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August 29, 2015 13:59
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slider to control a circle size
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<!DOCTYPE html> | |
<html> | |
<head> | |
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.10/angular.min.js"></script> | |
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
<style> | |
input { | |
position:absolute; | |
left:200px; | |
top:20px; | |
} | |
</style> | |
</head> | |
<body ng-app="myApp" ng-init="chart=[10]"> | |
<input type="range" ng-model="chart[0]"> | |
<my-circle data="chart"></my-circle> | |
<script> | |
var myApp = angular.module('myApp', []); | |
myApp.directive('myCircle', function(){ | |
function link(scope, el, attr){ | |
var color = d3.scale.category10(); | |
var data = scope.data; | |
var width = 800; | |
var height = 800; | |
var min = Math.min(width, height); | |
var svg = d3.select(el[0]).append('svg'); | |
svg.attr({width: width, height: height}); | |
var g = svg.append('g') | |
// center the donut chart | |
.attr('transform', 'translate( 100 , 100 )'); | |
// add the <path>s for each arc slice | |
var arcs = g.selectAll('circle').data(data) | |
.enter().append('circle') | |
.style('stroke', 'white') | |
.attr("cx",50) | |
.attr("cy",50) | |
.attr("r",function(d,i) {return d;}) | |
.attr('fill', function(d,i) {return color(d);}); | |
scope.$watch('data', function(){ | |
arcs.data(data) | |
.attr("r",function(d,i) {return d;}) | |
.attr('fill', function(d,i) {return color(d);}) | |
.style("stroke","black") | |
.style("stroke-width",function(d,i) {return d/10;}); | |
}, true); | |
} | |
return { | |
link: link, | |
restrict: 'E', | |
scope: { data: '=' } | |
}; | |
}); | |
</script> | |
</body> | |
</html> |
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