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January 9, 2014 21:13
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,144 @@ angular.module('CrowdSound').directive 'csChart', () -> restrict: "E" scope: question: "=" index: "=" link: (scope, element, attrs) -> scope.data = [] class PieChart constructor: (element) -> @width = 350 @height = 350 # @oRadius = @width/2 @iRadius = 50 @padding = 2 @layout = d3.layout.pie().value( (d) => d.votes) @chart = d3.select(element[0]) @svg = @chart.append("svg") .attr("width", @width) .attr("height", @height) @color = d3.scale.category10().domain(d3.range(0,10)) @arcGroup = @svg.append("g") .attr("class", "arc") .attr("transform", "translate(" + @oRadius() + "," + @oRadius() + ")" ) @labelGroup = @svg.append("g") .attr("class", "label") .attr("transform", "translate(" + @oRadius() + "," + @oRadius() + ")" ) arc: () -> d3.svg.arc() .innerRadius(@iRadius) .outerRadius(@oRadius()) oRadius: () -> @width/2 toggleWidth: () -> width = d3.select("#question#{scope.index}").style("width") return if width.match("%") if width == "auto" || parseInt(width) < 350 @width = 220 @height = 220 @svg.attr("width", @width).attr("height", @height) @arcGroup.attr("transform", "translate(" + @oRadius() + "," + @oRadius() + ")" ) @labelGroup.attr("transform", "translate(" + @oRadius() + "," + @oRadius() + ")" ) else @width = 350 @height = 350 @svg.attr("width", @width).attr("height", @height) @arcGroup.attr("transform", "translate(" + @oRadius() + "," + @oRadius() + ")" ) @labelGroup.attr("transform", "translate(" + @oRadius() + "," + @oRadius() + ")" ) arcTween: (oldData, d, i) => # if oldData[i] # s0 = oldData[i].startAngle # e0 = oldData[i].endAngle # else # s0 = 0 # e0 = 0 # i = d3.interpolate({startAngle: s0, endAngle: e0}, {startAngle: d.startAngle, endAngle: d.endAngle}) i = d3.interpolate(this._current, d) (t) => b = i(t) @arc()(b) render: (oldData, newData) -> console.log "render csPie triggered" return if _.compact(_.pluck(newData, 'votes')).length is 0 @toggleWidth() pieData = @layout(newData) oldPieData = @layout(oldData) @arcGroup.selectAll("path").data(pieData) .enter().append("path") .attr("fill", (d,i) => @color(i) ) .transition() .duration(1000) .attr("d", (d) => @arc()(d) ) .each((d) => this._current = d ) @arcGroup.selectAll("path").data(pieData) .transition() .attr("fill", (d,i) => @color(i) ) .duration(1000) .attrTween("d", (d,i) => @arcTween(oldPieData, d,i)); @arcGroup.selectAll("path").data(pieData) .exit() .remove() .transition() .duration(1000) .attrTween("d", (d,i) => @arcTween(oldPieData, d,i)); @labelGroup.selectAll("text").data(pieData) .enter() .append("text") .transition() .duration(500) .attr('transform', (d) => 'translate(' + @arc().centroid(d) + ')' ) .attr('text-anchor', 'middle') .text((d) -> if d.value is 0 "" else d.data.answer.substr(0,10) + " (" + d.value + ")") @labelGroup.selectAll("text").data(pieData) .transition() .duration(500) .attr('transform', (d) => 'translate(' + @arc().centroid(d) + ')' ) .attr('text-anchor', 'middle') .text((d) -> if d.value is 0 "" else d.data.answer.substr(0,10) + " (" + d.value + ")") @labelGroup.selectAll("text").data(pieData) .exit().remove() .transition() .duration(500) pieChart = new PieChart(element) scope.$watch "data", (newData, oldData) => if newData pieChart.render(oldData, newData) , true scope.$watch 'question', (newData, oldData) -> if newData rawData = [] _.each newData.answers, (obj) -> if obj.votes? datum = {} datum.votes = obj.votes datum.answer = obj.name rawData.push datum scope.data = rawData , true