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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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