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<!DOCTYPE html> |
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<head> |
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<meta charset="utf-8"> |
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<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> |
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<style> |
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body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } |
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svg { width: 100%; height: 100%; } |
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button { margin: 10px; } |
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</style> |
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</head> |
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<body> |
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<button id="sortIt">Sort It</button> |
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<button id="reset">Reset</button> |
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<script> |
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var margin = {top: 20, right: 10, bottom: 20, left: 10}; |
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var width = 960 - margin.left - margin.right; |
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var height = 500 - margin.top - margin.bottom; |
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var svg = d3.select("body").append("svg") |
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.attr("width", width + margin.left + margin.right) |
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.attr("height", height + margin.top + margin.bottom) |
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.append("g") |
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
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var xSpacing = 10, |
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xMargin = 15, |
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animSpeed = 3000, //3 secs |
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chaosSVG; |
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function layoutLines() { |
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chaosSVG = svg |
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.append("svg") |
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.attr("width", width + margin.left + margin.right ) |
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.attr("height", height + margin.top + margin.bottom) |
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.attr("id","chaosSVG"); |
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var data = [], |
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numOfItems = 75, |
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vizMarginX = 200, |
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vizMarginY = 40, |
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randomTarget = Math.floor(Math.random() * numOfItems), |
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randomMultiple = 350; //The length of the lines can be from 0 - this number |
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//Generate the lines |
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for (var i = 0; i < numOfItems; i++) { |
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var setPoints = {}; |
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setPoints.x1 = Math.floor(Math.random() * randomMultiple); |
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setPoints.y1 = Math.floor(Math.random() * randomMultiple); |
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setPoints.x2 = Math.floor(Math.random() * randomMultiple); |
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setPoints.y2 = Math.floor(Math.random() * randomMultiple); |
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data.push(setPoints); |
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} |
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chaosSVG.selectAll("line").remove(); |
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chaosSVG.selectAll("line") |
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.data(data) |
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.enter() |
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.append("line") |
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.attr("x1", function(d) { return d.x1 + vizMarginX;}) |
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.attr("y1", function(d) { return d.y1 + vizMarginY;}) |
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.attr("x2", function(d) { return d.x2 + vizMarginX;}) |
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.attr("y2", function(d) { return d.y2 + vizMarginY;}) |
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.attr("stroke-width", function(d,i) { |
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if (i == randomTarget) { |
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return 3; |
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} else { |
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return 2; |
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} |
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}) |
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.attr("stroke", function(d,i) { |
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if (i == randomTarget) { |
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return "red"; |
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} else { |
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return "black"; |
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} |
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}) |
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chaosSVG |
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.append("text") |
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.attr("id","chaosText") |
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.attr("x", 80) |
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.attr("y", height + 30) |
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.style("font-weight","bold") |
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.style("font-style","sans-serif") |
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.style("font-size", 26) |
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.style("fill","blue") |
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.text("Needle in a Haystack"); |
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d3.select("#sortIt") |
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.on("click", function() { |
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d3.select("body").selectAll("line") |
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.transition() |
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.duration(animSpeed) |
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.attr("x1", function(d,i) { return (i * xSpacing) + xMargin; }) |
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.attr("y1", function(d) { return height;}) |
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.attr("x2", function(d,i) { return (i * xSpacing) + xMargin;}) |
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.attr("y2", function(d) { |
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console.log("What"); |
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var factor = Math.floor(Math.sqrt(Math.pow(d.x2 - d.x1,2) + Math.pow(d.y2 - d.y1,2))); |
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d.lineLength = factor; |
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return height - factor; }); |
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//Call after the initial animation is complete. |
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setTimeout(function() { |
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sortIt(); |
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}, animSpeed); |
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}); |
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d3.select("#reset") |
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.on("click", function() { |
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d3.select("#chaosSVG").remove(); |
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layoutLines(); |
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}); |
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}; |
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(function() { |
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layoutLines(); |
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})(); |
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//Sort the lines by length |
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function sortIt() { |
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chaosSVG |
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.select("#chaosText") |
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.transition() |
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.duration(1000) |
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.text("Find what you are looking for"); |
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chaosSVG.selectAll("line") |
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.sort(function(a,b) { |
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return d3.ascending(a.lineLength,b.lineLength); |
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}) |
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.transition() |
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.duration(2000) |
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.attr("x1", function(d,i) { return ((i + 2) * xSpacing) + xMargin;}) |
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.attr("y1", function(d) { return height;}) |
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.attr("x2", function(d,i) { return ((i + 2) * xSpacing) + xMargin}) |
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.attr("y2", function(d) { return height - d.lineLength;}); |
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}; |
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</script> |
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</body> |
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