d3js: Color and size SVG circle based on input.
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December 24, 2015 14:29
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d3js: Color and size SVG circle based on input.
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<!DOCTYPE html> | |
<meta charset='utf-8'> | |
<html> | |
<head> | |
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
<link rel='stylesheet' href='style.css'> | |
</head> | |
<body> | |
<script type='text/javascript' src='script.js'></script> | |
</body> | |
</html> |
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var h = 100 | |
var w = 100 | |
var colors = ['red','blue','green','yellow','orange','purple','black'] | |
var body = d3.select('body') | |
// Create input choices | |
body.append('p').text('Select fill color:') | |
body.append('select') | |
.attr('class','inputColor') | |
.on('change',function () { | |
var colorsChoice = d3.select('.inputColor').property('value') | |
d3.select('circle') | |
.transition() | |
.duration(1000) | |
.attr('fill',colorsChoice) | |
}) | |
.selectAll('option') | |
.data(colors) | |
.enter() | |
.append('option') | |
.attr('value',function (d) { return d }) | |
.text(function (d) { return d}) | |
body.append('br') | |
body.append('p').text('Select radius size:') | |
body.append('input') | |
.attr('class','inputRadius') | |
.attr('type','range') | |
.attr('min',0) | |
.attr('max',45) | |
.attr('step',1) | |
.attr('value',40) | |
.on('change',function() { | |
var radiusChoice = d3.select('.inputRadius').property('value') | |
d3.select('circle') | |
.transition() | |
.duration(1000) | |
.attr('r',radiusChoice) | |
}) | |
body.append('br') | |
var svg = d3.select('body').append('svg') | |
.attr('width',w) | |
.attr('height',h) | |
var circle = svg.append('circle') | |
.attr('r',40) | |
.attr('cx',w/2) | |
.attr('cy',h/2) | |
.attr('fill','red') | |
.attr('stroke','black') |
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