Created
July 23, 2017 00:24
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Binary Tree : D3 + Vue.js
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| <!DOCTYPE html> | |
| <head> | |
| <title>Welcome to Vue</title> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src="https://unpkg.com/vue"></script> | |
| <style> | |
| body { | |
| width: 100%; | |
| height: 100%; | |
| font-family: monospace; | |
| } | |
| .controls { | |
| position: fixed; | |
| top: 16px; | |
| left: 16px; | |
| background: #f8f8f8; | |
| padding: 0.5rem; | |
| display: flex; | |
| flex-direction: column; | |
| } | |
| .svg-container { | |
| display: table; | |
| } | |
| #svgId { | |
| background-color: #fff; | |
| } | |
| .controls>*+* { | |
| margin-top: 1rem; | |
| } | |
| label { | |
| display: block; | |
| } | |
| .node { | |
| opacity: 1; | |
| } | |
| .node circle { | |
| fill: #999; | |
| cursor: pointer; | |
| } | |
| .node text { | |
| font: 10px sans-serif; | |
| cursor: pointer; | |
| } | |
| .node--internal circle { | |
| fill: #555; | |
| } | |
| .node--internal text { | |
| text-shadow: 0 1px 0 #fff, 0 -1px 0 #fff, 1px 0 0 #fff, -1px 0 0 #fff; | |
| } | |
| .link { | |
| fill: none; | |
| stroke: #555; | |
| stroke-opacity: 0.4; | |
| stroke-width: 1.5px; | |
| stroke-dasharray: 1000; | |
| } | |
| .node:hover { | |
| pointer-events: all; | |
| stroke: #ff0000; | |
| } | |
| .node.highlight { | |
| fill: red; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="app"> | |
| <div class="controls"> | |
| <div> | |
| <label>Adjust width</label> | |
| <input type="range" v-model="settings.width" min="0" max="100" /> | |
| </div> | |
| <div> | |
| <label>Stroke color</label> | |
| <input type="color" v-model="settings.strokeColor" /> | |
| </div> | |
| <div> | |
| Selected: {{ selected }} | |
| </div> | |
| </div> | |
| <div class="svg-container" :style="{width: settings.width + '%'}"> | |
| <svg id="svgId" viewBox="0 0 960 600" preserveAspectRatio="xMinYMin meet"> | |
| <transition-group tag="g" name="line"> | |
| <path v-for="link in links" class="link" v-bind:key="link.id" v-bind:d="link.d" v-bind:style="link.style"></path> | |
| </transition-group> | |
| <transition-group tag="g" name="list"> | |
| <g class="node" v-on:click="select(index, node)" v-for="(node, index) in nodes" v-bind:key="node.id" v-bind:style="node.style"> | |
| <circle v-bind:r="node.r" v-bind:style="{'fill': index == selected ? '#ff0000' : '#bfbfbf'}"></circle> | |
| <text v-bind:dx="node.textpos.x" v-bind:dy="node.textpos.y" v-bind:style="node.textStyle">{{ node.text }}</text> | |
| </g> | |
| </transition-group> | |
| </svg> | |
| </div> | |
| </div> | |
| <script type="text/javascript"> | |
| new Vue({ | |
| el: "#app", | |
| data: function () { | |
| return { | |
| csv: null, | |
| selected: null, | |
| settings: { | |
| strokeColor: "#29B5FF", | |
| width: 100 | |
| } | |
| }; | |
| }, | |
| mounted: function () { | |
| var that = this; | |
| d3.csv("tree-data.csv", | |
| function (error, data) { | |
| if (error) throw error; | |
| that.csv = data; | |
| } | |
| ); | |
| }, | |
| computed: { | |
| root: function () { | |
| if (this.csv) { | |
| var root = d3.stratify() | |
| .id(function (d) { return d.node; }) | |
| .parentId(function (d) { return d.parent; }) | |
| (this.csv); | |
| return this.tree(root); | |
| } | |
| }, | |
| tree: function () { | |
| return d3 | |
| .tree() | |
| .size([600, this.settings.width - 300]); | |
| }, | |
| nodes: function () { | |
| var that = this; | |
| if (this.root) { | |
| return this.root.descendants().map(function (d) { | |
| let x = (200 + d.x) + "px"; | |
| let y = parseInt(-1 * d.y + 30) + "px"; | |
| return { | |
| id: d.id, | |
| r: 2.5, | |
| text: d.id, | |
| style: { | |
| transform: "translate(" + x + "," + y + ")" | |
| }, | |
| textpos: { | |
| x: d.children ? -8 : 8, | |
| y: 3 | |
| }, | |
| textStyle: { | |
| textAnchor: d.children ? "end" : "start" | |
| } | |
| }; | |
| }); | |
| } | |
| }, | |
| links: function () { | |
| let that = this; | |
| if (this.root) { | |
| return this.root.descendants().slice(1).map(function (d) { | |
| let x = d.x + 200, parent_x = d.parent.x + 200; | |
| let y = parseInt(-1 * d.y + 30); | |
| let parent_y = parseInt(-1 * d.parent.y + 30); | |
| return { | |
| id: d.id, | |
| d: "M" + x + "," + y + "L" + parent_x + "," + parent_y, | |
| style: { | |
| stroke: that.settings.strokeColor | |
| } | |
| }; | |
| }); | |
| } | |
| } | |
| }, | |
| methods: { | |
| select: function (index, node) { | |
| this.selected = index; | |
| } | |
| } | |
| }); | |
| </script> | |
| </body> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| node | parent | |
|---|---|---|
| A | ||
| B | A | |
| C | A | |
| D | B | |
| E | B | |
| F | C | |
| G | C | |
| H | D | |
| I | D | |
| J | E | |
| K | E | |
| L | F | |
| M | F | |
| N | G | |
| O | G | |
| P | H | |
| Q | H | |
| R | I | |
| S | I | |
| T | J | |
| U | J | |
| V | K | |
| W | K | |
| X | L | |
| Y | L | |
| Z | M |
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