+++ /dev/null
-
-nv.models.stackedArea = function() {
- "use strict";
- //============================================================
- // Public Variables with Default Settings
- //------------------------------------------------------------
-
- var margin = {top: 0, right: 0, bottom: 0, left: 0}
- , width = 960
- , height = 500
- , color = nv.utils.defaultColor() // a function that computes the color
- , id = Math.floor(Math.random() * 100000) //Create semi-unique ID incase user doesn't selet one
- , getX = function(d) { return d.x } // accessor to get the x value from a data point
- , getY = function(d) { return d.y } // accessor to get the y value from a data point
- , style = 'stack'
- , offset = 'zero'
- , order = 'default'
- , interpolate = 'linear' // controls the line interpolation
- , clipEdge = false // if true, masks lines within x and y scale
- , x //can be accessed via chart.xScale()
- , y //can be accessed via chart.yScale()
- , scatter = nv.models.scatter()
- , dispatch = d3.dispatch('tooltipShow', 'tooltipHide', 'areaClick', 'areaMouseover', 'areaMouseout')
- ;
-
- scatter
- .size(2.2) // default size
- .sizeDomain([2.2,2.2]) // all the same size by default
- ;
-
- /************************************
- * offset:
- * 'wiggle' (stream)
- * 'zero' (stacked)
- * 'expand' (normalize to 100%)
- * 'silhouette' (simple centered)
- *
- * order:
- * 'inside-out' (stream)
- * 'default' (input order)
- ************************************/
-
- //============================================================
-
-
- function chart(selection) {
- selection.each(function(data) {
- var availableWidth = width - margin.left - margin.right,
- availableHeight = height - margin.top - margin.bottom,
- container = d3.select(this);
-
- //------------------------------------------------------------
- // Setup Scales
-
- x = scatter.xScale();
- y = scatter.yScale();
-
- //------------------------------------------------------------
-
- var dataRaw = data;
- // Injecting point index into each point because d3.layout.stack().out does not give index
- data.forEach(function(aseries, i) {
- aseries.seriesIndex = i;
- aseries.values = aseries.values.map(function(d, j) {
- d.index = j;
- d.seriesIndex = i;
- return d;
- });
- });
-
- var dataFiltered = data.filter(function(series) {
- return !series.disabled;
- });
-
- data = d3.layout.stack()
- .order(order)
- .offset(offset)
- .values(function(d) { return d.values }) //TODO: make values customizeable in EVERY model in this fashion
- .x(getX)
- .y(getY)
- .out(function(d, y0, y) {
- var yHeight = (getY(d) === 0) ? 0 : y;
- d.display = {
- y: yHeight,
- y0: y0
- };
- })
- (dataFiltered);
-
-
- //------------------------------------------------------------
- // Setup containers and skeleton of chart
-
- var wrap = container.selectAll('g.nv-wrap.nv-stackedarea').data([data]);
- var wrapEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-stackedarea');
- var defsEnter = wrapEnter.append('defs');
- var gEnter = wrapEnter.append('g');
- var g = wrap.select('g');
-
- gEnter.append('g').attr('class', 'nv-areaWrap');
- gEnter.append('g').attr('class', 'nv-scatterWrap');
-
- wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
-
- //------------------------------------------------------------
-
-
- scatter
- .width(availableWidth)
- .height(availableHeight)
- .x(getX)
- .y(function(d) { return d.display.y + d.display.y0 })
- .forceY([0])
- .color(data.map(function(d,i) {
- return d.color || color(d, d.seriesIndex);
- }));
-
-
- var scatterWrap = g.select('.nv-scatterWrap')
- .datum(data);
-
- scatterWrap.call(scatter);
-
- defsEnter.append('clipPath')
- .attr('id', 'nv-edge-clip-' + id)
- .append('rect');
-
- wrap.select('#nv-edge-clip-' + id + ' rect')
- .attr('width', availableWidth)
- .attr('height', availableHeight);
-
- g .attr('clip-path', clipEdge ? 'url(#nv-edge-clip-' + id + ')' : '');
-
- var area = d3.svg.area()
- .x(function(d,i) { return x(getX(d,i)) })
- .y0(function(d) {
- return y(d.display.y0)
- })
- .y1(function(d) {
- return y(d.display.y + d.display.y0)
- })
- .interpolate(interpolate);
-
- var zeroArea = d3.svg.area()
- .x(function(d,i) { return x(getX(d,i)) })
- .y0(function(d) { return y(d.display.y0) })
- .y1(function(d) { return y(d.display.y0) });
-
-
- var path = g.select('.nv-areaWrap').selectAll('path.nv-area')
- .data(function(d) { return d });
-
- path.enter().append('path').attr('class', function(d,i) { return 'nv-area nv-area-' + i })
- .attr('d', function(d,i){
- return zeroArea(d.values, d.seriesIndex);
- })
- .on('mouseover', function(d,i) {
- d3.select(this).classed('hover', true);
- dispatch.areaMouseover({
- point: d,
- series: d.key,
- pos: [d3.event.pageX, d3.event.pageY],
- seriesIndex: i
- });
- })
- .on('mouseout', function(d,i) {
- d3.select(this).classed('hover', false);
- dispatch.areaMouseout({
- point: d,
- series: d.key,
- pos: [d3.event.pageX, d3.event.pageY],
- seriesIndex: i
- });
- })
- .on('click', function(d,i) {
- d3.select(this).classed('hover', false);
- dispatch.areaClick({
- point: d,
- series: d.key,
- pos: [d3.event.pageX, d3.event.pageY],
- seriesIndex: i
- });
- })
- path.exit().transition()
- .attr('d', function(d,i) { return zeroArea(d.values,i) })
- .remove();
- path
- .style('fill', function(d,i){
- return d.color || color(d, d.seriesIndex)
- })
- .style('stroke', function(d,i){ return d.color || color(d, d.seriesIndex) });
- path.transition()
- .attr('d', function(d,i) {
- return area(d.values,i)
- });
-
-
-
- //============================================================
- // Event Handling/Dispatching (in chart's scope)
- //------------------------------------------------------------
-
- scatter.dispatch.on('elementMouseover.area', function(e) {
- g.select('.nv-chart-' + id + ' .nv-area-' + e.seriesIndex).classed('hover', true);
- });
- scatter.dispatch.on('elementMouseout.area', function(e) {
- g.select('.nv-chart-' + id + ' .nv-area-' + e.seriesIndex).classed('hover', false);
- });
-
- //============================================================
- //Special offset functions
- chart.d3_stackedOffset_stackPercent = function(stackData) {
- var n = stackData.length, //How many series
- m = stackData[0].length, //how many points per series
- k = 1 / n,
- i,
- j,
- o,
- y0 = [];
-
- for (j = 0; j < m; ++j) { //Looping through all points
- for (i = 0, o = 0; i < dataRaw.length; i++) //looping through series'
- o += getY(dataRaw[i].values[j]) //total value of all points at a certian point in time.
-
- if (o) for (i = 0; i < n; i++)
- stackData[i][j][1] /= o;
- else
- for (i = 0; i < n; i++)
- stackData[i][j][1] = k;
- }
- for (j = 0; j < m; ++j) y0[j] = 0;
- return y0;
- };
-
- });
-
-
- return chart;
- }
-
-
- //============================================================
- // Event Handling/Dispatching (out of chart's scope)
- //------------------------------------------------------------
-
- scatter.dispatch.on('elementClick.area', function(e) {
- dispatch.areaClick(e);
- })
- scatter.dispatch.on('elementMouseover.tooltip', function(e) {
- e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top],
- dispatch.tooltipShow(e);
- });
- scatter.dispatch.on('elementMouseout.tooltip', function(e) {
- dispatch.tooltipHide(e);
- });
-
- //============================================================
-
- //============================================================
- // Global getters and setters
- //------------------------------------------------------------
-
- chart.dispatch = dispatch;
- chart.scatter = scatter;
-
- d3.rebind(chart, scatter, 'interactive', 'size', 'xScale', 'yScale', 'zScale', 'xDomain', 'yDomain', 'xRange', 'yRange',
- 'sizeDomain', 'forceX', 'forceY', 'forceSize', 'clipVoronoi', 'useVoronoi','clipRadius','highlightPoint','clearHighlights');
-
- chart.options = nv.utils.optionsFunc.bind(chart);
-
- chart.x = function(_) {
- if (!arguments.length) return getX;
- getX = d3.functor(_);
- return chart;
- };
-
- chart.y = function(_) {
- if (!arguments.length) return getY;
- getY = d3.functor(_);
- return 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.clipEdge = function(_) {
- if (!arguments.length) return clipEdge;
- clipEdge = _;
- return chart;
- };
-
- chart.color = function(_) {
- if (!arguments.length) return color;
- color = nv.utils.getColor(_);
- return chart;
- };
-
- chart.offset = function(_) {
- if (!arguments.length) return offset;
- offset = _;
- return chart;
- };
-
- chart.order = function(_) {
- if (!arguments.length) return order;
- order = _;
- return chart;
- };
-
- //shortcut for offset + order
- chart.style = function(_) {
- if (!arguments.length) return style;
- style = _;
-
- switch (style) {
- case 'stack':
- chart.offset('zero');
- chart.order('default');
- break;
- case 'stream':
- chart.offset('wiggle');
- chart.order('inside-out');
- break;
- case 'stream-center':
- chart.offset('silhouette');
- chart.order('inside-out');
- break;
- case 'expand':
- chart.offset('expand');
- chart.order('default');
- break;
- case 'stack_percent':
- chart.offset(chart.d3_stackedOffset_stackPercent);
- chart.order('default');
- break;
- }
-
- return chart;
- };
-
- chart.interpolate = function(_) {
- if (!arguments.length) return interpolate;
- interpolate = _;
- return chart;
- };
- //============================================================
-
-
- return chart;
-}
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