kopia lustrzana https://github.com/learn-awesome/learndb
TreeMap view WIP
Nilesh
rodzic
052d20b117
commit
02404bb678
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@ -3,7 +3,7 @@
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import * as TailwindUI from "./tailwindui/index"
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import Home from "./Home.svelte"
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import SkillTree from "./SkillTree.svelte"
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import TreeMap from "./TreeMap.svelte"
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import TopicList from "./TopicList.svelte"
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import TopicDetail from "./TopicDetail.svelte"
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import FormatList from "./FormatList.svelte"
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@ -65,8 +65,8 @@
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<svelte:fragment slot="content">
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{#if currentView === "/home" || currentView === "/"}
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<Home/>
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{:else if currentView === "/game"}
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<SkillTree/>
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{:else if currentView === "/map"}
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<TreeMap/>
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{:else if currentView === "/topics"}
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<TopicList {alltopics}/>
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{:else if currentView.startsWith("/topic/")}
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@ -97,6 +97,10 @@
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<LibraryIcon class=" flex-shrink-0 h-6 w-6"/>
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</NavButtonWithLabel>
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<NavButtonWithLabel isActive={currentView === "/map"} target="#/map" label="TreeMap">
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<LibraryIcon class=" flex-shrink-0 h-6 w-6"/>
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</NavButtonWithLabel>
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<NavButtonWithLabel isActive={currentView === "/formats"} target="#/formats" label="Formats">
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<ViewGridIcon class=" flex-shrink-0 h-6 w-6"/>
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</NavButtonWithLabel>
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@ -0,0 +1 @@
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<iframe title="treemap" src="/static/map.html" class="w-full h-screen"></iframe>
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@ -0,0 +1,323 @@
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<!doctype html>
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<html class="no-js" lang="">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<title>TreeMap</title>
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<meta name="description" content="">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<style>
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body {
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margin: 0px;
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padding: 0px;
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font-family: 'Open Sans', sans-serif;
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font-size: 16px;
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}
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#chart {
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margin: 0px;
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padding: 0px;
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background: #E0E7FF;
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}
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text {
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pointer-events: none;
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}
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.grandparent text {
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font-weight: bold;
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}
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rect {
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fill: none;
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stroke: #fff;
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}
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rect.parent,
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.grandparent rect {
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stroke-width: 2px;
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}
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.grandparent rect {
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fill: rgb(232, 255, 0);
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}
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.grandparent:hover rect {
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fill: rgb(202, 225, 0);
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}
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.children rect.parent,
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.grandparent rect {
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cursor: pointer;
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}
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.children rect.parent {
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fill: #99F6E4;
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fill-opacity: .5;
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}
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.children:hover rect.child {
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fill: #D7CBFA;
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}
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</style>
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<link href='http://fonts.googleapis.com/css?family=Open+Sans:300' rel='stylesheet' type='text/css'>
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</head>
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<body>
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<p id="chart"></p>
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<script src="http://d3js.org/d3.v3.min.js"></script>
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<script type="text/javascript">
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function hierarchy(topic_array, parent_id){
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// this is different from TopicMasonryGrid because this needs a specific object structure down to all leafs, not a map with just 2 levels
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// every node needs id, name. Leaf nodes need a value like 100. Non-leafs need a children[].
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// see: https://github.com/mekarpeles/math.mx/blob/master/static/data/simple.json
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const nest = (items, id) =>
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items
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.filter(item => item.parent_id === id)
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.map(item => ({ ...item, children: nest(items, item.name), value: 100 }))
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.map(item => {
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return item.children.length == 0 ?
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{id: item.name, name: item.name.split("/").reverse()[0], value: 100} :
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{id: item.name, name: item.name.split("/").reverse()[0], children: item.children}
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});
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let topnodes = nest(topic_array, ''); // includes childless nodes
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// put childless nodes under misc
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let misc = {id: 'misc', name: 'Misc', children: topnodes.filter(t => t.value).slice(0,15)};
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return {name: "·", children: [...topnodes.filter(t => t.children), misc]};
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}
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d3.json("/learn/topics.json?_shape=array&_size=5000", function(alltopics){
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// console.log({alltopics});
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var root = hierarchy(alltopics, "");
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console.log({root});
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initialize(root);
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accumulate(root);
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layout(root);
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display(root);
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});
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var margin = {top: 20, right: 0, bottom: 0, left: 0},
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wh = browserDimensions(),
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width = wh[0] - (2 * margin.left) - (2*margin.right),
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height = wh[1] - (2 * margin.top - margin.bottom),
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formatNumber = d3.format(",d"),
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transitioning;
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var x = d3.scale.linear()
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.domain([0, width])
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.range([0, width]);
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var y = d3.scale.linear()
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.domain([0, height])
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.range([0, height]);
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var treemap = d3.layout.treemap()
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.children(function(d, depth) { return depth ? null : d._children; })
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.sort(function(a, b) { return a.value - b.value; })
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.ratio(height / width * 0.5 * (1 + Math.sqrt(5)))
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.round(false);
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var svg = d3.select("#chart").append("svg")
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.attr("width", width + margin.left + margin.right)
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.attr("height", height + margin.bottom + margin.top)
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.style("margin-left", -margin.left + "px")
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.style("margin.right", -margin.right + "px")
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.append("g")
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")")
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.style("shape-rendering", "crispEdges");
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var grandparent = svg.append("g")
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.attr("class", "grandparent");
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grandparent.append("rect")
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.attr("y", -margin.top)
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.attr("width", width)
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.attr("height", margin.top);
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grandparent.append("text")
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.attr("x", 6)
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.attr("y", 6 - margin.top)
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.attr("dy", ".75em");
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function initialize(root) {
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root.x = root.y = 0;
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root.dx = width;
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root.dy = height;
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root.depth = 0;
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}
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// Aggregate the values for internal nodes. This is normally done by the
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// treemap layout, but not here because of our custom implementation.
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// We also take a snapshot of the original children (_children) to avoid
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// the children being overwritten when when layout is computed.
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function accumulate(d) {
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return (d._children = d.children)
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? d.value = d.children.reduce(function(p, v) { return p + accumulate(v); }, 0)
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: d.value;
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}
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// Compute the treemap layout recursively such that each group of siblings
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// uses the same size (1×1) rather than the dimensions of the parent cell.
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// This optimizes the layout for the current zoom state. Note that a wrapper
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// object is created for the parent node for each group of siblings so that
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// the parent’s dimensions are not discarded as we recurse. Since each group
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// of sibling was laid out in 1×1, we must rescale to fit using absolute
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// coordinates. This lets us use a viewport to zoom.
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function layout(d) {
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if (d._children) {
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treemap.nodes({_children: d._children});
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d._children.forEach(function(c) {
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c.x = d.x + c.x * d.dx;
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c.y = d.y + c.y * d.dy;
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c.dx *= d.dx;
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c.dy *= d.dy;
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c.parent = d;
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layout(c);
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});
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}
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}
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function display(d) {
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grandparent
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.datum(d.parent)
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.on("click", transition)
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.select("text")
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.text(name(d));
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var g1 = svg.insert("g", ".grandparent")
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.datum(d)
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.attr("class", "depth");
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var g = g1.selectAll("g")
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.data(d._children)
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.enter().append("g");
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g.filter(function(d) { return d._children; })
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.classed("children", true)
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.on("click", transition);
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g.selectAll(".child")
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.data(function(d) { return d._children || [d]; })
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.enter().append("rect")
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.attr("class", "child")
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.call(rect);
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g.append("rect")
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.attr("class", "parent")
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.call(rect)
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.append("title")
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.text(function(d) { return formatNumber(d.value); });
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g.append("text")
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.attr("dy", ".75em")
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.text(function(d) { return d.name.split('{')[0].split('(')[0]
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.split('[')[0]; })
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.call(text);
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function transition(d) {
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if (transitioning || !d) return;
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transitioning = true;
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var g2 = display(d),
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t1 = g1.transition().duration(750),
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t2 = g2.transition().duration(750);
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// Update the domain only after entering new elements.
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x.domain([d.x, d.x + d.dx]);
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y.domain([d.y, d.y + d.dy]);
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// Enable anti-aliasing during the transition.
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svg.style("shape-rendering", null);
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// Draw child nodes on top of parent nodes.
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svg.selectAll(".depth").sort(function(a, b) { return a.depth - b.depth; });
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// Fade-in entering text.
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g2.selectAll("text").style("fill-opacity", 0);
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// Transition to the new view.
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t1.selectAll("text").call(text).style("fill-opacity", 0);
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t2.selectAll("text").call(text).style("fill-opacity", 1);
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t1.selectAll("rect").call(rect);
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t2.selectAll("rect").call(rect);
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// Remove the old node when the transition is finished.
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t1.remove().each("end", function() {
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svg.style("shape-rendering", "crispEdges");
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transitioning = false;
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});
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}
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return g;
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}
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function text(text) {
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text.attr("x", function(d) { return x(d.x) + 10; })
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.attr("y", function(d) { return y(d.y) + 10; });
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}
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function rect(rect) {
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rect.attr("x", function(d) { return x(d.x); })
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.attr("y", function(d) { return y(d.y); })
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.attr("width", function(d) { return x(d.x + d.dx) - x(d.x); })
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.attr("height", function(d) { return y(d.y + d.dy) - y(d.y); });
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}
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function name(d) {
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return d.parent
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? name(d.parent) + " → " + d.name
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: d.name;
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}
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function wrap(text, width) {
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text.each(function() {
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var text = d3.select(this),
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words = text.text().split(/\s+/).reverse(),
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word,
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line = [],
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lineNumber = 0,
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lineHeight = 1.1, // ems
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y = text.attr("y"),
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dy = parseFloat(text.attr("dy")),
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tspan = text.text(null).append("tspan").attr("x", 0).attr("y", y).attr("dy", dy + "em");
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while (word = words.pop()) {
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line.push(word);
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tspan.text(line.join(" "));
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if (tspan.node().getComputedTextLength() > width) {
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line.pop();
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tspan.text(line.join(" "));
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line = [word];
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tspan = text.append("tspan").attr("x", 0).attr("y", y).attr("dy", ++lineNumber * lineHeight + dy + "em").text(word);
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}
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}
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});
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}
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function browserDimensions() {
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var w = 0, h = 0;
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if( typeof( window.innerWidth ) == 'number' ) {
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//Non-IE
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w = window.innerWidth;
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h = window.innerHeight;
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} else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
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//IE 6+ in 'standards compliant mode'
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w = document.documentElement.clientWidth;
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h = document.documentElement.clientHeight;
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} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
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//IE 4 compatible
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w = document.body.clientWidth;
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h = document.body.clientHeight;
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}
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return [w, h];
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}
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</script>
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</body>
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</html>
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