This is an alternative way to move grouped data. Alternative to here.
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February 17, 2017 14:02
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d3.drag grouped elements in v4
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .active { | |
| stroke: #000; | |
| stroke-width: 2px; | |
| } | |
| .rect { | |
| pointer-events: all; | |
| stroke: none; | |
| stroke-width: 40px; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var margin = {top: 10, right: 10, bottom: 30, left: 10}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var rectangles = d3.range(10).map(function() { | |
| return { | |
| x: Math.round(Math.random() * (width)), | |
| y: Math.round(Math.random() * (height)) | |
| }; | |
| }); | |
| var color = d3.scaleOrdinal(d3.schemeCategory20); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom); | |
| var group = svg.selectAll('g') | |
| .data(rectangles) | |
| .enter().append("g") | |
| .attr("transform",function(d) { | |
| return "translate(" + (margin.left + d.x) + "," + (margin.top + d.y) + ")" | |
| }) | |
| .call(d3.drag() | |
| .on("start", dragstarted) | |
| .on("drag", dragged) | |
| .on("end", dragended)); | |
| group.append("rect") | |
| .attr("height", 60) | |
| .attr("width", 30) | |
| .style("fill", function(d, i) { return color(i); }); | |
| group.append("text") | |
| .attr("text-anchor", "start") | |
| .style("fill", "steelblue") | |
| .text("Close"); | |
| function dragstarted(d) { | |
| d._drag = { | |
| distance:0, | |
| threshold:2, | |
| initiated: false | |
| }; | |
| } | |
| function dragged(d) { | |
| if (!d._drag.initiated) { | |
| d._drag.initiated = true; | |
| d3.select(this).raise().classed("active", true); | |
| } | |
| d._drag.distance += d3.event.dx * d3.event.dx + d3.event.dy * d3.event.dy; | |
| d.x = d3.event.x; | |
| d.y = d3.event.y; | |
| d3.select(this).attr('transform', 'translate('+[d.x,d.y]+')'); | |
| } | |
| function dragended(d) { | |
| if (d._drag.distance < d._drag.threshold) { | |
| d3.select(window).on('click.drag', null); | |
| return; | |
| } | |
| d3.select(this).classed("active", false); | |
| } | |
| </script> | |
| </body> |
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