Functioning example of nesting elements within elements in D3 using transformations on the parent element and separate enter() for the array containing the child elements.
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December 17, 2015 22:59
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Working D3 nested selection
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <div id="vis"></div> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var parentElement = [ | |
| {name: "Path 1", startX: 25, startY: 75, segments: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]}, | |
| {name: "Path 2", startX: 25, startY: 125, segments: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]} | |
| ]; | |
| var width = 500, | |
| height = 200, | |
| lineLength = 20; | |
| var svg = d3.select("#vis").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var g = svg.selectAll(".parent") | |
| .data(parentElement); | |
| var gEnter = g.enter() | |
| .append("g") | |
| .attr("class", "parent") | |
| .attr('transform', function(d) { return 'translate(' + d.startX + ',' + d.startY + ')'; }) | |
| .style('fill', 'none') | |
| .style('stroke', '#232323'); | |
| gEnter.selectAll(".child") | |
| .data(function(d) { | |
| console.log(d.segments); | |
| return d.segments; }) | |
| .enter() | |
| .append("line") | |
| .attr('class', 'child') | |
| .attr('x1', function(d,i) { return lineLength * d; }) | |
| .attr('y1', 0) | |
| .attr('x2', function(d,i) { return lineLength * (1 + d); }) | |
| .attr('y2', 0); | |
| </script> |
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