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298 lines
8.3 KiB
JavaScript
298 lines
8.3 KiB
JavaScript
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nv.models.lineChart = function() {
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"use strict";
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var margin = {top: 30, right: 20, bottom: 50, left: 60},
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color = nv.utils.defaultColor(),
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width = null,
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height = null,
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showLegend = true,
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showControls = true,
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fisheye = 0,
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pauseFisheye = false,
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tooltips = true,
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tooltip = function(key, x, y, e, graph) {
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return '<h3>' + key + '</h3>' +
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'<p>' + y + ' at ' + x + '</p>'
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},
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noData = "No Data Available."
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;
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var x = d3.fisheye.scale(d3.scale.linear).distortion(0);
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var lines = nv.models.line().xScale(x),
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//x = lines.xScale(),
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y = lines.yScale(),
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xAxis = nv.models.axis().scale(x).orient('bottom').tickPadding(5),
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yAxis = nv.models.axis().scale(y).orient('left'),
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legend = nv.models.legend().height(30),
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controls = nv.models.legend().height(30).updateState(false),
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dispatch = d3.dispatch('tooltipShow', 'tooltipHide');
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var showTooltip = function(e, offsetElement) {
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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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x = xAxis.tickFormat()(lines.x()(e.point, e.pointIndex)),
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y = yAxis.tickFormat()(lines.y()(e.point, e.pointIndex)),
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content = tooltip(e.series.key, x, y, e, chart);
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nv.tooltip.show([left, top], content, null, 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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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; // I need a reference to the container in order to have outside code check if the chart is visible or not
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//------------------------------------------------------------
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// Display No Data 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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container.append('text')
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.attr('class', 'nvd3 nv-noData')
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.attr('x', availableWidth / 2)
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.attr('y', availableHeight / 2)
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.attr('dy', '-.7em')
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.style('text-anchor', 'middle')
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.text(noData);
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return chart;
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} else {
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container.select('.nv-noData').remove();
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}
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//------------------------------------------------------------
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var wrap = container.selectAll('g.nv-wrap.nv-lineChart').data([data]);
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var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-lineChart').append('g');
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gEnter.append('rect')
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.attr('class', 'nvd3 nv-background')
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.attr('width', availableWidth)
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.attr('height', availableHeight);
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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-linesWrap');
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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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gEnter.append('g').attr('class', 'nv-controlsWrap');
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var g = wrap.select('g');
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if (showLegend) {
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legend.width(availableWidth);
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g.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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g.select('.nv-legendWrap')
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.attr('transform', 'translate(0,' + (-margin.top) +')')
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}
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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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lines
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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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g.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
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var linesWrap = g.select('.nv-linesWrap')
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.datum(data.filter(function(d) { return !d.disabled }))
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d3.transition(linesWrap).call(lines);
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xAxis
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//.scale(x)
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.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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d3.transition(g.select('.nv-x.nv-axis'))
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.call(xAxis);
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yAxis
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//.scale(y)
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.ticks( availableHeight / 36 )
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.tickSize( -availableWidth, 0);
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d3.transition(g.select('.nv-y.nv-axis'))
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.call(yAxis);
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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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//g.select('.point-paths').on('mousemove', updateFisheye);
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function updateFisheye() {
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if (pauseFisheye) {
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//g.select('.background') .style('pointer-events', 'none');
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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-background') .style('pointer-events', 'all');
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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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linesWrap.call(lines);
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g.select('.nv-x.nv-axis').call(xAxis);
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x.distortion(fisheye).focus(mouse[0]);
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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 : 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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//scatter.interactive(d.disabled);
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//tooltips = d.disabled;
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if (d.disabled) {
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x.distortion(fisheye).focus(0);
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linesWrap.call(lines);
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g.select('.nv-x.nv-axis').call(xAxis);
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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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chart.update();
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});
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lines.dispatch.on('elementMouseover.tooltip', function(e) {
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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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if (tooltips) dispatch.on('tooltipShow', function(e) { showTooltip(e, that.parentNode) } ); // TODO: maybe merge with above?
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lines.dispatch.on('elementMouseout.tooltip', function(e) {
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dispatch.tooltipHide(e);
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});
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if (tooltips) dispatch.on('tooltipHide', nv.tooltip.cleanup);
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});
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return chart;
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}
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chart.dispatch = dispatch;
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chart.legend = legend;
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chart.xAxis = xAxis;
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chart.yAxis = yAxis;
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d3.rebind(chart, lines, 'defined', 'x', 'y', 'size', 'xDomain', 'yDomain', 'xRange', 'yRange', 'forceX', 'forceY', 'interactive', 'clipEdge', 'clipVoronoi', 'id', 'interpolate');
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chart.options = nv.utils.optionsFunc.bind(chart);
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chart.margin = function(_) {
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if (!arguments.length) return margin;
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margin = _;
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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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return chart;
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};
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chart.showLegend = function(_) {
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if (!arguments.length) return showLegend;
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showLegend = _;
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return chart;
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};
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chart.tooltips = function(_) {
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if (!arguments.length) return tooltips;
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tooltips = _;
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return chart;
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};
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chart.tooltipContent = function(_) {
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if (!arguments.length) return tooltip;
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tooltip = _;
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return chart;
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};
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chart.noData = function(_) {
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if (!arguments.length) return noData;
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noData = _;
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return chart;
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};
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return chart;
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}
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