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arpitnarechania/.block

Last active February 4, 2017 03:12
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Circular Heatmap
Raw
.block
license: MIT
Raw
README.md

Circular Heatmap with tooltips

Raw
index.html
<!DOCTYPE>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Circular Heat Map</title>
<!-- JavaScript Libraries //-->
<script src="http://d3js.org/d3.v3.min.js"></script>
<!-- CSS Style //-->
<link href="style.css" rel="stylesheet" type="text/css">
<script type="text/javascript" src="main.js"></script>
</head>
<body>
<div style="margin-left:50px;" id="chart"></div>
</body>
<script>
var inputData =
[{month:1,type:"Category 1",value:25},
{month:2,type:"Category 1",value:15},
{month:3,type:"Category 1",value:27},
{month:4,type:"Category 1",value:10},
{month:5,type:"Category 1",value:54},
{month:6,type:"Category 1",value:23},
{month:7,type:"Category 1",value:31},
{month:8,type:"Category 1",value:17},
{month:9,type:"Category 1",value:8},
{month:10,type:"Category 1",value:12},
{month:11,type:"Category 1",value:32},
{month:12,type:"Category 1",value:35},
{month:1,type:"Category 2",value:19},
{month:2,type:"Category 2",value:24},
{month:3,type:"Category 2",value:27},
{month:4,type:"Category 2",value:12},
{month:5,type:"Category 2",value:19},
{month:6,type:"Category 2",value:30},
{month:7,type:"Category 2",value:31},
{month:8,type:"Category 2",value:25},
{month:9,type:"Category 2",value:20},
{month:10,type:"Category 2",value:5},
{month:11,type:"Category 2",value:21},
{month:12,type:"Category 2",value:10},
{month:1,type:"Category 3",value:19},
{month:2,type:"Category 3",value:3},
{month:3,type:"Category 3",value:32},
{month:4,type:"Category 3",value:23},
{month:5,type:"Category 3",value:9},
{month:6,type:"Category 3",value:17},
{month:7,type:"Category 3",value:25},
{month:8,type:"Category 3",value:29},
{month:9,type:"Category 3",value:32},
{month:10,type:"Category 3",value:33},
{month:11,type:"Category 3",value:19},
{month:12,type:"Category 3",value:24},
{month:1,type:"Category 4",value:12},
{month:2,type:"Category 4",value:43},
{month:3,type:"Category 4",value:12},
{month:4,type:"Category 4",value:23},
{month:5,type:"Category 4",value:14},
{month:6,type:"Category 4",value:19},
{month:7,type:"Category 4",value:22},
{month:8,type:"Category 4",value:39},
{month:9,type:"Category 4",value:22},
{month:10,type:"Category 4",value:26},
{month:11,type:"Category 4",value:31},
{month:12,type:"Category 4",value:25},
];
var radial_labels = ["Category 1","Category 2","Category 3","Category 4"];
var segment_labels = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
loadCircularHeatMap(inputData,"#chart",radial_labels, segment_labels);
</script>
</html>
Raw
main.js
function loadCircularHeatMap (dataset, dom_element_to_append_to,radial_labels,segment_labels) {
var margin = {top: 50, right: 50, bottom: 50, left: 50};
var width = 600 - margin.left - margin.right;
var height = width;
var innerRadius = width/14;
var segmentHeight = (width - margin.top - margin.bottom - 2*innerRadius )/(2*radial_labels.length)
var chart = circularHeatChart()
.innerRadius(innerRadius)
.segmentHeight(segmentHeight)
.range(["white", "#01579b"])
.radialLabels(radial_labels)
.segmentLabels(segment_labels);
chart.accessor(function(d) {return d.value;})
var svg = d3.select(dom_element_to_append_to)
.selectAll('svg')
.data([dataset])
.enter()
.append('svg')
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append('g')
.attr("transform",
"translate(" + ( (width )/2 - (radial_labels.length*segmentHeight + innerRadius) ) + "," + margin.top + ")")
.call(chart);
var tooltip = d3.select(dom_element_to_append_to)
.append('div')
.attr('class', 'tooltip');
tooltip.append('div')
.attr('class', 'month');
tooltip.append('div')
.attr('class', 'value');
tooltip.append('div')
.attr('class', 'type');
svg.selectAll("path")
.on('mouseover', function(d) {
tooltip.select('.month').html("<b> Month: " + d.month + "</b>");
tooltip.select('.type').html("<b> Type: " + d.type + "</b>");
tooltip.select('.value').html("<b> Value: " + d.value + "</b>");
tooltip.style('display', 'block');
tooltip.style('opacity',2);
})
.on('mousemove', function(d) {
tooltip.style('top', (d3.event.layerY + 10) + 'px')
.style('left', (d3.event.layerX - 25) + 'px');
})
.on('mouseout', function(d) {
tooltip.style('display', 'none');
tooltip.style('opacity',0);
});
}
function circularHeatChart() {
var margin = {top: 20, right: 20, bottom: 20, left: 20},
innerRadius = 20,
numSegments = 12,
segmentHeight = 20,
domain = null,
range = ["white", "red"],
accessor = function(d) {return d;},
radialLabels = segmentLabels = [];
function chart(selection) {
selection.each(function(data) {
var svg = d3.select(this);
var offset = innerRadius + Math.ceil(data.length / numSegments) * segmentHeight;
g = svg.append("g")
.classed("circular-heat", true)
.attr("transform", "translate(" + parseInt(margin.left + offset) + "," + parseInt(margin.top + offset) + ")");
var autoDomain = false;
if (domain === null) {
domain = d3.extent(data, accessor);
autoDomain = true;
}
var color = d3.scale.linear().domain(domain).range(range);
if(autoDomain)
domain = null;
g.selectAll("path").data(data)
.enter().append("path")
.attr("d", d3.svg.arc().innerRadius(ir).outerRadius(or).startAngle(sa).endAngle(ea))
.attr("stroke", function(d) {return "#4f5b69";})
.attr("fill", function(d) {return color(accessor(d));});
// Unique id so that the text path defs are unique - is there a better way to do this?
var id = d3.selectAll(".circular-heat")[0].length;
//Radial labels
var lsa = 0.01; //Label start angle
var labels = svg.append("g")
.classed("labels", true)
.classed("radial", true)
.attr("transform", "translate(" + parseInt(margin.left + offset) + "," + parseInt(margin.top + offset) + ")");
labels.selectAll("def")
.data(radialLabels).enter()
.append("def")
.append("path")
.attr("id", function(d, i) {return "radial-label-path-"+id+"-"+i;})
.attr("d", function(d, i) {
var r = innerRadius + ((i + 0.2) * segmentHeight);
return "m" + r * Math.sin(lsa) + " -" + r * Math.cos(lsa) +
" a" + r + " " + r + " 0 1 1 -1 0";
});
labels.selectAll("text")
.data(radialLabels).enter()
.append("text")
.append("textPath")
.attr("xlink:href", function(d, i) {return "#radial-label-path-"+id+"-"+i;})
.style("font-size", "16px")
.text(function(d) {return d;});
//Segment labels
var segmentLabelOffset = 2;
var r = innerRadius + Math.ceil(data.length / numSegments) * segmentHeight + segmentLabelOffset;
labels = svg.append("g")
.classed("labels", true)
.classed("segment", true)
.attr("transform", "translate(" + parseInt(margin.left + offset) + "," + parseInt(margin.top + offset) + ")");
labels.append("def")
.append("path")
.attr("id", "segment-label-path-"+id)
.attr("d", "m0 -" + r + " a" + r + " " + r + " 0 1 1 -1 0");
labels.selectAll("text")
.data(segmentLabels).enter()
.append("text")
.append("textPath")
.attr("xlink:href", "#segment-label-path-"+id)
.style("font-size", "16px")
.attr("startOffset", function(d, i) {return i * 100 / numSegments + "%";})
.text(function(d) {return d;});
});
}
/* Arc functions */
ir = function(d, i) {
return innerRadius + Math.floor(i/numSegments) * segmentHeight;
}
or = function(d, i) {
return innerRadius + segmentHeight + Math.floor(i/numSegments) * segmentHeight;
}
sa = function(d, i) {
return (i * 2 * Math.PI) / numSegments;
}
ea = function(d, i) {
return ((i + 1) * 2 * Math.PI) / numSegments;
}
/* Configuration getters/setters */
chart.margin = function(_) {
if (!arguments.length) return margin;
margin = _;
return chart;
};
chart.innerRadius = function(_) {
if (!arguments.length) return innerRadius;
innerRadius = _;
return chart;
};
chart.numSegments = function(_) {
if (!arguments.length) return numSegments;
numSegments = _;
return chart;
};
chart.segmentHeight = function(_) {
if (!arguments.length) return segmentHeight;
segmentHeight = _;
return chart;
};
chart.domain = function(_) {
if (!arguments.length) return domain;
domain = _;
return chart;
};
chart.range = function(_) {
if (!arguments.length) return range;
range = _;
return chart;
};
chart.radialLabels = function(_) {
if (!arguments.length) return radialLabels;
if (_ == null) _ = [];
radialLabels = _;
return chart;
};
chart.segmentLabels = function(_) {
if (!arguments.length) return segmentLabels;
if (_ == null) _ = [];
segmentLabels = _;
return chart;
};
chart.accessor = function(_) {
if (!arguments.length) return accessor;
accessor = _;
return chart;
};
return chart;
}
Raw
style.css
path:hover{
fill:#9b59b6;
}
.tooltip {
background: #eee;
box-shadow: 0 0 5px #999999;
color: #333;
font-size: 12px;
left: 130px;
padding: 10px;
position: absolute;
text-align: center;
top: 95px;
z-index: 10;
display: block;
opacity: 0;
}
.title{
font-size:16px;
}
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