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nv.models.cumulativeLineChart = function() {
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//============================================================
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// Public Variables with Default Settings
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//------------------------------------------------------------
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var lines = nv.models.line()
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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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;
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var margin = {top: 30, right: 30, 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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, tooltips = true
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, showControls = true
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, rescaleY = 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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, x //can be accessed via chart.xScale()
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, y //can be accessed via chart.yScale()
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, id = lines.id()
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, state = { index: 0, rescaleY: rescaleY }
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, defaultState = null
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, noData = 'No Data Available.'
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, average = function(d) { return d.average }
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, dispatch = d3.dispatch('tooltipShow', 'tooltipHide', 'stateChange', 'changeState')
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;
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xAxis
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.orient('bottom')
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.tickPadding(7)
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;
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yAxis
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.orient('left')
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;
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//============================================================
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//============================================================
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// Private Variables
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//------------------------------------------------------------
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var dx = d3.scale.linear()
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, index = {i: 0, x: 0}
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;
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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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/*
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//Moved to see if we can get better behavior to fix issue #315
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var indexDrag = d3.behavior.drag()
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.on('dragstart', dragStart)
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.on('drag', dragMove)
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.on('dragend', dragEnd);
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function dragStart(d,i) {
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d3.select(chart.container)
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.style('cursor', 'ew-resize');
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}
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function dragMove(d,i) {
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d.x += d3.event.dx;
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d.i = Math.round(dx.invert(d.x));
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d3.select(this).attr('transform', 'translate(' + dx(d.i) + ',0)');
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chart.update();
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}
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function dragEnd(d,i) {
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d3.select(chart.container)
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.style('cursor', 'auto');
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chart.update();
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}
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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).classed('nv-chart-' + id, true),
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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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var indexDrag = d3.behavior.drag()
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.on('dragstart', dragStart)
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.on('drag', dragMove)
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.on('dragend', dragEnd);
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function dragStart(d,i) {
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d3.select(chart.container)
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.style('cursor', 'ew-resize');
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}
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function dragMove(d,i) {
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index.x = d3.event.x;
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index.i = Math.round(dx.invert(index.x));
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|
updateZero();
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|
}
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|
function dragEnd(d,i) {
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|
d3.select(chart.container)
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|
.style('cursor', 'auto');
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|
// update state and send stateChange with new index
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|
state.index = index.i;
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|
dispatch.stateChange(state);
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}
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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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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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|
|
|
|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
// Setup Scales
|
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|
x = lines.xScale();
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|
|
y = lines.yScale();
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|
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|
|
if (!rescaleY) {
|
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|
|
var seriesDomains = data
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|
|
.filter(function(series) { return !series.disabled })
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|
|
.map(function(series,i) {
|
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|
|
var initialDomain = d3.extent(series.values, lines.y());
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|
//account for series being disabled when losing 95% or more
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|
if (initialDomain[0] < -.95) initialDomain[0] = -.95;
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|
return [
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(initialDomain[0] - initialDomain[1]) / (1 + initialDomain[1]),
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|
|
(initialDomain[1] - initialDomain[0]) / (1 + initialDomain[0])
|
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|
|
];
|
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|
|
});
|
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|
|
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|
|
var completeDomain = [
|
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|
|
d3.min(seriesDomains, function(d) { return d[0] }),
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|
|
d3.max(seriesDomains, function(d) { return d[1] })
|
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|
|
]
|
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|
|
lines.yDomain(completeDomain);
|
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|
|
} else {
|
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|
|
lines.yDomain(null);
|
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|
|
}
|
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|
|
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|
dx .domain([0, data[0].values.length - 1]) //Assumes all series have same length
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|
|
.range([0, availableWidth])
|
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|
|
.clamp(true);
|
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|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
|
|
|
|
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|
|
var data = indexify(index.i, data);
|
|
|
|
|
|
|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
// Setup containers and skeleton of chart
|
|
|
|
|
|
|
|
var wrap = container.selectAll('g.nv-wrap.nv-cumulativeLine').data([data]);
|
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|
|
var gEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-cumulativeLine').append('g');
|
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|
|
var g = wrap.select('g');
|
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|
|
|
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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-background');
|
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|
|
gEnter.append('g').attr('class', 'nv-linesWrap');
|
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|
|
gEnter.append('g').attr('class', 'nv-avgLinesWrap');
|
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|
|
gEnter.append('g').attr('class', 'nv-legendWrap');
|
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|
|
gEnter.append('g').attr('class', 'nv-controlsWrap');
|
|
|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
// Legend
|
|
|
|
|
|
|
|
if (showLegend) {
|
|
|
|
legend.width(availableWidth);
|
|
|
|
|
|
|
|
g.select('.nv-legendWrap')
|
|
|
|
.datum(data)
|
|
|
|
.call(legend);
|
|
|
|
|
|
|
|
if ( margin.top != legend.height()) {
|
|
|
|
margin.top = legend.height();
|
|
|
|
availableHeight = (height || parseInt(container.style('height')) || 400)
|
|
|
|
- margin.top - margin.bottom;
|
|
|
|
}
|
|
|
|
|
|
|
|
g.select('.nv-legendWrap')
|
|
|
|
.attr('transform', 'translate(0,' + (-margin.top) +')')
|
|
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
// Controls
|
|
|
|
|
|
|
|
if (showControls) {
|
|
|
|
var controlsData = [
|
|
|
|
{ key: 'Re-scale y-axis', disabled: !rescaleY }
|
|
|
|
];
|
|
|
|
|
|
|
|
controls.width(140).color(['#444', '#444', '#444']);
|
|
|
|
g.select('.nv-controlsWrap')
|
|
|
|
.datum(controlsData)
|
|
|
|
.attr('transform', 'translate(0,' + (-margin.top) +')')
|
|
|
|
.call(controls);
|
|
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
|
|
wrap.attr('transform', 'translate(' + margin.left + ',' + margin.top + ')');
|
|
|
|
|
|
|
|
|
|
|
|
// Show error if series goes below 100%
|
|
|
|
var tempDisabled = data.filter(function(d) { return d.tempDisabled });
|
|
|
|
|
|
|
|
wrap.select('.tempDisabled').remove(); //clean-up and prevent duplicates
|
|
|
|
if (tempDisabled.length) {
|
|
|
|
wrap.append('text').attr('class', 'tempDisabled')
|
|
|
|
.attr('x', availableWidth / 2)
|
|
|
|
.attr('y', '-.71em')
|
|
|
|
.style('text-anchor', 'end')
|
|
|
|
.text(tempDisabled.map(function(d) { return d.key }).join(', ') + ' values cannot be calculated for this time period.');
|
|
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
// Main Chart Component(s)
|
|
|
|
|
|
|
|
gEnter.select('.nv-background')
|
|
|
|
.append('rect');
|
|
|
|
|
|
|
|
g.select('.nv-background rect')
|
|
|
|
.attr('width', availableWidth)
|
|
|
|
.attr('height', availableHeight);
|
|
|
|
|
|
|
|
lines
|
|
|
|
//.x(function(d) { return d.x })
|
|
|
|
.y(function(d) { return d.display.y })
|
|
|
|
.width(availableWidth)
|
|
|
|
.height(availableHeight)
|
|
|
|
.color(data.map(function(d,i) {
|
|
|
|
return d.color || color(d, i);
|
|
|
|
}).filter(function(d,i) { return !data[i].disabled && !data[i].tempDisabled; }));
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
var linesWrap = g.select('.nv-linesWrap')
|
|
|
|
.datum(data.filter(function(d) { return !d.disabled && !d.tempDisabled }));
|
|
|
|
|
|
|
|
//d3.transition(linesWrap).call(lines);
|
|
|
|
linesWrap.call(lines);
|
|
|
|
|
|
|
|
/*Handle average lines [AN-612] ----------------------------*/
|
|
|
|
|
|
|
|
//Store a series index number in the data array.
|
|
|
|
data.forEach(function(d,i) {
|
|
|
|
d.seriesIndex = i;
|
|
|
|
});
|
|
|
|
|
|
|
|
var avgLineData = data.filter(function(d) {
|
|
|
|
return !d.disabled && !!average(d);
|
|
|
|
});
|
|
|
|
|
|
|
|
var avgLines = g.select(".nv-avgLinesWrap").selectAll("line")
|
|
|
|
.data(avgLineData, function(d) { return d.key; });
|
|
|
|
|
|
|
|
avgLines.enter()
|
|
|
|
.append('line')
|
|
|
|
.style('stroke-width',2)
|
|
|
|
.style('stroke-dasharray','10,10')
|
|
|
|
.style('stroke',function (d,i) {
|
|
|
|
return lines.color()(d,d.seriesIndex);
|
|
|
|
})
|
|
|
|
.attr('x1',0)
|
|
|
|
.attr('x2',availableWidth)
|
|
|
|
.attr('y1', function(d) { return y(average(d)); })
|
|
|
|
.attr('y2', function(d) { return y(average(d)); });
|
|
|
|
|
|
|
|
avgLines
|
|
|
|
.attr('x1',0)
|
|
|
|
.attr('x2',availableWidth)
|
|
|
|
.attr('y1', function(d) { return y(average(d)); })
|
|
|
|
.attr('y2', function(d) { return y(average(d)); });
|
|
|
|
|
|
|
|
avgLines.exit().remove();
|
|
|
|
|
|
|
|
//Create index line -----------------------------------------
|
|
|
|
|
|
|
|
var indexLine = linesWrap.selectAll('.nv-indexLine')
|
|
|
|
.data([index]);
|
|
|
|
indexLine.enter().append('rect').attr('class', 'nv-indexLine')
|
|
|
|
.attr('width', 3)
|
|
|
|
.attr('x', -2)
|
|
|
|
.attr('fill', 'red')
|
|
|
|
.attr('fill-opacity', .5)
|
|
|
|
.call(indexDrag)
|
|
|
|
|
|
|
|
indexLine
|
|
|
|
.attr('transform', function(d) { return 'translate(' + dx(d.i) + ',0)' })
|
|
|
|
.attr('height', availableHeight)
|
|
|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
// Setup Axes
|
|
|
|
|
|
|
|
xAxis
|
|
|
|
.scale(x)
|
|
|
|
//Suggest how many ticks based on the chart width and D3 should listen (70 is the optimal number for MM/DD/YY dates)
|
|
|
|
.ticks( Math.min(data[0].values.length,availableWidth/70) )
|
|
|
|
.tickSize(-availableHeight, 0);
|
|
|
|
|
|
|
|
g.select('.nv-x.nv-axis')
|
|
|
|
.attr('transform', 'translate(0,' + y.range()[0] + ')');
|
|
|
|
d3.transition(g.select('.nv-x.nv-axis'))
|
|
|
|
.call(xAxis);
|
|
|
|
|
|
|
|
|
|
|
|
yAxis
|
|
|
|
.scale(y)
|
|
|
|
.ticks( availableHeight / 36 )
|
|
|
|
.tickSize( -availableWidth, 0);
|
|
|
|
|
|
|
|
d3.transition(g.select('.nv-y.nv-axis'))
|
|
|
|
.call(yAxis);
|
|
|
|
|
|
|
|
//------------------------------------------------------------
|
|
|
|
|
|
|
|
|
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//============================================================
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// Event Handling/Dispatching (in chart's scope)
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//------------------------------------------------------------
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function updateZero() {
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indexLine
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.data([index]);
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container.call(chart);
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}
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g.select('.nv-background rect')
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.on('click', function() {
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index.x = d3.mouse(this)[0];
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index.i = Math.round(dx.invert(index.x));
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// update state and send stateChange with new index
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state.index = index.i;
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dispatch.stateChange(state);
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updateZero();
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});
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lines.dispatch.on('elementClick', function(e) {
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index.i = e.pointIndex;
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index.x = dx(index.i);
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// update state and send stateChange with new index
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state.index = index.i;
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dispatch.stateChange(state);
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updateZero();
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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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rescaleY = !d.disabled;
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state.rescaleY = rescaleY;
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dispatch.stateChange(state);
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//selection.transition().call(chart);
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chart.update();
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});
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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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state.disabled = data.map(function(d) { return !!d.disabled });
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dispatch.stateChange(state);
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//selection.transition().call(chart);
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chart.update();
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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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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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if (typeof e.index !== 'undefined') {
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index.i = e.index;
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index.x = dx(index.i);
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state.index = e.index;
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indexLine
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.data([index]);
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}
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if (typeof e.rescaleY !== 'undefined') {
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rescaleY = e.rescaleY;
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}
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chart.update();
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});
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//============================================================
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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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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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lines.dispatch.on('elementMouseout.tooltip', function(e) {
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dispatch.tooltipHide(e);
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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.lines = lines;
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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', 'isArea', 'x', 'y', 'size', 'xDomain', 'yDomain', 'forceX', 'forceY', 'interactive', 'clipEdge', 'clipVoronoi', 'id');
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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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return chart;
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};
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chart.rescaleY = function(_) {
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if (!arguments.length) return rescaleY;
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rescaleY = _
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return rescaleY;
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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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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.state = function(_) {
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if (!arguments.length) return state;
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state = _;
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return chart;
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};
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chart.defaultState = function(_) {
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if (!arguments.length) return defaultState;
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defaultState = _;
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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.average = function(_) {
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if(!arguments.length) return average;
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average = _;
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return chart;
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};
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//============================================================
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//============================================================
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// Functions
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//------------------------------------------------------------
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/* Normalize the data according to an index point. */
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function indexify(idx, data) {
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return data.map(function(line, i) {
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if (!line.values) {
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return line;
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}
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var v = lines.y()(line.values[idx], idx);
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//TODO: implement check below, and disable series if series loses 100% or more cause divide by 0 issue
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if (v < -.95) {
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//if a series loses more than 100%, calculations fail.. anything close can cause major distortion (but is mathematically correct till it hits 100)
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line.tempDisabled = true;
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return line;
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}
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line.tempDisabled = false;
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line.values = line.values.map(function(point, pointIndex) {
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point.display = {'y': (lines.y()(point, pointIndex) - v) / (1 + v) };
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return point;
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})
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return line;
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})
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}
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//============================================================
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return chart;
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}
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