.active > id) return stop(); - lock.active = id; - - for (var tween in tweens) { - if (tween = tweens[tween].call(node, d, i)) { - tweened.push(tween); - } - } - - event.start.call(node, d, i); - if (!tick(elapsed)) d3.timer(tick, 0, time); - return 1; - } - - function tick(elapsed) { - if (lock.active !== id) return stop(); - - var t = (elapsed - delay) / duration, - e = ease(t), - n = tweened.length; - - while (n > 0) { - tweened[--n].call(node, e); - } - - if (t >= 1) { - stop(); - d3_transitionInheritId = id; - event.end.call(node, d, i); - d3_transitionInheritId = 0; - return 1; - } - } - - function stop() { - if (!--lock.count) delete node.__transition__; - return 1; - } - }); - return 1; - }, 0, time); - - return groups; -} - -var d3_transitionRemove = {}; - -function d3_transitionNull(d, i, a) { - return a != "" && d3_transitionRemove; -} - -function d3_transitionTween(name, b) { - var interpolate = d3_interpolateByName(name); - - function transitionFunction(d, i, a) { - var v = b.call(this, d, i); - return v == null - ? a != "" && d3_transitionRemove - : a != v && interpolate(a, v); - } - - function transitionString(d, i, a) { - return a != b && interpolate(a, b); - } - - return typeof b === "function" ? transitionFunction - : b == null ? d3_transitionNull - : (b += "", transitionString); -} - -var d3_transitionPrototype = [], - d3_transitionId = 0, - d3_transitionInheritId = 0, - d3_transitionEase = d3.ease("cubic-in-out"); - -d3_transitionPrototype.call = d3_selectionPrototype.call; - -d3.transition = function() { - return d3_selectionRoot.transition(); -}; - -d3.transition.prototype = d3_transitionPrototype; -d3_transitionPrototype.select = function(selector) { - var subgroups = [], - subgroup, - subnode, - node; - - if (typeof selector !== "function") selector = d3_selection_selector(selector); - - for (var j = -1, m = this.length; ++j < m;) { - subgroups.push(subgroup = []); - for (var group = this[j], i = -1, n = group.length; ++i < n;) { - if ((node = group[i]) && (subnode = selector.call(node.node, node.node.__data__, i))) { - if ("__data__" in node.node) subnode.__data__ = node.node.__data__; - subgroup.push({node: subnode, delay: node.delay, duration: node.duration}); - } else { - subgroup.push(null); - } - } - } - - return d3_transition(subgroups, this.id, this.time).ease(this.ease()); -}; -d3_transitionPrototype.selectAll = function(selector) { - var subgroups = [], - subgroup, - subnodes, - node; - - if (typeof selector !== "function") selector = d3_selection_selectorAll(selector); - - for (var j = -1, m = this.length; ++j < m;) { - for (var group = this[j], i = -1, n = group.length; ++i < n;) { - if (node = group[i]) { - subnodes = selector.call(node.node, node.node.__data__, i); - subgroups.push(subgroup = []); - for (var k = -1, o = subnodes.length; ++k < o;) { - subgroup.push({node: subnodes[k], delay: node.delay, duration: node.duration}); - } - } - } - } - - return d3_transition(subgroups, this.id, this.time).ease(this.ease()); -}; -d3_transitionPrototype.attr = function(name, value) { - return this.attrTween(name, d3_transitionTween(name, value)); -}; - -d3_transitionPrototype.attrTween = function(nameNS, tween) { - var name = d3.ns.qualify(nameNS); - - function attrTween(d, i) { - var f = tween.call(this, d, i, this.getAttribute(name)); - return f === d3_transitionRemove - ? (this.removeAttribute(name), null) - : f && function(t) { this.setAttribute(name, f(t)); }; - } - - function attrTweenNS(d, i) { - var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local)); - return f === d3_transitionRemove - ? (this.removeAttributeNS(name.space, name.local), null) - : f && function(t) { this.setAttributeNS(name.space, name.local, f(t)); }; - } - - return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween); -}; -d3_transitionPrototype.style = function(name, value, priority) { - if (arguments.length < 3) priority = ""; - return this.styleTween(name, d3_transitionTween(name, value), priority); -}; - -d3_transitionPrototype.styleTween = function(name, tween, priority) { - if (arguments.length < 3) priority = ""; - return this.tween("style." + name, function(d, i) { - var f = tween.call(this, d, i, window.getComputedStyle(this, null).getPropertyValue(name)); - return f === d3_transitionRemove - ? (this.style.removeProperty(name), null) - : f && function(t) { this.style.setProperty(name, f(t), priority); }; - }); -}; -d3_transitionPrototype.text = function(value) { - return this.tween("text", function(d, i) { - this.textContent = typeof value === "function" - ? value.call(this, d, i) - : value; - }); -}; -d3_transitionPrototype.remove = function() { - return this.each("end", function() { - var p; - if (!this.__transition__ && (p = this.parentNode)) p.removeChild(this); - }); -}; -d3_transitionPrototype.delay = function(value) { - var groups = this; - return groups.each(typeof value === "function" - ? function(d, i, j) { groups[j][i].delay = +value.apply(this, arguments); } - : (value = +value, function(d, i, j) { groups[j][i].delay = value; })); -}; -d3_transitionPrototype.duration = function(value) { - var groups = this; - return groups.each(typeof value === "function" - ? function(d, i, j) { groups[j][i].duration = +value.apply(this, arguments); } - : (value = +value, function(d, i, j) { groups[j][i].duration = value; })); -}; -function d3_transition_each(callback) { - for (var j = 0, m = this.length; j < m; j++) { - for (var group = this[j], i = 0, n = group.length; i < n; i++) { - var node = group[i]; - if (node) callback.call(node = node.node, node.__data__, i, j); - } - } - return this; -} -d3_transitionPrototype.transition = function() { - return this.select(d3_this); -}; -var d3_timer_queue = null, - d3_timer_interval, // is an interval (or frame) active? - d3_timer_timeout; // is a timeout active? - -// The timer will continue to fire until callback returns true. -d3.timer = function(callback, delay, then) { - var found = false, - t0, - t1 = d3_timer_queue; - - if (arguments.length < 3) { - if (arguments.length < 2) delay = 0; - else if (!isFinite(delay)) return; - then = Date.now(); - } - - // See if the callback's already in the queue. - while (t1) { - if (t1.callback === callback) { - t1.then = then; - t1.delay = delay; - found = true; - break; - } - t0 = t1; - t1 = t1.next; - } - - // Otherwise, add the callback to the queue. - if (!found) d3_timer_queue = { - callback: callback, - then: then, - delay: delay, - next: d3_timer_queue - }; - - // Start animatin'! - if (!d3_timer_interval) { - d3_timer_timeout = clearTimeout(d3_timer_timeout); - d3_timer_interval = 1; - d3_timer_frame(d3_timer_step); - } -} - -function d3_timer_step() { - var elapsed, - now = Date.now(), - t1 = d3_timer_queue; - - while (t1) { - elapsed = now - t1.then; - if (elapsed >= t1.delay) t1.flush = t1.callback(elapsed); - t1 = t1.next; - } - - var delay = d3_timer_flush() - now; - if (delay > 24) { - if (isFinite(delay)) { - clearTimeout(d3_timer_timeout); - d3_timer_timeout = setTimeout(d3_timer_step, delay); - } - d3_timer_interval = 0; - } else { - d3_timer_interval = 1; - d3_timer_frame(d3_timer_step); - } -} - -d3.timer.flush = function() { - var elapsed, - now = Date.now(), - t1 = d3_timer_queue; - - while (t1) { - elapsed = now - t1.then; - if (!t1.delay) t1.flush = t1.callback(elapsed); - t1 = t1.next; - } - - d3_timer_flush(); -}; - -// Flush after callbacks, to avoid concurrent queue modification. -function d3_timer_flush() { - var t0 = null, - t1 = d3_timer_queue, - then = Infinity; - while (t1) { - if (t1.flush) { - t1 = t0 ? t0.next = t1.next : d3_timer_queue = t1.next; - } else { - then = Math.min(then, t1.then + t1.delay); - t1 = (t0 = t1).next; - } - } - return then; -} - -var d3_timer_frame = window.requestAnimationFrame - || window.webkitRequestAnimationFrame - || window.mozRequestAnimationFrame - || window.oRequestAnimationFrame - || window.msRequestAnimationFrame - || function(callback) { setTimeout(callback, 17); }; -d3.transform = function(string) { - d3_transformG.setAttribute("transform", string); - var t = d3_transformG.transform.baseVal.consolidate(); - return new d3_transform(t ? t.matrix : d3_transformIdentity); -}; - -// Compute x-scale and normalize the first row. -// Compute shear and make second row orthogonal to first. -// Compute y-scale and normalize the second row. -// Finally, compute the rotation. -function d3_transform(m) { - var r0 = [m.a, m.b], - r1 = [m.c, m.d], - kx = d3_transformNormalize(r0), - kz = d3_transformDot(r0, r1), - ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0; - if (r0[0] * r1[1] < r1[0] * r0[1]) { - r0[0] *= -1; - r0[1] *= -1; - kx *= -1; - kz *= -1; - } - this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_transformDegrees; - this.translate = [m.e, m.f]; - this.scale = [kx, ky]; - this.skew = ky ? Math.atan2(kz, ky) * d3_transformDegrees : 0; -}; - -d3_transform.prototype.toString = function() { - return "translate(" + this.translate - + ")rotate(" + this.rotate - + ")skewX(" + this.skew - + ")scale(" + this.scale - + ")"; -}; - -function d3_transformDot(a, b) { - return a[0] * b[0] + a[1] * b[1]; -} - -function d3_transformNormalize(a) { - var k = Math.sqrt(d3_transformDot(a, a)); - if (k) { - a[0] /= k; - a[1] /= k; - } - return k; -} - -function d3_transformCombine(a, b, k) { - a[0] += k * b[0]; - a[1] += k * b[1]; - return a; -} - -var d3_transformG = document.createElementNS(d3.ns.prefix.svg, "g"), - d3_transformIdentity = {a: 1, b: 0, c: 0, d: 1, e: 0, f: 0}, - d3_transformDegrees = 180 / Math.PI; -function d3_noop() {} -d3.scale = {}; - -function d3_scaleExtent(domain) { - var start = domain[0], stop = domain[domain.length - 1]; - return start < stop ? [start, stop] : [stop, start]; -} - -function d3_scaleRange(scale) { - return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range()); -} -function d3_scale_nice(domain, nice) { - var i0 = 0, - i1 = domain.length - 1, - x0 = domain[i0], - x1 = domain[i1], - dx; - - if (x1 < x0) { - dx = i0; i0 = i1; i1 = dx; - dx = x0; x0 = x1; x1 = dx; - } - - if (dx = x1 - x0) { - nice = nice(dx); - domain[i0] = nice.floor(x0); - domain[i1] = nice.ceil(x1); - } - - return domain; -} - -function d3_scale_niceDefault() { - return Math; -} -d3.scale.linear = function() { - return d3_scale_linear([0, 1], [0, 1], d3.interpolate, false); -}; - -function d3_scale_linear(domain, range, interpolate, clamp) { - var output, - input; - - function rescale() { - var linear = domain.length == 2 ? d3_scale_bilinear : d3_scale_polylinear, - uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber; - output = linear(domain, range, uninterpolate, interpolate); - input = linear(range, domain, uninterpolate, d3.interpolate); - return scale; - } - - function scale(x) { - return output(x); - } - - // Note: requires range is coercible to number! - scale.invert = function(y) { - return input(y); - }; - - scale.domain = function(x) { - if (!arguments.length) return domain; - domain = x.map(Number); - return rescale(); - }; - - scale.range = function(x) { - if (!arguments.length) return range; - range = x; - return rescale(); - }; - - scale.rangeRound = function(x) { - return scale.range(x).interpolate(d3.interpolateRound); - }; - - scale.clamp = function(x) { - if (!arguments.length) return clamp; - clamp = x; - return rescale(); - }; - - scale.interpolate = function(x) { - if (!arguments.length) return interpolate; - interpolate = x; - return rescale(); - }; - - scale.ticks = function(m) { - return d3_scale_linearTicks(domain, m); - }; - - scale.tickFormat = function(m) { - return d3_scale_linearTickFormat(domain, m); - }; - - scale.nice = function() { - d3_scale_nice(domain, d3_scale_linearNice); - return rescale(); - }; - - scale.copy = function() { - return d3_scale_linear(domain, range, interpolate, clamp); - }; - - return rescale(); -}; - -function d3_scale_linearRebind(scale, linear) { - return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp"); -} - -function d3_scale_linearNice(dx) { - dx = Math.pow(10, Math.round(Math.log(dx) / Math.LN10) - 1); - return { - floor: function(x) { return Math.floor(x / dx) * dx; }, - ceil: function(x) { return Math.ceil(x / dx) * dx; } - }; -} - -// TODO Dates? Ugh. -function d3_scale_linearTickRange(domain, m) { - var extent = d3_scaleExtent(domain), - span = extent[1] - extent[0], - step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), - err = m / span * step; - - // Filter ticks to get closer to the desired count. - if (err <= .15) step *= 10; - else if (err <= .35) step *= 5; - else if (err <= .75) step *= 2; - - // Round start and stop values to step interval. - extent[0] = Math.ceil(extent[0] / step) * step; - extent[1] = Math.floor(extent[1] / step) * step + step * .5; // inclusive - extent[2] = step; - return extent; -} - -function d3_scale_linearTicks(domain, m) { - return d3.range.apply(d3, d3_scale_linearTickRange(domain, m)); -} - -function d3_scale_linearTickFormat(domain, m) { - return d3.format(",." + Math.max(0, -Math.floor(Math.log(d3_scale_linearTickRange(domain, m)[2]) / Math.LN10 + .01)) + "f"); -} -function d3_scale_bilinear(domain, range, uninterpolate, interpolate) { - var u = uninterpolate(domain[0], domain[1]), - i = interpolate(range[0], range[1]); - return function(x) { - return i(u(x)); - }; -} -function d3_scale_polylinear(domain, range, uninterpolate, interpolate) { - var u = [], - i = [], - j = 0, - n = domain.length; - - while (++j < n) { - u.push(uninterpolate(domain[j - 1], domain[j])); - i.push(interpolate(range[j - 1], range[j])); - } - - return function(x) { - var j = d3.bisect(domain, x, 1, domain.length - 1) - 1; - return i[j](u[j](x)); - }; -} -d3.scale.log = function() { - return d3_scale_log(d3.scale.linear(), d3_scale_logp); -}; - -function d3_scale_log(linear, log) { - var pow = log.pow; - - function scale(x) { - return linear(log(x)); - } - - scale.invert = function(x) { - return pow(linear.invert(x)); - }; - - scale.domain = function(x) { - if (!arguments.length) return linear.domain().map(pow); - log = x[0] < 0 ? d3_scale_logn : d3_scale_logp; - pow = log.pow; - linear.domain(x.map(log)); - return scale; - }; - - scale.nice = function() { - linear.domain(d3_scale_nice(linear.domain(), d3_scale_niceDefault)); - return scale; - }; - - scale.ticks = function() { - var extent = d3_scaleExtent(linear.domain()), - ticks = []; - if (extent.every(isFinite)) { - var i = Math.floor(extent[0]), - j = Math.ceil(extent[1]), - u = pow(extent[0]), - v = pow(extent[1]); - if (log === d3_scale_logn) { - ticks.push(pow(i)); - for (; i++ < j;) for (var k = 9; k > 0; k--) ticks.push(pow(i) * k); - } else { - for (; i < j; i++) for (var k = 1; k < 10; k++) ticks.push(pow(i) * k); - ticks.push(pow(i)); - } - for (i = 0; ticks[i] < u; i++) {} // strip small values - for (j = ticks.length; ticks[j - 1] > v; j--) {} // strip big values - ticks = ticks.slice(i, j); - } - return ticks; - }; - - scale.tickFormat = function(n, format) { - if (arguments.length < 2) format = d3_scale_logFormat; - if (arguments.length < 1) return format; - var k = n / scale.ticks().length, - f = log === d3_scale_logn ? (e = -1e-12, Math.floor) : (e = 1e-12, Math.ceil), - e; - return function(d) { - return d / pow(f(log(d) + e)) < k ? format(d) : ""; - }; - }; - - scale.copy = function() { - return d3_scale_log(linear.copy(), log); - }; - - return d3_scale_linearRebind(scale, linear); -}; - -var d3_scale_logFormat = d3.format(".0e"); - -function d3_scale_logp(x) { - return Math.log(x) / Math.LN10; -} - -function d3_scale_logn(x) { - return -Math.log(-x) / Math.LN10; -} - -d3_scale_logp.pow = function(x) { - return Math.pow(10, x); -}; - -d3_scale_logn.pow = function(x) { - return -Math.pow(10, -x); -}; -d3.scale.pow = function() { - return d3_scale_pow(d3.scale.linear(), 1); -}; - -function d3_scale_pow(linear, exponent) { - var powp = d3_scale_powPow(exponent), - powb = d3_scale_powPow(1 / exponent); - - function scale(x) { - return linear(powp(x)); - } - - scale.invert = function(x) { - return powb(linear.invert(x)); - }; - - scale.domain = function(x) { - if (!arguments.length) return linear.domain().map(powb); - linear.domain(x.map(powp)); - return scale; - }; - - scale.ticks = function(m) { - return d3_scale_linearTicks(scale.domain(), m); - }; - - scale.tickFormat = function(m) { - return d3_scale_linearTickFormat(scale.domain(), m); - }; - - scale.nice = function() { - return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice)); - }; - - scale.exponent = function(x) { - if (!arguments.length) return exponent; - var domain = scale.domain(); - powp = d3_scale_powPow(exponent = x); - powb = d3_scale_powPow(1 / exponent); - return scale.domain(domain); - }; - - scale.copy = function() { - return d3_scale_pow(linear.copy(), exponent); - }; - - return d3_scale_linearRebind(scale, linear); -}; - -function d3_scale_powPow(e) { - return function(x) { - return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e); - }; -} -d3.scale.sqrt = function() { - return d3.scale.pow().exponent(.5); -}; -d3.scale.ordinal = function() { - return d3_scale_ordinal([], {t: "range", x: []}); -}; - -function d3_scale_ordinal(domain, ranger) { - var index, - range, - rangeBand; - - function scale(x) { - return range[((index[x] || (index[x] = domain.push(x))) - 1) % range.length]; - } - - function steps(start, step) { - return d3.range(domain.length).map(function(i) { return start + step * i; }); - } - - scale.domain = function(x) { - if (!arguments.length) return domain; - domain = []; - index = {}; - var i = -1, n = x.length, xi; - while (++i < n) if (!index[xi = x[i]]) index[xi] = domain.push(xi); - return scale[ranger.t](ranger.x, ranger.p); - }; - - scale.range = function(x) { - if (!arguments.length) return range; - range = x; - rangeBand = 0; - ranger = {t: "range", x: x}; - return scale; - }; - - scale.rangePoints = function(x, padding) { - if (arguments.length < 2) padding = 0; - var start = x[0], - stop = x[1], - step = (stop - start) / (domain.length - 1 + padding); - range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step); - rangeBand = 0; - ranger = {t: "rangePoints", x: x, p: padding}; - return scale; - }; - - scale.rangeBands = function(x, padding) { - if (arguments.length < 2) padding = 0; - var start = x[0], - stop = x[1], - step = (stop - start) / (domain.length + padding); - range = steps(start + step * padding, step); - rangeBand = step * (1 - padding); - ranger = {t: "rangeBands", x: x, p: padding}; - return scale; - }; - - scale.rangeRoundBands = function(x, padding) { - if (arguments.length < 2) padding = 0; - var start = x[0], - stop = x[1], - step = Math.floor((stop - start) / (domain.length + padding)); - range = steps(start + Math.round((stop - start - (domain.length - padding) * step) / 2), step); - rangeBand = Math.round(step * (1 - padding)); - ranger = {t: "rangeRoundBands", x: x, p: padding}; - return scale; - }; - - scale.rangeBand = function() { - return rangeBand; - }; - - scale.rangeExtent = function() { - return ranger.x; - }; - - scale.copy = function() { - return d3_scale_ordinal(domain, ranger); - }; - - return scale.domain(domain); -}; -/* - * This product includes color specifications and designs developed by Cynthia - * Brewer (http://colorbrewer.org/). See lib/colorbrewer for more information. - */ - -d3.scale.category10 = function() { - return d3.scale.ordinal().range(d3_category10); -}; - -d3.scale.category20 = function() { - return d3.scale.ordinal().range(d3_category20); -}; - -d3.scale.category20b = function() { - return d3.scale.ordinal().range(d3_category20b); -}; - -d3.scale.category20c = function() { - return d3.scale.ordinal().range(d3_category20c); -}; - -var d3_category10 = [ - "#1f77b4", "#ff7f0e", "#2ca02c", "#d62728", "#9467bd", - "#8c564b", "#e377c2", "#7f7f7f", "#bcbd22", "#17becf" -]; - -var d3_category20 = [ - "#1f77b4", "#aec7e8", - "#ff7f0e", "#ffbb78", - "#2ca02c", "#98df8a", - "#d62728", "#ff9896", - "#9467bd", "#c5b0d5", - "#8c564b", "#c49c94", - "#e377c2", "#f7b6d2", - "#7f7f7f", "#c7c7c7", - "#bcbd22", "#dbdb8d", - "#17becf", "#9edae5" -]; - -var d3_category20b = [ - "#393b79", "#5254a3", "#6b6ecf", "#9c9ede", - "#637939", "#8ca252", "#b5cf6b", "#cedb9c", - "#8c6d31", "#bd9e39", "#e7ba52", "#e7cb94", - "#843c39", "#ad494a", "#d6616b", "#e7969c", - "#7b4173", "#a55194", "#ce6dbd", "#de9ed6" -]; - -var d3_category20c = [ - "#3182bd", "#6baed6", "#9ecae1", "#c6dbef", - "#e6550d", "#fd8d3c", "#fdae6b", "#fdd0a2", - "#31a354", "#74c476", "#a1d99b", "#c7e9c0", - "#756bb1", "#9e9ac8", "#bcbddc", "#dadaeb", - "#636363", "#969696", "#bdbdbd", "#d9d9d9" -]; -d3.scale.quantile = function() { - return d3_scale_quantile([], []); -}; - -function d3_scale_quantile(domain, range) { - var thresholds; - - function rescale() { - var k = 0, - n = domain.length, - q = range.length; - thresholds = []; - while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q); - return scale; - } - - function scale(x) { - if (isNaN(x = +x)) return NaN; - return range[d3.bisect(thresholds, x)]; - } - - scale.domain = function(x) { - if (!arguments.length) return domain; - domain = x.filter(function(d) { return !isNaN(d); }).sort(d3.ascending); - return rescale(); - }; - - scale.range = function(x) { - if (!arguments.length) return range; - range = x; - return rescale(); - }; - - scale.quantiles = function() { - return thresholds; - }; - - scale.copy = function() { - return d3_scale_quantile(domain, range); // copy on write! - }; - - return rescale(); -}; -d3.scale.quantize = function() { - return d3_scale_quantize(0, 1, [0, 1]); -}; - -function d3_scale_quantize(x0, x1, range) { - var kx, i; - - function scale(x) { - return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))]; - } - - function rescale() { - kx = range.length / (x1 - x0); - i = range.length - 1; - return scale; - } - - scale.domain = function(x) { - if (!arguments.length) return [x0, x1]; - x0 = +x[0]; - x1 = +x[x.length - 1]; - return rescale(); - }; - - scale.range = function(x) { - if (!arguments.length) return range; - range = x; - return rescale(); - }; - - scale.copy = function() { - return d3_scale_quantize(x0, x1, range); // copy on write - }; - - return rescale(); -}; -d3.svg = {}; -d3.svg.arc = function() { - var innerRadius = d3_svg_arcInnerRadius, - outerRadius = d3_svg_arcOuterRadius, - startAngle = d3_svg_arcStartAngle, - endAngle = d3_svg_arcEndAngle; - - function arc() { - var r0 = innerRadius.apply(this, arguments), - r1 = outerRadius.apply(this, arguments), - a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset, - a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset, - da = (a1 < a0 && (da = a0, a0 = a1, a1 = da), a1 - a0), - df = da < Math.PI ? "0" : "1", - c0 = Math.cos(a0), - s0 = Math.sin(a0), - c1 = Math.cos(a1), - s1 = Math.sin(a1); - return da >= d3_svg_arcMax - ? (r0 - ? "M0," + r1 - + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1) - + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 - + "M0," + r0 - + "A" + r0 + "," + r0 + " 0 1,0 0," + (-r0) - + "A" + r0 + "," + r0 + " 0 1,0 0," + r0 - + "Z" - : "M0," + r1 - + "A" + r1 + "," + r1 + " 0 1,1 0," + (-r1) - + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 - + "Z") - : (r0 - ? "M" + r1 * c0 + "," + r1 * s0 - + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 - + "L" + r0 * c1 + "," + r0 * s1 - + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0 - + "Z" - : "M" + r1 * c0 + "," + r1 * s0 - + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 - + "L0,0" - + "Z"); - } - - arc.innerRadius = function(v) { - if (!arguments.length) return innerRadius; - innerRadius = d3.functor(v); - return arc; - }; - - arc.outerRadius = function(v) { - if (!arguments.length) return outerRadius; - outerRadius = d3.functor(v); - return arc; - }; - - arc.startAngle = function(v) { - if (!arguments.length) return startAngle; - startAngle = d3.functor(v); - return arc; - }; - - arc.endAngle = function(v) { - if (!arguments.length) return endAngle; - endAngle = d3.functor(v); - return arc; - }; - - arc.centroid = function() { - var r = (innerRadius.apply(this, arguments) - + outerRadius.apply(this, arguments)) / 2, - a = (startAngle.apply(this, arguments) - + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset; - return [Math.cos(a) * r, Math.sin(a) * r]; - }; - - return arc; -}; - -var d3_svg_arcOffset = -Math.PI / 2, - d3_svg_arcMax = 2 * Math.PI - 1e-6; - -function d3_svg_arcInnerRadius(d) { - return d.innerRadius; -} - -function d3_svg_arcOuterRadius(d) { - return d.outerRadius; -} - -function d3_svg_arcStartAngle(d) { - return d.startAngle; -} - -function d3_svg_arcEndAngle(d) { - return d.endAngle; -} -function d3_svg_line(projection) { - var x = d3_svg_lineX, - y = d3_svg_lineY, - interpolate = "linear", - interpolator = d3_svg_lineInterpolators[interpolate], - tension = .7; - - function line(d) { - return d.length < 1 ? null : "M" + interpolator(projection(d3_svg_linePoints(this, d, x, y)), tension); - } - - line.x = function(v) { - if (!arguments.length) return x; - x = v; - return line; - }; - - line.y = function(v) { - if (!arguments.length) return y; - y = v; - return line; - }; - - line.interpolate = function(v) { - if (!arguments.length) return interpolate; - interpolator = d3_svg_lineInterpolators[interpolate = v]; - return line; - }; - - line.tension = function(v) { - if (!arguments.length) return tension; - tension = v; - return line; - }; - - return line; -} - -d3.svg.line = function() { - return d3_svg_line(Object); -}; - -// Converts the specified array of data into an array of points -// (x-y tuples), by evaluating the specified `x` and `y` functions on each -// data point. The `this` context of the evaluated functions is the specified -// "self" object; each function is passed the current datum and index. -function d3_svg_linePoints(self, d, x, y) { - var points = [], - i = -1, - n = d.length, - fx = typeof x === "function", - fy = typeof y === "function", - value; - if (fx && fy) { - while (++i < n) points.push([ - x.call(self, value = d[i], i), - y.call(self, value, i) - ]); - } else if (fx) { - while (++i < n) points.push([x.call(self, d[i], i), y]); - } else if (fy) { - while (++i < n) points.push([x, y.call(self, d[i], i)]); - } else { - while (++i < n) points.push([x, y]); - } - return points; -} - -// The default `x` property, which references d[0]. -function d3_svg_lineX(d) { - return d[0]; -} - -// The default `y` property, which references d[1]. -function d3_svg_lineY(d) { - return d[1]; -} - -// The various interpolators supported by the `line` class. -var d3_svg_lineInterpolators = { - "linear": d3_svg_lineLinear, - "step-before": d3_svg_lineStepBefore, - "step-after": d3_svg_lineStepAfter, - "basis": d3_svg_lineBasis, - "basis-open": d3_svg_lineBasisOpen, - "basis-closed": d3_svg_lineBasisClosed, - "bundle": d3_svg_lineBundle, - "cardinal": d3_svg_lineCardinal, - "cardinal-open": d3_svg_lineCardinalOpen, - "cardinal-closed": d3_svg_lineCardinalClosed, - "monotone": d3_svg_lineMonotone -}; - -// Linear interpolation; generates "L" commands. -function d3_svg_lineLinear(points) { - var i = 0, - n = points.length, - p = points[0], - path = [p[0], ",", p[1]]; - while (++i < n) path.push("L", (p = points[i])[0], ",", p[1]); - return path.join(""); -} - -// Step interpolation; generates "H" and "V" commands. -function d3_svg_lineStepBefore(points) { - var i = 0, - n = points.length, - p = points[0], - path = [p[0], ",", p[1]]; - while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]); - return path.join(""); -} - -// Step interpolation; generates "H" and "V" commands. -function d3_svg_lineStepAfter(points) { - var i = 0, - n = points.length, - p = points[0], - path = [p[0], ",", p[1]]; - while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]); - return path.join(""); -} - -// Open cardinal spline interpolation; generates "C" commands. -function d3_svg_lineCardinalOpen(points, tension) { - return points.length < 4 - ? d3_svg_lineLinear(points) - : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1), - d3_svg_lineCardinalTangents(points, tension)); -} - -// Closed cardinal spline interpolation; generates "C" commands. -function d3_svg_lineCardinalClosed(points, tension) { - return points.length < 3 - ? d3_svg_lineLinear(points) - : points[0] + d3_svg_lineHermite((points.push(points[0]), points), - d3_svg_lineCardinalTangents([points[points.length - 2]] - .concat(points, [points[1]]), tension)); -} - -// Cardinal spline interpolation; generates "C" commands. -function d3_svg_lineCardinal(points, tension, closed) { - return points.length < 3 - ? d3_svg_lineLinear(points) - : points[0] + d3_svg_lineHermite(points, - d3_svg_lineCardinalTangents(points, tension)); -} - -// Hermite spline construction; generates "C" commands. -function d3_svg_lineHermite(points, tangents) { - if (tangents.length < 1 - || (points.length != tangents.length - && points.length != tangents.length + 2)) { - return d3_svg_lineLinear(points); - } - - var quad = points.length != tangents.length, - path = "", - p0 = points[0], - p = points[1], - t0 = tangents[0], - t = t0, - pi = 1; - - if (quad) { - path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) - + "," + p[0] + "," + p[1]; - p0 = points[1]; - pi = 2; - } - - if (tangents.length > 1) { - t = tangents[1]; - p = points[pi]; - pi++; - path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) - + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) - + "," + p[0] + "," + p[1]; - for (var i = 2; i < tangents.length; i++, pi++) { - p = points[pi]; - t = tangents[i]; - path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) - + "," + p[0] + "," + p[1]; - } - } - - if (quad) { - var lp = points[pi]; - path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) - + "," + lp[0] + "," + lp[1]; - } - - return path; -} - -// Generates tangents for a cardinal spline. -function d3_svg_lineCardinalTangents(points, tension) { - var tangents = [], - a = (1 - tension) / 2, - p0, - p1 = points[0], - p2 = points[1], - i = 1, - n = points.length; - while (++i < n) { - p0 = p1; - p1 = p2; - p2 = points[i]; - tangents.push([a * (p2[0] - p0[0]), a * (p2[1] - p0[1])]); - } - return tangents; -} - -// B-spline interpolation; generates "C" commands. -function d3_svg_lineBasis(points) { - if (points.length < 3) return d3_svg_lineLinear(points); - var i = 1, - n = points.length, - pi = points[0], - x0 = pi[0], - y0 = pi[1], - px = [x0, x0, x0, (pi = points[1])[0]], - py = [y0, y0, y0, pi[1]], - path = [x0, ",", y0]; - d3_svg_lineBasisBezier(path, px, py); - while (++i < n) { - pi = points[i]; - px.shift(); px.push(pi[0]); - py.shift(); py.push(pi[1]); - d3_svg_lineBasisBezier(path, px, py); - } - i = -1; - while (++i < 2) { - px.shift(); px.push(pi[0]); - py.shift(); py.push(pi[1]); - d3_svg_lineBasisBezier(path, px, py); - } - return path.join(""); -} - -// Open B-spline interpolation; generates "C" commands. -function d3_svg_lineBasisOpen(points) { - if (points.length < 4) return d3_svg_lineLinear(points); - var path = [], - i = -1, - n = points.length, - pi, - px = [0], - py = [0]; - while (++i < 3) { - pi = points[i]; - px.push(pi[0]); - py.push(pi[1]); - } - path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) - + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py)); - --i; while (++i < n) { - pi = points[i]; - px.shift(); px.push(pi[0]); - py.shift(); py.push(pi[1]); - d3_svg_lineBasisBezier(path, px, py); - } - return path.join(""); -} - -// Closed B-spline interpolation; generates "C" commands. -function d3_svg_lineBasisClosed(points) { - var path, - i = -1, - n = points.length, - m = n + 4, - pi, - px = [], - py = []; - while (++i < 4) { - pi = points[i % n]; - px.push(pi[0]); - py.push(pi[1]); - } - path = [ - d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", - d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) - ]; - --i; while (++i < m) { - pi = points[i % n]; - px.shift(); px.push(pi[0]); - py.shift(); py.push(pi[1]); - d3_svg_lineBasisBezier(path, px, py); - } - return path.join(""); -} - -function d3_svg_lineBundle(points, tension) { - var n = points.length - 1, - x0 = points[0][0], - y0 = points[0][1], - dx = points[n][0] - x0, - dy = points[n][1] - y0, - i = -1, - p, - t; - while (++i <= n) { - p = points[i]; - t = i / n; - p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx); - p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy); - } - return d3_svg_lineBasis(points); -} - -// Returns the dot product of the given four-element vectors. -function d3_svg_lineDot4(a, b) { - return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3]; -} - -// Matrix to transform basis (b-spline) control points to bezier -// control points. Derived from FvD 11.2.8. -var d3_svg_lineBasisBezier1 = [0, 2/3, 1/3, 0], - d3_svg_lineBasisBezier2 = [0, 1/3, 2/3, 0], - d3_svg_lineBasisBezier3 = [0, 1/6, 2/3, 1/6]; - -// Pushes a "C" Bézier curve onto the specified path array, given the -// two specified four-element arrays which define the control points. -function d3_svg_lineBasisBezier(path, x, y) { - path.push( - "C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), - ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), - ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), - ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), - ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), - ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y)); -} - -// Computes the slope from points p0 to p1. -function d3_svg_lineSlope(p0, p1) { - return (p1[1] - p0[1]) / (p1[0] - p0[0]); -} - -// Compute three-point differences for the given points. -// http://en.wikipedia.org/wiki/Cubic_Hermite_spline#Finite_difference -function d3_svg_lineFiniteDifferences(points) { - var i = 0, - j = points.length - 1, - m = [], - p0 = points[0], - p1 = points[1], - d = m[0] = d3_svg_lineSlope(p0, p1); - while (++i < j) { - m[i] = d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1])); - } - m[i] = d; - return m; -} - -// Interpolates the given points using Fritsch-Carlson Monotone cubic Hermite -// interpolation. Returns an array of tangent vectors. For details, see -// http://en.wikipedia.org/wiki/Monotone_cubic_interpolation -function d3_svg_lineMonotoneTangents(points) { - var tangents = [], - d, - a, - b, - s, - m = d3_svg_lineFiniteDifferences(points), - i = -1, - j = points.length - 1; - - // The first two steps are done by computing finite-differences: - // 1. Compute the slopes of the secant lines between successive points. - // 2. Initialize the tangents at every point as the average of the secants. - - // Then, for each segment… - while (++i < j) { - d = d3_svg_lineSlope(points[i], points[i + 1]); - - // 3. If two successive yk = y{k + 1} are equal (i.e., d is zero), then set - // mk = m{k + 1} = 0 as the spline connecting these points must be flat to - // preserve monotonicity. Ignore step 4 and 5 for those k. - - if (Math.abs(d) < 1e-6) { - m[i] = m[i + 1] = 0; - } else { - // 4. Let ak = mk / dk and bk = m{k + 1} / dk. - a = m[i] / d; - b = m[i + 1] / d; - - // 5. Prevent overshoot and ensure monotonicity by restricting the - // magnitude of vector <ak, bk> to a circle of radius 3. - s = a * a + b * b; - if (s > 9) { - s = d * 3 / Math.sqrt(s); - m[i] = s * a; - m[i + 1] = s * b; - } - } - } - - // Compute the normalized tangent vector from the slopes. Note that if x is - // not monotonic, it's possible that the slope will be infinite, so we protect - // against NaN by setting the coordinate to zero. - i = -1; while (++i <= j) { - s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) - / (6 * (1 + m[i] * m[i])); - tangents.push([s || 0, m[i] * s || 0]); - } - - return tangents; -} - -function d3_svg_lineMonotone(points) { - return points.length < 3 - ? d3_svg_lineLinear(points) - : points[0] + - d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points)); -} -d3.svg.line.radial = function() { - var line = d3_svg_line(d3_svg_lineRadial); - line.radius = line.x, delete line.x; - line.angle = line.y, delete line.y; - return line; -}; - -function d3_svg_lineRadial(points) { - var point, - i = -1, - n = points.length, - r, - a; - while (++i < n) { - point = points[i]; - r = point[0]; - a = point[1] + d3_svg_arcOffset; - point[0] = r * Math.cos(a); - point[1] = r * Math.sin(a); - } - return points; -} -function d3_svg_area(projection) { - var x0 = d3_svg_lineX, - x1 = d3_svg_lineX, - y0 = 0, - y1 = d3_svg_lineY, - interpolate, - i0, - i1, - tension = .7; - - function area(d) { - if (d.length < 1) return null; - var points0 = d3_svg_linePoints(this, d, x0, y0), - points1 = d3_svg_linePoints(this, d, x0 === x1 ? d3_svg_areaX(points0) : x1, y0 === y1 ? d3_svg_areaY(points0) : y1); - return "M" + i0(projection(points1), tension) - + "L" + i1(projection(points0.reverse()), tension) - + "Z"; - } - - area.x = function(x) { - if (!arguments.length) return x1; - x0 = x1 = x; - return area; - }; - - area.x0 = function(x) { - if (!arguments.length) return x0; - x0 = x; - return area; - }; - - area.x1 = function(x) { - if (!arguments.length) return x1; - x1 = x; - return area; - }; - - area.y = function(y) { - if (!arguments.length) return y1; - y0 = y1 = y; - return area; - }; - - area.y0 = function(y) { - if (!arguments.length) return y0; - y0 = y; - return area; - }; - - area.y1 = function(y) { - if (!arguments.length) return y1; - y1 = y; - return area; - }; - - area.interpolate = function(x) { - if (!arguments.length) return interpolate; - i0 = d3_svg_lineInterpolators[interpolate = x]; - i1 = i0.reverse || i0; - return area; - }; - - area.tension = function(x) { - if (!arguments.length) return tension; - tension = x; - return area; - }; - - return area.interpolate("linear"); -} - -d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter; -d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore; - -d3.svg.area = function() { - return d3_svg_area(Object); -}; - -function d3_svg_areaX(points) { - return function(d, i) { - return points[i][0]; - }; -} - -function d3_svg_areaY(points) { - return function(d, i) { - return points[i][1]; - }; -} -d3.svg.area.radial = function() { - var area = d3_svg_area(d3_svg_lineRadial); - area.radius = area.x, delete area.x; - area.innerRadius = area.x0, delete area.x0; - area.outerRadius = area.x1, delete area.x1; - area.angle = area.y, delete area.y; - area.startAngle = area.y0, delete area.y0; - area.endAngle = area.y1, delete area.y1; - return area; -}; -d3.svg.chord = function() { - var source = d3_svg_chordSource, - target = d3_svg_chordTarget, - radius = d3_svg_chordRadius, - startAngle = d3_svg_arcStartAngle, - endAngle = d3_svg_arcEndAngle; - - // TODO Allow control point to be customized. - - function chord(d, i) { - var s = subgroup(this, source, d, i), - t = subgroup(this, target, d, i); - return "M" + s.p0 - + arc(s.r, s.p1) + (equals(s, t) - ? curve(s.r, s.p1, s.r, s.p0) - : curve(s.r, s.p1, t.r, t.p0) - + arc(t.r, t.p1) - + curve(t.r, t.p1, s.r, s.p0)) - + "Z"; - } - - function subgroup(self, f, d, i) { - var subgroup = f.call(self, d, i), - r = radius.call(self, subgroup, i), - a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset, - a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset; - return { - r: r, - a0: a0, - a1: a1, - p0: [r * Math.cos(a0), r * Math.sin(a0)], - p1: [r * Math.cos(a1), r * Math.sin(a1)] - }; - } - - function equals(a, b) { - return a.a0 == b.a0 && a.a1 == b.a1; - } - - function arc(r, p) { - return "A" + r + "," + r + " 0 0,1 " + p; - } - - function curve(r0, p0, r1, p1) { - return "Q 0,0 " + p1; - } - - chord.radius = function(v) { - if (!arguments.length) return radius; - radius = d3.functor(v); - return chord; - }; - - chord.source = function(v) { - if (!arguments.length) return source; - source = d3.functor(v); - return chord; - }; - - chord.target = function(v) { - if (!arguments.length) return target; - target = d3.functor(v); - return chord; - }; - - chord.startAngle = function(v) { - if (!arguments.length) return startAngle; - startAngle = d3.functor(v); - return chord; - }; - - chord.endAngle = function(v) { - if (!arguments.length) return endAngle; - endAngle = d3.functor(v); - return chord; - }; - - return chord; -}; - -function d3_svg_chordSource(d) { - return d.source; -} - -function d3_svg_chordTarget(d) { - return d.target; -} - -function d3_svg_chordRadius(d) { - return d.radius; -} - -function d3_svg_chordStartAngle(d) { - return d.startAngle; -} - -function d3_svg_chordEndAngle(d) { - return d.endAngle; -} -d3.svg.diagonal = function() { - var source = d3_svg_chordSource, - target = d3_svg_chordTarget, - projection = d3_svg_diagonalProjection; - - function diagonal(d, i) { - var p0 = source.call(this, d, i), - p3 = target.call(this, d, i), - m = (p0.y + p3.y) / 2, - p = [p0, {x: p0.x, y: m}, {x: p3.x, y: m}, p3]; - p = p.map(projection); - return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3]; - } - - diagonal.source = function(x) { - if (!arguments.length) return source; - source = d3.functor(x); - return diagonal; - }; - - diagonal.target = function(x) { - if (!arguments.length) return target; - target = d3.functor(x); - return diagonal; - }; - - diagonal.projection = function(x) { - if (!arguments.length) return projection; - projection = x; - return diagonal; - }; - - return diagonal; -}; - -function d3_svg_diagonalProjection(d) { - return [d.x, d.y]; -} -d3.svg.diagonal.radial = function() { - var diagonal = d3.svg.diagonal(), - projection = d3_svg_diagonalProjection, - projection_ = diagonal.projection; - - diagonal.projection = function(x) { - return arguments.length - ? projection_(d3_svg_diagonalRadialProjection(projection = x)) - : projection; - }; - - return diagonal; -}; - -function d3_svg_diagonalRadialProjection(projection) { - return function() { - var d = projection.apply(this, arguments), - r = d[0], - a = d[1] + d3_svg_arcOffset; - return [r * Math.cos(a), r * Math.sin(a)]; - }; -} -d3.svg.mouse = function(container) { - return d3_svg_mousePoint(container, d3.event); -}; - -// https://bugs.webkit.org/show_bug.cgi?id=44083 -var d3_mouse_bug44083 = /WebKit/.test(navigator.userAgent) ? -1 : 0; - -function d3_svg_mousePoint(container, e) { - var point = (container.ownerSVGElement || container).createSVGPoint(); - if ((d3_mouse_bug44083 < 0) && (window.scrollX || window.scrollY)) { - var svg = d3.select(document.body) - .append("svg") - .style("position", "absolute") - .style("top", 0) - .style("left", 0); - var ctm = svg[0][0].getScreenCTM(); - d3_mouse_bug44083 = !(ctm.f || ctm.e); - svg.remove(); - } - if (d3_mouse_bug44083) { - point.x = e.pageX; - point.y = e.pageY; - } else { - point.x = e.clientX; - point.y = e.clientY; - } - point = point.matrixTransform(container.getScreenCTM().inverse()); - return [point.x, point.y]; -}; -d3.svg.touches = function(container, touches) { - if (arguments.length < 2) touches = d3.event.touches; - - return touches ? d3_array(touches).map(function(touch) { - var point = d3_svg_mousePoint(container, touch); - point.identifier = touch.identifier; - return point; - }) : []; -}; -d3.svg.symbol = function() { - var type = d3_svg_symbolType, - size = d3_svg_symbolSize; - - function symbol(d, i) { - return (d3_svg_symbols[type.call(this, d, i)] - || d3_svg_symbols.circle) - (size.call(this, d, i)); - } - - symbol.type = function(x) { - if (!arguments.length) return type; - type = d3.functor(x); - return symbol; - }; - - // size of symbol in square pixels - symbol.size = function(x) { - if (!arguments.length) return size; - size = d3.functor(x); - return symbol; - }; - - return symbol; -}; - -function d3_svg_symbolSize() { - return 64; -} - -function d3_svg_symbolType() { - return "circle"; -} - -// TODO cross-diagonal? -var d3_svg_symbols = { - "circle": function(size) { - var r = Math.sqrt(size / Math.PI); - return "M0," + r - + "A" + r + "," + r + " 0 1,1 0," + (-r) - + "A" + r + "," + r + " 0 1,1 0," + r - + "Z"; - }, - "cross": function(size) { - var r = Math.sqrt(size / 5) / 2; - return "M" + -3 * r + "," + -r - + "H" + -r - + "V" + -3 * r - + "H" + r - + "V" + -r - + "H" + 3 * r - + "V" + r - + "H" + r - + "V" + 3 * r - + "H" + -r - + "V" + r - + "H" + -3 * r - + "Z"; - }, - "diamond": function(size) { - var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), - rx = ry * d3_svg_symbolTan30; - return "M0," + -ry - + "L" + rx + ",0" - + " 0," + ry - + " " + -rx + ",0" - + "Z"; - }, - "square": function(size) { - var r = Math.sqrt(size) / 2; - return "M" + -r + "," + -r - + "L" + r + "," + -r - + " " + r + "," + r - + " " + -r + "," + r - + "Z"; - }, - "triangle-down": function(size) { - var rx = Math.sqrt(size / d3_svg_symbolSqrt3), - ry = rx * d3_svg_symbolSqrt3 / 2; - return "M0," + ry - + "L" + rx +"," + -ry - + " " + -rx + "," + -ry - + "Z"; - }, - "triangle-up": function(size) { - var rx = Math.sqrt(size / d3_svg_symbolSqrt3), - ry = rx * d3_svg_symbolSqrt3 / 2; - return "M0," + -ry - + "L" + rx +"," + ry - + " " + -rx + "," + ry - + "Z"; - } -}; - -d3.svg.symbolTypes = d3.keys(d3_svg_symbols); - -var d3_svg_symbolSqrt3 = Math.sqrt(3), - d3_svg_symbolTan30 = Math.tan(30 * Math.PI / 180); -d3.svg.axis = function() { - var scale = d3.scale.linear(), - orient = "bottom", - tickMajorSize = 6, - tickMinorSize = 6, - tickEndSize = 6, - tickPadding = 3, - tickArguments_ = [10], - tickFormat_, - tickSubdivide = 0; - - function axis(selection) { - selection.each(function(d, i, j) { - var g = d3.select(this); - - // If selection is a transition, create subtransitions. - var transition = selection.delay ? function(o) { - var id = d3_transitionInheritId; - try { - d3_transitionInheritId = selection.id; - return o.transition() - .delay(selection[j][i].delay) - .duration(selection[j][i].duration) - .ease(selection.ease()); - } finally { - d3_transitionInheritId = id; - } - } : Object; - - // Ticks, or domain values for ordinal scales. - var ticks = scale.ticks ? scale.ticks.apply(scale, tickArguments_) : scale.domain(), - tickFormat = tickFormat_ == null ? (scale.tickFormat ? scale.tickFormat.apply(scale, tickArguments_) : String) : tickFormat_; - - // Minor ticks. - var subticks = d3_svg_axisSubdivide(scale, ticks, tickSubdivide), - subtick = g.selectAll(".minor").data(subticks, String), - subtickEnter = subtick.enter().insert("line", "g").attr("class", "tick minor").style("opacity", 1e-6), - subtickExit = transition(subtick.exit()).style("opacity", 1e-6).remove(), - subtickUpdate = transition(subtick).style("opacity", 1); - - // Major ticks. - var tick = g.selectAll("g").data(ticks, String), - tickEnter = tick.enter().insert("g", "path").style("opacity", 1e-6), - tickExit = transition(tick.exit()).style("opacity", 1e-6).remove(), - tickUpdate = transition(tick).style("opacity", 1), - tickTransform; - - // Domain. - var range = d3_scaleRange(scale), - path = g.selectAll(".domain").data([0]), - pathEnter = path.enter().append("path").attr("class", "domain"), - pathUpdate = transition(path); - - // Stash a snapshot of the new scale, and retrieve the old snapshot. - var scale1 = scale.copy(), - scale0 = this.__chart__ || scale1; - this.__chart__ = scale1; - - tickEnter.append("line").attr("class", "tick"); - tickEnter.append("text"); - tickUpdate.select("text").text(tickFormat); - - switch (orient) { - case "bottom": { - tickTransform = d3_svg_axisX; - subtickUpdate.attr("x2", 0).attr("y2", tickMinorSize); - tickUpdate.select("line").attr("x2", 0).attr("y2", tickMajorSize); - tickUpdate.select("text").attr("x", 0).attr("y", Math.max(tickMajorSize, 0) + tickPadding).attr("dy", ".71em").attr("text-anchor", "middle"); - pathUpdate.attr("d", "M" + range[0] + "," + tickEndSize + "V0H" + range[1] + "V" + tickEndSize); - break; - } - case "top": { - tickTransform = d3_svg_axisX; - subtickUpdate.attr("x2", 0).attr("y2", -tickMinorSize); - tickUpdate.select("line").attr("x2", 0).attr("y2", -tickMajorSize); - tickUpdate.select("text").attr("x", 0).attr("y", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("dy", "0em").attr("text-anchor", "middle"); - pathUpdate.attr("d", "M" + range[0] + "," + -tickEndSize + "V0H" + range[1] + "V" + -tickEndSize); - break; - } - case "left": { - tickTransform = d3_svg_axisY; - subtickUpdate.attr("x2", -tickMinorSize).attr("y2", 0); - tickUpdate.select("line").attr("x2", -tickMajorSize).attr("y2", 0); - tickUpdate.select("text").attr("x", -(Math.max(tickMajorSize, 0) + tickPadding)).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "end"); - pathUpdate.attr("d", "M" + -tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + -tickEndSize); - break; - } - case "right": { - tickTransform = d3_svg_axisY; - subtickUpdate.attr("x2", tickMinorSize).attr("y2", 0); - tickUpdate.select("line").attr("x2", tickMajorSize).attr("y2", 0); - tickUpdate.select("text").attr("x", Math.max(tickMajorSize, 0) + tickPadding).attr("y", 0).attr("dy", ".32em").attr("text-anchor", "start"); - pathUpdate.attr("d", "M" + tickEndSize + "," + range[0] + "H0V" + range[1] + "H" + tickEndSize); - break; - } - } - - // For quantitative scales: - // - enter new ticks from the old scale - // - exit old ticks to the new scale - if (scale.ticks) { - tickEnter.call(tickTransform, scale0); - tickUpdate.call(tickTransform, scale1); - tickExit.call(tickTransform, scale1); - subtickEnter.call(tickTransform, scale0); - subtickUpdate.call(tickTransform, scale1); - subtickExit.call(tickTransform, scale1); - } - - // For ordinal scales: - // - any entering ticks are undefined in the old scale - // - any exiting ticks are undefined in the new scale - // Therefore, we only need to transition updating ticks. - else { - var dx = scale1.rangeBand() / 2, x = function(d) { return scale1(d) + dx; }; - tickEnter.call(tickTransform, x); - tickUpdate.call(tickTransform, x); - } - }); - } - - axis.scale = function(x) { - if (!arguments.length) return scale; - scale = x; - return axis; - }; - - axis.orient = function(x) { - if (!arguments.length) return orient; - orient = x; - return axis; - }; - - axis.ticks = function() { - if (!arguments.length) return tickArguments_; - tickArguments_ = arguments; - return axis; - }; - - axis.tickFormat = function(x) { - if (!arguments.length) return tickFormat_; - tickFormat_ = x; - return axis; - }; - - axis.tickSize = function(x, y, z) { - if (!arguments.length) return tickMajorSize; - var n = arguments.length - 1; - tickMajorSize = +x; - tickMinorSize = n > 1 ? +y : tickMajorSize; - tickEndSize = n > 0 ? +arguments[n] : tickMajorSize; - return axis; - }; - - axis.tickPadding = function(x) { - if (!arguments.length) return tickPadding; - tickPadding = +x; - return axis; - }; - - axis.tickSubdivide = function(x) { - if (!arguments.length) return tickSubdivide; - tickSubdivide = +x; - return axis; - }; - - return axis; -}; - -function d3_svg_axisX(selection, x) { - selection.attr("transform", function(d) { return "translate(" + x(d) + ",0)"; }); -} - -function d3_svg_axisY(selection, y) { - selection.attr("transform", function(d) { return "translate(0," + y(d) + ")"; }); -} - -function d3_svg_axisSubdivide(scale, ticks, m) { - subticks = []; - if (m && ticks.length > 1) { - var extent = d3_scaleExtent(scale.domain()), - subticks, - i = -1, - n = ticks.length, - d = (ticks[1] - ticks[0]) / ++m, - j, - v; - while (++i < n) { - for (j = m; --j > 0;) { - if ((v = +ticks[i] - j * d) >= extent[0]) { - subticks.push(v); - } - } - } - for (--i, j = 0; ++j < m && (v = +ticks[i] + j * d) < extent[1];) { - subticks.push(v); - } - } - return subticks; -} -d3.svg.brush = function() { - var event = d3.dispatch("brushstart", "brush", "brushend"), - x, // x-scale, optional - y, // y-scale, optional - extent = [[0, 0], [0, 0]]; // [x0, y0], [x1, y1] - - function brush(g) { - var resizes = x && y ? ["n", "e", "s", "w", "nw", "ne", "se", "sw"] - : x ? ["e", "w"] - : y ? ["n", "s"] - : []; - - g.each(function() { - var g = d3.select(this).on("mousedown.brush", down), - bg = g.selectAll(".background").data([,]), - fg = g.selectAll(".extent").data([,]), - tz = g.selectAll(".resize").data(resizes, String), - e; - - // An invisible, mouseable area for starting a new brush. - bg.enter().append("rect") - .attr("class", "background") - .style("visibility", "hidden") - .style("pointer-events", "all") - .style("cursor", "crosshair"); - - // The visible brush extent; style this as you like! - fg.enter().append("rect") - .attr("class", "extent") - .style("cursor", "move"); - - // More invisible rects for resizing the extent. - tz.enter().append("rect") - .attr("class", function(d) { return "resize " + d; }) - .attr("width", 6) - .attr("height", 6) - .style("visibility", "hidden") - .style("pointer-events", brush.empty() ? "none" : "all") - .style("cursor", function(d) { return d3_svg_brushCursor[d]; }); - - // Remove any superfluous resizers. - tz.exit().remove(); - - // Initialize the background to fill the defined range. - // If the range isn't defined, you can post-process. - if (x) { - e = d3_scaleRange(x); - bg.attr("x", e[0]).attr("width", e[1] - e[0]); - d3_svg_brushRedrawX(g, extent); - } - if (y) { - e = d3_scaleRange(y); - bg.attr("y", e[0]).attr("height", e[1] - e[0]); - d3_svg_brushRedrawY(g, extent); - } - }); - } - - function down() { - var target = d3.select(d3.event.target); - - // Store some global state for the duration of the brush gesture. - d3_svg_brush = brush; - d3_svg_brushTarget = this; - d3_svg_brushExtent = extent; - d3_svg_brushOffset = d3.svg.mouse(d3_svg_brushTarget); - - // If the extent was clicked on, drag rather than brush; - // store the offset between the mouse and extent origin instead. - if (d3_svg_brushDrag = target.classed("extent")) { - d3_svg_brushOffset[0] = extent[0][0] - d3_svg_brushOffset[0]; - d3_svg_brushOffset[1] = extent[0][1] - d3_svg_brushOffset[1]; - } - - // If a resizer was clicked on, record which side is to be resized. - // Also, set the offset to the opposite side. - else if (target.classed("resize")) { - d3_svg_brushResize = d3.event.target.__data__; - d3_svg_brushOffset[0] = extent[+/w$/.test(d3_svg_brushResize)][0]; - d3_svg_brushOffset[1] = extent[+/^n/.test(d3_svg_brushResize)][1]; - } - - // If the ALT key is down when starting a brush, the center is at the mouse. - else if (d3.event.altKey) { - d3_svg_brushCenter = d3_svg_brushOffset.slice(); - } - - // Restrict which dimensions are resized. - d3_svg_brushX = !/^(n|s)$/.test(d3_svg_brushResize) && x; - d3_svg_brushY = !/^(e|w)$/.test(d3_svg_brushResize) && y; - - // Notify listeners. - d3_svg_brushDispatch = dispatcher(this, arguments); - d3_svg_brushDispatch("brushstart"); - d3_svg_brushMove(); - d3_eventCancel(); - } - - function dispatcher(that, argumentz) { - return function(type) { - var e = d3.event; - try { - d3.event = {type: type, target: brush}; - event[type].apply(that, argumentz); - } finally { - d3.event = e; - } - }; - } - - brush.x = function(z) { - if (!arguments.length) return x; - x = z; - return brush; - }; - - brush.y = function(z) { - if (!arguments.length) return y; - y = z; - return brush; - }; - - brush.extent = function(z) { - var x0, x1, y0, y1, t; - - // Invert the pixel extent to data-space. - if (!arguments.length) { - if (x) { - x0 = extent[0][0], x1 = extent[1][0]; - if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1); - if (x1 < x0) t = x0, x0 = x1, x1 = t; - } - if (y) { - y0 = extent[0][1], y1 = extent[1][1]; - if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1); - if (y1 < y0) t = y0, y0 = y1, y1 = t; - } - return x && y ? [[x0, y0], [x1, y1]] : x ? [x0, x1] : y && [y0, y1]; - } - - // Scale the data-space extent to pixels. - if (x) { - x0 = z[0], x1 = z[1]; - if (y) x0 = x0[0], x1 = x1[0]; - if (x.invert) x0 = x(x0), x1 = x(x1); - if (x1 < x0) t = x0, x0 = x1, x1 = t; - extent[0][0] = x0, extent[1][0] = x1; - } - if (y) { - y0 = z[0], y1 = z[1]; - if (x) y0 = y0[1], y1 = y1[1]; - if (y.invert) y0 = y(y0), y1 = y(y1); - if (y1 < y0) t = y0, y0 = y1, y1 = t; - extent[0][1] = y0, extent[1][1] = y1; - } - - return brush; - }; - - brush.clear = function() { - extent[0][0] = - extent[0][1] = - extent[1][0] = - extent[1][1] = 0; - return brush; - }; - - brush.empty = function() { - return (x && extent[0][0] === extent[1][0]) - || (y && extent[0][1] === extent[1][1]); - }; - - d3.select(window) - .on("mousemove.brush", d3_svg_brushMove) - .on("mouseup.brush", d3_svg_brushUp) - .on("keydown.brush", d3_svg_brushKeydown) - .on("keyup.brush", d3_svg_brushKeyup); - - return d3.rebind(brush, event, "on"); -}; - -var d3_svg_brush, - d3_svg_brushDispatch, - d3_svg_brushTarget, - d3_svg_brushX, - d3_svg_brushY, - d3_svg_brushExtent, - d3_svg_brushDrag, - d3_svg_brushResize, - d3_svg_brushCenter, - d3_svg_brushOffset; - -function d3_svg_brushRedrawX(g, extent) { - g.select(".extent").attr("x", extent[0][0]); - g.selectAll(".n,.s,.w,.nw,.sw").attr("x", extent[0][0] - 2); - g.selectAll(".e,.ne,.se").attr("x", extent[1][0] - 3); - g.selectAll(".extent,.n,.s").attr("width", extent[1][0] - extent[0][0]); -} - -function d3_svg_brushRedrawY(g, extent) { - g.select(".extent").attr("y", extent[0][1]); - g.selectAll(".n,.e,.w,.nw,.ne").attr("y", extent[0][1] - 3); - g.selectAll(".s,.se,.sw").attr("y", extent[1][1] - 4); - g.selectAll(".extent,.e,.w").attr("height", extent[1][1] - extent[0][1]); -} - -function d3_svg_brushKeydown() { - if (d3.event.keyCode == 32 && d3_svg_brushTarget && !d3_svg_brushDrag) { - d3_svg_brushCenter = null; - d3_svg_brushOffset[0] -= d3_svg_brushExtent[1][0]; - d3_svg_brushOffset[1] -= d3_svg_brushExtent[1][1]; - d3_svg_brushDrag = 2; - d3_eventCancel(); - } -} - -function d3_svg_brushKeyup() { - if (d3.event.keyCode == 32 && d3_svg_brushDrag == 2) { - d3_svg_brushOffset[0] += d3_svg_brushExtent[1][0]; - d3_svg_brushOffset[1] += d3_svg_brushExtent[1][1]; - d3_svg_brushDrag = 0; - d3_eventCancel(); - } -} - -function d3_svg_brushMove() { - if (d3_svg_brushOffset) { - var mouse = d3.svg.mouse(d3_svg_brushTarget), - g = d3.select(d3_svg_brushTarget); - - if (!d3_svg_brushDrag) { - - // If needed, determine the center from the current extent. - if (d3.event.altKey) { - if (!d3_svg_brushCenter) { - d3_svg_brushCenter = [ - (d3_svg_brushExtent[0][0] + d3_svg_brushExtent[1][0]) / 2, - (d3_svg_brushExtent[0][1] + d3_svg_brushExtent[1][1]) / 2 - ]; - } - - // Update the offset, for when the ALT key is released. - d3_svg_brushOffset[0] = d3_svg_brushExtent[+(mouse[0] < d3_svg_brushCenter[0])][0]; - d3_svg_brushOffset[1] = d3_svg_brushExtent[+(mouse[1] < d3_svg_brushCenter[1])][1]; - } - - // When the ALT key is released, we clear the center. - else d3_svg_brushCenter = null; - } - - // Update the brush extent for each dimension. - if (d3_svg_brushX) { - d3_svg_brushMove1(mouse, d3_svg_brushX, 0); - d3_svg_brushRedrawX(g, d3_svg_brushExtent); - } - if (d3_svg_brushY) { - d3_svg_brushMove1(mouse, d3_svg_brushY, 1); - d3_svg_brushRedrawY(g, d3_svg_brushExtent); - } - - // Notify listeners. - d3_svg_brushDispatch("brush"); - } -} - -function d3_svg_brushMove1(mouse, scale, i) { - var range = d3_scaleRange(scale), - r0 = range[0], - r1 = range[1], - offset = d3_svg_brushOffset[i], - size = d3_svg_brushExtent[1][i] - d3_svg_brushExtent[0][i], - min, - max; - - // When dragging, reduce the range by the extent size and offset. - if (d3_svg_brushDrag) { - r0 -= offset; - r1 -= size + offset; - } - - // Clamp the mouse so that the extent fits within the range extent. - min = Math.max(r0, Math.min(r1, mouse[i])); - - // Compute the new extent bounds. - if (d3_svg_brushDrag) { - max = (min += offset) + size; - } else { - - // If the ALT key is pressed, then preserve the center of the extent. - if (d3_svg_brushCenter) offset = Math.max(r0, Math.min(r1, 2 * d3_svg_brushCenter[i] - min)); - - // Compute the min and max of the offset and mouse. - if (offset < min) { - max = min; - min = offset; - } else { - max = offset; - } - } - - // Update the stored bounds. - d3_svg_brushExtent[0][i] = min; - d3_svg_brushExtent[1][i] = max; -} - -function d3_svg_brushUp() { - if (d3_svg_brushOffset) { - d3_svg_brushMove(); - d3.select(d3_svg_brushTarget).selectAll(".resize").style("pointer-events", d3_svg_brush.empty() ? "none" : "all"); - d3_svg_brushDispatch("brushend"); - d3_svg_brush = - d3_svg_brushDispatch = - d3_svg_brushTarget = - d3_svg_brushX = - d3_svg_brushY = - d3_svg_brushExtent = - d3_svg_brushDrag = - d3_svg_brushResize = - d3_svg_brushCenter = - d3_svg_brushOffset = null; - d3_eventCancel(); - } -} - -var d3_svg_brushCursor = { - n: "ns-resize", - e: "ew-resize", - s: "ns-resize", - w: "ew-resize", - nw: "nwse-resize", - ne: "nesw-resize", - se: "nwse-resize", - sw: "nesw-resize" -}; -d3.behavior = {}; -// TODO Track touch points by identifier. - -d3.behavior.drag = function() { - var event = d3.dispatch("drag", "dragstart", "dragend"), - origin = null; - - function drag() { - this - .on("mousedown.drag", mousedown) - .on("touchstart.drag", mousedown); - - d3.select(window) - .on("mousemove.drag", d3_behavior_dragMove) - .on("touchmove.drag", d3_behavior_dragMove) - .on("mouseup.drag", d3_behavior_dragUp, true) - .on("touchend.drag", d3_behavior_dragUp, true) - .on("click.drag", d3_behavior_dragClick, true); - } - - // snapshot the local context for subsequent dispatch - function start() { - d3_behavior_dragEvent = event; - d3_behavior_dragEventTarget = d3.event.target; - d3_behavior_dragTarget = this; - d3_behavior_dragArguments = arguments; - d3_behavior_dragOrigin = d3_behavior_dragPoint(); - if (origin) { - d3_behavior_dragOffset = origin.apply(d3_behavior_dragTarget, d3_behavior_dragArguments); - d3_behavior_dragOffset = [d3_behavior_dragOffset.x - d3_behavior_dragOrigin[0], d3_behavior_dragOffset.y - d3_behavior_dragOrigin[1]]; - } else { - d3_behavior_dragOffset = [0, 0]; - } - d3_behavior_dragMoved = 0; - } - - function mousedown() { - start.apply(this, arguments); - d3_behavior_dragDispatch("dragstart"); - } - - drag.origin = function(x) { - if (!arguments.length) return origin; - origin = x; - return drag; - }; - - return d3.rebind(drag, event, "on"); -}; - -var d3_behavior_dragEvent, - d3_behavior_dragEventTarget, - d3_behavior_dragTarget, - d3_behavior_dragArguments, - d3_behavior_dragOffset, - d3_behavior_dragOrigin, - d3_behavior_dragMoved; - -function d3_behavior_dragDispatch(type) { - var p = d3_behavior_dragPoint(), - o = d3.event, - e = d3.event = {type: type}; - - if (p) { - e.x = p[0] + d3_behavior_dragOffset[0]; - e.y = p[1] + d3_behavior_dragOffset[1]; - e.dx = p[0] - d3_behavior_dragOrigin[0]; - e.dy = p[1] - d3_behavior_dragOrigin[1]; - d3_behavior_dragMoved |= e.dx | e.dy; - d3_behavior_dragOrigin = p; - } - - try { - d3_behavior_dragEvent[type].apply(d3_behavior_dragTarget, d3_behavior_dragArguments); - } finally { - d3.event = o; - } - - o.stopPropagation(); - o.preventDefault(); -} - -function d3_behavior_dragPoint() { - var p = d3_behavior_dragTarget.parentNode, - t = d3.event.changedTouches; - return p && (t - ? d3.svg.touches(p, t)[0] - : d3.svg.mouse(p)); -} - -function d3_behavior_dragMove() { - if (!d3_behavior_dragTarget) return; - var parent = d3_behavior_dragTarget.parentNode; - - // O NOES! The drag element was removed from the DOM. - if (!parent) return d3_behavior_dragUp(); - - d3_behavior_dragDispatch("drag"); - d3_eventCancel(); -} - -function d3_behavior_dragUp() { - if (!d3_behavior_dragTarget) return; - d3_behavior_dragDispatch("dragend"); - - // If the node was moved, prevent the mouseup from propagating. - // Also prevent the subsequent click from propagating (e.g., for anchors). - if (d3_behavior_dragMoved) { - d3_eventCancel(); - d3_behavior_dragMoved = d3.event.target === d3_behavior_dragEventTarget; - } - - d3_behavior_dragEvent = - d3_behavior_dragEventTarget = - d3_behavior_dragTarget = - d3_behavior_dragArguments = - d3_behavior_dragOffset = - d3_behavior_dragOrigin = null; -} - -function d3_behavior_dragClick() { - if (d3_behavior_dragMoved) { - d3_eventCancel(); - d3_behavior_dragMoved = 0; - } -} -// TODO unbind zoom behavior? -d3.behavior.zoom = function() { - var xyz = [0, 0, 0], - event = d3.dispatch("zoom"), - extent = d3_behavior_zoomInfiniteExtent; - - function zoom() { - this - .on("mousedown.zoom", mousedown) - .on("mousewheel.zoom", mousewheel) - .on("DOMMouseScroll.zoom", mousewheel) - .on("dblclick.zoom", dblclick) - .on("touchstart.zoom", touchstart); - - d3.select(window) - .on("mousemove.zoom", d3_behavior_zoomMousemove) - .on("mouseup.zoom", d3_behavior_zoomMouseup) - .on("touchmove.zoom", d3_behavior_zoomTouchmove) - .on("touchend.zoom", d3_behavior_zoomTouchup) - .on("click.zoom", d3_behavior_zoomClick, true); - } - - // snapshot the local context for subsequent dispatch - function start() { - d3_behavior_zoomXyz = xyz; - d3_behavior_zoomExtent = extent; - d3_behavior_zoomDispatch = event.zoom; - d3_behavior_zoomEventTarget = d3.event.target; - d3_behavior_zoomTarget = this; - d3_behavior_zoomArguments = arguments; - } - - function mousedown() { - start.apply(this, arguments); - d3_behavior_zoomPanning = d3_behavior_zoomLocation(d3.svg.mouse(d3_behavior_zoomTarget)); - d3_behavior_zoomMoved = 0; - d3.event.preventDefault(); - window.focus(); - } - - // store starting mouse location - function mousewheel() { - start.apply(this, arguments); - if (!d3_behavior_zoomZooming) d3_behavior_zoomZooming = d3_behavior_zoomLocation(d3.svg.mouse(d3_behavior_zoomTarget)); - d3_behavior_zoomTo(d3_behavior_zoomDelta() + xyz[2], d3.svg.mouse(d3_behavior_zoomTarget), d3_behavior_zoomZooming); - } - - function dblclick() { - start.apply(this, arguments); - var mouse = d3.svg.mouse(d3_behavior_zoomTarget); - d3_behavior_zoomTo(d3.event.shiftKey ? Math.ceil(xyz[2] - 1) : Math.floor(xyz[2] + 1), mouse, d3_behavior_zoomLocation(mouse)); - } - - // doubletap detection - function touchstart() { - start.apply(this, arguments); - var touches = d3_behavior_zoomTouchup(), - touch, - now = Date.now(); - if ((touches.length === 1) && (now - d3_behavior_zoomLast < 300)) { - d3_behavior_zoomTo(1 + Math.floor(xyz[2]), touch = touches[0], d3_behavior_zoomLocations[touch.identifier]); - } - d3_behavior_zoomLast = now; - } - - zoom.extent = function(x) { - if (!arguments.length) return extent; - extent = x == null ? d3_behavior_zoomInfiniteExtent : x; - return zoom; - }; - - return d3.rebind(zoom, event, "on"); -}; - -var d3_behavior_zoomDiv, - d3_behavior_zoomPanning, - d3_behavior_zoomZooming, - d3_behavior_zoomLocations = {}, // identifier -> location - d3_behavior_zoomLast = 0, - d3_behavior_zoomXyz, - d3_behavior_zoomExtent, - d3_behavior_zoomDispatch, - d3_behavior_zoomEventTarget, - d3_behavior_zoomTarget, - d3_behavior_zoomArguments, - d3_behavior_zoomMoved; - -function d3_behavior_zoomLocation(point) { - return [ - point[0] - d3_behavior_zoomXyz[0], - point[1] - d3_behavior_zoomXyz[1], - d3_behavior_zoomXyz[2] - ]; -} - -// detect the pixels that would be scrolled by this wheel event -function d3_behavior_zoomDelta() { - - // mousewheel events are totally broken! - // https://bugs.webkit.org/show_bug.cgi?id=40441 - // not only that, but Chrome and Safari differ in re. to acceleration! - if (!d3_behavior_zoomDiv) { - d3_behavior_zoomDiv = d3.select("body").append("div") - .style("visibility", "hidden") - .style("top", 0) - .style("height", 0) - .style("width", 0) - .style("overflow-y", "scroll") - .append("div") - .style("height", "2000px") - .node().parentNode; - } - - var e = d3.event, delta; - try { - d3_behavior_zoomDiv.scrollTop = 1000; - d3_behavior_zoomDiv.dispatchEvent(e); - delta = 1000 - d3_behavior_zoomDiv.scrollTop; - } catch (error) { - delta = e.wheelDelta || (-e.detail * 5); - } - - return delta * .005; -} - -// Note: Since we don't rotate, it's possible for the touches to become -// slightly detached from their original positions. Thus, we recompute the -// touch points on touchend as well as touchstart! -function d3_behavior_zoomTouchup() { - var touches = d3.svg.touches(d3_behavior_zoomTarget), - i = -1, - n = touches.length, - touch; - while (++i < n) d3_behavior_zoomLocations[(touch = touches[i]).identifier] = d3_behavior_zoomLocation(touch); - return touches; -} - -function d3_behavior_zoomTouchmove() { - var touches = d3.svg.touches(d3_behavior_zoomTarget); - switch (touches.length) { - - // single-touch pan - case 1: { - var touch = touches[0]; - d3_behavior_zoomTo(d3_behavior_zoomXyz[2], touch, d3_behavior_zoomLocations[touch.identifier]); - break; - } - - // double-touch pan + zoom - case 2: { - var p0 = touches[0], - p1 = touches[1], - p2 = [(p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2], - l0 = d3_behavior_zoomLocations[p0.identifier], - l1 = d3_behavior_zoomLocations[p1.identifier], - l2 = [(l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2, l0[2]]; - d3_behavior_zoomTo(Math.log(d3.event.scale) / Math.LN2 + l0[2], p2, l2); - break; - } - } -} - -function d3_behavior_zoomMousemove() { - d3_behavior_zoomZooming = null; - if (d3_behavior_zoomPanning) { - d3_behavior_zoomMoved = 1; - d3_behavior_zoomTo(d3_behavior_zoomXyz[2], d3.svg.mouse(d3_behavior_zoomTarget), d3_behavior_zoomPanning); - } -} - -function d3_behavior_zoomMouseup() { - if (d3_behavior_zoomPanning) { - if (d3_behavior_zoomMoved) { - d3_eventCancel(); - d3_behavior_zoomMoved = d3_behavior_zoomEventTarget === d3.event.target; - } - - d3_behavior_zoomXyz = - d3_behavior_zoomExtent = - d3_behavior_zoomDispatch = - d3_behavior_zoomEventTarget = - d3_behavior_zoomTarget = - d3_behavior_zoomArguments = - d3_behavior_zoomPanning = null; - } -} - -function d3_behavior_zoomClick() { - if (d3_behavior_zoomMoved) { - d3_eventCancel(); - d3_behavior_zoomMoved = 0; - } -} - -function d3_behavior_zoomTo(z, x0, x1) { - z = d3_behavior_zoomExtentClamp(z, 2); - var j = Math.pow(2, d3_behavior_zoomXyz[2]), - k = Math.pow(2, z), - K = Math.pow(2, (d3_behavior_zoomXyz[2] = z) - x1[2]), - x_ = d3_behavior_zoomXyz[0], - y_ = d3_behavior_zoomXyz[1], - x = d3_behavior_zoomXyz[0] = d3_behavior_zoomExtentClamp((x0[0] - x1[0] * K), 0, k), - y = d3_behavior_zoomXyz[1] = d3_behavior_zoomExtentClamp((x0[1] - x1[1] * K), 1, k), - o = d3.event; // Events can be reentrant (e.g., focus). - - d3.event = { - scale: k, - translate: [x, y], - transform: function(sx, sy) { - if (sx) transform(sx, x_, x); - if (sy) transform(sy, y_, y); - } - }; - - function transform(scale, a, b) { - scale.domain(scale.range().map(function(v) { return scale.invert(((v - b) * j) / k + a); })); - } - - try { - d3_behavior_zoomDispatch.apply(d3_behavior_zoomTarget, d3_behavior_zoomArguments); - } finally { - d3.event = o; - } - - o.preventDefault(); -} - -var d3_behavior_zoomInfiniteExtent = [ - [-Infinity, Infinity], - [-Infinity, Infinity], - [-Infinity, Infinity] -]; - -function d3_behavior_zoomExtentClamp(x, i, k) { - var range = d3_behavior_zoomExtent[i], - r0 = range[0], - r1 = range[1]; - return arguments.length === 3 - ? Math.max(r1 * (r1 === Infinity ? -Infinity : 1 / k - 1), - Math.min(r0 === -Infinity ? Infinity : r0, x / k)) * k - : Math.max(r0, Math.min(r1, x)); -} -})(); |