+++ /dev/null
-
-nv.models.stackedAreaChart = function() {
- "use strict";
- //============================================================
- // Public Variables with Default Settings
- //------------------------------------------------------------
-
- var stacked = nv.models.stackedArea()
- , xAxis = nv.models.axis()
- , yAxis = nv.models.axis()
- , legend = nv.models.legend()
- , controls = nv.models.legend()
- , interactiveLayer = nv.interactiveGuideline()
- ;
-
- var margin = {top: 30, right: 25, bottom: 50, left: 60}
- , width = null
- , height = null
- , color = nv.utils.defaultColor() // a function that takes in d, i and returns color
- , showControls = true
- , showLegend = true
- , showXAxis = true
- , showYAxis = true
- , rightAlignYAxis = false
- , useInteractiveGuideline = false
- , tooltips = true
- , tooltip = function(key, x, y, e, graph) {
- return '<h3>' + key + '</h3>' +
- '<p>' + y + ' on ' + x + '</p>'
- }
- , x //can be accessed via chart.xScale()
- , y //can be accessed via chart.yScale()
- , yAxisTickFormat = d3.format(',.2f')
- , state = { style: stacked.style() }
- , defaultState = null
- , noData = 'No Data Available.'
- , dispatch = d3.dispatch('tooltipShow', 'tooltipHide', 'stateChange', 'changeState')
- , controlWidth = 250
- , cData = ['Stacked','Stream','Expanded']
- , controlLabels = {}
- , transitionDuration = 250
- ;
-
- xAxis
- .orient('bottom')
- .tickPadding(7)
- ;
- yAxis
- .orient((rightAlignYAxis) ? 'right' : 'left')
- ;
-
- controls.updateState(false);
- //============================================================
-
-
- //============================================================
- // Private Variables
- //------------------------------------------------------------
-
- var showTooltip = function(e, offsetElement) {
- var left = e.pos[0] + ( offsetElement.offsetLeft || 0 ),
- top = e.pos[1] + ( offsetElement.offsetTop || 0),
- x = xAxis.tickFormat()(stacked.x()(e.point, e.pointIndex)),
- y = yAxis.tickFormat()(stacked.y()(e.point, e.pointIndex)),
- content = tooltip(e.series.key, x, y, e, chart);
-
- nv.tooltip.show([left, top], content, e.value < 0 ? 'n' : 's', null, offsetElement);
- };
-
- //============================================================
-
-
- function chart(selection) {
- selection.each(function(data) {
- var container = d3.select(this),
- that = this;
-
- var availableWidth = (width || parseInt(container.style('width')) || 960)
- - margin.left - margin.right,
- availableHeight = (height || parseInt(container.style('height')) || 400)
- - margin.top - margin.bottom;
-
- chart.update = function() { container.transition().duration(transitionDuration).call(chart); };
- chart.container = this;
-
- //set state.disabled
- state.disabled = data.map(function(d) { return !!d.disabled });
-
- if (!defaultState) {
- var key;
- defaultState = {};
- for (key in state) {
- if (state[key] instanceof Array)
- defaultState[key] = state[key].slice(0);
- else
- defaultState[key] = state[key];
- }
- }
-
- //------------------------------------------------------------
- // Display No Data message if there's nothing to show.
-
- if (!data || !data.length || !data.filter(function(d) { return d.values.length }).length) {
- var noDataText = container.selectAll('.nv-noData').data([noData]);
-
- noDataText.enter().append('text')
- .attr('class', 'nvd3 nv-noData')
- .attr('dy', '-.7em')
- .style('text-anchor', 'middle');
-
- noDataText
- .attr('x', margin.left + availableWidth / 2)
- .attr('y', margin.top + availableHeight / 2)
- .text(function(d) { return d });
-
- return chart;
- } else {
- container.selectAll('.nv-noData').remove();
- }
-
- //------------------------------------------------------------
-
-
- //------------------------------------------------------------
- // Setup Scales
-
- x = stacked.xScale();
- y = stacked.yScale();
-
- //------------------------------------------------------------
-
-
- //------------------------------------------------------------
- // Setup containers and skeleton of chart
-
- var wrap = container.selectAll('g.nv-wrap.nv-stackedAreaChart').data([data]);
- var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-stackedAreaChart').append('g');
- var g = wrap.select('g');
-
- gEnter.append("rect").style("opacity",0);
- gEnter.append('g').attr('class', 'nv-x nv-axis');
- gEnter.append('g').attr('class', 'nv-y nv-axis');
- gEnter.append('g').attr('class', 'nv-stackedWrap');
- gEnter.append('g').attr('class', 'nv-legendWrap');
- gEnter.append('g').attr('class', 'nv-controlsWrap');
- gEnter.append('g').attr('class', 'nv-interactive');
-
- g.select("rect").attr("width",availableWidth).attr("height",availableHeight);
- //------------------------------------------------------------
- // Legend
-
- if (showLegend) {
- var legendWidth = (showControls) ? availableWidth - controlWidth : availableWidth;
- legend
- .width(legendWidth);
-
- g.select('.nv-legendWrap')
- .datum(data)
- .call(legend);
-
- if ( margin.top != legend.height()) {
- margin.top = legend.height();
- availableHeight = (height || parseInt(container.style('height')) || 400)
- - margin.top - margin.bottom;
- }
-
- g.select('.nv-legendWrap')
- .attr('transform', 'translate(' + (availableWidth-legendWidth) + ',' + (-margin.top) +')');
- }
-
- //------------------------------------------------------------
-
-
- //------------------------------------------------------------
- // Controls
-
- if (showControls) {
- var controlsData = [
- {
- key: controlLabels.stacked || 'Stacked',
- metaKey: 'Stacked',
- disabled: stacked.style() != 'stack',
- style: 'stack'
- },
- {
- key: controlLabels.stream || 'Stream',
- metaKey: 'Stream',
- disabled: stacked.style() != 'stream',
- style: 'stream'
- },
- {
- key: controlLabels.expanded || 'Expanded',
- metaKey: 'Expanded',
- disabled: stacked.style() != 'expand',
- style: 'expand'
- },
- {
- key: controlLabels.stack_percent || 'Stack %',
- metaKey: 'Stack_Percent',
- disabled: stacked.style() != 'stack_percent',
- style: 'stack_percent'
- }
- ];
-
- controlWidth = (cData.length/3) * 260;
-
- controlsData = controlsData.filter(function(d) {
- return cData.indexOf(d.metaKey) !== -1;
- })
-
- controls
- .width( controlWidth )
- .color(['#444', '#444', '#444']);
-
- g.select('.nv-controlsWrap')
- .datum(controlsData)
- .call(controls);
-
-
- if ( margin.top != Math.max(controls.height(), legend.height()) ) {
- margin.top = Math.max(controls.height(), legend.height());
- availableHeight = (height || parseInt(container.style('height')) || 400)
- - margin.top - margin.bottom;
- }
-
-
- g.select('.nv-controlsWrap')
- .attr('transform', 'translate(0,' + (-margin.top) +')');
- }
-
- //------------------------------------------------------------
-
-
- wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
-
- if (rightAlignYAxis) {
- g.select(".nv-y.nv-axis")
- .attr("transform", "translate(" + availableWidth + ",0)");
- }
-
- //------------------------------------------------------------
- // Main Chart Component(s)
-
- //------------------------------------------------------------
- //Set up interactive layer
- if (useInteractiveGuideline) {
- interactiveLayer
- .width(availableWidth)
- .height(availableHeight)
- .margin({left: margin.left, top: margin.top})
- .svgContainer(container)
- .xScale(x);
- wrap.select(".nv-interactive").call(interactiveLayer);
- }
-
- stacked
- .width(availableWidth)
- .height(availableHeight)
-
- var stackedWrap = g.select('.nv-stackedWrap')
- .datum(data);
-
- stackedWrap.transition().call(stacked);
-
- //------------------------------------------------------------
-
-
- //------------------------------------------------------------
- // Setup Axes
-
- if (showXAxis) {
- xAxis
- .scale(x)
- .ticks( availableWidth / 100 )
- .tickSize( -availableHeight, 0);
-
- g.select('.nv-x.nv-axis')
- .attr('transform', 'translate(0,' + availableHeight + ')');
-
- g.select('.nv-x.nv-axis')
- .transition().duration(0)
- .call(xAxis);
- }
-
- if (showYAxis) {
- yAxis
- .scale(y)
- .ticks(stacked.offset() == 'wiggle' ? 0 : availableHeight / 36)
- .tickSize(-availableWidth, 0)
- .setTickFormat( (stacked.style() == 'expand' || stacked.style() == 'stack_percent')
- ? d3.format('%') : yAxisTickFormat);
-
- g.select('.nv-y.nv-axis')
- .transition().duration(0)
- .call(yAxis);
- }
-
- //------------------------------------------------------------
-
-
- //============================================================
- // Event Handling/Dispatching (in chart's scope)
- //------------------------------------------------------------
-
- stacked.dispatch.on('areaClick.toggle', function(e) {
- if (data.filter(function(d) { return !d.disabled }).length === 1)
- data.forEach(function(d) {
- d.disabled = false;
- });
- else
- data.forEach(function(d,i) {
- d.disabled = (i != e.seriesIndex);
- });
-
- state.disabled = data.map(function(d) { return !!d.disabled });
- dispatch.stateChange(state);
-
- chart.update();
- });
-
- legend.dispatch.on('stateChange', function(newState) {
- state.disabled = newState.disabled;
- dispatch.stateChange(state);
- chart.update();
- });
-
- controls.dispatch.on('legendClick', function(d,i) {
- if (!d.disabled) return;
-
- controlsData = controlsData.map(function(s) {
- s.disabled = true;
- return s;
- });
- d.disabled = false;
-
- stacked.style(d.style);
-
-
- state.style = stacked.style();
- dispatch.stateChange(state);
-
- chart.update();
- });
-
-
- interactiveLayer.dispatch.on('elementMousemove', function(e) {
- stacked.clearHighlights();
- var singlePoint, pointIndex, pointXLocation, allData = [];
- data
- .filter(function(series, i) {
- series.seriesIndex = i;
- return !series.disabled;
- })
- .forEach(function(series,i) {
- pointIndex = nv.interactiveBisect(series.values, e.pointXValue, chart.x());
- stacked.highlightPoint(i, pointIndex, true);
- var point = series.values[pointIndex];
- if (typeof point === 'undefined') return;
- if (typeof singlePoint === 'undefined') singlePoint = point;
- if (typeof pointXLocation === 'undefined') pointXLocation = chart.xScale()(chart.x()(point,pointIndex));
-
- //If we are in 'expand' mode, use the stacked percent value instead of raw value.
- var tooltipValue = (stacked.style() == 'expand') ? point.display.y : chart.y()(point,pointIndex);
- allData.push({
- key: series.key,
- value: tooltipValue,
- color: color(series,series.seriesIndex),
- stackedValue: point.display
- });
- });
-
- allData.reverse();
-
- //Highlight the tooltip entry based on which stack the mouse is closest to.
- if (allData.length > 2) {
- var yValue = chart.yScale().invert(e.mouseY);
- var yDistMax = Infinity, indexToHighlight = null;
- allData.forEach(function(series,i) {
- if ( yValue >= series.stackedValue.y0 && yValue <= (series.stackedValue.y0 + series.stackedValue.y))
- {
- indexToHighlight = i;
- return;
- }
- });
- if (indexToHighlight != null)
- allData[indexToHighlight].highlight = true;
- }
-
- var xValue = xAxis.tickFormat()(chart.x()(singlePoint,pointIndex));
-
- //If we are in 'expand' mode, force the format to be a percentage.
- var valueFormatter = (stacked.style() == 'expand') ?
- function(d,i) {return d3.format(".1%")(d);} :
- function(d,i) {return yAxis.tickFormat()(d); };
- interactiveLayer.tooltip
- .position({left: pointXLocation + margin.left, top: e.mouseY + margin.top})
- .chartContainer(that.parentNode)
- .enabled(tooltips)
- .valueFormatter(valueFormatter)
- .data(
- {
- value: xValue,
- series: allData
- }
- )();
-
- interactiveLayer.renderGuideLine(pointXLocation);
-
- });
-
- interactiveLayer.dispatch.on("elementMouseout",function(e) {
- dispatch.tooltipHide();
- stacked.clearHighlights();
- });
-
-
- dispatch.on('tooltipShow', function(e) {
- if (tooltips) showTooltip(e, that.parentNode);
- });
-
- // Update chart from a state object passed to event handler
- dispatch.on('changeState', function(e) {
-
- if (typeof e.disabled !== 'undefined') {
- data.forEach(function(series,i) {
- series.disabled = e.disabled[i];
- });
-
- state.disabled = e.disabled;
- }
-
- if (typeof e.style !== 'undefined') {
- stacked.style(e.style);
- }
-
- chart.update();
- });
-
- });
-
-
- return chart;
- }
-
-
- //============================================================
- // Event Handling/Dispatching (out of chart's scope)
- //------------------------------------------------------------
-
- stacked.dispatch.on('tooltipShow', function(e) {
- //disable tooltips when value ~= 0
- //// TODO: consider removing points from voronoi that have 0 value instead of this hack
- /*
- if (!Math.round(stacked.y()(e.point) * 100)) { // 100 will not be good for very small numbers... will have to think about making this valu dynamic, based on data range
- setTimeout(function() { d3.selectAll('.point.hover').classed('hover', false) }, 0);
- return false;
- }
- */
-
- e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top],
- dispatch.tooltipShow(e);
- });
-
- stacked.dispatch.on('tooltipHide', function(e) {
- dispatch.tooltipHide(e);
- });
-
- dispatch.on('tooltipHide', function() {
- if (tooltips) nv.tooltip.cleanup();
- });
-
- //============================================================
-
-
- //============================================================
- // Expose Public Variables
- //------------------------------------------------------------
-
- // expose chart's sub-components
- chart.dispatch = dispatch;
- chart.stacked = stacked;
- chart.legend = legend;
- chart.controls = controls;
- chart.xAxis = xAxis;
- chart.yAxis = yAxis;
- chart.interactiveLayer = interactiveLayer;
-
- d3.rebind(chart, stacked, 'x', 'y', 'size', 'xScale', 'yScale', 'xDomain', 'yDomain', 'xRange', 'yRange', 'sizeDomain', 'interactive', 'useVoronoi', 'offset', 'order', 'style', 'clipEdge', 'forceX', 'forceY', 'forceSize', 'interpolate');
-
- 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.color = function(_) {
- if (!arguments.length) return color;
- color = nv.utils.getColor(_);
- legend.color(color);
- stacked.color(color);
- return chart;
- };
-
- chart.showControls = function(_) {
- if (!arguments.length) return showControls;
- showControls = _;
- return chart;
- };
-
- chart.showLegend = function(_) {
- if (!arguments.length) return showLegend;
- showLegend = _;
- return chart;
- };
-
- chart.showXAxis = function(_) {
- if (!arguments.length) return showXAxis;
- showXAxis = _;
- return chart;
- };
-
- chart.showYAxis = function(_) {
- if (!arguments.length) return showYAxis;
- showYAxis = _;
- return chart;
- };
-
- chart.rightAlignYAxis = function(_) {
- if(!arguments.length) return rightAlignYAxis;
- rightAlignYAxis = _;
- yAxis.orient( (_) ? 'right' : 'left');
- return chart;
- };
-
- chart.useInteractiveGuideline = function(_) {
- if(!arguments.length) return useInteractiveGuideline;
- useInteractiveGuideline = _;
- if (_ === true) {
- chart.interactive(false);
- chart.useVoronoi(false);
- }
- return chart;
- };
-
- chart.tooltip = function(_) {
- if (!arguments.length) return tooltip;
- tooltip = _;
- return chart;
- };
-
- chart.tooltips = function(_) {
- if (!arguments.length) return tooltips;
- tooltips = _;
- return chart;
- };
-
- chart.tooltipContent = function(_) {
- if (!arguments.length) return tooltip;
- tooltip = _;
- return chart;
- };
-
- chart.state = function(_) {
- if (!arguments.length) return state;
- state = _;
- return chart;
- };
-
- chart.defaultState = function(_) {
- if (!arguments.length) return defaultState;
- defaultState = _;
- return chart;
- };
-
- chart.noData = function(_) {
- if (!arguments.length) return noData;
- noData = _;
- return chart;
- };
-
- chart.transitionDuration = function(_) {
- if (!arguments.length) return transitionDuration;
- transitionDuration = _;
- return chart;
- };
-
- chart.controlsData = function(_) {
- if (!arguments.length) return cData;
- cData = _;
- return chart;
- };
-
- chart.controlLabels = function(_) {
- if (!arguments.length) return controlLabels;
- if (typeof _ !== 'object') return controlLabels;
- controlLabels = _;
- return chart;
- };
-
- yAxis.setTickFormat = yAxis.tickFormat;
-
- yAxis.tickFormat = function(_) {
- if (!arguments.length) return yAxisTickFormat;
- yAxisTickFormat = _;
- return yAxis;
- };
-
-
- //============================================================
-
- return chart;
-}
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