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Interactive D3.js heatmap
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.heatmap { | |
font-size: 8px; | |
font-family: monospace; | |
} | |
rect.bordered { | |
stroke: #E6E6E6; | |
stroke-width:2px; | |
} | |
text.mono { | |
font-size: 8px; | |
font-family: monospace; | |
fill: #000; | |
} | |
text.legendElement { | |
font-size: 10px; | |
} | |
text.hover { | |
font-weight: bold; | |
fill: #66F; | |
font-background: #000; | |
} | |
.heatmap_tooltip { | |
text-align: center; | |
font-family: monospace; | |
font-size: 14pt; | |
color: #000; | |
position: relative; | |
background: rgba(255, 255, 255, 0.8); | |
border: 4px solid #66F; | |
padding: 5px; | |
border-radius: 8px ; | |
-webkit-border-top-left-radius: 8px; | |
-webkit-border-top-right-radius: 8px; | |
-webkit-border-bottom-right-radius: 8px; | |
-webkit-border-bottom-left-radius: 8px; | |
-khtml-border-top-left-radius: 8px; | |
-khtml-border-top-right-radius: 8px; | |
-khtml-border-bottom-right-radius: 8px; | |
-khtml-border-bottom-left-radius: 8px; | |
-moz-border-radius-topleft: 8px; | |
-moz-border-radius-topright: 8px; | |
-moz-border-radius-bottomright: 8px; | |
-moz-border-radius-bottomleft: 8px; | |
border-top-left-radius: 8px; | |
border-top-right-radius: 8px; | |
border-bottom-right-radius: 8px; | |
border-bottom-left-radius: 8px; | |
width: 100px; | |
z-index:10000; | |
-webkit-box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.8); | |
-moz-box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.8); | |
box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.8); | |
} | |
.heatmap_tooltip:after, .heatmap_tooltip:before { | |
top: 100%; | |
border: solid transparent; | |
content: " "; | |
height: 0; | |
width: 0; | |
position: absolute; | |
pointer-events: none; | |
} | |
.heatmap_tooltip:after { | |
border-color: rgba(236, 240, 241, 0); | |
border-top-color: #FFFFF; | |
border-width: 10px; | |
left: 50%; | |
margin-left: -10px; | |
} | |
.heatmap_tooltip:before { | |
border-color: rgba(44, 62, 80, 0); | |
border-top-color: #66F; | |
border-width: 16px; | |
left: 50%; | |
margin-left: -16px; | |
} |
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var classesNumber = 10, | |
cellSize = 24; | |
//######################################################### | |
function heatmap_display(url, heatmapId, paletteName) { | |
//########################################################################## | |
// [email protected] | |
//########################################################################## | |
//================================================== | |
// References | |
// http://bl.ocks.org/Soylent/bbff6cc507dca2f48792 | |
// http://bost.ocks.org/mike/selection/ | |
// http://bost.ocks.org/mike/join/ | |
// http://stackoverflow.com/questions/9481497/understanding-how-d3-js-binds-data-to-nodes | |
// http://bost.ocks.org/mike/miserables/ | |
// http://bl.ocks.org/ianyfchang/8119685 | |
//================================================== | |
var tooltip = d3.select(heatmapId) | |
.append("div") | |
.style("position", "absolute") | |
.style("visibility", "hidden"); | |
//================================================== | |
// http://bl.ocks.org/mbostock/3680958 | |
function zoom() { | |
svg.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")"); | |
} | |
// define the zoomListener which calls the zoom function on the "zoom" event constrained within the scaleExtents | |
var zoomListener = d3.behavior.zoom().scaleExtent([0.1, 3]).on("zoom", zoom); | |
//================================================== | |
var viewerWidth = $(document).width(); | |
var viewerHeight = $(document).height(); | |
var viewerPosTop = 200; | |
var viewerPosLeft = 100; | |
var legendElementWidth = cellSize * 2; | |
// http://bl.ocks.org/mbostock/5577023 | |
var colors = colorbrewer[paletteName][classesNumber]; | |
// http://bl.ocks.org/mbostock/3680999 | |
var svg; | |
//================================================== | |
d3.json(url, function(error, data) { | |
//console.log(data); | |
var arr = data.data; | |
var row_number = arr.length; | |
var col_number = arr[0].length; | |
//console.log(col_number, row_number); | |
var colorScale = d3.scale.quantize() | |
.domain([0.0, 1.0]) | |
.range(colors); | |
svg = d3.select(heatmapId).append("svg") | |
.attr("width", viewerWidth) | |
.attr("height", viewerHeight) | |
.call(zoomListener) | |
.append("g") | |
.attr("transform", "translate(" + viewerPosLeft + "," + viewerPosTop + ")"); | |
svg.append('defs') | |
.append('pattern') | |
.attr('id', 'diagonalHatch') | |
.attr('patternUnits', 'userSpaceOnUse') | |
.attr('width', 4) | |
.attr('height', 4) | |
.append('path') | |
.attr('d', 'M-1,1 l2,-2 M0,4 l4,-4 M3,5 l2,-2') | |
.attr('stroke', '#000000') | |
.attr('stroke-width', 1); | |
var rowSortOrder = false; | |
var colSortOrder = false; | |
var rowLabels = svg.append("g") | |
.attr("class", "rowLabels") | |
.selectAll(".rowLabel") | |
.data(data.index) | |
.enter().append("text") | |
.text(function(d) { | |
return d.count > 1 ? d.join("/") : d; | |
}) | |
.attr("x", 0) | |
.attr("y", function(d, i) { | |
return (i * cellSize); | |
}) | |
.style("text-anchor", "end") | |
.attr("transform", function(d, i) { | |
return "translate(-3," + cellSize / 1.5 + ")"; | |
}) | |
.attr("class", "rowLabel mono") | |
.attr("id", function(d, i) { | |
return "rowLabel_" + i; | |
}) | |
.on('mouseover', function(d, i) { | |
d3.select('#rowLabel_' + i).classed("hover", true); | |
}) | |
.on('mouseout', function(d, i) { | |
d3.select('#rowLabel_' + i).classed("hover", false); | |
}) | |
.on("click", function(d, i) { | |
rowSortOrder = !rowSortOrder; | |
sortByValues("r", i, rowSortOrder); | |
d3.select("#order").property("selectedIndex", 0); | |
//$("#order").jqxComboBox({selectedIndex: 0}); | |
}); | |
var colLabels = svg.append("g") | |
.attr("class", "colLabels") | |
.selectAll(".colLabel") | |
.data(data.columns) | |
.enter().append("text") | |
.text(function(d) { | |
d.shift(); | |
return d.count > 1 ? d.reverse().join("/") : d.reverse(); | |
}) | |
.attr("x", 0) | |
.attr("y", function(d, i) { | |
return (i * cellSize); | |
}) | |
.style("text-anchor", "left") | |
.attr("transform", function(d, i) { | |
return "translate(" + cellSize / 2 + ", -3) rotate(-90) rotate(45, 0, " + (i * cellSize) + ")"; | |
}) | |
.attr("class", "colLabel mono") | |
.attr("id", function(d, i) { | |
return "colLabel_" + i; | |
}) | |
.on('mouseover', function(d, i) { | |
d3.select('#colLabel_' + i).classed("hover", true); | |
}) | |
.on('mouseout', function(d, i) { | |
d3.select('#colLabel_' + i).classed("hover", false); | |
}) | |
.on("click", function(d, i) { | |
colSortOrder = !colSortOrder; | |
sortByValues("c", i, colSortOrder); | |
d3.select("#order").property("selectedIndex", 0); | |
}); | |
var row = svg.selectAll(".row") | |
.data(data.data) | |
.enter().append("g") | |
.attr("id", function(d) { | |
return d.idx; | |
}) | |
.attr("class", "row"); | |
var j = 0; | |
var heatMap = row.selectAll(".cell") | |
.data(function(d) { | |
j++; | |
return d; | |
}) | |
.enter().append("svg:rect") | |
.attr("x", function(d, i) { | |
return i * cellSize; | |
}) | |
.attr("y", function(d, i, j) { | |
return j * cellSize; | |
}) | |
.attr("rx", 4) | |
.attr("ry", 4) | |
.attr("class", function(d, i, j) { | |
return "cell bordered cr" + j + " cc" + i; | |
}) | |
.attr("row", function(d, i, j) { | |
return j; | |
}) | |
.attr("col", function(d, i, j) { | |
return i; | |
}) | |
.attr("width", cellSize) | |
.attr("height", cellSize) | |
.style("fill", function(d) { | |
if (d != null) return colorScale(d); | |
else return "url(#diagonalHatch)"; | |
}) | |
.on('mouseover', function(d, i, j) { | |
d3.select('#colLabel_' + i).classed("hover", true); | |
d3.select('#rowLabel_' + j).classed("hover", true); | |
if (d != null) { | |
tooltip.html('<div class="heatmap_tooltip">' + d.toFixed(3) + '</div>'); | |
tooltip.style("visibility", "visible"); | |
} else | |
tooltip.style("visibility", "hidden"); | |
}) | |
.on('mouseout', function(d, i, j) { | |
d3.select('#colLabel_' + i).classed("hover", false); | |
d3.select('#rowLabel_' + j).classed("hover", false); | |
tooltip.style("visibility", "hidden"); | |
}) | |
.on("mousemove", function(d, i) { | |
tooltip.style("top", (d3.event.pageY - 55) + "px").style("left", (d3.event.pageX - 60) + "px"); | |
}) | |
.on('click', function() { | |
//console.log(d3.select(this)); | |
}); | |
var legend = svg.append("g") | |
.attr("class", "legend") | |
.attr("transform", "translate(0,-300)") | |
.selectAll(".legendElement") | |
.data([0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9]) | |
.enter().append("g") | |
.attr("class", "legendElement"); | |
legend.append("svg:rect") | |
.attr("x", function(d, i) { | |
return legendElementWidth * i; | |
}) | |
.attr("y", viewerPosTop) | |
.attr("class", "cellLegend bordered") | |
.attr("width", legendElementWidth) | |
.attr("height", cellSize / 2) | |
.style("fill", function(d, i) { | |
return colors[i]; | |
}); | |
legend.append("text") | |
.attr("class", "mono legendElement") | |
.text(function(d) { | |
return "≥" + Math.round(d * 100) / 100; | |
}) | |
.attr("x", function(d, i) { | |
return legendElementWidth * i; | |
}) | |
.attr("y", viewerPosTop + cellSize); | |
//================================================== | |
// Change ordering of cells | |
function sortByValues(rORc, i, sortOrder) { | |
var t = svg.transition().duration(1000); | |
var values = []; | |
var sorted; | |
d3.selectAll(".c" + rORc + i) | |
.filter(function(d) { | |
if (d != null) values.push(d); | |
else values.push(-999); // to handle NaN | |
}); | |
//console.log(values); | |
if (rORc == "r") { // sort on cols | |
sorted = d3.range(col_number).sort(function(a, b) { | |
if (sortOrder) { | |
return values[b] - values[a]; | |
} else { | |
return values[a] - values[b]; | |
} | |
}); | |
t.selectAll(".cell") | |
.attr("x", function(d) { | |
var col = parseInt(d3.select(this).attr("col")); | |
return sorted.indexOf(col) * cellSize; | |
}); | |
t.selectAll(".colLabel") | |
.attr("y", function(d, i) { | |
return sorted.indexOf(i) * cellSize; | |
}) | |
.attr("transform", function(d, i) { | |
return "translate(" + cellSize / 2 + ", -3) rotate(-90) rotate(45, 0, " + (sorted.indexOf(i) * cellSize) + ")"; | |
}); | |
} else { // sort on rows | |
sorted = d3.range(row_number).sort(function(a, b) { | |
if (sortOrder) { | |
return values[b] - values[a]; | |
} else { | |
return values[a] - values[b]; | |
} | |
}); | |
t.selectAll(".cell") | |
.attr("y", function(d) { | |
var row = parseInt(d3.select(this).attr("row")); | |
return sorted.indexOf(row) * cellSize; | |
}); | |
t.selectAll(".rowLabel") | |
.attr("y", function(d, i) { | |
return sorted.indexOf(i) * cellSize; | |
}) | |
.attr("transform", function(d, i) { | |
return "translate(-3," + cellSize / 1.5 + ")"; | |
}); | |
} | |
} | |
//================================================== | |
d3.select("#order").on("change", function() { | |
var newOrder = d3.select("#order").property("value"); | |
changeOrder(newOrder, heatmapId); | |
}); | |
//================================================== | |
d3.select("#palette") | |
.on("keyup", function() { | |
var newPalette = d3.select("#palette").property("value"); | |
if (newPalette != null) // when interfaced with jQwidget, the ComboBox handles keyup event but value is then not available ? | |
changePalette(newPalette, heatmapId); | |
}) | |
.on("change", function() { | |
var newPalette = d3.select("#palette").property("value"); | |
changePalette(newPalette, heatmapId); | |
}); | |
}); | |
//================================================== | |
} | |
//######################################################### | |
function changeOrder(newOrder, heatmapId) { | |
var svg = d3.select(heatmapId); | |
var t = svg.transition().duration(1000); | |
if (newOrder == "sortinit_col") { // initial sort on cols (alphabetically if produced like this) | |
t.selectAll(".cell") | |
.attr("x", function(d) { | |
var col = parseInt(d3.select(this).attr("col")); | |
return col * cellSize; | |
}); | |
t.selectAll(".colLabel") | |
.attr("y", function(d, i) { | |
return i * cellSize; | |
}) | |
.attr("transform", function(d, i) { | |
return "translate(" + cellSize / 2 + ", -3) rotate(-90) rotate(45, 0, " + (i * cellSize) + ")"; | |
}); | |
} else if (newOrder == "sortinit_row") { // initial sort on rows (alphabetically if produced like this) | |
t.selectAll(".cell") | |
.attr("y", function(d) { | |
var row = parseInt(d3.select(this).attr("row")); | |
return row * cellSize; | |
}); | |
t.selectAll(".rowLabel") | |
.attr("y", function(d, i) { | |
return i * cellSize; | |
}) | |
.attr("transform", function(d, i) { | |
return "translate(-3," + cellSize / 1.5 + ")"; | |
}); | |
} else if (newOrder == "sortinit_col_row") { // initial sort on rows and cols (alphabetically if produced like this) | |
t.selectAll(".cell") | |
.attr("x", function(d) { | |
var col = parseInt(d3.select(this).attr("col")); | |
return col * cellSize; | |
}) | |
.attr("y", function(d) { | |
var row = parseInt(d3.select(this).attr("row")); | |
return row * cellSize; | |
}); | |
t.selectAll(".colLabel") | |
.attr("y", function(d, i) { | |
return i * cellSize; | |
}) | |
.attr("transform", function(d, i) { | |
return "translate(" + cellSize / 2 + ", -3) rotate(-90) rotate(45, 0, " + (i * cellSize) + ")"; | |
}); | |
t.selectAll(".rowLabel") | |
.attr("y", function(d, i) { | |
return i * cellSize; | |
}) | |
.attr("transform", function(d, i) { | |
return "translate(-3," + cellSize / 1.5 + ")"; | |
}); | |
} | |
} | |
//######################################################### | |
function changePalette(paletteName, heatmapId) { | |
var colors = colorbrewer[paletteName][classesNumber]; | |
var colorScale = d3.scale.quantize() | |
.domain([0.0, 1.0]) | |
.range(colors); | |
var svg = d3.select(heatmapId); | |
var t = svg.transition().duration(500); | |
t.selectAll(".cell") | |
.style("fill", function(d) { | |
if (d != null) return colorScale(d); | |
else return "url(#diagonalHatch)"; | |
}) | |
t.selectAll(".cellLegend") | |
.style("fill", function(d, i) { | |
return colors[i]; | |
}); | |
} |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<html> | |
<!-- | |
########################################################################## | |
[email protected] | |
########################################################################## | |
--> | |
<script src="http://d3js.org/d3.v3.js"></script> | |
<script src="http://d3js.org/colorbrewer.v1.min.js"></script> | |
<script src="http://code.jquery.com/jquery-1.11.0.min.js"></script> | |
<script src="heatmap.js"></script> | |
<link rel="stylesheet" href="heatmap.css" /> | |
<head> | |
<script> | |
$(document).ready(function() { | |
heatmap_display("metrics_ocmip5.json", "#heatmap", "Spectral"); | |
}); | |
</script> | |
</head> | |
<body> | |
Order: | |
<select id="order"> | |
<option value="null" selected> ----- </option> | |
<option value="sortinit_col_row">Initial order on columns and rows</option> | |
<option value="sortinit_row">Initial order on rows</option> | |
<option value="sortinit_col">Initial order on columns</option> | |
</select> | |
Palette: | |
<select id="palette"> | |
<option value="RdYlGn">RdYlGn</option> | |
<option value="Spectral" selected>Spectral</option> | |
<option value="RdYlBu">RdYlBu</option> | |
<option value="RdGy">RdGy</option> | |
<option value="RdBu">RdBu</option> | |
<option value="PiYG">PiYG</option> | |
<option value="PRGn">PRGn</option> | |
<option value="BrBG">BrBG</option> | |
<option value="PuOr">PuOr</option> | |
</select> | |
<div id="heatmap"></div> | |
</body> | |
</html> |
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MIT License | |
Copyright (c) 2019 Patrick Brockmann / LSCE | |
Permission is hereby granted, free of charge, to any person obtaining a copy | |
of this software and associated documentation files (the "Software"), to deal | |
in the Software without restriction, including without limitation the rights | |
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
copies of the Software, and to permit persons to whom the Software is | |
furnished to do so, subject to the following conditions: | |
The above copyright notice and this permission notice shall be included in all | |
copies or substantial portions of the Software. | |
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
SOFTWARE. |
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