2 nv.models.multiBarHorizontal = function() {
4 //============================================================
5 // Public Variables with Default Settings
6 //------------------------------------------------------------
8 var margin = {top: 0, right: 0, bottom: 0, left: 0}
11 , id = Math.floor(Math.random() * 10000) //Create semi-unique ID in case user doesn't select one
12 , x = d3.scale.ordinal()
13 , y = d3.scale.linear()
14 , getX = function(d) { return d.x }
15 , getY = function(d) { return d.y }
16 , forceY = [0] // 0 is forced by default.. this makes sense for the majority of bar graphs... user can always do chart.forceY([]) to remove
17 , color = nv.utils.defaultColor()
18 , barColor = null // adding the ability to set the color for each rather than the whole group
19 , disabled // used in conjunction with barColor to communicate from multiBarHorizontalChart what series are disabled
23 , valueFormat = d3.format(',.2f')
29 , dispatch = d3.dispatch('chartClick', 'elementClick', 'elementDblClick', 'elementMouseover', 'elementMouseout')
32 //============================================================
35 //============================================================
37 //------------------------------------------------------------
39 var x0, y0 //used to store previous scales
42 //============================================================
45 function chart(selection) {
46 selection.each(function(data) {
47 var availableWidth = width - margin.left - margin.right,
48 availableHeight = height - margin.top - margin.bottom,
49 container = d3.select(this);
53 data = d3.layout.stack()
55 .values(function(d){ return d.values })
60 //add series index to each data point for reference
61 data.forEach(function(series, i) {
62 series.values.forEach(function(point) {
69 //------------------------------------------------------------
70 // HACK for negative value stacking
72 data[0].values.map(function(d,i) {
73 var posBase = 0, negBase = 0;
74 data.map(function(d) {
76 f.size = Math.abs(f.y);
78 f.y1 = negBase - f.size;
79 negBase = negBase - f.size;
83 posBase = posBase + f.size;
90 //------------------------------------------------------------
93 // remap and flatten the data for use in calculating the scales' domains
94 var seriesData = (xDomain && yDomain) ? [] : // if we know xDomain and yDomain, no need to calculate
95 data.map(function(d) {
96 return d.values.map(function(d,i) {
97 return { x: getX(d,i), y: getY(d,i), y0: d.y0, y1: d.y1 }
101 x .domain(xDomain || d3.merge(seriesData).map(function(d) { return d.x }))
102 .rangeBands(xRange || [0, availableHeight], .1);
104 //y .domain(yDomain || d3.extent(d3.merge(seriesData).map(function(d) { return d.y + (stacked ? d.y0 : 0) }).concat(forceY)))
105 y .domain(yDomain || d3.extent(d3.merge(seriesData).map(function(d) { return stacked ? (d.y > 0 ? d.y1 + d.y : d.y1 ) : d.y }).concat(forceY)))
107 if (showValues && !stacked)
108 y.range(yRange || [(y.domain()[0] < 0 ? valuePadding : 0), availableWidth - (y.domain()[1] > 0 ? valuePadding : 0) ]);
110 y.range(yRange || [0, availableWidth]);
113 y0 = y0 || d3.scale.linear().domain(y.domain()).range([y(0),y(0)]);
115 //------------------------------------------------------------
118 //------------------------------------------------------------
119 // Setup containers and skeleton of chart
121 var wrap = d3.select(this).selectAll('g.nv-wrap.nv-multibarHorizontal').data([data]);
122 var wrapEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-multibarHorizontal');
123 var defsEnter = wrapEnter.append('defs');
124 var gEnter = wrapEnter.append('g');
125 var g = wrap.select('g');
127 gEnter.append('g').attr('class', 'nv-groups');
129 wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
131 //------------------------------------------------------------
135 var groups = wrap.select('.nv-groups').selectAll('.nv-group')
136 .data(function(d) { return d }, function(d,i) { return i });
137 groups.enter().append('g')
138 .style('stroke-opacity', 1e-6)
139 .style('fill-opacity', 1e-6);
140 groups.exit().transition()
141 .style('stroke-opacity', 1e-6)
142 .style('fill-opacity', 1e-6)
145 .attr('class', function(d,i) { return 'nv-group nv-series-' + i })
146 .classed('hover', function(d) { return d.hover })
147 .style('fill', function(d,i){ return color(d, i) })
148 .style('stroke', function(d,i){ return color(d, i) });
150 .style('stroke-opacity', 1)
151 .style('fill-opacity', .75);
154 var bars = groups.selectAll('g.nv-bar')
155 .data(function(d) { return d.values });
157 bars.exit().remove();
160 var barsEnter = bars.enter().append('g')
161 .attr('transform', function(d,i,j) {
162 return 'translate(' + y0(stacked ? d.y0 : 0) + ',' + (stacked ? 0 : (j * x.rangeBand() / data.length ) + x(getX(d,i))) + ')'
165 barsEnter.append('rect')
167 .attr('height', x.rangeBand() / (stacked ? 1 : data.length) )
170 .on('mouseover', function(d,i) { //TODO: figure out why j works above, but not here
171 d3.select(this).classed('hover', true);
172 dispatch.elementMouseover({
175 series: data[d.series],
176 pos: [ y(getY(d,i) + (stacked ? d.y0 : 0)), x(getX(d,i)) + (x.rangeBand() * (stacked ? data.length / 2 : d.series + .5) / data.length) ],
178 seriesIndex: d.series,
182 .on('mouseout', function(d,i) {
183 d3.select(this).classed('hover', false);
184 dispatch.elementMouseout({
187 series: data[d.series],
189 seriesIndex: d.series,
193 .on('click', function(d,i) {
194 dispatch.elementClick({
197 series: data[d.series],
198 pos: [x(getX(d,i)) + (x.rangeBand() * (stacked ? data.length / 2 : d.series + .5) / data.length), y(getY(d,i) + (stacked ? d.y0 : 0))], // TODO: Figure out why the value appears to be shifted
200 seriesIndex: d.series,
203 d3.event.stopPropagation();
205 .on('dblclick', function(d,i) {
206 dispatch.elementDblClick({
209 series: data[d.series],
210 pos: [x(getX(d,i)) + (x.rangeBand() * (stacked ? data.length / 2 : d.series + .5) / data.length), y(getY(d,i) + (stacked ? d.y0 : 0))], // TODO: Figure out why the value appears to be shifted
212 seriesIndex: d.series,
215 d3.event.stopPropagation();
219 barsEnter.append('text');
221 if (showValues && !stacked) {
223 .attr('text-anchor', function(d,i) { return getY(d,i) < 0 ? 'end' : 'start' })
224 .attr('y', x.rangeBand() / (data.length * 2))
226 .text(function(d,i) { return valueFormat(getY(d,i)) })
229 .attr('x', function(d,i) { return getY(d,i) < 0 ? -4 : y(getY(d,i)) - y(0) + 4 })
231 bars.selectAll('text').text('');
235 .attr('class', function(d,i) { return getY(d,i) < 0 ? 'nv-bar negative' : 'nv-bar positive'})
238 if (!disabled) disabled = data.map(function() { return true });
240 .style('fill', function(d,i,j) { return d3.rgb(barColor(d,i)).darker( disabled.map(function(d,i) { return i }).filter(function(d,i){ return !disabled[i] })[j] ).toString(); })
241 .style('stroke', function(d,i,j) { return d3.rgb(barColor(d,i)).darker( disabled.map(function(d,i) { return i }).filter(function(d,i){ return !disabled[i] })[j] ).toString(); });
246 .attr('transform', function(d,i) {
247 return 'translate(' + y(d.y1) + ',' + x(getX(d,i)) + ')'
250 .attr('width', function(d,i) {
251 return Math.abs(y(getY(d,i) + d.y0) - y(d.y0))
253 .attr('height', x.rangeBand() );
256 .attr('transform', function(d,i) {
257 //TODO: stacked must be all positive or all negative, not both?
258 return 'translate(' +
259 (getY(d,i) < 0 ? y(getY(d,i)) : y(0))
261 (d.series * x.rangeBand() / data.length
267 .attr('height', x.rangeBand() / data.length )
268 .attr('width', function(d,i) {
269 return Math.max(Math.abs(y(getY(d,i)) - y(0)),1)
273 //store old scales for use in transitions on update
283 //============================================================
284 // Expose Public Variables
285 //------------------------------------------------------------
287 chart.dispatch = dispatch;
289 chart.options = nv.utils.optionsFunc.bind(chart);
291 chart.x = function(_) {
292 if (!arguments.length) return getX;
297 chart.y = function(_) {
298 if (!arguments.length) return getY;
303 chart.margin = function(_) {
304 if (!arguments.length) return margin;
305 margin.top = typeof _.top != 'undefined' ? _.top : margin.top;
306 margin.right = typeof _.right != 'undefined' ? _.right : margin.right;
307 margin.bottom = typeof _.bottom != 'undefined' ? _.bottom : margin.bottom;
308 margin.left = typeof _.left != 'undefined' ? _.left : margin.left;
312 chart.width = function(_) {
313 if (!arguments.length) return width;
318 chart.height = function(_) {
319 if (!arguments.length) return height;
324 chart.xScale = function(_) {
325 if (!arguments.length) return x;
330 chart.yScale = function(_) {
331 if (!arguments.length) return y;
336 chart.xDomain = function(_) {
337 if (!arguments.length) return xDomain;
342 chart.yDomain = function(_) {
343 if (!arguments.length) return yDomain;
348 chart.xRange = function(_) {
349 if (!arguments.length) return xRange;
354 chart.yRange = function(_) {
355 if (!arguments.length) return yRange;
360 chart.forceY = function(_) {
361 if (!arguments.length) return forceY;
366 chart.stacked = function(_) {
367 if (!arguments.length) return stacked;
372 chart.color = function(_) {
373 if (!arguments.length) return color;
374 color = nv.utils.getColor(_);
378 chart.barColor = function(_) {
379 if (!arguments.length) return barColor;
380 barColor = nv.utils.getColor(_);
384 chart.disabled = function(_) {
385 if (!arguments.length) return disabled;
390 chart.id = function(_) {
391 if (!arguments.length) return id;
396 chart.delay = function(_) {
397 if (!arguments.length) return delay;
402 chart.showValues = function(_) {
403 if (!arguments.length) return showValues;
408 chart.valueFormat= function(_) {
409 if (!arguments.length) return valueFormat;
414 chart.valuePadding = function(_) {
415 if (!arguments.length) return valuePadding;
420 //============================================================