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A demonstration of appending data to DOM elements based on pre-existing ids
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .circle { | |
| fill: steelblue; | |
| } | |
| </style> | |
| <div class="d3" id="foo"></div> | |
| <div class="d3" id="bar"></div> | |
| <div class="d3" id="baz"></div> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var data = [{name: 'bar', value: 5}, {name: 'foo', value: 10}, {name: 'baz', value: 15}]; | |
| var margin = {top: 5, right: 5, bottom: 5, left: 5}, | |
| width = 300 - margin.left - margin.right, | |
| height = 200 - margin.top - margin.bottom; | |
| d3.selectAll('.d3').append('svg') | |
| .attr('width', width + margin.left + margin.right) | |
| .attr('height', height + margin.top + margin.bottom) | |
| .append('g') | |
| .attr('transform', 'translate(' + margin.left + ',' + margin.top + ')') | |
| .attr('class','group') | |
| .attr('id', function(){ | |
| return this.parentNode.parentNode.id; | |
| }); | |
| d3.selectAll('.group').each(function() { this.__data__ = { name: this.id};}); | |
| d3.selectAll('.group') | |
| .data(data, function(d){ return d.name; }) | |
| .append('circle') | |
| .attr('class','circle') | |
| .attr('cx', 50) | |
| .attr('cy', 50) | |
| .attr('r', function(d){ return d.value; }); | |
| </script> |
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