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3097 lines (2649 loc) · 109 KB
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/**
* Copyright 2012-2016, Plotly, Inc.
* All rights reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
'use strict';
var d3 = require('d3');
var m4FromQuat = require('gl-mat4/fromQuat');
var isNumeric = require('fast-isnumeric');
var Plotly = require('../plotly');
var Lib = require('../lib');
var Events = require('../lib/events');
var Queue = require('../lib/queue');
var Plots = require('../plots/plots');
var Fx = require('../plots/cartesian/graph_interact');
var Color = require('../components/color');
var Drawing = require('../components/drawing');
var ErrorBars = require('../components/errorbars');
var Images = require('../components/images');
var Legend = require('../components/legend');
var RangeSlider = require('../components/rangeslider');
var RangeSelector = require('../components/rangeselector');
var Shapes = require('../components/shapes');
var Titles = require('../components/titles');
var manageModeBar = require('../components/modebar/manage');
var xmlnsNamespaces = require('../constants/xmlns_namespaces');
/**
* Main plot-creation function
*
* Note: will call makePlotFramework if necessary to create the framework
*
* @param {string id or DOM element} gd
* the id or DOM element of the graph container div
* @param {array of objects} data
* array of traces, containing the data and display information for each trace
* @param {object} layout
* object describing the overall display of the plot,
* all the stuff that doesn't pertain to any individual trace
* @param {object} config
* configuration options (see ./plot_config.js for more info)
*
*/
Plotly.plot = function(gd, data, layout, config) {
gd = getGraphDiv(gd);
// Events.init is idempotent and bails early if gd has already been init'd
Events.init(gd);
var okToPlot = Events.triggerHandler(gd, 'plotly_beforeplot', [data, layout, config]);
if(okToPlot === false) return Promise.reject();
// if there's no data or layout, and this isn't yet a plotly plot
// container, log a warning to help plotly.js users debug
if(!data && !layout && !Lib.isPlotDiv(gd)) {
Lib.warn('Calling Plotly.plot as if redrawing ' +
'but this container doesn\'t yet have a plot.', gd);
}
// transfer configuration options to gd until we move over to
// a more OO like model
setPlotContext(gd, config);
if(!layout) layout = {};
// hook class for plots main container (in case of plotly.js
// this won't be #embedded-graph or .js-tab-contents)
d3.select(gd).classed('js-plotly-plot', true);
// off-screen getBoundingClientRect testing space,
// in #js-plotly-tester (and stored as gd._tester)
// so we can share cached text across tabs
Drawing.makeTester(gd);
// collect promises for any async actions during plotting
// any part of the plotting code can push to gd._promises, then
// before we move to the next step, we check that they're all
// complete, and empty out the promise list again.
gd._promises = [];
var graphWasEmpty = ((gd.data || []).length === 0 && Array.isArray(data));
// if there is already data on the graph, append the new data
// if you only want to redraw, pass a non-array for data
if(Array.isArray(data)) {
cleanData(data, gd.data);
if(graphWasEmpty) gd.data = data;
else gd.data.push.apply(gd.data, data);
// for routines outside graph_obj that want a clean tab
// (rather than appending to an existing one) gd.empty
// is used to determine whether to make a new tab
gd.empty = false;
}
if(!gd.layout || graphWasEmpty) gd.layout = cleanLayout(layout);
// if the user is trying to drag the axes, allow new data and layout
// to come in but don't allow a replot.
if(gd._dragging) {
// signal to drag handler that after everything else is done
// we need to replot, because something has changed
gd._replotPending = true;
return Promise.reject();
} else {
// we're going ahead with a replot now
gd._replotPending = false;
}
Plots.supplyDefaults(gd);
// Polar plots
if(data && data[0] && data[0].r) return plotPolar(gd, data, layout);
// so we don't try to re-call Plotly.plot from inside
// legend and colorbar, if margins changed
gd._replotting = true;
var hasData = gd._fullData.length > 0;
var subplots = Plotly.Axes.getSubplots(gd).join(''),
oldSubplots = Object.keys(gd._fullLayout._plots || {}).join(''),
hasSameSubplots = (oldSubplots === subplots);
// Make or remake the framework (ie container and axes) if we need to
// note: if they container already exists and has data,
// the new layout gets ignored (as it should)
// but if there's no data there yet, it's just a placeholder...
// then it should destroy and remake the plot
if(hasData) {
if(gd.framework !== makePlotFramework || graphWasEmpty || !hasSameSubplots) {
gd.framework = makePlotFramework;
makePlotFramework(gd);
}
}
else if(!hasSameSubplots) {
gd.framework = makePlotFramework;
makePlotFramework(gd);
}
else if(graphWasEmpty) makePlotFramework(gd);
// save initial axis range once per graph
if(graphWasEmpty) Plotly.Axes.saveRangeInitial(gd);
var fullLayout = gd._fullLayout;
// prepare the data and find the autorange
// generate calcdata, if we need to
// to force redoing calcdata, just delete it before calling Plotly.plot
var recalc = !gd.calcdata || gd.calcdata.length !== (gd.data || []).length;
if(recalc) doCalcdata(gd);
// in case it has changed, attach fullData traces to calcdata
for(var i = 0; i < gd.calcdata.length; i++) {
gd.calcdata[i][0].trace = gd._fullData[i];
}
/*
* start async-friendly code - now we're actually drawing things
*/
var oldmargins = JSON.stringify(fullLayout._size);
// draw anything that can affect margins.
// currently this is legend and colorbars
function marginPushers() {
var calcdata = gd.calcdata;
var i, cd, trace;
Legend.draw(gd);
RangeSelector.draw(gd);
for(i = 0; i < calcdata.length; i++) {
cd = calcdata[i];
trace = cd[0].trace;
if(trace.visible !== true || !trace._module.colorbar) {
Plots.autoMargin(gd, 'cb' + trace.uid);
}
else trace._module.colorbar(gd, cd);
}
Plots.doAutoMargin(gd);
return Plots.previousPromises(gd);
}
function marginPushersAgain() {
// in case the margins changed, draw margin pushers again
var seq = JSON.stringify(fullLayout._size) === oldmargins ?
[] : [marginPushers, layoutStyles];
return Lib.syncOrAsync(seq.concat(Fx.init), gd);
}
function positionAndAutorange() {
if(!recalc) return;
var subplots = Plots.getSubplotIds(fullLayout, 'cartesian'),
modules = fullLayout._modules;
// position and range calculations for traces that
// depend on each other ie bars (stacked or grouped)
// and boxes (grouped) push each other out of the way
var subplotInfo, _module;
for(var i = 0; i < subplots.length; i++) {
subplotInfo = fullLayout._plots[subplots[i]];
for(var j = 0; j < modules.length; j++) {
_module = modules[j];
if(_module.setPositions) _module.setPositions(gd, subplotInfo);
}
}
// calc and autorange for errorbars
ErrorBars.calc(gd);
// TODO: autosize extra for text markers
return Lib.syncOrAsync([
Shapes.calcAutorange,
Plotly.Annotations.calcAutorange,
doAutoRange
], gd);
}
function doAutoRange() {
var axList = Plotly.Axes.list(gd, '', true);
for(var i = 0; i < axList.length; i++) {
Plotly.Axes.doAutoRange(axList[i]);
}
}
function drawAxes() {
// draw ticks, titles, and calculate axis scaling (._b, ._m)
return Plotly.Axes.doTicks(gd, 'redraw');
}
// Now plot the data
function drawData() {
var calcdata = gd.calcdata,
i;
// in case of traces that were heatmaps or contour maps
// previously, remove them and their colorbars explicitly
for(i = 0; i < calcdata.length; i++) {
var trace = calcdata[i][0].trace,
isVisible = (trace.visible === true),
uid = trace.uid;
if(!isVisible || !Plots.traceIs(trace, '2dMap')) {
fullLayout._paper.selectAll(
'.hm' + uid +
',.contour' + uid +
',#clip' + uid
).remove();
}
if(!isVisible || !trace._module.colorbar) {
fullLayout._infolayer.selectAll('.cb' + uid).remove();
}
}
// loop over the base plot modules present on graph
var basePlotModules = fullLayout._basePlotModules;
for(i = 0; i < basePlotModules.length; i++) {
basePlotModules[i].plot(gd);
}
// styling separate from drawing
Plots.style(gd);
// show annotations and shapes
Shapes.drawAll(gd);
Plotly.Annotations.drawAll(gd);
// source links
Plots.addLinks(gd);
// Mark the first render as complete
gd._replotting = false;
return Plots.previousPromises(gd);
}
// An initial paint must be completed before these components can be
// correctly sized and the whole plot re-margined. gd._replotting must
// be set to false before these will work properly.
function finalDraw() {
Shapes.drawAll(gd);
Images.draw(gd);
Plotly.Annotations.drawAll(gd);
Legend.draw(gd);
RangeSlider.draw(gd);
RangeSelector.draw(gd);
}
function cleanUp() {
// now we're REALLY TRULY done plotting...
// so mark it as done and let other procedures call a replot
gd.emit('plotly_afterplot');
}
Lib.syncOrAsync([
Plots.previousPromises,
marginPushers,
marginPushersAgain,
positionAndAutorange,
layoutStyles,
drawAxes,
drawData,
finalDraw
], gd, cleanUp);
// even if everything we did was synchronous, return a promise
// so that the caller doesn't care which route we took
return Promise.all(gd._promises).then(function() {
return gd;
});
};
// Get the container div: we store all variables for this plot as
// properties of this div
// some callers send this in by DOM element, others by id (string)
function getGraphDiv(gd) {
var gdElement;
if(typeof gd === 'string') {
gdElement = document.getElementById(gd);
if(gdElement === null) {
throw new Error('No DOM element with id \'' + gd + '\' exists on the page.');
}
return gdElement;
}
else if(gd === null || gd === undefined) {
throw new Error('DOM element provided is null or undefined');
}
return gd; // otherwise assume that gd is a DOM element
}
function opaqueSetBackground(gd, bgColor) {
gd._fullLayout._paperdiv.style('background', 'white');
Plotly.defaultConfig.setBackground(gd, bgColor);
}
function setPlotContext(gd, config) {
if(!gd._context) gd._context = Lib.extendFlat({}, Plotly.defaultConfig);
var context = gd._context;
if(config) {
Object.keys(config).forEach(function(key) {
if(key in context) {
if(key === 'setBackground' && config[key] === 'opaque') {
context[key] = opaqueSetBackground;
}
else context[key] = config[key];
}
});
// map plot3dPixelRatio to plotGlPixelRatio for backward compatibility
if(config.plot3dPixelRatio && !context.plotGlPixelRatio) {
context.plotGlPixelRatio = context.plot3dPixelRatio;
}
}
//staticPlot forces a bunch of others:
if(context.staticPlot) {
context.editable = false;
context.autosizable = false;
context.scrollZoom = false;
context.doubleClick = false;
context.showTips = false;
context.showLink = false;
context.displayModeBar = false;
}
}
function plotPolar(gd, data, layout) {
// build or reuse the container skeleton
var plotContainer = d3.select(gd).selectAll('.plot-container')
.data([0]);
plotContainer.enter()
.insert('div', ':first-child')
.classed('plot-container plotly', true);
var paperDiv = plotContainer.selectAll('.svg-container')
.data([0]);
paperDiv.enter().append('div')
.classed('svg-container', true)
.style('position', 'relative');
// empty it everytime for now
paperDiv.html('');
// fulfill gd requirements
if(data) gd.data = data;
if(layout) gd.layout = layout;
Plotly.micropolar.manager.fillLayout(gd);
if(gd._fullLayout.autosize === 'initial' && gd._context.autosizable) {
plotAutoSize(gd, {});
gd._fullLayout.autosize = layout.autosize = true;
}
// resize canvas
paperDiv.style({
width: gd._fullLayout.width + 'px',
height: gd._fullLayout.height + 'px'
});
// instantiate framework
gd.framework = Plotly.micropolar.manager.framework(gd);
// plot
gd.framework({data: gd.data, layout: gd.layout}, paperDiv.node());
// set undo point
gd.framework.setUndoPoint();
// get the resulting svg for extending it
var polarPlotSVG = gd.framework.svg();
// editable title
var opacity = 1;
var txt = gd._fullLayout.title;
if(txt === '' || !txt) opacity = 0;
var placeholderText = 'Click to enter title';
var titleLayout = function() {
this.call(Plotly.util.convertToTspans);
//TODO: html/mathjax
//TODO: center title
};
var title = polarPlotSVG.select('.title-group text')
.call(titleLayout);
if(gd._context.editable) {
title.attr({'data-unformatted': txt});
if(!txt || txt === placeholderText) {
opacity = 0.2;
title.attr({'data-unformatted': placeholderText})
.text(placeholderText)
.style({opacity: opacity})
.on('mouseover.opacity', function() {
d3.select(this).transition().duration(100)
.style('opacity', 1);
})
.on('mouseout.opacity', function() {
d3.select(this).transition().duration(1000)
.style('opacity', 0);
});
}
var setContenteditable = function() {
this.call(Plotly.util.makeEditable)
.on('edit', function(text) {
gd.framework({layout: {title: text}});
this.attr({'data-unformatted': text})
.text(text)
.call(titleLayout);
this.call(setContenteditable);
})
.on('cancel', function() {
var txt = this.attr('data-unformatted');
this.text(txt).call(titleLayout);
});
};
title.call(setContenteditable);
}
gd._context.setBackground(gd, gd._fullLayout.paper_bgcolor);
Plots.addLinks(gd);
return Promise.resolve();
}
function cleanLayout(layout) {
// make a few changes to the layout right away
// before it gets used for anything
// backward compatibility and cleanup of nonstandard options
var i, j;
if(!layout) layout = {};
// cannot have (x|y)axis1, numbering goes axis, axis2, axis3...
if(layout.xaxis1) {
if(!layout.xaxis) layout.xaxis = layout.xaxis1;
delete layout.xaxis1;
}
if(layout.yaxis1) {
if(!layout.yaxis) layout.yaxis = layout.yaxis1;
delete layout.yaxis1;
}
var axList = Plotly.Axes.list({_fullLayout: layout});
for(i = 0; i < axList.length; i++) {
var ax = axList[i];
if(ax.anchor && ax.anchor !== 'free') {
ax.anchor = Plotly.Axes.cleanId(ax.anchor);
}
if(ax.overlaying) ax.overlaying = Plotly.Axes.cleanId(ax.overlaying);
// old method of axis type - isdate and islog (before category existed)
if(!ax.type) {
if(ax.isdate) ax.type = 'date';
else if(ax.islog) ax.type = 'log';
else if(ax.isdate === false && ax.islog === false) ax.type = 'linear';
}
if(ax.autorange === 'withzero' || ax.autorange === 'tozero') {
ax.autorange = true;
ax.rangemode = 'tozero';
}
delete ax.islog;
delete ax.isdate;
delete ax.categories; // replaced by _categories
// prune empty domain arrays made before the new nestedProperty
if(emptyContainer(ax, 'domain')) delete ax.domain;
// autotick -> tickmode
if(ax.autotick !== undefined) {
if(ax.tickmode === undefined) {
ax.tickmode = ax.autotick ? 'auto' : 'linear';
}
delete ax.autotick;
}
}
if(layout.annotations !== undefined && !Array.isArray(layout.annotations)) {
Lib.warn('Annotations must be an array.');
delete layout.annotations;
}
var annotationsLen = (layout.annotations || []).length;
for(i = 0; i < annotationsLen; i++) {
var ann = layout.annotations[i];
if(ann.ref) {
if(ann.ref === 'paper') {
ann.xref = 'paper';
ann.yref = 'paper';
}
else if(ann.ref === 'data') {
ann.xref = 'x';
ann.yref = 'y';
}
delete ann.ref;
}
cleanAxRef(ann, 'xref');
cleanAxRef(ann, 'yref');
}
if(layout.shapes !== undefined && !Array.isArray(layout.shapes)) {
Lib.warn('Shapes must be an array.');
delete layout.shapes;
}
var shapesLen = (layout.shapes || []).length;
for(i = 0; i < shapesLen; i++) {
var shape = layout.shapes[i];
cleanAxRef(shape, 'xref');
cleanAxRef(shape, 'yref');
}
var legend = layout.legend;
if(legend) {
// check for old-style legend positioning (x or y is +/- 100)
if(legend.x > 3) {
legend.x = 1.02;
legend.xanchor = 'left';
}
else if(legend.x < -2) {
legend.x = -0.02;
legend.xanchor = 'right';
}
if(legend.y > 3) {
legend.y = 1.02;
legend.yanchor = 'bottom';
}
else if(legend.y < -2) {
legend.y = -0.02;
legend.yanchor = 'top';
}
}
/*
* Moved from rotate -> orbit for dragmode
*/
if(layout.dragmode === 'rotate') layout.dragmode = 'orbit';
// cannot have scene1, numbering goes scene, scene2, scene3...
if(layout.scene1) {
if(!layout.scene) layout.scene = layout.scene1;
delete layout.scene1;
}
/*
* Clean up Scene layouts
*/
var sceneIds = Plots.getSubplotIds(layout, 'gl3d');
for(i = 0; i < sceneIds.length; i++) {
var scene = layout[sceneIds[i]];
// clean old Camera coords
var cameraposition = scene.cameraposition;
if(Array.isArray(cameraposition) && cameraposition[0].length === 4) {
var rotation = cameraposition[0],
center = cameraposition[1],
radius = cameraposition[2],
mat = m4FromQuat([], rotation),
eye = [];
for(j = 0; j < 3; ++j) {
eye[j] = center[i] + radius * mat[2 + 4 * j];
}
scene.camera = {
eye: {x: eye[0], y: eye[1], z: eye[2]},
center: {x: center[0], y: center[1], z: center[2]},
up: {x: mat[1], y: mat[5], z: mat[9]}
};
delete scene.cameraposition;
}
}
// sanitize rgb(fractions) and rgba(fractions) that old tinycolor
// supported, but new tinycolor does not because they're not valid css
Color.clean(layout);
return layout;
}
function cleanAxRef(container, attr) {
var valIn = container[attr],
axLetter = attr.charAt(0);
if(valIn && valIn !== 'paper') {
container[attr] = Plotly.Axes.cleanId(valIn, axLetter);
}
}
// Make a few changes to the data right away
// before it gets used for anything
function cleanData(data, existingData) {
// Enforce unique IDs
var suids = [], // seen uids --- so we can weed out incoming repeats
uids = data.concat(Array.isArray(existingData) ? existingData : [])
.filter(function(trace) { return 'uid' in trace; })
.map(function(trace) { return trace.uid; });
for(var tracei = 0; tracei < data.length; tracei++) {
var trace = data[tracei];
var i;
// assign uids to each trace and detect collisions.
if(!('uid' in trace) || suids.indexOf(trace.uid) !== -1) {
var newUid;
for(i = 0; i < 100; i++) {
newUid = Lib.randstr(uids);
if(suids.indexOf(newUid) === -1) break;
}
trace.uid = Lib.randstr(uids);
uids.push(trace.uid);
}
// keep track of already seen uids, so that if there are
// doubles we force the trace with a repeat uid to
// acquire a new one
suids.push(trace.uid);
// BACKWARD COMPATIBILITY FIXES
// use xbins to bin data in x, and ybins to bin data in y
if(trace.type === 'histogramy' && 'xbins' in trace && !('ybins' in trace)) {
trace.ybins = trace.xbins;
delete trace.xbins;
}
// error_y.opacity is obsolete - merge into color
if(trace.error_y && 'opacity' in trace.error_y) {
var dc = Color.defaults,
yeColor = trace.error_y.color ||
(Plots.traceIs(trace, 'bar') ? Color.defaultLine : dc[tracei % dc.length]);
trace.error_y.color = Color.addOpacity(
Color.rgb(yeColor),
Color.opacity(yeColor) * trace.error_y.opacity);
delete trace.error_y.opacity;
}
// convert bardir to orientation, and put the data into
// the axes it's eventually going to be used with
if('bardir' in trace) {
if(trace.bardir === 'h' && (Plots.traceIs(trace, 'bar') ||
trace.type.substr(0, 9) === 'histogram')) {
trace.orientation = 'h';
swapXYData(trace);
}
delete trace.bardir;
}
// now we have only one 1D histogram type, and whether
// it uses x or y data depends on trace.orientation
if(trace.type === 'histogramy') swapXYData(trace);
if(trace.type === 'histogramx' || trace.type === 'histogramy') {
trace.type = 'histogram';
}
// scl->scale, reversescl->reversescale
if('scl' in trace) {
trace.colorscale = trace.scl;
delete trace.scl;
}
if('reversescl' in trace) {
trace.reversescale = trace.reversescl;
delete trace.reversescl;
}
// axis ids x1 -> x, y1-> y
if(trace.xaxis) trace.xaxis = Plotly.Axes.cleanId(trace.xaxis, 'x');
if(trace.yaxis) trace.yaxis = Plotly.Axes.cleanId(trace.yaxis, 'y');
// scene ids scene1 -> scene
if(Plots.traceIs(trace, 'gl3d') && trace.scene) {
trace.scene = Plots.subplotsRegistry.gl3d.cleanId(trace.scene);
}
if(!Plots.traceIs(trace, 'pie')) {
if(Array.isArray(trace.textposition)) {
trace.textposition = trace.textposition.map(cleanTextPosition);
}
else if(trace.textposition) {
trace.textposition = cleanTextPosition(trace.textposition);
}
}
// fix typo in colorscale definition
if(Plots.traceIs(trace, '2dMap')) {
if(trace.colorscale === 'YIGnBu') trace.colorscale = 'YlGnBu';
if(trace.colorscale === 'YIOrRd') trace.colorscale = 'YlOrRd';
}
if(Plots.traceIs(trace, 'markerColorscale') && trace.marker) {
var cont = trace.marker;
if(cont.colorscale === 'YIGnBu') cont.colorscale = 'YlGnBu';
if(cont.colorscale === 'YIOrRd') cont.colorscale = 'YlOrRd';
}
// fix typo in surface 'highlight*' definitions
if(trace.type === 'surface' && Lib.isPlainObject(trace.contours)) {
var dims = ['x', 'y', 'z'];
for(i = 0; i < dims.length; i++) {
var opts = trace.contours[dims[i]];
if(!Lib.isPlainObject(opts)) continue;
if(opts.highlightColor) {
opts.highlightcolor = opts.highlightColor;
delete opts.highlightColor;
}
if(opts.highlightWidth) {
opts.highlightwidth = opts.highlightWidth;
delete opts.highlightWidth;
}
}
}
// prune empty containers made before the new nestedProperty
if(emptyContainer(trace, 'line')) delete trace.line;
if('marker' in trace) {
if(emptyContainer(trace.marker, 'line')) delete trace.marker.line;
if(emptyContainer(trace, 'marker')) delete trace.marker;
}
// sanitize rgb(fractions) and rgba(fractions) that old tinycolor
// supported, but new tinycolor does not because they're not valid css
Color.clean(trace);
}
}
// textposition - support partial attributes (ie just 'top')
// and incorrect use of middle / center etc.
function cleanTextPosition(textposition) {
var posY = 'middle',
posX = 'center';
if(textposition.indexOf('top') !== -1) posY = 'top';
else if(textposition.indexOf('bottom') !== -1) posY = 'bottom';
if(textposition.indexOf('left') !== -1) posX = 'left';
else if(textposition.indexOf('right') !== -1) posX = 'right';
return posY + ' ' + posX;
}
function emptyContainer(outer, innerStr) {
return (innerStr in outer) &&
(typeof outer[innerStr] === 'object') &&
(Object.keys(outer[innerStr]).length === 0);
}
// convenience function to force a full redraw, mostly for use by plotly.js
Plotly.redraw = function(gd) {
gd = getGraphDiv(gd);
if(!Lib.isPlotDiv(gd)) {
Lib.warn('This element is not a Plotly plot.', gd);
return;
}
gd.calcdata = undefined;
return Plotly.plot(gd).then(function() {
gd.emit('plotly_redraw');
return gd;
});
};
/**
* Convenience function to make idempotent plot option obvious to users.
*
* @param gd
* @param {Object[]} data
* @param {Object} layout
* @param {Object} config
*/
Plotly.newPlot = function(gd, data, layout, config) {
gd = getGraphDiv(gd);
// remove gl contexts
Plots.cleanPlot([], {}, gd._fullData || {}, gd._fullLayout || {});
Plots.purge(gd);
return Plotly.plot(gd, data, layout, config);
};
function doCalcdata(gd) {
var axList = Plotly.Axes.list(gd),
fullData = gd._fullData,
fullLayout = gd._fullLayout;
var i, trace, module, cd;
var calcdata = gd.calcdata = new Array(fullData.length);
// extra helper variables
// firstscatter: fill-to-next on the first trace goes to zero
gd.firstscatter = true;
// how many box plots do we have (in case they're grouped)
gd.numboxes = 0;
// for calculating avg luminosity of heatmaps
gd._hmpixcount = 0;
gd._hmlumcount = 0;
// for sharing colors across pies (and for legend)
fullLayout._piecolormap = {};
fullLayout._piedefaultcolorcount = 0;
// initialize the category list, if there is one, so we start over
// to be filled in later by ax.d2c
for(i = 0; i < axList.length; i++) {
axList[i]._categories = axList[i]._initialCategories.slice();
}
for(i = 0; i < fullData.length; i++) {
trace = fullData[i];
module = trace._module;
cd = [];
if(module && trace.visible === true) {
if(module.calc) cd = module.calc(gd, trace);
}
// make sure there is a first point
// this ensures there is a calcdata item for every trace,
// even if cartesian logic doesn't handle it
if(!Array.isArray(cd) || !cd[0]) cd = [{x: false, y: false}];
// add the trace-wide properties to the first point,
// per point properties to every point
// t is the holder for trace-wide properties
if(!cd[0].t) cd[0].t = {};
cd[0].trace = trace;
calcdata[i] = cd;
}
}
/**
* Wrap negative indicies to their positive counterparts.
*
* @param {Number[]} indices An array of indices
* @param {Number} maxIndex The maximum index allowable (arr.length - 1)
*/
function positivifyIndices(indices, maxIndex) {
var parentLength = maxIndex + 1,
positiveIndices = [],
i,
index;
for(i = 0; i < indices.length; i++) {
index = indices[i];
if(index < 0) {
positiveIndices.push(parentLength + index);
} else {
positiveIndices.push(index);
}
}
return positiveIndices;
}
/**
* Ensures that an index array for manipulating gd.data is valid.
*
* Intended for use with addTraces, deleteTraces, and moveTraces.
*
* @param gd
* @param indices
* @param arrayName
*/
function assertIndexArray(gd, indices, arrayName) {
var i,
index;
for(i = 0; i < indices.length; i++) {
index = indices[i];
// validate that indices are indeed integers
if(index !== parseInt(index, 10)) {
throw new Error('all values in ' + arrayName + ' must be integers');
}
// check that all indices are in bounds for given gd.data array length
if(index >= gd.data.length || index < -gd.data.length) {
throw new Error(arrayName + ' must be valid indices for gd.data.');
}
// check that indices aren't repeated
if(indices.indexOf(index, i + 1) > -1 ||
index >= 0 && indices.indexOf(-gd.data.length + index) > -1 ||
index < 0 && indices.indexOf(gd.data.length + index) > -1) {
throw new Error('each index in ' + arrayName + ' must be unique.');
}
}
}
/**
* Private function used by Plotly.moveTraces to check input args
*
* @param gd
* @param currentIndices
* @param newIndices
*/
function checkMoveTracesArgs(gd, currentIndices, newIndices) {
// check that gd has attribute 'data' and 'data' is array
if(!Array.isArray(gd.data)) {
throw new Error('gd.data must be an array.');
}
// validate currentIndices array
if(typeof currentIndices === 'undefined') {
throw new Error('currentIndices is a required argument.');
} else if(!Array.isArray(currentIndices)) {
currentIndices = [currentIndices];
}
assertIndexArray(gd, currentIndices, 'currentIndices');
// validate newIndices array if it exists
if(typeof newIndices !== 'undefined' && !Array.isArray(newIndices)) {
newIndices = [newIndices];
}
if(typeof newIndices !== 'undefined') {
assertIndexArray(gd, newIndices, 'newIndices');
}
// check currentIndices and newIndices are the same length if newIdices exists
if(typeof newIndices !== 'undefined' && currentIndices.length !== newIndices.length) {
throw new Error('current and new indices must be of equal length.');
}
}
/**
* A private function to reduce the type checking clutter in addTraces.
*
* @param gd
* @param traces
* @param newIndices
*/