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631 lines
19 KiB
JavaScript
631 lines
19 KiB
JavaScript
nv.models.scatterChart = function() {
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"use strict";
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//============================================================
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// Public Variables with Default Settings
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//------------------------------------------------------------
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var scatter = nv.models.scatter()
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, xAxis = nv.models.axis()
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, yAxis = nv.models.axis()
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, legend = nv.models.legend()
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, controls = nv.models.legend()
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, distX = nv.models.distribution()
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, distY = nv.models.distribution()
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;
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var margin = {top: 30, right: 20, bottom: 50, left: 75}
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, width = null
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, height = null
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, color = nv.utils.defaultColor()
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, x = d3.fisheye ? d3.fisheye.scale(d3.scale.linear).distortion(0) : scatter.xScale()
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, y = d3.fisheye ? d3.fisheye.scale(d3.scale.linear).distortion(0) : scatter.yScale()
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, xPadding = 0
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, yPadding = 0
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, showDistX = false
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, showDistY = false
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, showLegend = true
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, showXAxis = true
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, showYAxis = true
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, rightAlignYAxis = false
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, showControls = !!d3.fisheye
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, fisheye = 0
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, pauseFisheye = false
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, tooltips = true
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, tooltipX = function(key, x, y) { return '<strong>' + x + '</strong>' }
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, tooltipY = function(key, x, y) { return '<strong>' + y + '</strong>' }
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, tooltip = null
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, state = {}
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, defaultState = null
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, dispatch = d3.dispatch('tooltipShow', 'tooltipHide', 'stateChange', 'changeState')
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, noData = "No Data Available."
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;
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scatter
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.xScale(x)
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.yScale(y)
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;
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xAxis
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.orient('bottom')
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.tickPadding(10)
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;
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yAxis
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.orient((rightAlignYAxis) ? 'right' : 'left')
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.tickPadding(10)
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;
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distX
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.axis('x')
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;
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distY
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.axis('y')
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;
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controls.updateState(false);
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//============================================================
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//============================================================
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// Private Variables
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//------------------------------------------------------------
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var x0, y0;
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var showTooltip = function(e, offsetElement) {
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//TODO: make tooltip style an option between single or dual on axes (maybe on all charts with axes?)
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var left = e.pos[0] + ( offsetElement.offsetLeft || 0 ),
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top = e.pos[1] + ( offsetElement.offsetTop || 0),
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leftX = e.pos[0] + ( offsetElement.offsetLeft || 0 ),
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topX = y.range()[0] + margin.top + ( offsetElement.offsetTop || 0),
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leftY = x.range()[0] + margin.left + ( offsetElement.offsetLeft || 0 ),
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topY = e.pos[1] + ( offsetElement.offsetTop || 0),
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xVal = xAxis.tickFormat()(scatter.x()(e.point, e.pointIndex)),
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yVal = yAxis.tickFormat()(scatter.y()(e.point, e.pointIndex));
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if( tooltipX != null )
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nv.tooltip.show([leftX, topX], tooltipX(e.series.key, xVal, yVal, e, chart), 'n', 1, offsetElement, 'x-nvtooltip');
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if( tooltipY != null )
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nv.tooltip.show([leftY, topY], tooltipY(e.series.key, xVal, yVal, e, chart), 'e', 1, offsetElement, 'y-nvtooltip');
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if( tooltip != null )
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nv.tooltip.show([left, top], tooltip(e.series.key, xVal, yVal, e, chart), e.value < 0 ? 'n' : 's', null, offsetElement);
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};
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var controlsData = [
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{ key: 'Magnify', disabled: true }
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];
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//============================================================
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function chart(selection) {
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selection.each(function(data) {
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var container = d3.select(this),
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that = this;
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var availableWidth = (width || parseInt(container.style('width')) || 960)
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- margin.left - margin.right,
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availableHeight = (height || parseInt(container.style('height')) || 400)
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- margin.top - margin.bottom;
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chart.update = function() { container.transition().call(chart); };
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chart.container = this;
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//set state.disabled
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state.disabled = data.map(function(d) { return !!d.disabled });
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if (!defaultState) {
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var key;
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defaultState = {};
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for (key in state) {
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if (state[key] instanceof Array)
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defaultState[key] = state[key].slice(0);
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else
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defaultState[key] = state[key];
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}
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}
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//------------------------------------------------------------
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// Display noData message if there's nothing to show.
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if (!data || !data.length || !data.filter(function(d) { return d.values.length }).length) {
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var noDataText = container.selectAll('.nv-noData').data([noData]);
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noDataText.enter().append('text')
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.attr('class', 'nvd3 nv-noData')
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.attr('dy', '-.7em')
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.style('text-anchor', 'middle');
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noDataText
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.attr('x', margin.left + availableWidth / 2)
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.attr('y', margin.top + availableHeight / 2)
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.text(function(d) { return d });
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return chart;
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} else {
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container.selectAll('.nv-noData').remove();
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}
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//------------------------------------------------------------
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//------------------------------------------------------------
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// Setup Scales
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x0 = x0 || x;
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y0 = y0 || y;
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//------------------------------------------------------------
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//------------------------------------------------------------
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// Setup containers and skeleton of chart
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var wrap = container.selectAll('g.nv-wrap.nv-scatterChart').data([data]);
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var wrapEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-scatterChart nv-chart-' + scatter.id());
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var gEnter = wrapEnter.append('g');
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var g = wrap.select('g');
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// background for pointer events
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gEnter.append('rect').attr('class', 'nvd3 nv-background');
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gEnter.append('g').attr('class', 'nv-x nv-axis');
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gEnter.append('g').attr('class', 'nv-y nv-axis');
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gEnter.append('g').attr('class', 'nv-scatterWrap');
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gEnter.append('g').attr('class', 'nv-distWrap');
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gEnter.append('g').attr('class', 'nv-legendWrap');
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gEnter.append('g').attr('class', 'nv-controlsWrap');
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//------------------------------------------------------------
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//------------------------------------------------------------
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// Legend
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if (showLegend) {
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var legendWidth = (showControls) ? availableWidth / 2 : availableWidth;
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legend.width(legendWidth);
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wrap.select('.nv-legendWrap')
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.datum(data)
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.call(legend);
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if ( margin.top != legend.height()) {
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margin.top = legend.height();
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availableHeight = (height || parseInt(container.style('height')) || 400)
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- margin.top - margin.bottom;
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}
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wrap.select('.nv-legendWrap')
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.attr('transform', 'translate(' + (availableWidth - legendWidth) + ',' + (-margin.top) +')');
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}
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//------------------------------------------------------------
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//------------------------------------------------------------
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// Controls
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if (showControls) {
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controls.width(180).color(['#444']);
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g.select('.nv-controlsWrap')
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.datum(controlsData)
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.attr('transform', 'translate(0,' + (-margin.top) +')')
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.call(controls);
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}
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//------------------------------------------------------------
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wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
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if (rightAlignYAxis) {
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g.select(".nv-y.nv-axis")
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.attr("transform", "translate(" + availableWidth + ",0)");
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}
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//------------------------------------------------------------
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// Main Chart Component(s)
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scatter
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.width(availableWidth)
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.height(availableHeight)
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.color(data.map(function(d,i) {
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return d.color || color(d, i);
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}).filter(function(d,i) { return !data[i].disabled }));
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if (xPadding !== 0)
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scatter.xDomain(null);
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if (yPadding !== 0)
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scatter.yDomain(null);
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wrap.select('.nv-scatterWrap')
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.datum(data.filter(function(d) { return !d.disabled }))
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.call(scatter);
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//Adjust for x and y padding
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if (xPadding !== 0) {
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var xRange = x.domain()[1] - x.domain()[0];
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scatter.xDomain([x.domain()[0] - (xPadding * xRange), x.domain()[1] + (xPadding * xRange)]);
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}
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if (yPadding !== 0) {
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var yRange = y.domain()[1] - y.domain()[0];
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scatter.yDomain([y.domain()[0] - (yPadding * yRange), y.domain()[1] + (yPadding * yRange)]);
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}
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//Only need to update the scatter again if x/yPadding changed the domain.
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if (yPadding !== 0 || xPadding !== 0) {
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wrap.select('.nv-scatterWrap')
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.datum(data.filter(function(d) { return !d.disabled }))
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.call(scatter);
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}
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//------------------------------------------------------------
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//------------------------------------------------------------
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// Setup Axes
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if (showXAxis) {
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xAxis
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.scale(x)
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.ticks( xAxis.ticks() && xAxis.ticks().length ? xAxis.ticks() : availableWidth / 100 )
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.tickSize( -availableHeight , 0);
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g.select('.nv-x.nv-axis')
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.attr('transform', 'translate(0,' + y.range()[0] + ')')
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.call(xAxis);
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}
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if (showYAxis) {
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yAxis
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.scale(y)
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.ticks( yAxis.ticks() && yAxis.ticks().length ? yAxis.ticks() : availableHeight / 36 )
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.tickSize( -availableWidth, 0);
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g.select('.nv-y.nv-axis')
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.call(yAxis);
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}
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if (showDistX) {
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distX
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.getData(scatter.x())
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.scale(x)
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.width(availableWidth)
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.color(data.map(function(d,i) {
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return d.color || color(d, i);
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}).filter(function(d,i) { return !data[i].disabled }));
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gEnter.select('.nv-distWrap').append('g')
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.attr('class', 'nv-distributionX');
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g.select('.nv-distributionX')
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.attr('transform', 'translate(0,' + y.range()[0] + ')')
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.datum(data.filter(function(d) { return !d.disabled }))
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.call(distX);
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}
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if (showDistY) {
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distY
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.getData(scatter.y())
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.scale(y)
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.width(availableHeight)
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.color(data.map(function(d,i) {
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return d.color || color(d, i);
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}).filter(function(d,i) { return !data[i].disabled }));
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gEnter.select('.nv-distWrap').append('g')
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.attr('class', 'nv-distributionY');
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g.select('.nv-distributionY')
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.attr('transform',
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'translate(' + (rightAlignYAxis ? availableWidth : -distY.size() ) + ',0)')
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.datum(data.filter(function(d) { return !d.disabled }))
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.call(distY);
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}
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//------------------------------------------------------------
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if (d3.fisheye) {
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g.select('.nv-background')
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.attr('width', availableWidth)
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.attr('height', availableHeight);
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g.select('.nv-background').on('mousemove', updateFisheye);
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g.select('.nv-background').on('click', function() { pauseFisheye = !pauseFisheye;});
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scatter.dispatch.on('elementClick.freezeFisheye', function() {
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pauseFisheye = !pauseFisheye;
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});
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}
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function updateFisheye() {
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if (pauseFisheye) {
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g.select('.nv-point-paths').style('pointer-events', 'all');
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return false;
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}
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g.select('.nv-point-paths').style('pointer-events', 'none' );
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var mouse = d3.mouse(this);
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x.distortion(fisheye).focus(mouse[0]);
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y.distortion(fisheye).focus(mouse[1]);
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g.select('.nv-scatterWrap')
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.call(scatter);
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if (showXAxis)
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g.select('.nv-x.nv-axis').call(xAxis);
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if (showYAxis)
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g.select('.nv-y.nv-axis').call(yAxis);
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g.select('.nv-distributionX')
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.datum(data.filter(function(d) { return !d.disabled }))
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.call(distX);
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g.select('.nv-distributionY')
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.datum(data.filter(function(d) { return !d.disabled }))
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.call(distY);
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}
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//============================================================
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// Event Handling/Dispatching (in chart's scope)
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//------------------------------------------------------------
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controls.dispatch.on('legendClick', function(d,i) {
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d.disabled = !d.disabled;
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fisheye = d.disabled ? 0 : 2.5;
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g.select('.nv-background') .style('pointer-events', d.disabled ? 'none' : 'all');
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g.select('.nv-point-paths').style('pointer-events', d.disabled ? 'all' : 'none' );
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if (d.disabled) {
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x.distortion(fisheye).focus(0);
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y.distortion(fisheye).focus(0);
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g.select('.nv-scatterWrap').call(scatter);
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g.select('.nv-x.nv-axis').call(xAxis);
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g.select('.nv-y.nv-axis').call(yAxis);
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} else {
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pauseFisheye = false;
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}
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chart.update();
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});
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legend.dispatch.on('stateChange', function(newState) {
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state.disabled = newState.disabled;
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dispatch.stateChange(state);
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chart.update();
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});
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scatter.dispatch.on('elementMouseover.tooltip', function(e) {
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d3.select('.nv-chart-' + scatter.id() + ' .nv-series-' + e.seriesIndex + ' .nv-distx-' + e.pointIndex)
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.attr('y1', function(d,i) { return e.pos[1] - availableHeight;});
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d3.select('.nv-chart-' + scatter.id() + ' .nv-series-' + e.seriesIndex + ' .nv-disty-' + e.pointIndex)
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.attr('x2', e.pos[0] + distX.size());
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e.pos = [e.pos[0] + margin.left, e.pos[1] + margin.top];
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dispatch.tooltipShow(e);
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});
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dispatch.on('tooltipShow', function(e) {
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if (tooltips) showTooltip(e, that.parentNode);
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});
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// Update chart from a state object passed to event handler
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dispatch.on('changeState', function(e) {
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if (typeof e.disabled !== 'undefined') {
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data.forEach(function(series,i) {
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series.disabled = e.disabled[i];
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});
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state.disabled = e.disabled;
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}
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chart.update();
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});
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//============================================================
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//store old scales for use in transitions on update
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x0 = x.copy();
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y0 = y.copy();
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});
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return chart;
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}
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//============================================================
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// Event Handling/Dispatching (out of chart's scope)
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//------------------------------------------------------------
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scatter.dispatch.on('elementMouseout.tooltip', function(e) {
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dispatch.tooltipHide(e);
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d3.select('.nv-chart-' + scatter.id() + ' .nv-series-' + e.seriesIndex + ' .nv-distx-' + e.pointIndex)
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.attr('y1', 0);
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d3.select('.nv-chart-' + scatter.id() + ' .nv-series-' + e.seriesIndex + ' .nv-disty-' + e.pointIndex)
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.attr('x2', distY.size());
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});
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dispatch.on('tooltipHide', function() {
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if (tooltips) nv.tooltip.cleanup();
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});
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//============================================================
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//============================================================
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// Expose Public Variables
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//------------------------------------------------------------
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// expose chart's sub-components
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chart.dispatch = dispatch;
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chart.scatter = scatter;
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chart.legend = legend;
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chart.controls = controls;
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chart.xAxis = xAxis;
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chart.yAxis = yAxis;
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chart.distX = distX;
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chart.distY = distY;
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d3.rebind(chart, scatter, 'id', 'interactive', 'pointActive', 'x', 'y', 'shape', 'size', 'xScale', 'yScale', 'zScale', 'xDomain', 'yDomain', 'xRange', 'yRange', 'sizeDomain', 'sizeRange', 'forceX', 'forceY', 'forceSize', 'clipVoronoi', 'clipRadius', 'useVoronoi');
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chart.margin = function(_) {
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if (!arguments.length) return margin;
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margin.top = typeof _.top != 'undefined' ? _.top : margin.top;
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margin.right = typeof _.right != 'undefined' ? _.right : margin.right;
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margin.bottom = typeof _.bottom != 'undefined' ? _.bottom : margin.bottom;
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margin.left = typeof _.left != 'undefined' ? _.left : margin.left;
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return chart;
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};
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chart.width = function(_) {
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if (!arguments.length) return width;
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width = _;
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return chart;
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};
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chart.height = function(_) {
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if (!arguments.length) return height;
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height = _;
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return chart;
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};
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chart.color = function(_) {
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if (!arguments.length) return color;
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color = nv.utils.getColor(_);
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legend.color(color);
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distX.color(color);
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distY.color(color);
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return chart;
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};
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chart.showDistX = function(_) {
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if (!arguments.length) return showDistX;
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showDistX = _;
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return chart;
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};
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chart.showDistY = function(_) {
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if (!arguments.length) return showDistY;
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showDistY = _;
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return chart;
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};
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chart.showControls = function(_) {
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if (!arguments.length) return showControls;
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showControls = _;
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return chart;
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};
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|
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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.fisheye = function(_) {
|
|
if (!arguments.length) return fisheye;
|
|
fisheye = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.xPadding = function(_) {
|
|
if (!arguments.length) return xPadding;
|
|
xPadding = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.yPadding = function(_) {
|
|
if (!arguments.length) return yPadding;
|
|
yPadding = _;
|
|
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.tooltipXContent = function(_) {
|
|
if (!arguments.length) return tooltipX;
|
|
tooltipX = _;
|
|
return chart;
|
|
};
|
|
|
|
chart.tooltipYContent = function(_) {
|
|
if (!arguments.length) return tooltipY;
|
|
tooltipY = _;
|
|
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 scatter.transitionDuration();
|
|
scatter.transitionDuration(_);
|
|
xAxis.transitionDuration(_);
|
|
yAxis.transitionDuration(_);
|
|
distX.transitionDuration(_);
|
|
distY.transitionDuration(_);
|
|
return chart;
|
|
};
|
|
|
|
//============================================================
|
|
|
|
|
|
return chart;
|
|
}
|