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Drawing Chemical Structure
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script type="text/javascript" src="http://mbostock.github.com/d3/d3.v2.js"></script> | |
| <style type="text/css"> | |
| .link { | |
| fill: steelblue; | |
| stroke: lightgray; | |
| stroke-width: 2px; | |
| } | |
| .node circle { | |
| stroke: solid black 1px; | |
| } | |
| .node text { | |
| pointer-events: none; | |
| font: 14px sans-serif; | |
| color: blue; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var w=960, | |
| h=500, | |
| fill = d3.scale.category20(), | |
| nodes = [ | |
| {"atom":"C", "size":12}, | |
| {"atom":"C", "size":12}, | |
| {"atom":"C", "size":12}, | |
| {"atom":"N", "size":7}, | |
| {"atom":"H", "size":1}, | |
| {"atom":"O", "size":16}, | |
| {"atom":"O", "size":16}, | |
| {"atom":"H", "size":1}, | |
| {"atom":"H", "size":1}, | |
| {"atom":"H", "size":1}, | |
| {"atom":"H", "size":1}, | |
| {"atom":"H", "size":1}, | |
| {"atom":"H", "size":1} | |
| ], | |
| links = [ | |
| {"source":0, "target":1}, | |
| {"source":1, "target":2}, | |
| {"source":1, "target":3}, | |
| {"source":2, "target":5}, | |
| {"source":2, "target":6}, | |
| {"source":1, "target":4}, | |
| {"source":3, "target":10}, | |
| {"source":3, "target":11}, | |
| {"source":0, "target":7}, | |
| {"source":0, "target":8}, | |
| {"source":0, "target":9}, | |
| {"source":5, "target":12} | |
| ], | |
| vis = d3.select("body").append("svg") | |
| .attr("width", w) | |
| .attr("height", h), | |
| force = d3.layout.force() | |
| .nodes(nodes) | |
| .links(links) | |
| .charge(-1500) | |
| .friction(0.8) | |
| .gravity(0.5) | |
| .size([w,h]) | |
| .start(), | |
| link = vis.selectAll("line") | |
| .data(links) | |
| .enter() | |
| .append("line") | |
| .attr("class","link"), | |
| node = vis.selectAll(".node") | |
| .data(nodes) | |
| .enter() | |
| .append("g") | |
| .attr("class","node") | |
| .call(force.drag); | |
| node.append("circle") | |
| .attr("r", function(d) { | |
| return Math.pow(40*d.size,1/3); | |
| }) | |
| .attr("fill",function(d) { | |
| return fill(d.size); | |
| }) | |
| .attr("stroke","black") | |
| .attr("stroke-width",2); | |
| node.append("text") | |
| .attr("dx",function(d) { | |
| return Math.pow(40*d.size,1/3)+1; | |
| }) | |
| .attr("dy",".35em") | |
| .text(function(d) {return d.atom;}); | |
| force.on("tick", function() { | |
| link.attr("x1", function(d) { return d.source.x; }) | |
| .attr("y1", function(d) { return d.source.y; }) | |
| .attr("x2", function(d) { return d.target.x; }) | |
| .attr("y2", function(d) { return d.target.y; }); | |
| node.attr("transform", function(d) { | |
| return "translate(" + d.x + "," + d.y + ")"; | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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