This is an example from D3.js in Action that continues to develop a data dashboard by including mouseover events on the graphical elements to highlight shared datapoints.
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Ch. 9, Early Dashboard 2 - D3.js in Action
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| <html> | |
| <head> | |
| <title>D3 in Action Chapter 9 - Example 2</title> | |
| <meta charset="utf-8" /> | |
| <script src="https://d3js.org/colorbrewer.v1.min.js" type="text/JavaScript"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
| </head> | |
| <style> | |
| body,html { | |
| width: 100%; | |
| height: 100%; #a | |
| } | |
| .svgDash { | |
| width: 50%; | |
| height: 50%; | |
| background: #fcfcfc; | |
| } | |
| #leftSVG { | |
| float:left; | |
| } | |
| #spreadsheet { | |
| width: 100%; | |
| height: 50%; | |
| overflow:auto; | |
| background: #fcfcfc; | |
| } | |
| circle.pack { | |
| stroke: black; | |
| stroke-width: 2px; | |
| } | |
| rect.bar { | |
| fill: gray; | |
| stroke: black; | |
| stroke-width: 1px; | |
| } | |
| </style> | |
| <body> | |
| <svg id="leftSVG" class="svgDash"></svg> | |
| <svg id="rightSVG" class="svgDash"></svg> | |
| <div id="spreadsheet"></div> | |
| </body> | |
| <footer> | |
| <script> | |
| window.onresize = function(event) { | |
| redraw(); | |
| } | |
| function hover(hoverD) { | |
| var nestArray = hoverD.values || []; | |
| d3.selectAll("circle").filter(function (d) {return d == hoverD}).style("fill", "#94B8FF"); | |
| d3.selectAll("rect").filter(function (d) {return d == hoverD || d.values.indexOf(hoverD) > -1}) | |
| .style("fill", "#94B8FF"); | |
| d3.selectAll("div.datarow") | |
| .filter(function (d) {return d == hoverD || nestArray.indexOf(d) > -1}) | |
| .style("background", "#94B8FF"); | |
| } | |
| function mouseOut() { | |
| d3.selectAll("circle").style("fill", function(d) {return depthScale(d.depth)}); | |
| d3.selectAll("rect").style("fill", "gray").style("stroke-width", 0); | |
| d3.selectAll("div.datarow").style("background", "white"); | |
| } | |
| d3.json("tweets.json",function(error,data) {main(data.tweets)}); | |
| // d3.selectAll("svg").append("rect").attr("width", 100).attr("height", 100); | |
| function main(incData) { | |
| createSpreadsheet(incData, "#controls"); | |
| var nestedTweets = d3.nest() | |
| .key(function (el) {return el.user}) | |
| .entries(incData); | |
| packableTweets = {id: "root", values: nestedTweets} | |
| createBar(nestedTweets, "#rightSVG"); | |
| createPack(packableTweets, "#leftSVG"); | |
| redraw(); | |
| } | |
| function canvasSize(targetElement) { | |
| var newHeight = parseFloat(d3.select(targetElement).node().clientHeight); | |
| var newWidth = parseFloat(d3.select(targetElement).node().clientWidth); | |
| return [newWidth,newHeight]; | |
| } | |
| function redraw() { | |
| var leftSize = canvasSize("#leftSVG"); | |
| packChart.size(leftSize) | |
| d3.select("#leftSVG") | |
| .selectAll("circle") | |
| .attr("class", "pack") | |
| .data(packChart(packableTweets)) | |
| .attr("r", function(d) {return d.r - (d.depth * 0)}) | |
| .attr("cx", function(d) {return d.x}) | |
| .attr("cy", function(d) {return d.y}); | |
| var rectNumber = d3.select("#rightSVG").selectAll("rect").size(); | |
| var rectData = d3.select("#rightSVG").selectAll("rect").data(); | |
| var rectMax = d3.max(rectData, function(d) {return d.values.length}); | |
| var rightSize = canvasSize("#rightSVG"); | |
| barXScale = d3.scale.ordinal().domain(rectData.map(function(d){return d.key})).rangeBands([0, rightSize[0]]); | |
| console.log(rectMax) | |
| barYScale = d3.scale.linear() | |
| .domain([0, rectMax]) | |
| .range([rightSize[1],0]) | |
| d3.select("#rightSVG") | |
| .selectAll("rect") | |
| .attr("x", function(d,i) {return barXScale(d.key) + 5}) | |
| .attr("width", function() {return barXScale.rangeBand() - 5}) | |
| .attr("y", function(d) {return barYScale(d.values.length)}) | |
| .style("stroke", "black") | |
| .attr("height", function(d) {return rightSize[1] - barYScale(d.values.length)}) | |
| } | |
| function createBar(incData,targetSVG) { | |
| d3.select(targetSVG).selectAll("rect").data(incData) | |
| .enter() | |
| .append("rect") | |
| .attr("class", "bar") | |
| .attr("fill", "darkred") | |
| .on("mouseover", hover) | |
| .on("mouseout", mouseOut); | |
| } | |
| function createPack(incData,targetSVG) { | |
| depthScale = d3.scale.quantize().domain([0,1,2]).range(colorbrewer.Reds[3]); | |
| packChart = d3.layout.pack(); | |
| packChart.size([500,500]) | |
| .children(function(d) {return d.values}) | |
| .value(function(d) {return 1}) | |
| d3.select(targetSVG) | |
| .append("g") | |
| .attr("transform", "translate(0,0)") | |
| .selectAll("circle") | |
| .data(packChart(incData)) | |
| .enter() | |
| .append("circle") | |
| .style("fill", function(d) {return depthScale(d.depth)}) | |
| .on("mouseover", hover) | |
| .on("mouseout", mouseOut); | |
| } | |
| function createSpreadsheet(incData, targetDiv) { | |
| var keyValues = d3.keys(incData[0]) | |
| d3.select(targetDiv) | |
| .append("div") | |
| .attr("class", "table") | |
| d3.select("div.table") | |
| .append("div") | |
| .attr("class", "head row") | |
| .selectAll("div.data") | |
| .data(keyValues) | |
| .enter() | |
| .append("div") | |
| .attr("class", "data") | |
| .html(function (d) {return d}) | |
| .style("left", function(d,i) {return (i * 100) + "px"}); | |
| d3.select("div.table") | |
| .selectAll("div.datarow") | |
| .data(incData, function(d) {return d.content}).enter() | |
| .append("div") | |
| .attr("class", "datarow row") | |
| .style("top", function(d,i) {return (40 + (i * 40)) + "px"}) | |
| .on("mouseover", hover) | |
| .on("mouseout", mouseOut); | |
| d3.selectAll("div.datarow") | |
| .selectAll("div.data") | |
| .data(function(d) {return d3.entries(d)}) | |
| .enter() | |
| .append("div") | |
| .attr("class", "data") | |
| .html(function (d) {return d.value}) | |
| .style("left", function(d,i,j) {return (i * 100) + "px"}); | |
| } | |
| </script> | |
| </footer> | |
| </html> |
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| { | |
| "tweets": [ | |
| {"user": "Al", "content": "I really love seafood.", "timestamp": " Mon Dec 23 2013 21:30 GMT-0800 (PST)", "retweets": ["Raj","Pris","Roy"], "favorites": ["Sam"]}, | |
| {"user": "Al", "content": "I take that back, this doesn't taste so good.", "timestamp": "Mon Dec 23 2013 21:55 GMT-0800 (PST)", "retweets": ["Roy"], "favorites": []}, | |
| {"user": "Al", "content": "From now on, I'm only eating cheese sandwiches.", "timestamp": "Mon Dec 23 2013 22:22 GMT-0800 (PST)", "retweets": [], "favorites": ["Roy","Sam"]}, | |
| {"user": "Roy", "content": "Great workout!", "timestamp": " Mon Dec 23 2013 7:20 GMT-0800 (PST)", "retweets": [], "favorites": []}, | |
| {"user": "Roy", "content": "Spectacular oatmeal!", "timestamp": " Mon Dec 23 2013 7:23 GMT-0800 (PST)", "retweets": [], "favorites": []}, | |
| {"user": "Roy", "content": "Amazing traffic!", "timestamp": " Mon Dec 23 2013 7:47 GMT-0800 (PST)", "retweets": [], "favorites": []}, | |
| {"user": "Roy", "content": "Just got a ticket for texting and driving!", "timestamp": " Mon Dec 23 2013 8:05 GMT-0800 (PST)", "retweets": [], "favorites": ["Sam", "Sally", "Pris"]}, | |
| {"user": "Pris", "content": "Going to have some boiled eggs.", "timestamp": " Mon Dec 23 2013 18:23 GMT-0800 (PST)", "retweets": [], "favorites": ["Sally"]}, | |
| {"user": "Pris", "content": "Maybe practice some gymnastics.", "timestamp": " Mon Dec 23 2013 19:47 GMT-0800 (PST)", "retweets": [], "favorites": ["Sally"]}, | |
| {"user": "Sam", "content": "@Roy Let's get lunch", "timestamp": " Mon Dec 23 2013 11:05 GMT-0800 (PST)", "retweets": ["Pris"], "favorites": ["Sally", "Pris"]} | |
| ] | |
| } | |
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