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Simple Drag Demo
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| var circle_data = [ | |
| {x:20, y:60}, | |
| {x: 45, y:56}, | |
| ]; | |
| var square_data = [ | |
| {x:100, y:100, width:80, height:80}, | |
| {x:150, y:150, width:80, height:80}, | |
| ]; |
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| svg { | |
| background-color: #111; | |
| } | |
| circle, .circle { | |
| fill: #b36; | |
| fill-opacity: 0.8; | |
| } | |
| #square, .square { | |
| fill: #679; | |
| fill-opacity: 0.8; | |
| } | |
| #report { | |
| padding: 5px 8px 5px 8px; | |
| background-color: #333; | |
| color:white; | |
| font: 14pt sans-serif; | |
| position:absolute; | |
| left: 85px; | |
| top: 70px; | |
| } |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <title>Simple Drag Demo</title> | |
| <script src="http://d3js.org/d3.v2.js"></script> | |
| <script src="data.js"></script> | |
| <link type="text/css" href="drag.css" rel="stylesheet"> | |
| </head> | |
| <body> | |
| <svg width="960" height="500"> | |
| <defs></defs> | |
| <g id="g0" transform="translate(100 150)"></g> | |
| </svg> | |
| <div id="report"> | |
| x, y | |
| </div> | |
| <script> | |
| var svg = d3.select("svg"), | |
| defs = d3.select("defs"), | |
| g0 = d3.select("#g0"); | |
| var squares = g0.selectAll("rect").data(square_data) | |
| .enter().append("rect") | |
| .attr("class", "square") | |
| .attr("width", function(d) { return d.width }) | |
| .attr("height", function(d) { return d.height }) | |
| .attr("transform", function(d){ return 'translate('+ [d.x, d.y] + ')' }) | |
| var circles = g0.selectAll("circle").data(circle_data) | |
| .enter().append("circle") | |
| .attr("r", 20) | |
| .attr("transform", function(d) { return 'translate('+ [d.x, d.y] + ')' }) | |
| var drag = d3.behavior.drag() | |
| .on("drag", function(d, i) { | |
| var dx = d3.event.dx, dy = d3.event.dy; | |
| d.x += dx; | |
| d.y += dy; | |
| d3.select(this).attr("transform", "translate(" + [d.x, d.y] + ")" ); | |
| d3.select("#report") .text("x: " + (d.x) + ", y: " + (d.y)); | |
| } | |
| ) | |
| circles.call(drag); | |
| squares.call(drag); | |
| </script> | |
| </body> | |
| </html> |
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