This example uses Vue.js components to create a custom tag for a simple matrix diagram.
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February 1, 2017 10:54
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Vue.js Matrix Component
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| Vue.component 'matrix', | |
| props: | |
| data: | |
| type: Array | |
| required: true | |
| padding: | |
| type: Number | |
| default: 1 | |
| cellsize: | |
| type: Number | |
| default: 20 | |
| template: ''' | |
| <svg :width="ncols*cellsize" :height="nrows*cellsize" class="matrix"> | |
| <g v-for="(row,i) in data"> | |
| <rect | |
| v-for="(cell,j) in row" | |
| class="cell" | |
| :x="j*cellsize + cellsize/2 - scale(cell)/2" | |
| :y="i*cellsize + cellsize/2 - scale(cell)/2" | |
| :width="scale(cell)" | |
| :height="scale(cell)" | |
| /> | |
| </g> | |
| </svg> | |
| ''' | |
| computed: | |
| max: () -> d3.max @data, (r) -> d3.max r | |
| nrows: () -> @data.length | |
| ncols: () -> if @data.length > 0 then @data[0].length else 0 | |
| scale: () -> | |
| d3.scaleSqrt() | |
| .domain [0, @max] | |
| .range [0, Math.max(0,@cellsize-@padding)] | |
| app = new Vue | |
| el: '#app' | |
| data: | |
| matrix1: [ | |
| [1,2,3], | |
| [4,5,6], | |
| [9,9,9] | |
| ], | |
| matrix2: [ | |
| [12,24,35], | |
| [45,15,60], | |
| [60,60,60] | |
| ] | |
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| body, html { | |
| padding: 0; | |
| margin: 0; | |
| height: 100%; | |
| } | |
| .matrix { | |
| margin: 20px; | |
| } | |
| .cell { | |
| fill: teal; | |
| } |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Vue.js Matrix Component</title> | |
| <link type="text/css" href="index.css" rel="stylesheet"/> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src="https://unpkg.com/vue/dist/vue.js"></script> | |
| </head> | |
| <body> | |
| <div id="app"> | |
| <matrix | |
| v-bind:data="matrix1" | |
| :cellsize="60" | |
| /> | |
| <matrix | |
| v-bind:data="matrix2" | |
| :cellsize="40" | |
| :padding="2" | |
| /> | |
| </div> | |
| <script src="index.js"></script> | |
| </body> | |
| </html> |
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| // Generated by CoffeeScript 1.10.0 | |
| (function() { | |
| var app; | |
| Vue.component('matrix', { | |
| props: { | |
| data: { | |
| type: Array, | |
| required: true | |
| }, | |
| padding: { | |
| type: Number, | |
| "default": 1 | |
| }, | |
| cellsize: { | |
| type: Number, | |
| "default": 20 | |
| } | |
| }, | |
| template: '<svg :width="ncols*cellsize" :height="nrows*cellsize" class="matrix">\n <g v-for="(row,i) in data">\n <rect\n v-for="(cell,j) in row"\n class="cell"\n :x="j*cellsize + cellsize/2 - scale(cell)/2"\n :y="i*cellsize + cellsize/2 - scale(cell)/2"\n :width="scale(cell)"\n :height="scale(cell)"\n />\n </g>\n</svg>', | |
| computed: { | |
| max: function() { | |
| return d3.max(this.data, function(r) { | |
| return d3.max(r); | |
| }); | |
| }, | |
| nrows: function() { | |
| return this.data.length; | |
| }, | |
| ncols: function() { | |
| if (this.data.length > 0) { | |
| return this.data[0].length; | |
| } else { | |
| return 0; | |
| } | |
| }, | |
| scale: function() { | |
| return d3.scaleSqrt().domain([0, this.max]).range([0, Math.max(0, this.cellsize - this.padding)]); | |
| } | |
| } | |
| }); | |
| app = new Vue({ | |
| el: '#app', | |
| data: { | |
| matrix1: [[1, 2, 3], [4, 5, 6], [9, 9, 9]], | |
| matrix2: [[12, 24, 35], [45, 15, 60], [60, 60, 60]] | |
| } | |
| }); | |
| }).call(this); |
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