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502 lines
14 KiB
JavaScript
502 lines
14 KiB
JavaScript
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nv.models.lineWithFocusChart = function() {
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var margin = {top: 30, right: 30, bottom: 30, left: 60},
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margin2 = {top: 0, right: 30, bottom: 20, 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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height2 = 100,
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showLegend = true,
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brushExtent = null,
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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 lines = nv.models.line().clipEdge(true),
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lines2 = nv.models.line().interactive(false),
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x = lines.xScale(),
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y = lines.yScale(),
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x2 = lines2.xScale(),
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y2 = lines2.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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x2Axis = nv.models.axis().scale(x2).orient('bottom').tickPadding(5),
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y2Axis = nv.models.axis().scale(y2).orient('left'),
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legend = nv.models.legend().height(30),
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dispatch = d3.dispatch('tooltipShow', 'tooltipHide'),
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brush = d3.svg.brush().x(x2);
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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);
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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 - height2,
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availableHeight2 = height2 - margin2.top - margin2.bottom;
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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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brush.on('brush', onBrush);
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var wrap = container.selectAll('g.nv-wrap.nv-lineWithFocusChart').data([data]);
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var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-lineWithFocusChart').append('g');
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gEnter.append('g').attr('class', 'nv-legendWrap');
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var focusEnter = gEnter.append('g').attr('class', 'nv-focus');
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focusEnter.append('g').attr('class', 'nv-x nv-axis');
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focusEnter.append('g').attr('class', 'nv-y nv-axis');
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focusEnter.append('g').attr('class', 'nv-linesWrap');
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var contextEnter = gEnter.append('g').attr('class', 'nv-context');
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contextEnter.append('g').attr('class', 'nv-x nv-axis');
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contextEnter.append('g').attr('class', 'nv-y nv-axis');
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contextEnter.append('g').attr('class', 'nv-linesWrap');
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contextEnter.append('g').attr('class', 'nv-brushBackground');
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contextEnter.append('g').attr('class', 'nv-x nv-brush');
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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 - height2;
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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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lines
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.width(availableWidth)
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.height(availableHeight)
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.color(
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data
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.map(function(d,i) {
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return d.color || color(d, i);
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})
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.filter(function(d,i) {
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return !data[i].disabled;
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})
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);
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lines2
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.defined(lines.defined())
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.width(availableWidth)
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.height(availableHeight2)
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.color(
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data
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.map(function(d,i) {
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return d.color || color(d, i);
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})
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.filter(function(d,i) {
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return !data[i].disabled;
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})
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);
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g.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
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/*
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var focusLinesWrap = g.select('.nv-focus .nv-linesWrap')
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.datum(data.filter(function(d) { return !d.disabled }))
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d3.transition(focusLinesWrap).call(lines);
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*/
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xAxis
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.ticks( availableWidth / 100 )
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.tickSize(-availableHeight, 0);
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yAxis
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.ticks( availableHeight / 36 )
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.tickSize( -availableWidth, 0);
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g.select('.nv-focus .nv-x.nv-axis')
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.attr('transform', 'translate(0,' + y.range()[0] + ')');
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/*
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d3.transition(g.select('.nv-focus .nv-x.nv-axis'))
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.call(xAxis);
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d3.transition(g.select('.nv-focus .nv-y.nv-axis'))
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.call(yAxis);
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*/
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g.select('.nv-context')
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.attr('transform', 'translate(0,' + ( availableHeight + margin.bottom + margin2.top) + ')')
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var contextLinesWrap = g.select('.nv-context .nv-linesWrap')
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.datum(data.filter(function(d) { return !d.disabled }))
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d3.transition(contextLinesWrap).call(lines2);
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if (brushExtent) brush.extent(brushExtent);
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var brushBG = g.select('.nv-brushBackground').selectAll('g')
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.data([brushExtent || brush.extent()])
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var brushBGenter = brushBG.enter()
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.append('g');
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brushBGenter.append('rect')
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.attr('class', 'left')
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.attr('x', 0)
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.attr('y', 0)
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.attr('height', availableHeight2);
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brushBGenter.append('rect')
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.attr('class', 'right')
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.attr('x', 0)
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.attr('y', 0)
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.attr('height', availableHeight2);
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function updateBrushBG() {
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//nv.log('test', brush.empty(), brush.extent());
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if (!brush.empty()) brush.extent(brushExtent);
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brushBG
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.data([brush.empty() ? x2.domain() : brushExtent])
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//.data([brush.empty() ? xi.domain() : brush.extent()])
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.each(function(d,i) {
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var leftWidth = x2(d[0]) - x.range()[0],
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rightWidth = x.range()[1] - x2(d[1]);
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d3.select(this).select('.left')
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.attr('width', leftWidth < 0 ? 0 : leftWidth);
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d3.select(this).select('.right')
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.attr('x', x2(d[1]))
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.attr('width', rightWidth < 0 ? 0 : rightWidth);
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});
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}
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gBrush = g.select('.nv-x.nv-brush')
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.call(brush);
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gBrush.selectAll('rect')
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//.attr('y', -5)
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.attr('height', availableHeight2);
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gBrush.selectAll('.resize').append('path').attr('d', resizePath);
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//if (brushExtent) onBrush();
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onBrush();
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x2Axis
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//.tickFormat(xAxis.tickFormat()) //exposing x2Axis so user can set differently
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.ticks( availableWidth / 100 )
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.tickSize(-availableHeight2, 0);
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g.select('.nv-context .nv-x.nv-axis')
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.attr('transform', 'translate(0,' + y2.range()[0] + ')');
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d3.transition(g.select('.nv-context .nv-x.nv-axis'))
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.call(x2Axis);
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y2Axis
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//.tickFormat(yAxis.tickFormat()) //exposing y2Axis so user can set differently
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.ticks( availableHeight2 / 36 )
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.tickSize( -availableWidth, 0);
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d3.transition(g.select('.nv-context .nv-y.nv-axis'))
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.call(y2Axis);
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g.select('.nv-focus .nv-x.nv-axis')
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.attr('transform', 'translate(0,' + y.range()[0] + ')');
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g.select('.nv-context .nv-x.nv-axis')
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.attr('transform', 'translate(0,' + y2.range()[0] + ')');
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legend.dispatch.on('legendClick', function(d,i) {
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d.disabled = !d.disabled;
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if (!data.filter(function(d) { return !d.disabled }).length) {
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data.map(function(d) {
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d.disabled = false;
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wrap.selectAll('.nv-series').classed('disabled', false);
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return d;
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});
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}
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selection.transition().call(chart);
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});
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/*
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//
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legend.dispatch.on('legendMouseover', function(d, i) {
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d.hover = true;
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selection.transition().call(chart)
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});
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legend.dispatch.on('legendMouseout', function(d, i) {
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d.hover = false;
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selection.transition().call(chart)
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});
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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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// Taken from crossfilter (http://square.github.com/crossfilter/)
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function resizePath(d) {
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var e = +(d == 'e'),
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x = e ? 1 : -1,
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y = availableHeight2 / 3;
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return 'M' + (.5 * x) + ',' + y
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+ 'A6,6 0 0 ' + e + ' ' + (6.5 * x) + ',' + (y + 6)
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+ 'V' + (2 * y - 6)
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+ 'A6,6 0 0 ' + e + ' ' + (.5 * x) + ',' + (2 * y)
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+ 'Z'
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+ 'M' + (2.5 * x) + ',' + (y + 8)
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+ 'V' + (2 * y - 8)
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+ 'M' + (4.5 * x) + ',' + (y + 8)
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+ 'V' + (2 * y - 8);
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}
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function onBrush() {
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//nv.log(brush.empty(), brush.extent(), x2(brush.extent()[0]), x2(brush.extent()[1]));
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/*
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focusLinesWrap.call(lines)
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//var focusLinesWrap = g.select('.focus .linesWrap')
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g.select('.nv-focus .nv-x.nv-axis').call(xAxis);
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g.select('.nv-focus .nv-y.nv-axis').call(yAxis);
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}
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*/
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brushExtent = brush.empty() ? null : brush.extent();
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extent = brush.empty() ? x2.domain() : brush.extent();
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updateBrushBG();
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var focusLinesWrap = g.select('.nv-focus .nv-linesWrap')
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.datum(
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data
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.filter(function(d) { return !d.disabled })
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.map(function(d,i) {
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return {
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key: d.key,
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values: d.values.filter(function(d,i) {
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return lines.x()(d,i) >= extent[0] && lines.x()(d,i) <= extent[1];
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})
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}
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})
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)
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d3.transition(focusLinesWrap).call(lines);
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/*
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var contextLinesWrap = g.select('.context .linesWrap')
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.datum(data.filter(function(d) { return !d.disabled }))
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d3.transition(contextLinesWrap).call(lines2);
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*/
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d3.transition(g.select('.nv-focus .nv-x.nv-axis'))
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.call(xAxis);
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d3.transition(g.select('.nv-focus .nv-y.nv-axis'))
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.call(yAxis);
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}
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});
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//TODO: decide if this is a good idea, and if it should be in all models
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chart.update = function() { chart(selection) };
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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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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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chart.x2Axis = x2Axis;
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chart.y2Axis = y2Axis;
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d3.rebind(chart, lines, 'defined', 'isArea', 'size', 'xDomain', 'yDomain', 'forceX', 'forceY', 'interactive', 'clipEdge', 'clipVoronoi', 'id');
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chart.x = function(_) {
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if (!arguments.length) return lines.x;
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lines.x(_);
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lines2.x(_);
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return chart;
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};
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chart.y = function(_) {
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if (!arguments.length) return lines.y;
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lines.y(_);
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lines2.y(_);
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return chart;
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};
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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.margin2 = function(_) {
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if (!arguments.length) return margin2;
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margin2 = _;
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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.interpolate = function(_) {
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if (!arguments.length) return lines.interpolate();
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lines.interpolate(_);
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lines2.interpolate(_);
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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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// Chart has multiple similar Axes, to prevent code duplication, probably need to link all axis functions manually like below
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chart.xTickFormat = function(_) {
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if (!arguments.length) return xAxis.tickFormat();
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xAxis.tickFormat(_);
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x2Axis.tickFormat(_);
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return chart;
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};
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chart.yTickFormat = function(_) {
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if (!arguments.length) return yAxis.tickFormat();
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yAxis.tickFormat(_);
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y2Axis.tickFormat(_);
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return chart;
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};
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return chart;
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}
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