diff options
Diffstat (limited to 'media/d3.js')
-rw-r--r-- | media/d3.js | 962 |
1 files changed, 745 insertions, 217 deletions
diff --git a/media/d3.js b/media/d3.js index 09a9b397..1f078070 100644 --- a/media/d3.js +++ b/media/d3.js @@ -1,25 +1,25 @@ /* d3.js - Data Driven Documents - * Version: 2.4.3 + * 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 @@ -43,7 +43,7 @@ try { d3_style_setProperty.call(this, name, value + "", priority); }; } -d3 = {version: "2.4.3"}; // semver +d3 = {version: "2.6.1"}; // semver var d3_array = d3_arraySlice; // conversion for NodeLists function d3_arrayCopy(pseudoarray) { @@ -79,13 +79,22 @@ function d3_this() { d3.functor = function(v) { return typeof v === "function" ? v : function() { return v; }; }; -// A getter-setter method that preserves the appropriate `this` context. -d3.rebind = function(object, method) { +// 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 x = method.apply(object, arguments); - return arguments.length ? object : x; + 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; }; @@ -138,6 +147,42 @@ d3.max = function(array, f) { } 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); } @@ -163,6 +208,9 @@ d3.quantile = function(values, p) { 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;) { @@ -452,66 +500,79 @@ d3.xml = function(url, mime, callback) { } d3.xhr(url, mime, ready); }; -d3.ns = { - - prefix: { - 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/" - }, +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 : { - space: d3.ns.prefix[name.substring(0, i)], - local: name.substring(i + 1) - }; + 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)}; } - }; -/** @param {...string} types */ -d3.dispatch = function(types) { - var dispatch = {}, - type; - for (var i = 0, n = arguments.length; i < n; i++) { - type = arguments[i]; - dispatch[type] = d3_dispatch(type); - } +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(type) { - var dispatch = {}, - listeners = []; +function d3_dispatch() {} - dispatch.add = function(listener) { - for (var i = 0; i < listeners.length; i++) { - if (listeners[i].listener == listener) return dispatch; // already registered - } - listeners.push({listener: listener, on: true}); - return dispatch; - }; +d3_dispatch.prototype.on = function(type, listener) { + var i = type.indexOf("."), + name = ""; - dispatch.remove = function(listener) { - for (var i = 0; i < listeners.length; i++) { - var l = listeners[i]; - if (l.listener == listener) { - l.on = false; - listeners = listeners.slice(0, i).concat(listeners.slice(i + 1)); - break; - } + // 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]; } - return dispatch; - }; - dispatch.dispatch = function() { - var ls = listeners; // defensive reference - for (var i = 0, n = ls.length; i < n; i++) { - var l = ls[i]; - if (l.on) l.listener.apply(this, arguments); + // add the new listener, if any + if (listener) { + listeners.push(listenerByName[name] = {on: listener}); } + + return dispatch; }; return dispatch; @@ -765,6 +826,11 @@ function d3_ease_bounce(t) { : 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))); @@ -859,6 +925,10 @@ d3.interpolateString = function(a, b) { }; }; +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); @@ -929,21 +999,20 @@ d3.interpolateObject = function(a, b) { }; } -var d3_interpolate_number = /[-+]?(?:\d+\.\d+|\d+\.|\.\d+|\d+)(?:[eE][-]?\d+)?/g, - d3_interpolate_rgb = {background: 1, fill: 1, stroke: 1}; +var d3_interpolate_number = /[-+]?(?:\d*\.?\d+)(?:[eE][-+]?\d+)?/g; function d3_interpolateByName(n) { - return n in d3_interpolate_rgb || /\bcolor\b/.test(n) - ? d3.interpolateRgb + 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 b === "string") && d3.interpolateString(String(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(String(a), b); }, - function(a, b) { return (typeof b === "number") && d3.interpolateNumber(+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; @@ -1551,7 +1620,7 @@ d3_selectionPrototype.append = function(name) { name = d3.ns.qualify(name); function append() { - return this.appendChild(document.createElement(name)); + return this.appendChild(document.createElementNS(this.namespaceURI, name)); } function appendNS() { @@ -1568,7 +1637,7 @@ d3_selectionPrototype.insert = function(name, before) { function insert() { return this.insertBefore( - document.createElement(name), + document.createElementNS(this.namespaceURI, name), d3_select(before, this)); } @@ -1699,40 +1768,6 @@ d3_selectionPrototype.data = function(data, join) { function d3_selection_dataNode(data) { return {__data__: data}; } -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.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); -}; // TODO preserve null elements to maintain index? d3_selectionPrototype.filter = function(filter) { var subgroups = [], @@ -1857,7 +1892,7 @@ d3_selectionPrototype.transition = function() { } } - return d3_transition(subgroups, d3_transitionInheritId || ++d3_transitionId); + return d3_transition(subgroups, d3_transitionInheritId || ++d3_transitionId, Date.now()); }; var d3_selectionRoot = d3_selection([[document]]); @@ -1877,16 +1912,52 @@ d3.selectAll = function(selector) { ? d3_selectionRoot.selectAll(selector) : d3_selection([d3_array(selector)]); // assume node[] }; -function d3_transition(groups, id) { +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, - then = Date.now(); + 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]; @@ -1902,7 +1973,7 @@ function d3_transition(groups, id) { groups.each = function(type, listener) { if (arguments.length < 2) return d3_transition_each.call(groups, type); - event[type].add(listener); + event.on(type, listener); return groups; }; @@ -1916,7 +1987,7 @@ function d3_transition(groups, id) { ++lock.count; - delay <= elapsed ? start(elapsed) : d3.timer(start, delay, then); + delay <= elapsed ? start(elapsed) : d3.timer(start, delay, time); function start(elapsed) { if (lock.active > id) return stop(); @@ -1928,8 +1999,8 @@ function d3_transition(groups, id) { } } - event.start.dispatch.call(node, d, i); - if (!tick(elapsed)) d3.timer(tick, 0, then); + event.start.call(node, d, i); + if (!tick(elapsed)) d3.timer(tick, 0, time); return 1; } @@ -1947,7 +2018,7 @@ function d3_transition(groups, id) { if (t >= 1) { stop(); d3_transitionInheritId = id; - event.end.dispatch.call(node, d, i); + event.end.call(node, d, i); d3_transitionInheritId = 0; return 1; } @@ -1959,7 +2030,7 @@ function d3_transition(groups, id) { } }); return 1; - }, 0, then); + }, 0, time); return groups; } @@ -1970,17 +2041,18 @@ function d3_transitionNull(d, i, a) { return a != "" && d3_transitionRemove; } -function d3_transitionTween(b) { +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 && d3.interpolate(a, v); + : a != v && interpolate(a, v); } function transitionString(d, i, a) { - return a != b && d3.interpolate(a, b); + return a != b && interpolate(a, b); } return typeof b === "function" ? transitionFunction @@ -2020,7 +2092,7 @@ d3_transitionPrototype.select = function(selector) { } } - return d3_transition(subgroups, this.id).ease(this.ease()); + return d3_transition(subgroups, this.id, this.time).ease(this.ease()); }; d3_transitionPrototype.selectAll = function(selector) { var subgroups = [], @@ -2042,10 +2114,10 @@ d3_transitionPrototype.selectAll = function(selector) { } } - return d3_transition(subgroups, this.id).ease(this.ease()); + return d3_transition(subgroups, this.id, this.time).ease(this.ease()); }; d3_transitionPrototype.attr = function(name, value) { - return this.attrTween(name, d3_transitionTween(value)); + return this.attrTween(name, d3_transitionTween(name, value)); }; d3_transitionPrototype.attrTween = function(nameNS, tween) { @@ -2069,7 +2141,7 @@ d3_transitionPrototype.attrTween = function(nameNS, tween) { }; d3_transitionPrototype.style = function(name, value, priority) { if (arguments.length < 3) priority = ""; - return this.styleTween(name, d3_transitionTween(value), priority); + return this.styleTween(name, d3_transitionTween(name, value), priority); }; d3_transitionPrototype.styleTween = function(name, tween, priority) { @@ -2222,6 +2294,64 @@ var d3_timer_frame = window.requestAnimationFrame || 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 = {}; @@ -2229,6 +2359,10 @@ 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, @@ -2327,11 +2461,7 @@ function d3_scale_linear(domain, range, interpolate, clamp) { }; function d3_scale_linearRebind(scale, linear) { - scale.range = d3.rebind(scale, linear.range); - scale.rangeRound = d3.rebind(scale, linear.rangeRound); - scale.interpolate = d3.rebind(scale, linear.interpolate); - scale.clamp = d3.rebind(scale, linear.clamp); - return scale; + return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp"); } function d3_scale_linearNice(dx) { @@ -2425,8 +2555,8 @@ function d3_scale_log(linear, log) { if (extent.every(isFinite)) { var i = Math.floor(extent[0]), j = Math.ceil(extent[1]), - u = Math.round(pow(extent[0])), - v = Math.round(pow(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); @@ -2445,7 +2575,7 @@ function d3_scale_log(linear, log) { 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-15, Math.floor) : (e = 1e-15, Math.ceil), + 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) : ""; @@ -2459,7 +2589,7 @@ function d3_scale_log(linear, log) { return d3_scale_linearRebind(scale, linear); }; -var d3_scale_logFormat = d3.format("e"); +var d3_scale_logFormat = d3.format(".0e"); function d3_scale_logp(x) { return Math.log(x) / Math.LN10; @@ -2546,6 +2676,10 @@ function d3_scale_ordinal(domain, ranger) { 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 = []; @@ -2568,7 +2702,7 @@ function d3_scale_ordinal(domain, ranger) { var start = x[0], stop = x[1], step = (stop - start) / (domain.length - 1 + padding); - range = domain.length < 2 ? [(start + stop) / 2] : d3.range(start + step * padding / 2, stop + step / 2, step); + range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step); rangeBand = 0; ranger = {t: "rangePoints", x: x, p: padding}; return scale; @@ -2579,7 +2713,7 @@ function d3_scale_ordinal(domain, ranger) { var start = x[0], stop = x[1], step = (stop - start) / (domain.length + padding); - range = d3.range(start + step * padding, stop, step); + range = steps(start + step * padding, step); rangeBand = step * (1 - padding); ranger = {t: "rangeBands", x: x, p: padding}; return scale; @@ -2589,9 +2723,8 @@ function d3_scale_ordinal(domain, ranger) { if (arguments.length < 2) padding = 0; var start = x[0], stop = x[1], - step = Math.floor((stop - start) / (domain.length + padding)), - err = stop - start - (domain.length - padding) * step; - range = d3.range(start + Math.round(err / 2), stop, step); + 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; @@ -2601,6 +2734,10 @@ function d3_scale_ordinal(domain, ranger) { return rangeBand; }; + scale.rangeExtent = function() { + return ranger.x; + }; + scale.copy = function() { return d3_scale_ordinal(domain, ranger); }; @@ -3542,7 +3679,7 @@ 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:svg") + .append("svg") .style("position", "absolute") .style("top", 0) .style("left", 0); @@ -3560,8 +3697,9 @@ function d3_svg_mousePoint(container, e) { point = point.matrixTransform(container.getScreenCTM().inverse()); return [point.x, point.y]; }; -d3.svg.touches = function(container) { - var touches = d3.event.touches; +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; @@ -3695,36 +3833,37 @@ d3.svg.axis = function() { } } : Object; - // Ticks. - var ticks = scale.ticks.apply(scale, tickArguments_), - tickFormat = tickFormat_ == null ? scale.tickFormat.apply(scale, tickArguments_) : tickFormat_; + // 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("svg:line", "g").attr("class", "tick minor").style("opacity", 1e-6), + 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("svg:g", "path").style("opacity", 1e-6), + 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_scaleExtent(scale.range()), + var range = d3_scaleRange(scale), path = g.selectAll(".domain").data([0]), - pathEnter = path.enter().append("svg:path").attr("class", "domain"), + pathEnter = path.enter().append("path").attr("class", "domain"), pathUpdate = transition(path); - // Stash the new scale and grab the old scale. - var scale0 = this.__chart__ || scale; - this.__chart__ = scale.copy(); + // 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("svg:line").attr("class", "tick"); - tickEnter.append("svg:text"); + tickEnter.append("line").attr("class", "tick"); + tickEnter.append("text"); tickUpdate.select("text").text(tickFormat); switch (orient) { @@ -3762,13 +3901,27 @@ d3.svg.axis = function() { } } - tickEnter.call(tickTransform, scale0); - tickUpdate.call(tickTransform, scale); - tickExit.call(tickTransform, scale); + // 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); + } - subtickEnter.call(tickTransform, scale0); - subtickUpdate.call(tickTransform, scale); - subtickExit.call(tickTransform, scale); + // 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); + } }); } @@ -3851,9 +4004,346 @@ function d3_svg_axisSubdivide(scale, ticks, m) { } 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"); + var event = d3.dispatch("drag", "dragstart", "dragend"), + origin = null; function drag() { this @@ -3872,9 +4362,16 @@ d3.behavior.drag = function() { function start() { d3_behavior_dragEvent = event; d3_behavior_dragEventTarget = d3.event.target; - d3_behavior_dragOffset = d3_behavior_dragPoint((d3_behavior_dragTarget = this).parentNode); - d3_behavior_dragMoved = 0; + 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() { @@ -3882,12 +4379,13 @@ d3.behavior.drag = function() { d3_behavior_dragDispatch("dragstart"); } - drag.on = function(type, listener) { - event[type].add(listener); + drag.origin = function(x) { + if (!arguments.length) return origin; + origin = x; return drag; }; - return drag; + return d3.rebind(drag, event, "on"); }; var d3_behavior_dragEvent, @@ -3895,34 +4393,39 @@ var d3_behavior_dragEvent, d3_behavior_dragTarget, d3_behavior_dragArguments, d3_behavior_dragOffset, - d3_behavior_dragMoved, - d3_behavior_dragStopClick; + d3_behavior_dragOrigin, + d3_behavior_dragMoved; function d3_behavior_dragDispatch(type) { - var o = d3.event, p = d3_behavior_dragTarget.parentNode, dx = 0, dy = 0; + var p = d3_behavior_dragPoint(), + o = d3.event, + e = d3.event = {type: type}; if (p) { - p = d3_behavior_dragPoint(p); - dx = p[0] - d3_behavior_dragOffset[0]; - dy = p[1] - d3_behavior_dragOffset[1]; - d3_behavior_dragOffset = p; - d3_behavior_dragMoved |= dx | dy; + 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.event = {dx: dx, dy: dy}; - d3_behavior_dragEvent[type].dispatch.apply(d3_behavior_dragTarget, d3_behavior_dragArguments); + d3_behavior_dragEvent[type].apply(d3_behavior_dragTarget, d3_behavior_dragArguments); } finally { d3.event = o; } + o.stopPropagation(); o.preventDefault(); } -function d3_behavior_dragPoint(container) { - return d3.event.touches - ? d3.svg.touches(container)[0] - : d3.svg.mouse(container); +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() { @@ -3933,39 +4436,39 @@ function d3_behavior_dragMove() { if (!parent) return d3_behavior_dragUp(); d3_behavior_dragDispatch("drag"); - d3_behavior_dragCancel(); + d3_eventCancel(); } function d3_behavior_dragUp() { if (!d3_behavior_dragTarget) return; d3_behavior_dragDispatch("dragend"); - d3_behavior_dragTarget = null; // 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_behavior_dragEventTarget === d3.event.target) { - d3_behavior_dragStopClick = true; - d3_behavior_dragCancel(); + 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_dragStopClick && d3_behavior_dragEventTarget === d3.event.target) { - d3_behavior_dragCancel(); - d3_behavior_dragStopClick = false; - d3_behavior_dragEventTarget = null; + if (d3_behavior_dragMoved) { + d3_eventCancel(); + d3_behavior_dragMoved = 0; } } - -function d3_behavior_dragCancel() { - d3.event.stopPropagation(); - d3.event.preventDefault(); -} // TODO unbind zoom behavior? -// TODO unbind listener? d3.behavior.zoom = function() { var xyz = [0, 0, 0], - event = d3.dispatch("zoom"); + event = d3.dispatch("zoom"), + extent = d3_behavior_zoomInfiniteExtent; function zoom() { this @@ -3986,7 +4489,8 @@ d3.behavior.zoom = function() { // snapshot the local context for subsequent dispatch function start() { d3_behavior_zoomXyz = xyz; - d3_behavior_zoomDispatch = event.zoom.dispatch; + d3_behavior_zoomExtent = extent; + d3_behavior_zoomDispatch = event.zoom; d3_behavior_zoomEventTarget = d3.event.target; d3_behavior_zoomTarget = this; d3_behavior_zoomArguments = arguments; @@ -3995,7 +4499,7 @@ d3.behavior.zoom = function() { function mousedown() { start.apply(this, arguments); d3_behavior_zoomPanning = d3_behavior_zoomLocation(d3.svg.mouse(d3_behavior_zoomTarget)); - d3_behavior_zoomMoved = false; + d3_behavior_zoomMoved = 0; d3.event.preventDefault(); window.focus(); } @@ -4025,12 +4529,13 @@ d3.behavior.zoom = function() { d3_behavior_zoomLast = now; } - zoom.on = function(type, listener) { - event[type].add(listener); + zoom.extent = function(x) { + if (!arguments.length) return extent; + extent = x == null ? d3_behavior_zoomInfiniteExtent : x; return zoom; }; - return zoom; + return d3.rebind(zoom, event, "on"); }; var d3_behavior_zoomDiv, @@ -4039,12 +4544,12 @@ var d3_behavior_zoomDiv, 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, - d3_behavior_zoomStopClick; + d3_behavior_zoomMoved; function d3_behavior_zoomLocation(point) { return [ @@ -4124,50 +4629,57 @@ function d3_behavior_zoomTouchmove() { function d3_behavior_zoomMousemove() { d3_behavior_zoomZooming = null; if (d3_behavior_zoomPanning) { - d3_behavior_zoomMoved = true; + 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_behavior_zoomEventTarget === d3.event.target) { - d3_behavior_zoomStopClick = true; + if (d3_behavior_zoomMoved) { + d3_eventCancel(); + d3_behavior_zoomMoved = d3_behavior_zoomEventTarget === d3.event.target; } - d3_behavior_zoomMousemove(); + + 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_zoomStopClick && d3_behavior_zoomEventTarget === d3.event.target) { - d3.event.stopPropagation(); - d3.event.preventDefault(); - d3_behavior_zoomStopClick = false; - d3_behavior_zoomEventTarget = null; + if (d3_behavior_zoomMoved) { + d3_eventCancel(); + d3_behavior_zoomMoved = 0; } } function d3_behavior_zoomTo(z, x0, x1) { - var K = Math.pow(2, (d3_behavior_zoomXyz[2] = z) - x1[2]), - x = d3_behavior_zoomXyz[0] = x0[0] - K * x1[0], - y = d3_behavior_zoomXyz[1] = x0[1] - K * x1[1], - o = d3.event, // Events can be reentrant (e.g., focus). - k = Math.pow(2, z); + 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); - if (sy) transform(sy, y); + if (sx) transform(sx, x_, x); + if (sy) transform(sy, y_, y); } }; - function transform(scale, o) { - var domain = scale.__domain || (scale.__domain = scale.domain()), - range = scale.range().map(function(v) { return (v - o) / k; }); - scale.domain(domain).domain(range.map(scale.invert)); + function transform(scale, a, b) { + scale.domain(scale.range().map(function(v) { return scale.invert(((v - b) * j) / k + a); })); } try { @@ -4178,4 +4690,20 @@ function d3_behavior_zoomTo(z, x0, x1) { 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)); +} })(); |