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<!DOCTYPE html> |
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<html lang="en"> |
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<head> |
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<meta charset="utf-8"> |
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<title>Tree Explorer</title> |
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<style> |
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body { |
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display: flex; |
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flex-direction: row; |
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} |
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.node rect { |
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fill: #fff; |
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stroke: steelblue; |
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stroke-width: 1.5px; |
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} |
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.node text { |
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font: 10px sans-serif; |
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} |
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.link { |
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fill: none; |
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stroke: #ccc; |
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stroke-width: 1.5px; |
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} |
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</style> |
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</head> |
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<body> |
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<!-- load jquery --> |
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<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script> |
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<!-- load the d3.js library --> |
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<script src="http://d3js.org/d3.v3.min.js"></script> |
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<script> |
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var margin = {top: 20, right: 120, bottom: 100, left: 120}, |
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width = 1100 - margin.right - margin.left, |
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height = 800 - margin.top - margin.bottom; |
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// no projection because we don't transform the coordinates |
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var diagonal = d3.svg.diagonal(); |
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var op_list = d3.select("body").append("div").append("ul") |
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.attr("class", "op_list"); |
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var tree = d3.layout.tree() |
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.size([width, height]); |
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var tree_log = []; |
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d3.json("/tree_log.json", function(error, log) { |
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if (error) throw error; |
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tree_log = log; |
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root = log[log.length - 1][1]; |
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update(root); |
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}); |
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function op_click(op) { |
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console.log(op); |
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update(op[1]); |
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} |
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function update(source) { |
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d3.select("div svg").remove(); |
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var svg = d3.select("body").append("div").append("svg") |
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.attr("width", width + margin.right + margin.left) |
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.attr("height", height + margin.top + margin.bottom) |
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.append("g") |
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
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op_list.selectAll("li") |
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.data(tree_log) |
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.enter() |
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.append("li") |
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.on("mouseover", op_click) |
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.text(function(d) {return d[0]}); |
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var nodes = tree.nodes(source).reverse(), |
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links = tree.links(nodes); |
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var node = svg.selectAll("g.node").data(nodes); |
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var nodeEnter = node.enter().append("g") |
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.attr("class", "node") |
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.attr("transform", function (d) { return "translate(" + d.x + "," + d.y + ")"; }); |
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nodeEnter.append("circle") |
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.attr("r", 5); |
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nodeEnter.append("text") |
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.attr("x", function(d) { return d.children || d._children ? -10 : 10; }) |
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.attr("dy", ".35em") |
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.attr("text-anchor", function(d) { return d.children || d._children ? "end" : "start"; }) |
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.text(function(d) {return typeof d.value != "undefined" ? ( "value: " + d.value + ", lh: " + ( d.left_height || 0 ) + ", rh: " + ( d.right_height || 0 ) ) : ""; }) |
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.style("fill-opacity", 1); |
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var link = svg.selectAll("path.link").data(links); |
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link.enter() |
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.append("path") |
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.attr("class", "link") |
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.attr("d", diagonal); |
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} |
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</script> |
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</body> |
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</html> |