Like to display some info as tooltip from the JSON for each node. Read from the info attribute.
Created
June 19, 2012 08:16
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Simple static tree with tooltips
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Simple Tree Demo</title> | |
| <script src="http://d3js.org/d3.v2.js"></script> | |
| <style> | |
| .link { | |
| fill: none; | |
| stroke: #ccc; | |
| stroke-width: 1.5px; | |
| } | |
| div.tooltip { | |
| position: absolute; | |
| text-align: center; | |
| width: 100px; | |
| height: 10px; | |
| padding: 8px; | |
| font: 10px sans-serif; | |
| background: #ffff99; | |
| border: solid 1px #aaa; | |
| border-radius: 8px; | |
| pointer-events: none; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="viz"></div> | |
| <script type="text/javascript"> | |
| //JSON object with the data | |
| var treeData = {"name" : "Root", "info" : "1", "children" : [ | |
| {"name" : "A", "info" : "2" }, | |
| {"name" : "B", "info" : "3" }, | |
| {"name" : "C", "info" : "4", "children": [ | |
| {"name" : "C1", "info" : "5" }, | |
| {"name" : "C2", "info" : "6" } | |
| ]} | |
| ]}; | |
| // Create a svg canvas | |
| var vis = d3.select("#viz").append("svg:svg") | |
| .attr("width", 400) | |
| .attr("height", 300) | |
| .append("svg:g") | |
| .attr("transform", "translate(40, 30)"); // shift everything to the right | |
| // Add tooltip div | |
| var div = d3.select("body").append("div") | |
| .attr("class", "tooltip") | |
| .style("opacity", 1e-6); | |
| // Create a tree "canvas" | |
| var tree = d3.layout.tree() | |
| .size([300,150]); | |
| var diagonal = d3.svg.diagonal(); | |
| // Preparing the data for the tree layout, convert data into an array of nodes | |
| var nodes = tree.nodes(treeData); | |
| // Create an array with all the links | |
| var links = tree.links(nodes); | |
| console.log("Raw:") | |
| console.log(treeData) | |
| console.log("Nodes:") | |
| console.log(nodes) | |
| console.log("Links:" ) | |
| console.log(links) | |
| // Show me a link in raw and its path version | |
| console.log(links[0]) | |
| console.log(diagonal(links[0])) | |
| var link = vis.selectAll("pathlink") | |
| .data(links) | |
| .enter().append("svg:path") | |
| .attr("class", "link") | |
| .attr("d", diagonal) | |
| var node = vis.selectAll("g.node") | |
| .data(nodes) | |
| .enter().append("svg:g") | |
| .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; }) | |
| // Add the dot at every node | |
| node.append("svg:circle") | |
| .on("mouseover", mouseover) | |
| .on("mousemove", function(d){mousemove(d);}) | |
| .on("mouseout", mouseout) | |
| .attr("fill","red") | |
| .attr("r", 5.5); | |
| node.append("svg:text") | |
| .attr("dx", 8) | |
| .attr("dy", 3) | |
| .text(function(d) { return d.name; }) | |
| function mouseover() { | |
| div.transition() | |
| .duration(300) | |
| .style("opacity", 1); | |
| } | |
| function mousemove(d) { | |
| div | |
| .text("Info about " + d.name + ":" + d.info) | |
| .style("left", (d3.event.pageX ) + "px") | |
| .style("top", (d3.event.pageY) + "px"); | |
| } | |
| function mouseout() { | |
| div.transition() | |
| .duration(300) | |
| .style("opacity", 1e-6); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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