+++ /dev/null
-nv.models.pie = function() {
- "use strict";
- //============================================================
- // Public Variables with Default Settings
- //------------------------------------------------------------
-
- var margin = {top: 0, right: 0, bottom: 0, left: 0}
- , width = 500
- , height = 500
- , getX = function(d) { return d.x }
- , getY = function(d) { return d.y }
- , getDescription = function(d) { return d.description }
- , id = Math.floor(Math.random() * 10000) //Create semi-unique ID in case user doesn't select one
- , color = nv.utils.defaultColor()
- , valueFormat = d3.format(',.2f')
- , showLabels = true
- , pieLabelsOutside = true
- , donutLabelsOutside = false
- , labelType = "key"
- , labelThreshold = .02 //if slice percentage is under this, don't show label
- , donut = false
- , labelSunbeamLayout = false
- , startAngle = false
- , endAngle = false
- , donutRatio = 0.5
- , dispatch = d3.dispatch('chartClick', 'elementClick', 'elementDblClick', 'elementMouseover', 'elementMouseout')
- ;
-
- //============================================================
-
-
- function chart(selection) {
- selection.each(function(data) {
- var availableWidth = width - margin.left - margin.right,
- availableHeight = height - margin.top - margin.bottom,
- radius = Math.min(availableWidth, availableHeight) / 2,
- arcRadius = radius-(radius / 5),
- container = d3.select(this);
-
-
- //------------------------------------------------------------
- // Setup containers and skeleton of chart
-
- //var wrap = container.selectAll('.nv-wrap.nv-pie').data([data]);
- var wrap = container.selectAll('.nv-wrap.nv-pie').data(data);
- var wrapEnter = wrap.enter().append('g').attr('class','nvd3 nv-wrap nv-pie nv-chart-' + id);
- var gEnter = wrapEnter.append('g');
- var g = wrap.select('g');
-
- gEnter.append('g').attr('class', 'nv-pie');
-
- wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
- g.select('.nv-pie').attr('transform', 'translate(' + availableWidth / 2 + ',' + availableHeight / 2 + ')');
-
- //------------------------------------------------------------
-
-
- container
- .on('click', function(d,i) {
- dispatch.chartClick({
- data: d,
- index: i,
- pos: d3.event,
- id: id
- });
- });
-
-
- var arc = d3.svg.arc()
- .outerRadius(arcRadius);
-
- if (startAngle) arc.startAngle(startAngle)
- if (endAngle) arc.endAngle(endAngle);
- if (donut) arc.innerRadius(radius * donutRatio);
-
- // Setup the Pie chart and choose the data element
- var pie = d3.layout.pie()
- .sort(null)
- .value(function(d) { return d.disabled ? 0 : getY(d) });
-
- var slices = wrap.select('.nv-pie').selectAll('.nv-slice')
- .data(pie);
-
- slices.exit().remove();
-
- var ae = slices.enter().append('g')
- .attr('class', 'nv-slice')
- .on('mouseover', function(d,i){
- d3.select(this).classed('hover', true);
- dispatch.elementMouseover({
- label: getX(d.data),
- value: getY(d.data),
- point: d.data,
- pointIndex: i,
- pos: [d3.event.pageX, d3.event.pageY],
- id: id
- });
- })
- .on('mouseout', function(d,i){
- d3.select(this).classed('hover', false);
- dispatch.elementMouseout({
- label: getX(d.data),
- value: getY(d.data),
- point: d.data,
- index: i,
- id: id
- });
- })
- .on('click', function(d,i) {
- dispatch.elementClick({
- label: getX(d.data),
- value: getY(d.data),
- point: d.data,
- index: i,
- pos: d3.event,
- id: id
- });
- d3.event.stopPropagation();
- })
- .on('dblclick', function(d,i) {
- dispatch.elementDblClick({
- label: getX(d.data),
- value: getY(d.data),
- point: d.data,
- index: i,
- pos: d3.event,
- id: id
- });
- d3.event.stopPropagation();
- });
-
- slices
- .attr('fill', function(d,i) { return color(d, i); })
- .attr('stroke', function(d,i) { return color(d, i); });
-
- var paths = ae.append('path')
- .each(function(d) { this._current = d; });
- //.attr('d', arc);
-
- d3.transition(slices.select('path'))
- .attr('d', arc)
- .attrTween('d', arcTween);
-
- if (showLabels) {
- // This does the normal label
- var labelsArc = d3.svg.arc().innerRadius(0);
-
- if (pieLabelsOutside){ labelsArc = arc; }
-
- if (donutLabelsOutside) { labelsArc = d3.svg.arc().outerRadius(arc.outerRadius()); }
-
- ae.append("g").classed("nv-label", true)
- .each(function(d, i) {
- var group = d3.select(this);
-
- group
- .attr('transform', function(d) {
- if (labelSunbeamLayout) {
- d.outerRadius = arcRadius + 10; // Set Outer Coordinate
- d.innerRadius = arcRadius + 15; // Set Inner Coordinate
- var rotateAngle = (d.startAngle + d.endAngle) / 2 * (180 / Math.PI);
- if ((d.startAngle+d.endAngle)/2 < Math.PI) {
- rotateAngle -= 90;
- } else {
- rotateAngle += 90;
- }
- return 'translate(' + labelsArc.centroid(d) + ') rotate(' + rotateAngle + ')';
- } else {
- d.outerRadius = radius + 10; // Set Outer Coordinate
- d.innerRadius = radius + 15; // Set Inner Coordinate
- return 'translate(' + labelsArc.centroid(d) + ')'
- }
- });
-
- group.append('rect')
- .style('stroke', '#fff')
- .style('fill', '#fff')
- .attr("rx", 3)
- .attr("ry", 3);
-
- group.append('text')
- .style('text-anchor', labelSunbeamLayout ? ((d.startAngle + d.endAngle) / 2 < Math.PI ? 'start' : 'end') : 'middle') //center the text on it's origin or begin/end if orthogonal aligned
- .style('fill', '#000')
-
-
- });
-
- slices.select(".nv-label").transition()
- .attr('transform', function(d) {
- if (labelSunbeamLayout) {
- d.outerRadius = arcRadius + 10; // Set Outer Coordinate
- d.innerRadius = arcRadius + 15; // Set Inner Coordinate
- var rotateAngle = (d.startAngle + d.endAngle) / 2 * (180 / Math.PI);
- if ((d.startAngle+d.endAngle)/2 < Math.PI) {
- rotateAngle -= 90;
- } else {
- rotateAngle += 90;
- }
- return 'translate(' + labelsArc.centroid(d) + ') rotate(' + rotateAngle + ')';
- } else {
- d.outerRadius = radius + 10; // Set Outer Coordinate
- d.innerRadius = radius + 15; // Set Inner Coordinate
- return 'translate(' + labelsArc.centroid(d) + ')'
- }
- });
-
- slices.each(function(d, i) {
- var slice = d3.select(this);
-
- slice
- .select(".nv-label text")
- .style('text-anchor', labelSunbeamLayout ? ((d.startAngle + d.endAngle) / 2 < Math.PI ? 'start' : 'end') : 'middle') //center the text on it's origin or begin/end if orthogonal aligned
- .text(function(d, i) {
- var percent = (d.endAngle - d.startAngle) / (2 * Math.PI);
- return Math.round(percent*1001/10)+"%";
- /*var labelTypes = {
- "key" : getX(d.data),
- "value": getY(d.data),
- "percent": d3.format('%')(percent)
- };
- return (d.value && percent > labelThreshold) ? labelTypes[labelType] : '';
- */
- });
-
- var textBox = slice.select('text').node().getBBox();
- slice.select(".nv-label rect")
- .attr("width", textBox.width + 10)
- .attr("height", textBox.height + 10)
- .attr("transform", function() {
- return "translate(" + [textBox.x - 5, textBox.y - 5] + ")";
- });
- });
- }
-
-
- // Computes the angle of an arc, converting from radians to degrees.
- function angle(d) {
- var a = (d.startAngle + d.endAngle) * 90 / Math.PI - 90;
- return a > 90 ? a - 180 : a;
- }
-
- function arcTween(a) {
- a.endAngle = isNaN(a.endAngle) ? 0 : a.endAngle;
- a.startAngle = isNaN(a.startAngle) ? 0 : a.startAngle;
- if (!donut) a.innerRadius = 0;
- var i = d3.interpolate(this._current, a);
- this._current = i(0);
- return function(t) {
- return arc(i(t));
- };
- }
-
- function tweenPie(b) {
- b.innerRadius = 0;
- var i = d3.interpolate({startAngle: 0, endAngle: 0}, b);
- return function(t) {
- return arc(i(t));
- };
- }
-
- });
-
- return chart;
- }
-
-
- //============================================================
- // Expose Public Variables
- //------------------------------------------------------------
-
- chart.dispatch = dispatch;
- chart.options = nv.utils.optionsFunc.bind(chart);
-
- chart.margin = function(_) {
- if (!arguments.length) return margin;
- margin.top = typeof _.top != 'undefined' ? _.top : margin.top;
- margin.right = typeof _.right != 'undefined' ? _.right : margin.right;
- margin.bottom = typeof _.bottom != 'undefined' ? _.bottom : margin.bottom;
- margin.left = typeof _.left != 'undefined' ? _.left : margin.left;
- return chart;
- };
-
- chart.width = function(_) {
- if (!arguments.length) return width;
- width = _;
- return chart;
- };
-
- chart.height = function(_) {
- if (!arguments.length) return height;
- height = _;
- return chart;
- };
-
- chart.values = function(_) {
- nv.log("pie.values() is no longer supported.");
- return chart;
- };
-
- chart.x = function(_) {
- if (!arguments.length) return getX;
- getX = _;
- return chart;
- };
-
- chart.y = function(_) {
- if (!arguments.length) return getY;
- getY = d3.functor(_);
- return chart;
- };
-
- chart.description = function(_) {
- if (!arguments.length) return getDescription;
- getDescription = _;
- return chart;
- };
-
- chart.showLabels = function(_) {
- if (!arguments.length) return showLabels;
- showLabels = _;
- return chart;
- };
-
- chart.labelSunbeamLayout = function(_) {
- if (!arguments.length) return labelSunbeamLayout;
- labelSunbeamLayout = _;
- return chart;
- };
-
- chart.donutLabelsOutside = function(_) {
- if (!arguments.length) return donutLabelsOutside;
- donutLabelsOutside = _;
- return chart;
- };
-
- chart.pieLabelsOutside = function(_) {
- if (!arguments.length) return pieLabelsOutside;
- pieLabelsOutside = _;
- return chart;
- };
-
- chart.labelType = function(_) {
- if (!arguments.length) return labelType;
- labelType = _;
- labelType = labelType || "key";
- return chart;
- };
-
- chart.donut = function(_) {
- if (!arguments.length) return donut;
- donut = _;
- return chart;
- };
-
- chart.donutRatio = function(_) {
- if (!arguments.length) return donutRatio;
- donutRatio = _;
- return chart;
- };
-
- chart.startAngle = function(_) {
- if (!arguments.length) return startAngle;
- startAngle = _;
- return chart;
- };
-
- chart.endAngle = function(_) {
- if (!arguments.length) return endAngle;
- endAngle = _;
- return chart;
- };
-
- chart.id = function(_) {
- if (!arguments.length) return id;
- id = _;
- return chart;
- };
-
- chart.color = function(_) {
- if (!arguments.length) return color;
- color = nv.utils.getColor(_);
- return chart;
- };
-
- chart.valueFormat = function(_) {
- if (!arguments.length) return valueFormat;
- valueFormat = _;
- return chart;
- };
-
- chart.labelThreshold = function(_) {
- if (!arguments.length) return labelThreshold;
- labelThreshold = _;
- return chart;
- };
- //============================================================
-
-
- return chart;
-}
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