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December 19, 2014 21:50
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d3 2-way tree
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| var CollapsibleTree = function(elt) { | |
| var m = [20, 120, 20, 120], | |
| w = 1280 - m[1] - m[3], | |
| h = 580 - m[0] - m[2], | |
| i = 0, | |
| root, | |
| root2; | |
| var tree = d3.layout.tree() | |
| // .size([h, w]); | |
| .size([w, h]); | |
| // var diagonal = d3.svg.diagonal() | |
| // .projection(function(d) { return [d.y, d.x]; }); | |
| var parentdiagonal = d3.svg.diagonal() | |
| .projection(function(d) { return [d.x, -d.y]; }); | |
| var childdiagonal = d3.svg.diagonal() | |
| .projection(function(d) { return [d.x, d.y]; }); | |
| var vis = d3.select(elt).append("svg:svg") | |
| .attr("width", w + m[1] + m[3]) | |
| .attr("height", h + m[0] + m[2]) | |
| .append("svg:g") | |
| // .attr("transform", "translate(" + m[3] + "," + m[0] + ")"); // left-right | |
| // .attr("transform", "translate(" + m[0] + "," + m[3] + ")"); // top-bottom | |
| .attr("transform", "translate(0,"+h/2+")"); // bidirectional-tree | |
| var that = { | |
| init: function(url) { | |
| var that = this; | |
| d3.json(url, function(json) { | |
| root = json; | |
| // root.x0 = h / 2; | |
| // root.y0 = 0; | |
| root.x0 = w / 2; | |
| root.y0 = h / 2; | |
| // Initialize the display to show a few nodes. | |
| root.children.forEach(that.toggleAll); | |
| // that.toggle(root.children[1]); | |
| // that.toggle(root.children[1].children[2]); | |
| // that.toggle(root.children[9]); | |
| // that.toggle(root.children[9].children[0]); | |
| // that.updateParents(root); | |
| // that.updateChildren(root); | |
| that.updateBoth(root); | |
| }); | |
| }, | |
| updateBoth: function(source) { | |
| var duration = d3.event && d3.event.altKey ? 5000 : 500; | |
| // Compute the new tree layout. | |
| var nodes = tree.nodes(root).reverse(); | |
| // Normalize for fixed-depth. | |
| nodes.forEach(function(d) { d.y = d.depth * 120; }); | |
| // Update the nodes… | |
| var node = vis.selectAll("g.node") | |
| .data(nodes, function(d) { return d.id || (d.id = ++i); }); | |
| // Enter any new nodes at the parent's previous position. | |
| var nodeEnter = node.enter().append("svg:g") | |
| .attr("class", "node") | |
| .attr("transform", function(d) { return "translate(" + source.x0 + "," + source.y0 + ")"; }) | |
| .on("click", function(d) { that.toggle(d); that.updateBoth(d); }); | |
| nodeEnter.append("svg:circle") | |
| .attr("r", 1e-6) | |
| .style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; }); | |
| nodeEnter.append("svg:text") | |
| // .attr("x", function(d) { return d.children || d._children ? -10 : 10; }) | |
| .attr("x", function(d) { | |
| if( that.isParent(d) ) { | |
| return -10; | |
| } else { | |
| return d.children || d._children ? -10 : 10; | |
| } | |
| }) | |
| .attr("dy", ".35em") | |
| // .attr("text-anchor", function(d) { return d.children || d._children ? "end" : "start"; }) | |
| .attr("text-anchor", function(d) { | |
| if( that.isParent(d) ) { | |
| return "end"; | |
| } else { | |
| return d.children || d._children ? "end" : "start"; | |
| } | |
| }) | |
| .attr("transform",function(d) { | |
| if( d != root ) { | |
| if( that.isParent(d) ) { | |
| return "rotate(45)"; | |
| } else { | |
| return "rotate(45)"; | |
| } | |
| } | |
| }) | |
| .text(function(d) { return d.name; }) | |
| .style("fill-opacity", 1e-6); | |
| // Transition nodes to their new position. | |
| var nodeUpdate = node.transition() | |
| .duration(duration) | |
| .attr("transform", function(d) { | |
| if( that.isParent(d) ) { | |
| return "translate(" + d.x + "," + -d.y + ")"; | |
| } else { | |
| return "translate(" + d.x + "," + d.y + ")"; | |
| } | |
| }); | |
| nodeUpdate.select("circle") | |
| .attr("r", 4.5) | |
| .style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; }); | |
| nodeUpdate.select("text") | |
| .style("fill-opacity", 1); | |
| // Transition exiting nodes to the parent's new position. | |
| var nodeExit = node.exit().transition() | |
| .duration(duration) | |
| // .attr("transform", function(d) { return "translate(" + source.y + "," + source.x + ")"; }) | |
| .attr("transform", function(d) { return "translate(" + source.x + "," + source.y + ")"; }) | |
| .remove(); | |
| nodeExit.select("circle") | |
| .attr("r", 1e-6); | |
| nodeExit.select("text") | |
| .style("fill-opacity", 1e-6); | |
| // Update the links… | |
| var link = vis.selectAll("path.link") | |
| .data(tree.links_parents(nodes).concat(tree.links(nodes)), function(d) { return d.target.id; }); | |
| // Enter any new links at the parent's previous position. | |
| link.enter().insert("svg:path", "g") | |
| .attr("class", "link") | |
| .attr("d", function(d) { | |
| var o = {x: source.x0, y: source.y0}; | |
| if( that.isParent(d.target) ) { | |
| return parentdiagonal({source: o, target: o}); | |
| } else { | |
| // return parentdiagonal({source: o, target: o}); | |
| return childdiagonal({source: o, target: o}); | |
| } | |
| }) | |
| .transition() | |
| .duration(duration) | |
| // .attr("d", parentdiagonal); | |
| .attr("d", function(d) { | |
| if( that.isParent(d.target) ) { | |
| return parentdiagonal(d); | |
| } else { | |
| // return parentdiagonal(d); | |
| return childdiagonal(d); | |
| } | |
| }) | |
| // Transition links to their new position. | |
| link.transition() | |
| .duration(duration) | |
| // .attr("d", parentdiagonal); | |
| .attr("d", function(d) { | |
| if( that.isParent(d.target) ) { | |
| return parentdiagonal(d); | |
| } else { | |
| return childdiagonal(d); | |
| } | |
| }) | |
| // Transition exiting nodes to the parent's new position. | |
| link.exit().transition() | |
| .duration(duration) | |
| .attr("d", function(d) { | |
| var o = {x: source.x, y: source.y}; | |
| // return parentdiagonal({source: o, target: o}); | |
| if( that.isParent(d.target) ) { | |
| return parentdiagonal({source: o, target: o}); | |
| } else { | |
| return childdiagonal({source: o, target: o}); | |
| } | |
| }) | |
| .remove(); | |
| // Stash the old positions for transition. | |
| nodes.forEach(function(d) { | |
| d.x0 = d.x; | |
| d.y0 = d.y; | |
| }); | |
| }, | |
| updateParents: function(source) { | |
| var duration = d3.event && d3.event.altKey ? 5000 : 500; | |
| // Compute the new tree layout. | |
| var nodes = tree.nodes(root).reverse(); | |
| // Normalize for fixed-depth. | |
| nodes.forEach(function(d) { d.y = d.depth * 180; }); | |
| // Update the nodes… | |
| var node = vis.selectAll("g.node") | |
| .data(nodes, function(d) { return d.id || (d.id = ++i); }); | |
| // Enter any new nodes at the parent's previous position. | |
| var nodeEnter = node.enter().append("svg:g") | |
| .attr("class", "node") | |
| // .attr("transform", function(d) { return "translate(" + source.y0 + "," + source.x0 + ")"; }) | |
| .attr("transform", function(d) { return "translate(" + source.x0 + "," + source.y0 + ")"; }) | |
| .on("click", function(d) { that.toggle(d); that.updateParents(d); }); | |
| nodeEnter.append("svg:circle") | |
| .attr("r", 1e-6) | |
| .style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; }); | |
| nodeEnter.append("svg:text") | |
| .attr("x", function(d) { return d.children || d._children ? -10 : 10; }) | |
| .attr("dy", ".35em") | |
| .attr("text-anchor", function(d) { return d.children || d._children ? "end" : "start"; }) | |
| .text(function(d) { return d.name; }) | |
| .style("fill-opacity", 1e-6); | |
| // Transition nodes to their new position. | |
| var nodeUpdate = node.transition() | |
| .duration(duration) | |
| .attr("transform", function(d) { return "translate(" + d.x + "," + -d.y + ")"; }); | |
| nodeUpdate.select("circle") | |
| .attr("r", 4.5) | |
| .style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; }); | |
| nodeUpdate.select("text") | |
| .style("fill-opacity", 1); | |
| // Transition exiting nodes to the parent's new position. | |
| var nodeExit = node.exit().transition() | |
| .duration(duration) | |
| // .attr("transform", function(d) { return "translate(" + source.y + "," + source.x + ")"; }) | |
| .attr("transform", function(d) { return "translate(" + source.x + "," + source.y + ")"; }) | |
| .remove(); | |
| nodeExit.select("circle") | |
| .attr("r", 1e-6); | |
| nodeExit.select("text") | |
| .style("fill-opacity", 1e-6); | |
| // Update the links… | |
| var link = vis.selectAll("path.link") | |
| .data(tree.links(nodes), function(d) { return d.target.id; }); | |
| // Enter any new links at the parent's previous position. | |
| link.enter().insert("svg:path", "g") | |
| .attr("class", "link") | |
| .attr("d", function(d) { | |
| var o = {x: source.x0, y: source.y0}; | |
| return parentdiagonal({source: o, target: o}); | |
| }) | |
| .transition() | |
| .duration(duration) | |
| .attr("d", parentdiagonal); | |
| // Transition links to their new position. | |
| link.transition() | |
| .duration(duration) | |
| .attr("d", parentdiagonal); | |
| // Transition exiting nodes to the parent's new position. | |
| link.exit().transition() | |
| .duration(duration) | |
| .attr("d", function(d) { | |
| var o = {x: source.x, y: source.y}; | |
| return parentdiagonal({source: o, target: o}); | |
| }) | |
| .remove(); | |
| // Stash the old positions for transition. | |
| nodes.forEach(function(d) { | |
| d.x0 = d.x; | |
| d.y0 = d.y; | |
| }); | |
| }, | |
| updateChildren: function(source) { | |
| var duration = d3.event && d3.event.altKey ? 5000 : 500; | |
| // Compute the new tree layout. | |
| var nodes = tree.nodes(root2).reverse(); | |
| // Normalize for fixed-depth. | |
| nodes.forEach(function(d) { d.y = d.depth * 180; }); | |
| // Update the nodes… | |
| var node = vis.selectAll("g.node") | |
| .data(nodes, function(d) { return d.id || (d.id = ++i); }); | |
| // Enter any new nodes at the parent's previous position. | |
| var nodeEnter = node.enter().append("svg:g") | |
| .attr("class", "node") | |
| // .attr("transform", function(d) { return "translate(" + source.y0 + "," + source.x0 + ")"; }) | |
| .attr("transform", function(d) { return "translate(" + source.x0 + "," + source.y0 + ")"; }) | |
| .on("click", function(d) { that.toggle(d); that.updateChildren(d); }); | |
| nodeEnter.append("svg:circle") | |
| .attr("r", 1e-6) | |
| .style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; }); | |
| nodeEnter.append("svg:text") | |
| .attr("x", function(d) { return d.children || d._children ? -10 : 10; }) | |
| .attr("dy", ".35em") | |
| .attr("text-anchor", function(d) { return d.children || d._children ? "end" : "start"; }) | |
| .text(function(d) { return d.name; }) | |
| .style("fill-opacity", 1e-6); | |
| // Transition nodes to their new position. | |
| var nodeUpdate = node.transition() | |
| .duration(duration) | |
| // .attr("transform", function(d) { return "translate(" + d.y + "," + d.x + ")"; }); | |
| .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; }); | |
| nodeUpdate.select("circle") | |
| .attr("r", 4.5) | |
| .style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; }); | |
| nodeUpdate.select("text") | |
| .style("fill-opacity", 1); | |
| // Transition exiting nodes to the parent's new position. | |
| var nodeExit = node.exit().transition() | |
| .duration(duration) | |
| // .attr("transform", function(d) { return "translate(" + source.y + "," + source.x + ")"; }) | |
| .attr("transform", function(d) { return "translate(" + source.x + "," + source.y + ")"; }) | |
| .remove(); | |
| nodeExit.select("circle") | |
| .attr("r", 1e-6); | |
| nodeExit.select("text") | |
| .style("fill-opacity", 1e-6); | |
| // Update the links… | |
| var link = vis.selectAll("path.link") | |
| .data(tree.links(nodes), function(d) { return d.target.id; }); | |
| // Enter any new links at the parent's previous position. | |
| link.enter().insert("svg:path", "g") | |
| .attr("class", "link") | |
| .attr("d", function(d) { | |
| var o = {x: source.x0, y: source.y0}; | |
| return childdiagonal({source: o, target: o}); | |
| }) | |
| .transition() | |
| .duration(duration) | |
| .attr("d", childdiagonal); | |
| // Transition links to their new position. | |
| link.transition() | |
| .duration(duration) | |
| .attr("d", childdiagonal); | |
| // Transition exiting nodes to the parent's new position. | |
| link.exit().transition() | |
| .duration(duration) | |
| .attr("d", function(d) { | |
| var o = {x: source.x, y: source.y}; | |
| return childdiagonal({source: o, target: o}); | |
| }) | |
| .remove(); | |
| // Stash the old positions for transition. | |
| nodes.forEach(function(d) { | |
| d.x0 = d.x; | |
| d.y0 = d.y; | |
| }); | |
| }, | |
| isParent: function(node) { | |
| if( node.parent && node.parent != root ) { | |
| return this.isParent(node.parent); | |
| } else | |
| // if ( node.name == 'data' || node.name == 'scale' || node.name == 'util' ) { | |
| if( node.isparent ) { | |
| return true; | |
| } else { | |
| return false; | |
| } | |
| }, | |
| // Toggle children. | |
| toggle: function(d) { | |
| if (d.children) { | |
| d._children = d.children; | |
| d.children = null; | |
| } else { | |
| d.children = d._children; | |
| d._children = null; | |
| } | |
| if (d.parents) { | |
| d._parents = d.parents; | |
| d.parents = null; | |
| } else { | |
| d.parents = d._parents; | |
| d._parents = null; | |
| } | |
| }, | |
| toggleAll: function(d) { | |
| if (d.children) { | |
| d.children.forEach(that.toggleAll); | |
| that.toggle(d); | |
| } | |
| if (d.parents) { | |
| d.parents.forEach(that.toggleAll); | |
| that.toggle(d); | |
| } | |
| } | |
| } | |
| return that; | |
| } |
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| body { | |
| background: url(texture-noise.png); | |
| overflow: hidden; | |
| margin: 0; | |
| font-size: 14px; | |
| font-family: "Helvetica Neue", Helvetica; | |
| } | |
| #chart, #header, #footer { | |
| position: absolute; | |
| top: 0; | |
| } | |
| #header, #footer { | |
| z-index: 1; | |
| display: block; | |
| font-size: 36px; | |
| font-weight: 300; | |
| text-shadow: 0 1px 0 #fff; | |
| } | |
| #header.inverted, #footer.inverted { | |
| color: #fff; | |
| text-shadow: 0 1px 4px #000; | |
| } | |
| #header { | |
| top: 80px; | |
| left: 140px; | |
| width: 1000px; | |
| } | |
| #footer { | |
| top: 680px; | |
| right: 140px; | |
| text-align: right; | |
| } | |
| rect { | |
| fill: none; | |
| pointer-events: all; | |
| } | |
| pre { | |
| font-size: 18px; | |
| } | |
| line { | |
| stroke: #000; | |
| stroke-width: 1.5px; | |
| } | |
| .string, .regexp { | |
| color: #f39; | |
| } | |
| .keyword { | |
| color: #00c; | |
| } | |
| .comment { | |
| color: #777; | |
| font-style: oblique; | |
| } | |
| .number { | |
| color: #369; | |
| } | |
| .class, .special { | |
| color: #1181B8; | |
| } | |
| a:link, a:visited { | |
| color: #000; | |
| text-decoration: none; | |
| } | |
| a:hover { | |
| color: #666; | |
| } | |
| .hint { | |
| position: absolute; | |
| right: 0; | |
| width: 1280px; | |
| font-size: 12px; | |
| color: #999; | |
| } | |
| .node circle { | |
| cursor: pointer; | |
| fill: #fff; | |
| stroke: steelblue; | |
| stroke-width: 1.5px; | |
| } | |
| .node text { | |
| font-size: 11px; | |
| } | |
| path.link { | |
| fill: none; | |
| stroke: #ccc; | |
| stroke-width: 1.5px; | |
| } |
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| (function(){d3.layout = {}; | |
| // Implements hierarchical edge bundling using Holten's algorithm. For each | |
| // input link, a path is computed that travels through the tree, up the parent | |
| // hierarchy to the least common ancestor, and then back down to the destination | |
| // node. Each path is simply an array of nodes. | |
| d3.layout.bundle = function() { | |
| return function(links) { | |
| var paths = [], | |
| i = -1, | |
| n = links.length; | |
| while (++i < n) paths.push(d3_layout_bundlePath(links[i])); | |
| return paths; | |
| }; | |
| }; | |
| function d3_layout_bundlePath(link) { | |
| var start = link.source, | |
| end = link.target, | |
| lca = d3_layout_bundleLeastCommonAncestor(start, end), | |
| points = [start]; | |
| while (start !== lca) { | |
| start = start.parent; | |
| points.push(start); | |
| } | |
| var k = points.length; | |
| while (end !== lca) { | |
| points.splice(k, 0, end); | |
| end = end.parent; | |
| } | |
| return points; | |
| } | |
| function d3_layout_bundleAncestors(node) { | |
| var ancestors = [], | |
| parent = node.parent; | |
| while (parent != null) { | |
| ancestors.push(node); | |
| node = parent; | |
| parent = parent.parent; | |
| } | |
| ancestors.push(node); | |
| return ancestors; | |
| } | |
| function d3_layout_bundleLeastCommonAncestor(a, b) { | |
| if (a === b) return a; | |
| var aNodes = d3_layout_bundleAncestors(a), | |
| bNodes = d3_layout_bundleAncestors(b), | |
| aNode = aNodes.pop(), | |
| bNode = bNodes.pop(), | |
| sharedNode = null; | |
| while (aNode === bNode) { | |
| sharedNode = aNode; | |
| aNode = aNodes.pop(); | |
| bNode = bNodes.pop(); | |
| } | |
| return sharedNode; | |
| } | |
| d3.layout.chord = function() { | |
| var chord = {}, | |
| chords, | |
| groups, | |
| matrix, | |
| n, | |
| padding = 0, | |
| sortGroups, | |
| sortSubgroups, | |
| sortChords; | |
| function relayout() { | |
| var subgroups = {}, | |
| groupSums = [], | |
| groupIndex = d3.range(n), | |
| subgroupIndex = [], | |
| k, | |
| x, | |
| x0, | |
| i, | |
| j; | |
| chords = []; | |
| groups = []; | |
| // Compute the sum. | |
| k = 0, i = -1; while (++i < n) { | |
| x = 0, j = -1; while (++j < n) { | |
| x += matrix[i][j]; | |
| } | |
| groupSums.push(x); | |
| subgroupIndex.push(d3.range(n)); | |
| k += x; | |
| } | |
| // Sort groups… | |
| if (sortGroups) { | |
| groupIndex.sort(function(a, b) { | |
| return sortGroups(groupSums[a], groupSums[b]); | |
| }); | |
| } | |
| // Sort subgroups… | |
| if (sortSubgroups) { | |
| subgroupIndex.forEach(function(d, i) { | |
| d.sort(function(a, b) { | |
| return sortSubgroups(matrix[i][a], matrix[i][b]); | |
| }); | |
| }); | |
| } | |
| // Convert the sum to scaling factor for [0, 2pi]. | |
| // TODO Allow start and end angle to be specified. | |
| // TODO Allow padding to be specified as percentage? | |
| k = (2 * Math.PI - padding * n) / k; | |
| // Compute the start and end angle for each group and subgroup. | |
| x = 0, i = -1; while (++i < n) { | |
| x0 = x, j = -1; while (++j < n) { | |
| var di = groupIndex[i], | |
| dj = subgroupIndex[i][j], | |
| v = matrix[di][dj]; | |
| subgroups[di + "-" + dj] = { | |
| index: di, | |
| subindex: dj, | |
| startAngle: x, | |
| endAngle: x += v * k, | |
| value: v | |
| }; | |
| } | |
| groups.push({ | |
| index: di, | |
| startAngle: x0, | |
| endAngle: x, | |
| value: (x - x0) / k | |
| }); | |
| x += padding; | |
| } | |
| // Generate chords for each (non-empty) subgroup-subgroup link. | |
| i = -1; while (++i < n) { | |
| j = i - 1; while (++j < n) { | |
| var source = subgroups[i + "-" + j], | |
| target = subgroups[j + "-" + i]; | |
| if (source.value || target.value) { | |
| chords.push(source.value < target.value | |
| ? {source: target, target: source} | |
| : {source: source, target: target}); | |
| } | |
| } | |
| } | |
| if (sortChords) resort(); | |
| } | |
| function resort() { | |
| chords.sort(function(a, b) { | |
| return sortChords(a.target.value, b.target.value); | |
| }); | |
| } | |
| chord.matrix = function(x) { | |
| if (!arguments.length) return matrix; | |
| n = (matrix = x) && matrix.length; | |
| chords = groups = null; | |
| return chord; | |
| }; | |
| chord.padding = function(x) { | |
| if (!arguments.length) return padding; | |
| padding = x; | |
| chords = groups = null; | |
| return chord; | |
| }; | |
| chord.sortGroups = function(x) { | |
| if (!arguments.length) return sortGroups; | |
| sortGroups = x; | |
| chords = groups = null; | |
| return chord; | |
| }; | |
| chord.sortSubgroups = function(x) { | |
| if (!arguments.length) return sortSubgroups; | |
| sortSubgroups = x; | |
| chords = null; | |
| return chord; | |
| }; | |
| chord.sortChords = function(x) { | |
| if (!arguments.length) return sortChords; | |
| sortChords = x; | |
| if (chords) resort(); | |
| return chord; | |
| }; | |
| chord.chords = function() { | |
| if (!chords) relayout(); | |
| return chords; | |
| }; | |
| chord.groups = function() { | |
| if (!groups) relayout(); | |
| return groups; | |
| }; | |
| return chord; | |
| }; | |
| // A rudimentary force layout using Gauss-Seidel. | |
| d3.layout.force = function() { | |
| var force = {}, | |
| event = d3.dispatch("tick"), | |
| size = [1, 1], | |
| drag, | |
| alpha, | |
| friction = .9, | |
| linkDistance = d3_layout_forceLinkDistance, | |
| linkStrength = d3_layout_forceLinkStrength, | |
| charge = -30, | |
| gravity = .1, | |
| theta = .8, | |
| interval, | |
| nodes = [], | |
| links = [], | |
| distances, | |
| strengths, | |
| charges; | |
| function repulse(node) { | |
| return function(quad, x1, y1, x2, y2) { | |
| if (quad.point !== node) { | |
| var dx = quad.cx - node.x, | |
| dy = quad.cy - node.y, | |
| dn = 1 / Math.sqrt(dx * dx + dy * dy); | |
| /* Barnes-Hut criterion. */ | |
| if ((x2 - x1) * dn < theta) { | |
| var k = quad.charge * dn * dn; | |
| node.px -= dx * k; | |
| node.py -= dy * k; | |
| return true; | |
| } | |
| if (quad.point && isFinite(dn)) { | |
| var k = quad.pointCharge * dn * dn; | |
| node.px -= dx * k; | |
| node.py -= dy * k; | |
| } | |
| } | |
| return !quad.charge; | |
| }; | |
| } | |
| function tick() { | |
| var n = nodes.length, | |
| m = links.length, | |
| q, | |
| i, // current index | |
| o, // current object | |
| s, // current source | |
| t, // current target | |
| l, // current distance | |
| k, // current force | |
| x, // x-distance | |
| y; // y-distance | |
| // gauss-seidel relaxation for links | |
| for (i = 0; i < m; ++i) { | |
| o = links[i]; | |
| s = o.source; | |
| t = o.target; | |
| x = t.x - s.x; | |
| y = t.y - s.y; | |
| if (l = (x * x + y * y)) { | |
| l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l; | |
| x *= l; | |
| y *= l; | |
| t.x -= x * (k = s.weight / (t.weight + s.weight)); | |
| t.y -= y * k; | |
| s.x += x * (k = 1 - k); | |
| s.y += y * k; | |
| } | |
| } | |
| // apply gravity forces | |
| if (k = alpha * gravity) { | |
| x = size[0] / 2; | |
| y = size[1] / 2; | |
| i = -1; if (k) while (++i < n) { | |
| o = nodes[i]; | |
| o.x += (x - o.x) * k; | |
| o.y += (y - o.y) * k; | |
| } | |
| } | |
| // compute quadtree center of mass and apply charge forces | |
| if (charge) { | |
| d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges); | |
| i = -1; while (++i < n) { | |
| if (!(o = nodes[i]).fixed) { | |
| q.visit(repulse(o)); | |
| } | |
| } | |
| } | |
| // position verlet integration | |
| i = -1; while (++i < n) { | |
| o = nodes[i]; | |
| if (o.fixed) { | |
| o.x = o.px; | |
| o.y = o.py; | |
| } else { | |
| o.x -= (o.px - (o.px = o.x)) * friction; | |
| o.y -= (o.py - (o.py = o.y)) * friction; | |
| } | |
| } | |
| event.tick.dispatch({type: "tick", alpha: alpha}); | |
| // simulated annealing, basically | |
| return (alpha *= .99) < .005; | |
| } | |
| force.on = function(type, listener) { | |
| event[type].add(listener); | |
| return force; | |
| }; | |
| force.nodes = function(x) { | |
| if (!arguments.length) return nodes; | |
| nodes = x; | |
| return force; | |
| }; | |
| force.links = function(x) { | |
| if (!arguments.length) return links; | |
| links = x; | |
| return force; | |
| }; | |
| force.size = function(x) { | |
| if (!arguments.length) return size; | |
| size = x; | |
| return force; | |
| }; | |
| force.linkDistance = function(x) { | |
| if (!arguments.length) return linkDistance; | |
| linkDistance = d3.functor(x); | |
| return force; | |
| }; | |
| // For backwards-compatibility. | |
| force.distance = force.linkDistance; | |
| force.linkStrength = function(x) { | |
| if (!arguments.length) return linkStrength; | |
| linkStrength = d3.functor(x); | |
| return force; | |
| }; | |
| force.friction = function(x) { | |
| if (!arguments.length) return friction; | |
| friction = x; | |
| return force; | |
| }; | |
| force.charge = function(x) { | |
| if (!arguments.length) return charge; | |
| charge = typeof x === "function" ? x : +x; | |
| return force; | |
| }; | |
| force.gravity = function(x) { | |
| if (!arguments.length) return gravity; | |
| gravity = x; | |
| return force; | |
| }; | |
| force.theta = function(x) { | |
| if (!arguments.length) return theta; | |
| theta = x; | |
| return force; | |
| }; | |
| force.start = function() { | |
| var i, | |
| j, | |
| n = nodes.length, | |
| m = links.length, | |
| w = size[0], | |
| h = size[1], | |
| neighbors, | |
| o; | |
| for (i = 0; i < n; ++i) { | |
| (o = nodes[i]).index = i; | |
| o.weight = 0; | |
| } | |
| distances = []; | |
| strengths = []; | |
| for (i = 0; i < m; ++i) { | |
| o = links[i]; | |
| if (typeof o.source == "number") o.source = nodes[o.source]; | |
| if (typeof o.target == "number") o.target = nodes[o.target]; | |
| distances[i] = linkDistance.call(this, o, i); | |
| strengths[i] = linkStrength.call(this, o, i); | |
| ++o.source.weight; | |
| ++o.target.weight; | |
| } | |
| for (i = 0; i < n; ++i) { | |
| o = nodes[i]; | |
| if (isNaN(o.x)) o.x = position("x", w); | |
| if (isNaN(o.y)) o.y = position("y", h); | |
| if (isNaN(o.px)) o.px = o.x; | |
| if (isNaN(o.py)) o.py = o.y; | |
| } | |
| charges = []; | |
| if (typeof charge === "function") { | |
| for (i = 0; i < n; ++i) { | |
| charges[i] = +charge.call(this, nodes[i], i); | |
| } | |
| } else { | |
| for (i = 0; i < n; ++i) { | |
| charges[i] = charge; | |
| } | |
| } | |
| // initialize node position based on first neighbor | |
| function position(dimension, size) { | |
| var neighbors = neighbor(i), | |
| j = -1, | |
| m = neighbors.length, | |
| x; | |
| while (++j < m) if (!isNaN(x = neighbors[j][dimension])) return x; | |
| return Math.random() * size; | |
| } | |
| // initialize neighbors lazily | |
| function neighbor() { | |
| if (!neighbors) { | |
| neighbors = []; | |
| for (j = 0; j < n; ++j) { | |
| neighbors[j] = []; | |
| } | |
| for (j = 0; j < m; ++j) { | |
| var o = links[j]; | |
| neighbors[o.source.index].push(o.target); | |
| neighbors[o.target.index].push(o.source); | |
| } | |
| } | |
| return neighbors[i]; | |
| } | |
| return force.resume(); | |
| }; | |
| force.resume = function() { | |
| alpha = .1; | |
| d3.timer(tick); | |
| return force; | |
| }; | |
| force.stop = function() { | |
| alpha = 0; | |
| return force; | |
| }; | |
| // use `node.call(force.drag)` to make nodes draggable | |
| force.drag = function() { | |
| if (!drag) drag = d3.behavior.drag() | |
| .on("dragstart", dragstart) | |
| .on("drag", d3_layout_forceDrag) | |
| .on("dragend", d3_layout_forceDragEnd); | |
| this.on("mouseover.force", d3_layout_forceDragOver) | |
| .on("mouseout.force", d3_layout_forceDragOut) | |
| .call(drag); | |
| }; | |
| function dragstart(d) { | |
| d3_layout_forceDragOver(d3_layout_forceDragNode = d); | |
| d3_layout_forceDragForce = force; | |
| } | |
| return force; | |
| }; | |
| var d3_layout_forceDragForce, | |
| d3_layout_forceDragNode; | |
| function d3_layout_forceDragOver(d) { | |
| d.fixed |= 2; | |
| } | |
| function d3_layout_forceDragOut(d) { | |
| if (d !== d3_layout_forceDragNode) d.fixed &= 1; | |
| } | |
| function d3_layout_forceDragEnd() { | |
| d3_layout_forceDrag(); | |
| d3_layout_forceDragNode.fixed &= 1; | |
| d3_layout_forceDragForce = d3_layout_forceDragNode = null; | |
| } | |
| function d3_layout_forceDrag() { | |
| d3_layout_forceDragNode.px += d3.event.dx; | |
| d3_layout_forceDragNode.py += d3.event.dy; | |
| d3_layout_forceDragForce.resume(); // restart annealing | |
| } | |
| function d3_layout_forceAccumulate(quad, alpha, charges) { | |
| var cx = 0, | |
| cy = 0; | |
| quad.charge = 0; | |
| if (!quad.leaf) { | |
| var nodes = quad.nodes, | |
| n = nodes.length, | |
| i = -1, | |
| c; | |
| while (++i < n) { | |
| c = nodes[i]; | |
| if (c == null) continue; | |
| d3_layout_forceAccumulate(c, alpha, charges); | |
| quad.charge += c.charge; | |
| cx += c.charge * c.cx; | |
| cy += c.charge * c.cy; | |
| } | |
| } | |
| if (quad.point) { | |
| // jitter internal nodes that are coincident | |
| if (!quad.leaf) { | |
| quad.point.x += Math.random() - .5; | |
| quad.point.y += Math.random() - .5; | |
| } | |
| var k = alpha * charges[quad.point.index]; | |
| quad.charge += quad.pointCharge = k; | |
| cx += k * quad.point.x; | |
| cy += k * quad.point.y; | |
| } | |
| quad.cx = cx / quad.charge; | |
| quad.cy = cy / quad.charge; | |
| } | |
| function d3_layout_forceLinkDistance(link) { | |
| return 20; | |
| } | |
| function d3_layout_forceLinkStrength(link) { | |
| return 1; | |
| } | |
| d3.layout.partition = function() { | |
| var hierarchy = d3.layout.hierarchy(), | |
| size = [1, 1]; // width, height | |
| function position(node, x, dx, dy) { | |
| var children = node.children; | |
| node.x = x; | |
| node.y = node.depth * dy; | |
| node.dx = dx; | |
| node.dy = dy; | |
| if (children && (n = children.length)) { | |
| var i = -1, | |
| n, | |
| c, | |
| d; | |
| dx = node.value ? dx / node.value : 0; | |
| while (++i < n) { | |
| position(c = children[i], x, d = c.value * dx, dy); | |
| x += d; | |
| } | |
| } | |
| } | |
| function depth(node) { | |
| var children = node.children, | |
| d = 0; | |
| if (children && (n = children.length)) { | |
| var i = -1, | |
| n; | |
| while (++i < n) d = Math.max(d, depth(children[i])); | |
| } | |
| return 1 + d; | |
| } | |
| function partition(d, i) { | |
| var nodes = hierarchy.call(this, d, i); | |
| position(nodes[0], 0, size[0], size[1] / depth(nodes[0])); | |
| return nodes; | |
| } | |
| partition.size = function(x) { | |
| if (!arguments.length) return size; | |
| size = x; | |
| return partition; | |
| }; | |
| return d3_layout_hierarchyRebind(partition, hierarchy); | |
| }; | |
| d3.layout.pie = function() { | |
| var value = Number, | |
| sort = null, | |
| startAngle = 0, | |
| endAngle = 2 * Math.PI; | |
| function pie(data, i) { | |
| // Compute the start angle. | |
| var a = +(typeof startAngle === "function" | |
| ? startAngle.apply(this, arguments) | |
| : startAngle); | |
| // Compute the angular range (end - start). | |
| var k = (typeof endAngle === "function" | |
| ? endAngle.apply(this, arguments) | |
| : endAngle) - startAngle; | |
| // Optionally sort the data. | |
| var index = d3.range(data.length); | |
| if (sort != null) index.sort(function(i, j) { | |
| return sort(data[i], data[j]); | |
| }); | |
| // Compute the numeric values for each data element. | |
| var values = data.map(value); | |
| // Convert k into a scale factor from value to angle, using the sum. | |
| k /= values.reduce(function(p, d) { return p + d; }, 0); | |
| // Compute the arcs! | |
| var arcs = index.map(function(i) { | |
| return { | |
| data: data[i], | |
| value: d = values[i], | |
| startAngle: a, | |
| endAngle: a += d * k | |
| }; | |
| }); | |
| // Return the arcs in the original data's order. | |
| return data.map(function(d, i) { | |
| return arcs[index[i]]; | |
| }); | |
| } | |
| /** | |
| * Specifies the value function *x*, which returns a nonnegative numeric value | |
| * for each datum. The default value function is `Number`. The value function | |
| * is passed two arguments: the current datum and the current index. | |
| */ | |
| pie.value = function(x) { | |
| if (!arguments.length) return value; | |
| value = x; | |
| return pie; | |
| }; | |
| /** | |
| * Specifies a sort comparison operator *x*. The comparator is passed two data | |
| * elements from the data array, a and b; it returns a negative value if a is | |
| * less than b, a positive value if a is greater than b, and zero if a equals | |
| * b. | |
| */ | |
| pie.sort = function(x) { | |
| if (!arguments.length) return sort; | |
| sort = x; | |
| return pie; | |
| }; | |
| /** | |
| * Specifies the overall start angle of the pie chart. Defaults to 0. The | |
| * start angle can be specified either as a constant or as a function; in the | |
| * case of a function, it is evaluated once per array (as opposed to per | |
| * element). | |
| */ | |
| pie.startAngle = function(x) { | |
| if (!arguments.length) return startAngle; | |
| startAngle = x; | |
| return pie; | |
| }; | |
| /** | |
| * Specifies the overall end angle of the pie chart. Defaults to 2π. The | |
| * end angle can be specified either as a constant or as a function; in the | |
| * case of a function, it is evaluated once per array (as opposed to per | |
| * element). | |
| */ | |
| pie.endAngle = function(x) { | |
| if (!arguments.length) return endAngle; | |
| endAngle = x; | |
| return pie; | |
| }; | |
| return pie; | |
| }; | |
| // data is two-dimensional array of x,y; we populate y0 | |
| d3.layout.stack = function() { | |
| var values = Object, | |
| order = d3_layout_stackOrders["default"], | |
| offset = d3_layout_stackOffsets["zero"], | |
| out = d3_layout_stackOut, | |
| x = d3_layout_stackX, | |
| y = d3_layout_stackY; | |
| function stack(data, index) { | |
| // Convert series to canonical two-dimensional representation. | |
| var series = data.map(function(d, i) { | |
| return values.call(stack, d, i); | |
| }); | |
| // Convert each series to canonical [[x,y]] representation. | |
| var points = series.map(function(d, i) { | |
| return d.map(function(v, i) { | |
| return [x.call(stack, v, i), y.call(stack, v, i)]; | |
| }); | |
| }); | |
| // Compute the order of series, and permute them. | |
| var orders = order.call(stack, points, index); | |
| series = d3.permute(series, orders); | |
| points = d3.permute(points, orders); | |
| // Compute the baseline… | |
| var offsets = offset.call(stack, points, index); | |
| // And propagate it to other series. | |
| var n = series.length, | |
| m = series[0].length, | |
| i, | |
| j, | |
| o; | |
| for (j = 0; j < m; ++j) { | |
| out.call(stack, series[0][j], o = offsets[j], points[0][j][1]); | |
| for (i = 1; i < n; ++i) { | |
| out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]); | |
| } | |
| } | |
| return data; | |
| } | |
| stack.values = function(x) { | |
| if (!arguments.length) return values; | |
| values = x; | |
| return stack; | |
| }; | |
| stack.order = function(x) { | |
| if (!arguments.length) return order; | |
| order = typeof x === "function" ? x : d3_layout_stackOrders[x]; | |
| return stack; | |
| }; | |
| stack.offset = function(x) { | |
| if (!arguments.length) return offset; | |
| offset = typeof x === "function" ? x : d3_layout_stackOffsets[x]; | |
| return stack; | |
| }; | |
| stack.x = function(z) { | |
| if (!arguments.length) return x; | |
| x = z; | |
| return stack; | |
| }; | |
| stack.y = function(z) { | |
| if (!arguments.length) return y; | |
| y = z; | |
| return stack; | |
| }; | |
| stack.out = function(z) { | |
| if (!arguments.length) return out; | |
| out = z; | |
| return stack; | |
| }; | |
| return stack; | |
| } | |
| function d3_layout_stackX(d) { | |
| return d.x; | |
| } | |
| function d3_layout_stackY(d) { | |
| return d.y; | |
| } | |
| function d3_layout_stackOut(d, y0, y) { | |
| d.y0 = y0; | |
| d.y = y; | |
| } | |
| var d3_layout_stackOrders = { | |
| "inside-out": function(data) { | |
| var n = data.length, | |
| i, | |
| j, | |
| max = data.map(d3_layout_stackMaxIndex), | |
| sums = data.map(d3_layout_stackReduceSum), | |
| index = d3.range(n).sort(function(a, b) { return max[a] - max[b]; }), | |
| top = 0, | |
| bottom = 0, | |
| tops = [], | |
| bottoms = []; | |
| for (i = 0; i < n; ++i) { | |
| j = index[i]; | |
| if (top < bottom) { | |
| top += sums[j]; | |
| tops.push(j); | |
| } else { | |
| bottom += sums[j]; | |
| bottoms.push(j); | |
| } | |
| } | |
| return bottoms.reverse().concat(tops); | |
| }, | |
| "reverse": function(data) { | |
| return d3.range(data.length).reverse(); | |
| }, | |
| "default": function(data) { | |
| return d3.range(data.length); | |
| } | |
| }; | |
| var d3_layout_stackOffsets = { | |
| "silhouette": function(data) { | |
| var n = data.length, | |
| m = data[0].length, | |
| sums = [], | |
| max = 0, | |
| i, | |
| j, | |
| o, | |
| y0 = []; | |
| for (j = 0; j < m; ++j) { | |
| for (i = 0, o = 0; i < n; i++) o += data[i][j][1]; | |
| if (o > max) max = o; | |
| sums.push(o); | |
| } | |
| for (j = 0; j < m; ++j) { | |
| y0[j] = (max - sums[j]) / 2; | |
| } | |
| return y0; | |
| }, | |
| "wiggle": function(data) { | |
| var n = data.length, | |
| x = data[0], | |
| m = x.length, | |
| max = 0, | |
| i, | |
| j, | |
| k, | |
| s1, | |
| s2, | |
| s3, | |
| dx, | |
| o, | |
| o0, | |
| y0 = []; | |
| y0[0] = o = o0 = 0; | |
| for (j = 1; j < m; ++j) { | |
| for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1]; | |
| for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) { | |
| for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) { | |
| s3 += (data[k][j][1] - data[k][j - 1][1]) / dx; | |
| } | |
| s2 += s3 * data[i][j][1]; | |
| } | |
| y0[j] = o -= s1 ? s2 / s1 * dx : 0; | |
| if (o < o0) o0 = o; | |
| } | |
| for (j = 0; j < m; ++j) y0[j] -= o0; | |
| return y0; | |
| }, | |
| "expand": function(data) { | |
| var n = data.length, | |
| m = data[0].length, | |
| k = 1 / n, | |
| i, | |
| j, | |
| o, | |
| y0 = []; | |
| for (j = 0; j < m; ++j) { | |
| for (i = 0, o = 0; i < n; i++) o += data[i][j][1]; | |
| if (o) for (i = 0; i < n; i++) data[i][j][1] /= o; | |
| else for (i = 0; i < n; i++) data[i][j][1] = k; | |
| } | |
| for (j = 0; j < m; ++j) y0[j] = 0; | |
| return y0; | |
| }, | |
| "zero": function(data) { | |
| var j = -1, | |
| m = data[0].length, | |
| y0 = []; | |
| while (++j < m) y0[j] = 0; | |
| return y0; | |
| } | |
| }; | |
| function d3_layout_stackMaxIndex(array) { | |
| var i = 1, | |
| j = 0, | |
| v = array[0][1], | |
| k, | |
| n = array.length; | |
| for (; i < n; ++i) { | |
| if ((k = array[i][1]) > v) { | |
| j = i; | |
| v = k; | |
| } | |
| } | |
| return j; | |
| } | |
| function d3_layout_stackReduceSum(d) { | |
| return d.reduce(d3_layout_stackSum, 0); | |
| } | |
| function d3_layout_stackSum(p, d) { | |
| return p + d[1]; | |
| } | |
| d3.layout.histogram = function() { | |
| var frequency = true, | |
| valuer = Number, | |
| ranger = d3_layout_histogramRange, | |
| binner = d3_layout_histogramBinSturges; | |
| function histogram(data, i) { | |
| var bins = [], | |
| values = data.map(valuer, this), | |
| range = ranger.call(this, values, i), | |
| thresholds = binner.call(this, range, values, i), | |
| bin, | |
| i = -1, | |
| n = values.length, | |
| m = thresholds.length - 1, | |
| k = frequency ? 1 : 1 / n, | |
| x; | |
| // Initialize the bins. | |
| while (++i < m) { | |
| bin = bins[i] = []; | |
| bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]); | |
| bin.y = 0; | |
| } | |
| // Fill the bins, ignoring values outside the range. | |
| i = -1; while(++i < n) { | |
| x = values[i]; | |
| if ((x >= range[0]) && (x <= range[1])) { | |
| bin = bins[d3.bisect(thresholds, x, 1, m) - 1]; | |
| bin.y += k; | |
| bin.push(data[i]); | |
| } | |
| } | |
| return bins; | |
| } | |
| // Specifies how to extract a value from the associated data. The default | |
| // value function is `Number`, which is equivalent to the identity function. | |
| histogram.value = function(x) { | |
| if (!arguments.length) return valuer; | |
| valuer = x; | |
| return histogram; | |
| }; | |
| // Specifies the range of the histogram. Values outside the specified range | |
| // will be ignored. The argument `x` may be specified either as a two-element | |
| // array representing the minimum and maximum value of the range, or as a | |
| // function that returns the range given the array of values and the current | |
| // index `i`. The default range is the extent (minimum and maximum) of the | |
| // values. | |
| histogram.range = function(x) { | |
| if (!arguments.length) return ranger; | |
| ranger = d3.functor(x); | |
| return histogram; | |
| }; | |
| // Specifies how to bin values in the histogram. The argument `x` may be | |
| // specified as a number, in which case the range of values will be split | |
| // uniformly into the given number of bins. Or, `x` may be an array of | |
| // threshold values, defining the bins; the specified array must contain the | |
| // rightmost (upper) value, thus specifying n + 1 values for n bins. Or, `x` | |
| // may be a function which is evaluated, being passed the range, the array of | |
| // values, and the current index `i`, returning an array of thresholds. The | |
| // default bin function will divide the values into uniform bins using | |
| // Sturges' formula. | |
| histogram.bins = function(x) { | |
| if (!arguments.length) return binner; | |
| binner = typeof x === "number" | |
| ? function(range) { return d3_layout_histogramBinFixed(range, x); } | |
| : d3.functor(x); | |
| return histogram; | |
| }; | |
| // Specifies whether the histogram's `y` value is a count (frequency) or a | |
| // probability (density). The default value is true. | |
| histogram.frequency = function(x) { | |
| if (!arguments.length) return frequency; | |
| frequency = !!x; | |
| return histogram; | |
| }; | |
| return histogram; | |
| }; | |
| function d3_layout_histogramBinSturges(range, values) { | |
| return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1)); | |
| } | |
| function d3_layout_histogramBinFixed(range, n) { | |
| var x = -1, | |
| b = +range[0], | |
| m = (range[1] - b) / n, | |
| f = []; | |
| while (++x <= n) f[x] = m * x + b; | |
| return f; | |
| } | |
| function d3_layout_histogramRange(values) { | |
| return [d3.min(values), d3.max(values)]; | |
| } | |
| d3.layout.hierarchy = function() { | |
| var sort = d3_layout_hierarchySort, | |
| parents = d3_layout_hierarchyParents, | |
| children = d3_layout_hierarchyChildren, | |
| value = d3_layout_hierarchyValue; | |
| // Recursively compute the node depth and value. | |
| // Also converts the data representation into a standard hierarchy structure. | |
| function recurseParents(data, depth, nodes) { | |
| var rents = parents.call(hierarchy, data, depth), | |
| node = d3_layout_hierarchyInline ? data : {data: data}; | |
| node.depth = depth; | |
| nodes.push(node); | |
| if (rents && (n = rents.length)) { | |
| var i = -1, | |
| n, | |
| c = node.parents = [], | |
| v = 0, | |
| j = depth + 1; | |
| while (++i < n) { | |
| d = recurseParents(rents[i], j, nodes); | |
| d.parent = node; // ? | |
| c.push(d); | |
| v += d.value; | |
| } | |
| if (sort) c.sort(sort); | |
| if (value) node.value = v; | |
| } else if (value) { | |
| node.value = +value.call(hierarchy, data, depth) || 0; | |
| } | |
| return node; | |
| } | |
| function recurse(data, depth, nodes) { | |
| var childs = children.call(hierarchy, data, depth), | |
| node = d3_layout_hierarchyInline ? data : {data: data}; | |
| node.depth = depth; | |
| nodes.push(node); | |
| if (childs && (n = childs.length)) { | |
| var i = -1, | |
| n, | |
| c = node.children = [], | |
| v = 0, | |
| j = depth + 1; | |
| while (++i < n) { | |
| d = recurse(childs[i], j, nodes); | |
| d.parent = node; | |
| c.push(d); | |
| v += d.value; | |
| } | |
| if (sort) c.sort(sort); | |
| if (value) node.value = v; | |
| } else if (value) { | |
| node.value = +value.call(hierarchy, data, depth) || 0; | |
| } | |
| return node; | |
| } | |
| // Recursively re-evaluates the node value. | |
| function revalue(node, depth) { | |
| var children = node.children, | |
| v = 0; | |
| if (children && (n = children.length)) { | |
| var i = -1, | |
| n, | |
| j = depth + 1; | |
| while (++i < n) v += revalue(children[i], j); | |
| } else if (value) { | |
| v = +value.call(hierarchy, d3_layout_hierarchyInline ? node : node.data, depth) || 0; | |
| } | |
| if (value) node.value = v; | |
| return v; | |
| } | |
| function hierarchy(d) { | |
| var nodes = []; | |
| recurseParents(d, 0, nodes); // ksee | |
| recurse(d, 0, nodes); | |
| return nodes; | |
| } | |
| hierarchy.sort = function(x) { | |
| if (!arguments.length) return sort; | |
| sort = x; | |
| return hierarchy; | |
| }; | |
| hierarchy.children = function(x) { | |
| if (!arguments.length) return children; | |
| children = x; | |
| return hierarchy; | |
| }; | |
| hierarchy.value = function(x) { | |
| if (!arguments.length) return value; | |
| value = x; | |
| return hierarchy; | |
| }; | |
| // Re-evaluates the `value` property for the specified hierarchy. | |
| hierarchy.revalue = function(root) { | |
| revalue(root, 0); | |
| return root; | |
| }; | |
| return hierarchy; | |
| }; | |
| // A method assignment helper for hierarchy subclasses. | |
| function d3_layout_hierarchyRebind_parent(object, hierarchy) { | |
| object.sort = d3.rebind(object, hierarchy.sort); | |
| object.parents = d3.rebind(object, hierarchy.parents); | |
| object.links_parents = d3_layout_hierarchyLinks_parents; | |
| object.value = d3.rebind(object, hierarchy.value); | |
| // If the new API is used, enabling inlining. | |
| object.nodes = function(d) { | |
| d3_layout_hierarchyInline = true; | |
| return (object.nodes = object)(d); | |
| }; | |
| return object; | |
| } | |
| function d3_layout_hierarchyRebind(object, hierarchy) { | |
| object.sort = d3.rebind(object, hierarchy.sort); | |
| object.children = d3.rebind(object, hierarchy.children); | |
| object.links = d3_layout_hierarchyLinks; | |
| object.value = d3.rebind(object, hierarchy.value); | |
| // If the new API is used, enabling inlining. | |
| object.nodes = function(d) { | |
| d3_layout_hierarchyInline = true; | |
| return (object.nodes = object)(d); | |
| }; | |
| return object; | |
| } | |
| function d3_layout_hierarchyParents(d) { | |
| return d.parents; | |
| } | |
| function d3_layout_hierarchyChildren(d) { | |
| return d.children; | |
| } | |
| function d3_layout_hierarchyValue(d) { | |
| return d.value; | |
| } | |
| function d3_layout_hierarchySort(a, b) { | |
| return b.value - a.value; | |
| } | |
| // Returns an array source+target objects for the specified nodes. | |
| function d3_layout_hierarchyLinks_parents(nodes) { | |
| return d3.merge(nodes.map(function(parent) { | |
| return (parent.parents || []).map(function(rent) { | |
| return {source: parent, target: rent}; | |
| }); | |
| })); | |
| } | |
| function d3_layout_hierarchyLinks(nodes) { | |
| return d3.merge(nodes.map(function(parent) { | |
| return (parent.children || []).map(function(child) { | |
| return {source: parent, target: child}; | |
| }); | |
| })); | |
| } | |
| // For backwards-compatibility, don't enable inlining by default. | |
| var d3_layout_hierarchyInline = false; | |
| d3.layout.pack = function() { | |
| var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), | |
| size = [1, 1]; | |
| function pack(d, i) { | |
| var nodes = hierarchy.call(this, d, i), | |
| root = nodes[0]; | |
| // Recursively compute the layout. | |
| root.x = 0; | |
| root.y = 0; | |
| d3_layout_packTree(root); | |
| // Scale the layout to fit the requested size. | |
| var w = size[0], | |
| h = size[1], | |
| k = 1 / Math.max(2 * root.r / w, 2 * root.r / h); | |
| d3_layout_packTransform(root, w / 2, h / 2, k); | |
| return nodes; | |
| } | |
| pack.size = function(x) { | |
| if (!arguments.length) return size; | |
| size = x; | |
| return pack; | |
| }; | |
| return d3_layout_hierarchyRebind(pack, hierarchy); | |
| }; | |
| function d3_layout_packSort(a, b) { | |
| return a.value - b.value; | |
| } | |
| function d3_layout_packInsert(a, b) { | |
| var c = a._pack_next; | |
| a._pack_next = b; | |
| b._pack_prev = a; | |
| b._pack_next = c; | |
| c._pack_prev = b; | |
| } | |
| function d3_layout_packSplice(a, b) { | |
| a._pack_next = b; | |
| b._pack_prev = a; | |
| } | |
| function d3_layout_packIntersects(a, b) { | |
| var dx = b.x - a.x, | |
| dy = b.y - a.y, | |
| dr = a.r + b.r; | |
| return (dr * dr - dx * dx - dy * dy) > .001; // within epsilon | |
| } | |
| function d3_layout_packCircle(nodes) { | |
| var xMin = Infinity, | |
| xMax = -Infinity, | |
| yMin = Infinity, | |
| yMax = -Infinity, | |
| n = nodes.length, | |
| a, b, c, j, k; | |
| function bound(node) { | |
| xMin = Math.min(node.x - node.r, xMin); | |
| xMax = Math.max(node.x + node.r, xMax); | |
| yMin = Math.min(node.y - node.r, yMin); | |
| yMax = Math.max(node.y + node.r, yMax); | |
| } | |
| // Create node links. | |
| nodes.forEach(d3_layout_packLink); | |
| // Create first node. | |
| a = nodes[0]; | |
| a.x = -a.r; | |
| a.y = 0; | |
| bound(a); | |
| // Create second node. | |
| if (n > 1) { | |
| b = nodes[1]; | |
| b.x = b.r; | |
| b.y = 0; | |
| bound(b); | |
| // Create third node and build chain. | |
| if (n > 2) { | |
| c = nodes[2]; | |
| d3_layout_packPlace(a, b, c); | |
| bound(c); | |
| d3_layout_packInsert(a, c); | |
| a._pack_prev = c; | |
| d3_layout_packInsert(c, b); | |
| b = a._pack_next; | |
| // Now iterate through the rest. | |
| for (var i = 3; i < n; i++) { | |
| d3_layout_packPlace(a, b, c = nodes[i]); | |
| // Search for the closest intersection. | |
| var isect = 0, s1 = 1, s2 = 1; | |
| for (j = b._pack_next; j !== b; j = j._pack_next, s1++) { | |
| if (d3_layout_packIntersects(j, c)) { | |
| isect = 1; | |
| break; | |
| } | |
| } | |
| if (isect == 1) { | |
| for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) { | |
| if (d3_layout_packIntersects(k, c)) { | |
| if (s2 < s1) { | |
| isect = -1; | |
| j = k; | |
| } | |
| break; | |
| } | |
| } | |
| } | |
| // Update node chain. | |
| if (isect == 0) { | |
| d3_layout_packInsert(a, c); | |
| b = c; | |
| bound(c); | |
| } else if (isect > 0) { | |
| d3_layout_packSplice(a, j); | |
| b = j; | |
| i--; | |
| } else { // isect < 0 | |
| d3_layout_packSplice(j, b); | |
| a = j; | |
| i--; | |
| } | |
| } | |
| } | |
| } | |
| // Re-center the circles and return the encompassing radius. | |
| var cx = (xMin + xMax) / 2, | |
| cy = (yMin + yMax) / 2, | |
| cr = 0; | |
| for (var i = 0; i < n; i++) { | |
| var node = nodes[i]; | |
| node.x -= cx; | |
| node.y -= cy; | |
| cr = Math.max(cr, node.r + Math.sqrt(node.x * node.x + node.y * node.y)); | |
| } | |
| // Remove node links. | |
| nodes.forEach(d3_layout_packUnlink); | |
| return cr; | |
| } | |
| function d3_layout_packLink(node) { | |
| node._pack_next = node._pack_prev = node; | |
| } | |
| function d3_layout_packUnlink(node) { | |
| delete node._pack_next; | |
| delete node._pack_prev; | |
| } | |
| function d3_layout_packTree(node) { | |
| var children = node.children; | |
| if (children && children.length) { | |
| children.forEach(d3_layout_packTree); | |
| node.r = d3_layout_packCircle(children); | |
| } else { | |
| node.r = Math.sqrt(node.value); | |
| } | |
| } | |
| function d3_layout_packTransform(node, x, y, k) { | |
| var children = node.children; | |
| node.x = (x += k * node.x); | |
| node.y = (y += k * node.y); | |
| node.r *= k; | |
| if (children) { | |
| var i = -1, n = children.length; | |
| while (++i < n) d3_layout_packTransform(children[i], x, y, k); | |
| } | |
| } | |
| function d3_layout_packPlace(a, b, c) { | |
| var db = a.r + c.r, | |
| dx = b.x - a.x, | |
| dy = b.y - a.y; | |
| if (db && (dx || dy)) { | |
| var da = b.r + c.r, | |
| dc = Math.sqrt(dx * dx + dy * dy), | |
| cos = Math.max(-1, Math.min(1, (db * db + dc * dc - da * da) / (2 * db * dc))), | |
| theta = Math.acos(cos), | |
| x = cos * (db /= dc), | |
| y = Math.sin(theta) * db; | |
| c.x = a.x + x * dx + y * dy; | |
| c.y = a.y + x * dy - y * dx; | |
| } else { | |
| c.x = a.x + db; | |
| c.y = a.y; | |
| } | |
| } | |
| // Implements a hierarchical layout using the cluster (or dendogram) algorithm. | |
| d3.layout.cluster = function() { | |
| var hierarchy = d3.layout.hierarchy().sort(null).value(null), | |
| separation = d3_layout_treeSeparation, | |
| size = [1, 1]; // width, height | |
| function cluster(d, i) { | |
| var nodes = hierarchy.call(this, d, i), | |
| root = nodes[0], | |
| previousNode, | |
| x = 0, | |
| kx, | |
| ky; | |
| // First walk, computing the initial x & y values. | |
| d3_layout_treeVisitAfter(root, function(node) { | |
| var children = node.children; | |
| if (children && children.length) { | |
| node.x = d3_layout_clusterX(children); | |
| node.y = d3_layout_clusterY(children); | |
| } else { | |
| node.x = previousNode ? x += separation(node, previousNode) : 0; | |
| node.y = 0; | |
| previousNode = node; | |
| } | |
| }); | |
| // Compute the left-most, right-most, and depth-most nodes for extents. | |
| var left = d3_layout_clusterLeft(root), | |
| right = d3_layout_clusterRight(root), | |
| x0 = left.x - separation(left, right) / 2, | |
| x1 = right.x + separation(right, left) / 2; | |
| // Second walk, normalizing x & y to the desired size. | |
| d3_layout_treeVisitAfter(root, function(node) { | |
| node.x = (node.x - x0) / (x1 - x0) * size[0]; | |
| node.y = (1 - node.y / root.y) * size[1]; | |
| }); | |
| return nodes; | |
| } | |
| cluster.separation = function(x) { | |
| if (!arguments.length) return separation; | |
| separation = x; | |
| return cluster; | |
| }; | |
| cluster.size = function(x) { | |
| if (!arguments.length) return size; | |
| size = x; | |
| return cluster; | |
| }; | |
| return d3_layout_hierarchyRebind(cluster, hierarchy); | |
| }; | |
| function d3_layout_clusterY(children) { | |
| return 1 + d3.max(children, function(child) { | |
| return child.y; | |
| }); | |
| } | |
| function d3_layout_clusterX(children) { | |
| return children.reduce(function(x, child) { | |
| return x + child.x; | |
| }, 0) / children.length; | |
| } | |
| function d3_layout_clusterLeft(node) { | |
| var children = node.children; | |
| return children && children.length ? d3_layout_clusterLeft(children[0]) : node; | |
| } | |
| function d3_layout_clusterRight(node) { | |
| var children = node.children, n; | |
| return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node; | |
| } | |
| // Node-link tree diagram using the Reingold-Tilford "tidy" algorithm | |
| d3.layout.tree = function() { | |
| var hierarchy = d3.layout.hierarchy().sort(null).value(null), | |
| separation = d3_layout_treeSeparation, | |
| size = [1, 1]; // width, height | |
| function tree(d, i) { | |
| var nodes = hierarchy.call(this, d, i), | |
| root = nodes[0]; | |
| function parentsFirstWalk(node, previousSibling) { | |
| var parents = node.parents, | |
| layout = node._tree; | |
| if (parents && (n = parents.length)) { | |
| var n, | |
| firstParent = parents[0], | |
| previousParent, | |
| ancestor = firstParent, | |
| parent, | |
| i = -1; | |
| while (++i < n) { | |
| parent = parents[i]; | |
| parentsFirstWalk(parent, previousParent); | |
| ancestor = apportionParent(parent, previousParent, ancestor); | |
| previousParent = parent; | |
| } | |
| d3_layout_treeShift_parent(node); | |
| var midpoint = .5 * (firstParent._tree.prelim + parent._tree.prelim); | |
| if (previousSibling) { | |
| layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling); | |
| layout.mod = layout.prelim - midpoint; | |
| } else { | |
| layout.prelim = midpoint; | |
| } | |
| } else { | |
| if (previousSibling) { | |
| layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling); | |
| } | |
| } | |
| } | |
| function firstWalk(node, previousSibling) { | |
| var children = node.children, | |
| layout = node._tree; | |
| if (children && (n = children.length)) { | |
| var n, | |
| firstChild = children[0], | |
| previousChild, | |
| ancestor = firstChild, | |
| child, | |
| i = -1; | |
| while (++i < n) { | |
| child = children[i]; | |
| firstWalk(child, previousChild); | |
| ancestor = apportion(child, previousChild, ancestor); | |
| previousChild = child; | |
| } | |
| d3_layout_treeShift(node); | |
| var midpoint = .5 * (firstChild._tree.prelim + child._tree.prelim); | |
| if (previousSibling) { | |
| layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling); | |
| layout.mod = layout.prelim - midpoint; | |
| } else { | |
| layout.prelim = midpoint; | |
| } | |
| } else { | |
| if (previousSibling) { | |
| layout.prelim = previousSibling._tree.prelim + separation(node, previousSibling); | |
| } | |
| } | |
| } | |
| function parentsSecondWalk(node, x) { | |
| node.x = node._tree.prelim + x; | |
| var parents = node.parents; | |
| if (parents && (n = parents.length)) { | |
| var i = -1, | |
| n; | |
| x += node._tree.mod; | |
| while (++i < n) { | |
| parentsSecondWalk(parents[i], x); | |
| } | |
| } | |
| } | |
| function secondWalk(node, x) { | |
| node.x = node._tree.prelim + x; | |
| var children = node.children; | |
| if (children && (n = children.length)) { | |
| var i = -1, | |
| n; | |
| x += node._tree.mod; | |
| while (++i < n) { | |
| secondWalk(children[i], x); | |
| } | |
| } | |
| } | |
| function apportionParent(node, previousSibling, ancestor) { | |
| if (previousSibling) { | |
| var vip = node, | |
| vop = node, | |
| vim = previousSibling, | |
| vom = node.parent.parents[0], // ? | |
| sip = vip._tree.mod, | |
| sop = vop._tree.mod, | |
| sim = vim._tree.mod, | |
| som = vom._tree.mod, | |
| shift; | |
| // while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) { | |
| while (vim = d3_layout_treeRight_parents(vim), vip = d3_layout_treeLeft_parents(vip), vim && vip) { | |
| // vom = d3_layout_treeLeft(vom); | |
| // vop = d3_layout_treeRight(vop); | |
| vom = d3_layout_treeLeft_parents(vom); | |
| vop = d3_layout_treeRight_parents(vop); | |
| vop._tree.ancestor = node; | |
| shift = vim._tree.prelim + sim - vip._tree.prelim - sip + separation(vim, vip); | |
| if (shift > 0) { | |
| d3_layout_treeMove(d3_layout_treeAncestor(vim, node, ancestor), node, shift); | |
| sip += shift; | |
| sop += shift; | |
| } | |
| sim += vim._tree.mod; | |
| sip += vip._tree.mod; | |
| som += vom._tree.mod; | |
| sop += vop._tree.mod; | |
| } | |
| if (vim && !d3_layout_treeRight_parents(vop)) { | |
| vop._tree.thread = vim; | |
| vop._tree.mod += sim - sop; | |
| } | |
| if (vip && !d3_layout_treeLeft_parents(vom)) { | |
| vom._tree.thread = vip; | |
| vom._tree.mod += sip - som; | |
| ancestor = node; | |
| } | |
| } | |
| return ancestor; | |
| } | |
| function apportion(node, previousSibling, ancestor) { | |
| if (previousSibling) { | |
| var vip = node, | |
| vop = node, | |
| vim = previousSibling, | |
| vom = node.parent.children[0], | |
| sip = vip._tree.mod, | |
| sop = vop._tree.mod, | |
| sim = vim._tree.mod, | |
| som = vom._tree.mod, | |
| shift; | |
| while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) { | |
| vom = d3_layout_treeLeft(vom); | |
| vop = d3_layout_treeRight(vop); | |
| vop._tree.ancestor = node; | |
| shift = vim._tree.prelim + sim - vip._tree.prelim - sip + separation(vim, vip); | |
| if (shift > 0) { | |
| d3_layout_treeMove(d3_layout_treeAncestor(vim, node, ancestor), node, shift); | |
| sip += shift; | |
| sop += shift; | |
| } | |
| sim += vim._tree.mod; | |
| sip += vip._tree.mod; | |
| som += vom._tree.mod; | |
| sop += vop._tree.mod; | |
| } | |
| if (vim && !d3_layout_treeRight(vop)) { | |
| vop._tree.thread = vim; | |
| vop._tree.mod += sim - sop; | |
| } | |
| if (vip && !d3_layout_treeLeft(vom)) { | |
| vom._tree.thread = vip; | |
| vom._tree.mod += sip - som; | |
| ancestor = node; | |
| } | |
| } | |
| return ancestor; | |
| } | |
| // Initialize temporary layout variables. | |
| // ksee | |
| d3_layout_treeVisitAfter_parent(root, function(node, previousSibling) { | |
| node._tree = { | |
| ancestor: node, | |
| prelim: 0, | |
| mod: 0, | |
| change: 0, | |
| shift: 0, | |
| number: previousSibling ? previousSibling._tree.number + 1 : 0 | |
| }; | |
| }); | |
| d3_layout_treeVisitAfter(root, function(node, previousSibling) { | |
| node._tree = { | |
| ancestor: node, | |
| prelim: 0, | |
| mod: 0, | |
| change: 0, | |
| shift: 0, | |
| number: previousSibling ? previousSibling._tree.number + 1 : 0 | |
| }; | |
| }); | |
| // Compute the layout using Buchheim et al.'s algorithm. | |
| parentsFirstWalk(root); // ksee | |
| parentsSecondWalk(root, -root._tree.prelim); | |
| firstWalk(root); | |
| secondWalk(root, -root._tree.prelim); | |
| // Compute the left-most, right-most, and depth-most nodes for extents. | |
| // ksee | |
| var leftParent = d3_layout_treeSearch_parents(root, d3_layout_treeLeftmost), | |
| rightParent = d3_layout_treeSearch_parents(root, d3_layout_treeRightmost), | |
| deepParent = d3_layout_treeSearch_parents(root, d3_layout_treeDeepest), | |
| x0_parent = leftParent.x - separation(leftParent, rightParent) / 2, | |
| x1_parent = rightParent.x + separation(rightParent, leftParent) / 2, | |
| y1_parent = deepParent.depth || 1; | |
| left = d3_layout_treeSearch(root, d3_layout_treeLeftmost), | |
| right = d3_layout_treeSearch(root, d3_layout_treeRightmost), | |
| deep = d3_layout_treeSearch(root, d3_layout_treeDeepest), | |
| x0 = left.x - separation(left, right) / 2, | |
| x1 = right.x + separation(right, left) / 2, | |
| y1 = deep.depth || 1; | |
| // Clear temporary layout variables; transform x and y. | |
| // ksee | |
| d3_layout_treeVisitAfter_parent(root, function(node) { | |
| if( node != root ) { // don't position root node since d3_layout_treeVisitAfter will do it | |
| node.x = (node.x - x0_parent) / (x1_parent - x0_parent) * size[0]; | |
| node.y = node.depth / y1_parent * size[1]; | |
| delete node._tree; | |
| } | |
| }); | |
| d3_layout_treeVisitAfter(root, function(node) { | |
| node.x = (node.x - x0) / (x1 - x0) * size[0]; | |
| node.y = node.depth / y1 * size[1]; | |
| delete node._tree; | |
| }); | |
| return nodes; | |
| } | |
| tree.separation = function(x) { | |
| if (!arguments.length) return separation; | |
| separation = x; | |
| return tree; | |
| }; | |
| tree.size = function(x) { | |
| if (!arguments.length) return size; | |
| size = x; | |
| return tree; | |
| }; | |
| var object = d3_layout_hierarchyRebind_parent(tree, hierarchy); // ksee | |
| return d3_layout_hierarchyRebind(tree, hierarchy); | |
| }; | |
| function d3_layout_treeSeparation(a, b) { | |
| return a.parent == b.parent ? 1 : 2; | |
| } | |
| // function d3_layout_treeSeparationRadial(a, b) { | |
| // return (a.parent == b.parent ? 1 : 2) / a.depth; | |
| // } | |
| function d3_layout_treeLeft_parents(node) { | |
| var parents = node.parents; | |
| return parents && parents.length ? parents[0] : node._tree.thread; | |
| } | |
| function d3_layout_treeLeft(node) { | |
| var children = node.children; | |
| return children && children.length ? children[0] : node._tree.thread; | |
| } | |
| function d3_layout_treeRight_parents(node) { | |
| var parents = node.parents, | |
| n; | |
| return parents && (n = parents.length) ? parents[n - 1] : node._tree.thread; | |
| } | |
| function d3_layout_treeRight(node) { | |
| var children = node.children, | |
| n; | |
| return children && (n = children.length) ? children[n - 1] : node._tree.thread; | |
| } | |
| function d3_layout_treeSearch_parents(node, compare) { | |
| var parents = node.parents; | |
| if (parents && (n = parents.length)) { | |
| var parent, | |
| n, | |
| i = -1; | |
| while (++i < n) { | |
| if (compare(parent = d3_layout_treeSearch_parents(parents[i], compare), node) > 0) { | |
| node = parent; | |
| } | |
| } | |
| } | |
| return node; | |
| } | |
| function d3_layout_treeSearch(node, compare) { | |
| var children = node.children; | |
| if (children && (n = children.length)) { | |
| var child, | |
| n, | |
| i = -1; | |
| while (++i < n) { | |
| if (compare(child = d3_layout_treeSearch(children[i], compare), node) > 0) { | |
| node = child; | |
| } | |
| } | |
| } | |
| return node; | |
| } | |
| function d3_layout_treeRightmost(a, b) { | |
| return a.x - b.x; | |
| } | |
| function d3_layout_treeLeftmost(a, b) { | |
| return b.x - a.x; | |
| } | |
| function d3_layout_treeDeepest(a, b) { | |
| return a.depth - b.depth; | |
| } | |
| function d3_layout_treeVisitAfter_parent(node, callback) { | |
| function visit(node, previousSibling) { | |
| var parents = node.parents; | |
| if (parents && (n = parents.length)) { | |
| var parent, | |
| previousParent = null, | |
| i = -1, | |
| n; | |
| while (++i < n) { | |
| parent = parents[i]; | |
| visit(parent, previousParent); | |
| previousParent = parent; | |
| } | |
| } | |
| callback(node, previousSibling); | |
| } | |
| visit(node, null); | |
| } | |
| function d3_layout_treeVisitAfter(node, callback) { | |
| function visit(node, previousSibling) { | |
| var children = node.children; | |
| if (children && (n = children.length)) { | |
| var child, | |
| previousChild = null, | |
| i = -1, | |
| n; | |
| while (++i < n) { | |
| child = children[i]; | |
| visit(child, previousChild); | |
| previousChild = child; | |
| } | |
| } | |
| callback(node, previousSibling); | |
| } | |
| visit(node, null); | |
| } | |
| function d3_layout_treeShift_parent(node) { | |
| var shift = 0, | |
| change = 0, | |
| parents = node.parents, | |
| i = parents.length, | |
| parent; | |
| while (--i >= 0) { | |
| parent = parents[i]._tree; | |
| parent.prelim += shift; | |
| parent.mod += shift; | |
| shift += parent.shift + (change += parent.change); | |
| } | |
| } | |
| function d3_layout_treeShift(node) { | |
| var shift = 0, | |
| change = 0, | |
| children = node.children, | |
| i = children.length, | |
| child; | |
| while (--i >= 0) { | |
| child = children[i]._tree; | |
| child.prelim += shift; | |
| child.mod += shift; | |
| shift += child.shift + (change += child.change); | |
| } | |
| } | |
| function d3_layout_treeMove(ancestor, node, shift) { | |
| ancestor = ancestor._tree; | |
| node = node._tree; | |
| var change = shift / (node.number - ancestor.number); | |
| ancestor.change += change; | |
| node.change -= change; | |
| node.shift += shift; | |
| node.prelim += shift; | |
| node.mod += shift; | |
| } | |
| function d3_layout_treeAncestor(vim, node, ancestor) { | |
| return vim._tree.ancestor.parent == node.parent | |
| ? vim._tree.ancestor | |
| : ancestor; | |
| } | |
| // Squarified Treemaps by Mark Bruls, Kees Huizing, and Jarke J. van Wijk | |
| // Modified to support a target aspect ratio by Jeff Heer | |
| d3.layout.treemap = function() { | |
| var hierarchy = d3.layout.hierarchy(), | |
| round = Math.round, | |
| size = [1, 1], // width, height | |
| padding = null, | |
| pad = d3_layout_treemapPadNull, | |
| sticky = false, | |
| stickies, | |
| ratio = 0.5 * (1 + Math.sqrt(5)); // golden ratio | |
| // Compute the area for each child based on value & scale. | |
| function scale(children, k) { | |
| var i = -1, | |
| n = children.length, | |
| child, | |
| area; | |
| while (++i < n) { | |
| area = (child = children[i]).value * (k < 0 ? 0 : k); | |
| child.area = isNaN(area) || area <= 0 ? 0 : area; | |
| } | |
| } | |
| // Recursively arranges the specified node's children into squarified rows. | |
| function squarify(node) { | |
| var children = node.children; | |
| if (children && children.length) { | |
| var rect = pad(node), | |
| row = [], | |
| remaining = children.slice(), // copy-on-write | |
| child, | |
| best = Infinity, // the best row score so far | |
| score, // the current row score | |
| u = Math.min(rect.dx, rect.dy), // initial orientation | |
| n; | |
| scale(remaining, rect.dx * rect.dy / node.value); | |
| row.area = 0; | |
| while ((n = remaining.length) > 0) { | |
| row.push(child = remaining[n - 1]); | |
| row.area += child.area; | |
| if ((score = worst(row, u)) <= best) { // continue with this orientation | |
| remaining.pop(); | |
| best = score; | |
| } else { // abort, and try a different orientation | |
| row.area -= row.pop().area; | |
| position(row, u, rect, false); | |
| u = Math.min(rect.dx, rect.dy); | |
| row.length = row.area = 0; | |
| best = Infinity; | |
| } | |
| } | |
| if (row.length) { | |
| position(row, u, rect, true); | |
| row.length = row.area = 0; | |
| } | |
| children.forEach(squarify); | |
| } | |
| } | |
| // Recursively resizes the specified node's children into existing rows. | |
| // Preserves the existing layout! | |
| function stickify(node) { | |
| var children = node.children; | |
| if (children && children.length) { | |
| var rect = pad(node), | |
| remaining = children.slice(), // copy-on-write | |
| child, | |
| row = []; | |
| scale(remaining, rect.dx * rect.dy / node.value); | |
| row.area = 0; | |
| while (child = remaining.pop()) { | |
| row.push(child); | |
| row.area += child.area; | |
| if (child.z != null) { | |
| position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length); | |
| row.length = row.area = 0; | |
| } | |
| } | |
| children.forEach(stickify); | |
| } | |
| } | |
| // Computes the score for the specified row, as the worst aspect ratio. | |
| function worst(row, u) { | |
| var s = row.area, | |
| r, | |
| rmax = 0, | |
| rmin = Infinity, | |
| i = -1, | |
| n = row.length; | |
| while (++i < n) { | |
| if (!(r = row[i].area)) continue; | |
| if (r < rmin) rmin = r; | |
| if (r > rmax) rmax = r; | |
| } | |
| s *= s; | |
| u *= u; | |
| return s | |
| ? Math.max((u * rmax * ratio) / s, s / (u * rmin * ratio)) | |
| : Infinity; | |
| } | |
| // Positions the specified row of nodes. Modifies `rect`. | |
| function position(row, u, rect, flush) { | |
| var i = -1, | |
| n = row.length, | |
| x = rect.x, | |
| y = rect.y, | |
| v = u ? round(row.area / u) : 0, | |
| o; | |
| if (u == rect.dx) { // horizontal subdivision | |
| if (flush || v > rect.dy) v = v ? rect.dy : 0; // over+underflow | |
| while (++i < n) { | |
| o = row[i]; | |
| o.x = x; | |
| o.y = y; | |
| o.dy = v; | |
| x += o.dx = v ? round(o.area / v) : 0; | |
| } | |
| o.z = true; | |
| o.dx += rect.x + rect.dx - x; // rounding error | |
| rect.y += v; | |
| rect.dy -= v; | |
| } else { // vertical subdivision | |
| if (flush || v > rect.dx) v = v ? rect.dx : 0; // over+underflow | |
| while (++i < n) { | |
| o = row[i]; | |
| o.x = x; | |
| o.y = y; | |
| o.dx = v; | |
| y += o.dy = v ? round(o.area / v) : 0; | |
| } | |
| o.z = false; | |
| o.dy += rect.y + rect.dy - y; // rounding error | |
| rect.x += v; | |
| rect.dx -= v; | |
| } | |
| } | |
| function treemap(d) { | |
| var nodes = stickies || hierarchy(d), | |
| root = nodes[0]; | |
| root.x = 0; | |
| root.y = 0; | |
| root.dx = size[0]; | |
| root.dy = size[1]; | |
| if (stickies) hierarchy.revalue(root); | |
| scale([root], root.dx * root.dy / root.value); | |
| (stickies ? stickify : squarify)(root); | |
| if (sticky) stickies = nodes; | |
| return nodes; | |
| } | |
| treemap.size = function(x) { | |
| if (!arguments.length) return size; | |
| size = x; | |
| return treemap; | |
| }; | |
| treemap.padding = function(x) { | |
| if (!arguments.length) return padding; | |
| function padFunction(node) { | |
| var p = x.call(treemap, node, node.depth); | |
| return p == null | |
| ? d3_layout_treemapPadNull(node) | |
| : d3_layout_treemapPad(node, typeof p === "number" ? [p, p, p, p] : p); | |
| } | |
| function padConstant(node) { | |
| return d3_layout_treemapPad(node, x); | |
| } | |
| var type; | |
| pad = (padding = x) == null ? d3_layout_treemapPadNull | |
| : (type = typeof x) === "function" ? padFunction | |
| : type === "number" ? (x = [x, x, x, x], padConstant) | |
| : padConstant; | |
| return treemap; | |
| }; | |
| treemap.round = function(x) { | |
| if (!arguments.length) return round != Number; | |
| round = x ? Math.round : Number; | |
| return treemap; | |
| }; | |
| treemap.sticky = function(x) { | |
| if (!arguments.length) return sticky; | |
| sticky = x; | |
| stickies = null; | |
| return treemap; | |
| }; | |
| treemap.ratio = function(x) { | |
| if (!arguments.length) return ratio; | |
| ratio = x; | |
| return treemap; | |
| }; | |
| return d3_layout_hierarchyRebind(treemap, hierarchy); | |
| }; | |
| function d3_layout_treemapPadNull(node) { | |
| return {x: node.x, y: node.y, dx: node.dx, dy: node.dy}; | |
| } | |
| function d3_layout_treemapPad(node, padding) { | |
| var x = node.x + padding[3], | |
| y = node.y + padding[0], | |
| dx = node.dx - padding[1] - padding[3], | |
| dy = node.dy - padding[0] - padding[2]; | |
| if (dx < 0) { x += dx / 2; dx = 0; } | |
| if (dy < 0) { y += dy / 2; dy = 0; } | |
| return {x: x, y: y, dx: dx, dy: dy}; | |
| } | |
| })(); |
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| <html> | |
| <head> | |
| <title>2-Way Tree</title> | |
| <link rel="stylesheet" href="asset/css/d3/d3-collapsible-tree.css"> | |
| <script type="text/javascript" src="asset/js/jquery-2.1.1.min.js"></script> | |
| <script type="text/javascript" src="asset/js/d3/d3.min.js"></script> | |
| <script type="text/javascript" src="asset/js/d3/d3.layout.js"></script> | |
| </head> | |
| <body> | |
| <h1 align="center">2-Way Tree</h1> | |
| <div id="categoryHierarchy"></div> | |
| <script type="text/javascript" src="asset/js/d3/concept-graph.js"></script> | |
| <script> | |
| $(document).ready(function(event) { | |
| var tree = CollapsibleTree("#categoryHierarchy"); | |
| tree.init('sample.json'); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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| { | |
| "name": "Airlines", | |
| "parents": [ | |
| { | |
| "name": "Aviation", | |
| "isparent": true | |
| }, | |
| { | |
| "name": "Transparent_companies", | |
| "isparent": true | |
| }, | |
| { | |
| "name": "Transport_operators", | |
| "isparent": true | |
| } | |
| ], | |
| "children": [ | |
| { | |
| "name": "Airline_alliances", | |
| "isparent": false | |
| }, | |
| { | |
| "name": "Airlines_by_continent", | |
| "isparent": false | |
| }, | |
| { | |
| "name": "Airlines_by_type", | |
| "isparent": false | |
| }, | |
| { | |
| "name": "Defunct_airlines", | |
| "isparent": false | |
| } | |
| ] | |
| } |
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