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December 19, 2015 01:19
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <title>Click show hide</title> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <style type="text/css"> | |
| circle {fill: #000; stroke: #000;} | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var svg = d3.select("body").append("svg") | |
| .attr({width:600, height:600}) ; | |
| svg.append("rect") // "Hide" button | |
| .attr({x:0, width:60, height:40, fill:"red" }) | |
| .on("click", function() { | |
| // Hide all circles of class "dot" | |
| d3.selectAll(".dot").attr("visibility", "hidden") | |
| }) ; | |
| svg.append("rect") // "Show" button | |
| .attr({x:70, width:60, height:40, fill:"green" }) | |
| .on("click", function() { | |
| // Show all circles of class "dot" | |
| d3.selectAll(".dot").attr("visibility", "") | |
| }) ; | |
| var g0 = svg.append("g") // Group for dot grid | |
| .attr("transform", "translate(4 50)") ; | |
| var data = []; // Create coordinates for dots | |
| for(i = 0; i < 60; i++) { | |
| for (j = 0; j < 50; j++) { | |
| data.push( {cx:i*10, cy:j*10} ) ; | |
| } | |
| } | |
| g0.selectAll("circle") // Draw the dots | |
| .data(data) .enter().append("circle") | |
| .attr("class", "dot") .attr("r", 2) | |
| .attr("cx", function(d) {return d.cx}) | |
| .attr("cy", function(d) {return d.cy}) ; | |
| </script> | |
| </body> | |
| </html> |
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