Error Bars component for d3.compose.
d3.compose Error Bars
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license: mit |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<link rel="stylesheet" type="text/css" href="https://npmcdn.com/d3.compose@0.15.13/dist/d3.compose.css"> | |
<style> | |
#chart {width: 800px; height: 400px;} | |
.error-bars-tick {stroke-width: 2px;} | |
.error-bars-beam {stroke-dasharray: 10, 10;} | |
</style> | |
<div id="chart"></div> | |
<script src="https://d3js.org/d3.v3.min.js"></script> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3.chart/0.2.1/d3.chart.min.js"></script> | |
<script src="https://npmcdn.com/d3.compose@0.15.13/dist/d3.compose-all.js"></script> | |
<script> | |
/** | |
ErrorBars chart | |
Looks for error: [min, max] for each data-point | |
*/ | |
var Mixed = d3c.helpers.mixin(d3c.Chart, d3c.mixins.Series, d3c.mixins.XY); | |
Mixed.extend('ErrorBars', { | |
initialize: function() { | |
Mixed.prototype.initialize.apply(this, arguments); | |
var layer = this.base.append('g').classed('error-bars', true); | |
this.seriesLayer('ErrorBars', layer, { | |
dataBind: function(data) { | |
return this.selectAll('g') | |
.data(data, this.key); | |
}, | |
insert: function() { | |
var group = this.append('g'); | |
group.append('line').attr('class', 'error-bars-tick error-bars-top-tick'); | |
group.append('line').attr('class', 'error-bars-tick error-bars-bottom-tick'); | |
group.append('line').attr('class', 'error-bars-beam'); | |
return group; | |
}, | |
events: { | |
enter: function() { | |
var chart = this.chart(); | |
this.select('.error-bars-bottom-tick') | |
.attr('x1', chart.x1) | |
.attr('y1', chart.bottomY) | |
.attr('x2', chart.x2) | |
.attr('y2', chart.bottomY); | |
this.select('.error-bars-top-tick') | |
.attr('x1', chart.x1) | |
.attr('y1', chart.topY) | |
.attr('x2', chart.x2) | |
.attr('y2', chart.topY); | |
this.select('.error-bars-beam') | |
.attr('x1', chart.x) | |
.attr('y1', chart.bottomY) | |
.attr('x2', chart.x) | |
.attr('y2', chart.topY); | |
} | |
} | |
}) | |
}, | |
tickWidth: d3c.helpers.property({ | |
default_value: 10 | |
}), | |
bottomY: d3c.helpers.di(function(chart, d, i) { | |
return chart.yScale()(d.error[0]); | |
}), | |
topY: d3c.helpers.di(function(chart, d, i) { | |
return chart.yScale()(d.error[1]); | |
}), | |
x1: d3c.helpers.di(function(chart, d, i) { | |
return chart.x.call(this, d, i) - (chart.tickWidth() / 2); | |
}), | |
x2: d3c.helpers.di(function(chart, d, i) { | |
return chart.x.call(this, d, i) + (chart.tickWidth() / 2); | |
}) | |
}); | |
// Example chart | |
var chart = d3.select('#chart').chart('Compose', function(data) { | |
var xScale = {data: data, key: 'x'}; | |
var yScale = {domain: [0, 100]}; | |
var charts = [ | |
d3c.lines({data: data, xScale: xScale, yScale: yScale}), | |
{type: 'ErrorBars', data: data, xScale: xScale, yScale: yScale} | |
]; | |
var yAxis = d3c.axis({scale: yScale}); | |
return [ | |
[yAxis, d3c.layered(charts)] | |
]; | |
}).width(800).height(400); | |
chart.draw([ | |
{ | |
key: 'series-1', | |
values: [ | |
{x: 10, y: 20, error: [15, 22]}, | |
{x: 50, y: 55, error: [52, 57]}, | |
{x: 100, y: 80, error: [60, 100]} | |
] | |
}, | |
{ | |
key: 'series-2', | |
values: [ | |
{x: 10, y: 10, error: [9, 11]}, | |
{x: 50, y: 50, error: [49, 51]}, | |
{x: 100, y: 85, error: [84, 86]} | |
] | |
} | |
]); | |
</script> |
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