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index.js
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/**
* Copyright 2012-2018, 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 createScatter = require('regl-scatter2d');
var createLine = require('regl-line2d');
var createError = require('regl-error2d');
var cluster = require('point-cluster');
var arrayRange = require('array-range');
var Text = require('gl-text');
var Registry = require('../../registry');
var Lib = require('../../lib');
var prepareRegl = require('../../lib/prepare_regl');
var AxisIDs = require('../../plots/cartesian/axis_ids');
var findExtremes = require('../../plots/cartesian/autorange').findExtremes;
var Color = require('../../components/color');
var subTypes = require('../scatter/subtypes');
var scatterCalc = require('../scatter/calc');
var calcMarkerSize = scatterCalc.calcMarkerSize;
var calcAxisExpansion = scatterCalc.calcAxisExpansion;
var setFirstScatter = scatterCalc.setFirstScatter;
var calcColorscales = require('../scatter/colorscale_calc');
var linkTraces = require('../scatter/link_traces');
var getTraceColor = require('../scatter/get_trace_color');
var fillHoverText = require('../scatter/fill_hover_text');
var convert = require('./convert');
var BADNUM = require('../../constants/numerical').BADNUM;
var TOO_MANY_POINTS = require('./constants').TOO_MANY_POINTS;
var DESELECTDIM = require('../../constants/interactions').DESELECTDIM;
function calc(gd, trace) {
var fullLayout = gd._fullLayout;
var xa = AxisIDs.getFromId(gd, trace.xaxis);
var ya = AxisIDs.getFromId(gd, trace.yaxis);
var subplot = fullLayout._plots[trace.xaxis + trace.yaxis];
var count = trace._length;
var count2 = count * 2;
var stash = {};
var i, xx, yy;
var x = xa.makeCalcdata(trace, 'x');
var y = ya.makeCalcdata(trace, 'y');
// we need hi-precision for scatter2d,
// regl-scatter2d uses NaNs for bad/missing values
var positions = new Array(count2);
for(i = 0; i < count; i++) {
xx = x[i];
yy = y[i];
positions[i * 2] = xx === BADNUM ? NaN : xx;
positions[i * 2 + 1] = yy === BADNUM ? NaN : yy;
}
if(xa.type === 'log') {
for(i = 0; i < count2; i += 2) {
positions[i] = xa.c2l(positions[i]);
}
}
if(ya.type === 'log') {
for(i = 1; i < count2; i += 2) {
positions[i] = ya.c2l(positions[i]);
}
}
// we don't build a tree for log axes since it takes long to convert log2px
// and it is also
if(xa.type !== 'log' && ya.type !== 'log') {
// FIXME: delegate this to webworker
stash.tree = cluster(positions);
} else {
var ids = stash.ids = new Array(count);
for(i = 0; i < count; i++) {
ids[i] = i;
}
}
// create scene options and scene
calcColorscales(trace);
var opts = sceneOptions(gd, subplot, trace, positions, x, y);
var scene = sceneUpdate(gd, subplot);
// Reuse SVG scatter axis expansion routine.
// For graphs with very large number of points and array marker.size,
// use average marker size instead to speed things up.
setFirstScatter(fullLayout, trace);
var ppad;
if(count < TOO_MANY_POINTS) {
ppad = calcMarkerSize(trace, count);
} else if(opts.marker) {
ppad = 2 * (opts.marker.sizeAvg || Math.max(opts.marker.size, 3));
}
calcAxisExpansion(gd, trace, xa, ya, x, y, ppad);
if(opts.errorX) expandForErrorBars(trace, xa, opts.errorX);
if(opts.errorY) expandForErrorBars(trace, ya, opts.errorY);
// set flags to create scene renderers
if(opts.fill && !scene.fill2d) scene.fill2d = true;
if(opts.marker && !scene.scatter2d) scene.scatter2d = true;
if(opts.line && !scene.line2d) scene.line2d = true;
if((opts.errorX || opts.errorY) && !scene.error2d) scene.error2d = true;
if(opts.text && !scene.glText) scene.glText = true;
// FIXME: organize it in a more appropriate manner, probably in sceneOptions
// put point-cluster instance for optimized regl calc
if(opts.marker && count >= TOO_MANY_POINTS) {
opts.marker.cluster = stash.tree;
}
// save scene opts batch
scene.lineOptions.push(opts.line);
scene.errorXOptions.push(opts.errorX);
scene.errorYOptions.push(opts.errorY);
scene.fillOptions.push(opts.fill);
scene.markerOptions.push(opts.marker);
scene.markerSelectedOptions.push(opts.markerSel);
scene.markerUnselectedOptions.push(opts.markerUnsel);
scene.textOptions.push(opts.text);
scene.textSelectedOptions.push(opts.textSel);
scene.textUnselectedOptions.push(opts.textUnsel);
// stash scene ref
stash._scene = scene;
stash.index = scene.count;
stash.x = x;
stash.y = y;
stash.positions = positions;
stash.count = count;
scene.count++;
return [{x: false, y: false, t: stash, trace: trace}];
}
function expandForErrorBars(trace, ax, opts) {
var extremes = trace._extremes[ax._id];
var errExt = findExtremes(ax, opts._bnds, {padded: true});
extremes.min = extremes.min.concat(errExt.min);
extremes.max = extremes.max.concat(errExt.max);
}
// create scene options
function sceneOptions(gd, subplot, trace, positions, x, y) {
var opts = convert.style(gd, trace);
if(opts.marker) {
opts.marker.positions = positions;
}
if(opts.line && positions.length > 1) {
Lib.extendFlat(
opts.line,
convert.linePositions(gd, trace, positions)
);
}
if(opts.errorX || opts.errorY) {
var errors = convert.errorBarPositions(gd, trace, positions, x, y);
if(opts.errorX) {
Lib.extendFlat(opts.errorX, errors.x);
}
if(opts.errorY) {
Lib.extendFlat(opts.errorY, errors.y);
}
}
if(opts.text) {
Lib.extendFlat(
opts.text,
{positions: positions},
convert.textPosition(gd, trace, opts.text, opts.marker)
);
Lib.extendFlat(
opts.textSel,
{positions: positions},
convert.textPosition(gd, trace, opts.text, opts.markerSel)
);
Lib.extendFlat(
opts.textUnsel,
{positions: positions},
convert.textPosition(gd, trace, opts.text, opts.markerUnsel)
);
}
return opts;
}
// make sure scene exists on subplot, return it
function sceneUpdate(gd, subplot) {
var scene = subplot._scene;
var resetOpts = {
// number of traces in subplot, since scene:subplot → 1:1
count: 0,
// whether scene requires init hook in plot call (dirty plot call)
dirty: true,
// last used options
lineOptions: [],
fillOptions: [],
markerOptions: [],
markerSelectedOptions: [],
markerUnselectedOptions: [],
errorXOptions: [],
errorYOptions: [],
textOptions: [],
textSelectedOptions: [],
textUnselectedOptions: []
};
var initOpts = {
selectBatch: null,
unselectBatch: null,
// regl- component stubs, initialized in dirty plot call
fill2d: false,
scatter2d: false,
error2d: false,
line2d: false,
glText: false,
select2d: null
};
if(!subplot._scene) {
scene = subplot._scene = {};
scene.init = function init() {
Lib.extendFlat(scene, initOpts, resetOpts);
};
scene.init();
// apply new option to all regl components (used on drag)
scene.update = function update(opt) {
var opts = Lib.repeat(opt, scene.count);
if(scene.fill2d) scene.fill2d.update(opts);
if(scene.scatter2d) scene.scatter2d.update(opts);
if(scene.line2d) scene.line2d.update(opts);
if(scene.error2d) scene.error2d.update(opts.concat(opts));
if(scene.select2d) scene.select2d.update(opts);
if(scene.glText) {
for(var i = 0; i < scene.count; i++) {
scene.glText[i].update(opt);
}
}
scene.draw();
};
// draw traces in proper order
scene.draw = function draw() {
var i;
var we_must_draw_previous_line_marker = 0;
for(i = 0; i < scene.count; i++) {
var we_defer_somes_draw = 0;
if(scene.fill2d && scene.fillOptions[i] && scene.fillOptions[i].fillmode && scene.fillOptions[i].fillmode === 'tonext') {
we_defer_somes_draw = 1;
} else {
if(we_must_draw_previous_line_marker && scene.line2d && scene.lineOptions[i - 1]) {
scene.line2d.draw(i - 1);
}
if(we_must_draw_previous_line_marker && scene.scatter2d && scene.markerOptions[i - 1]) {
scene.scatter2d.draw(i - 1);
}
we_must_draw_previous_line_marker = 0;
}
if(scene.fill2d && scene.fillOptions[i]) {
scene.fill2d.draw(i);
}
// we draw line2d
if(we_must_draw_previous_line_marker && scene.line2d && scene.lineOptions[i - 1]) {
scene.line2d.draw(i - 1);
}
if(scene.line2d && scene.lineOptions[i]) {
if(we_defer_somes_draw === 0) {
scene.line2d.draw(i);
}
}
if(scene.error2d && scene.errorXOptions[i]) {
scene.error2d.draw(i);
}
if(scene.error2d && scene.errorYOptions[i]) {
scene.error2d.draw(i + scene.count);
}
// we draw scatter2d
if(!scene.selectBatch || !scene.selectBatch[i]) {
if(we_must_draw_previous_line_marker && scene.scatter2d && scene.markerOptions[i - 1]) {
scene.scatter2d.draw(i - 1);
}
if(scene.scatter2d && scene.markerOptions[i]) {
if(we_defer_somes_draw === 0) {
scene.scatter2d.draw(i);
}
}
}
if(scene.glText[i] && scene.textOptions[i]) {
scene.glText[i].render();
}
if(we_defer_somes_draw === 1) {
we_must_draw_previous_line_marker = 1;
} else {
we_must_draw_previous_line_marker = 0;
}
}
// draw traces in selection mode
if(scene.scatter2d && scene.select2d && scene.selectBatch) {
scene.select2d.draw(scene.selectBatch);
scene.scatter2d.draw(scene.unselectBatch);
}
scene.dirty = false;
};
scene.clear = function clear() {
var vp = getViewport(gd._fullLayout, subplot.xaxis, subplot.yaxis);
if(scene.select2d) {
clearViewport(scene.select2d, vp);
}
var anyComponent = scene.scatter2d || scene.line2d ||
(scene.glText || [])[0] || scene.fill2d || scene.error2d;
if(anyComponent) clearViewport(anyComponent, vp);
};
// remove scene resources
scene.destroy = function destroy() {
if(scene.fill2d) scene.fill2d.destroy();
if(scene.scatter2d) scene.scatter2d.destroy();
if(scene.error2d) scene.error2d.destroy();
if(scene.line2d) scene.line2d.destroy();
if(scene.select2d) scene.select2d.destroy();
if(scene.glText) {
scene.glText.forEach(function(text) { text.destroy(); });
}
scene.lineOptions = null;
scene.fillOptions = null;
scene.markerOptions = null;
scene.markerSelectedOptions = null;
scene.markerUnselectedOptions = null;
scene.errorXOptions = null;
scene.errorYOptions = null;
scene.textOptions = null;
scene.textSelectedOptions = null;
scene.textUnselectedOptions = null;
scene.selectBatch = null;
scene.unselectBatch = null;
// we can't just delete _scene, because `destroy` is called in the
// middle of supplyDefaults, before relinkPrivateKeys which will put it back.
subplot._scene = null;
};
}
// In case if we have scene from the last calc - reset data
if(!scene.dirty) {
Lib.extendFlat(scene, resetOpts);
}
return scene;
}
function getViewport(fullLayout, xaxis, yaxis) {
var gs = fullLayout._size;
var width = fullLayout.width;
var height = fullLayout.height;
return [
gs.l + xaxis.domain[0] * gs.w,
gs.b + yaxis.domain[0] * gs.h,
(width - gs.r) - (1 - xaxis.domain[1]) * gs.w,
(height - gs.t) - (1 - yaxis.domain[1]) * gs.h
];
}
function clearViewport(comp, vp) {
var gl = comp.regl._gl;
gl.enable(gl.SCISSOR_TEST);
gl.scissor(vp[0], vp[1], vp[2] - vp[0], vp[3] - vp[1]);
gl.clearColor(0, 0, 0, 0);
gl.clear(gl.COLOR_BUFFER_BIT);
}
function plot(gd, subplot, cdata) {
if(!cdata.length) return;
var fullLayout = gd._fullLayout;
var scene = subplot._scene;
var xaxis = subplot.xaxis;
var yaxis = subplot.yaxis;
var i, j;
// we may have more subplots than initialized data due to Axes.getSubplots method
if(!scene) return;
var success = prepareRegl(gd, ['ANGLE_instanced_arrays', 'OES_element_index_uint']);
if(!success) {
scene.init();
return;
}
var regl = fullLayout._glcanvas.data()[0].regl;
// that is needed for fills
linkTraces(gd, subplot, cdata);
if(scene.dirty) {
// make sure scenes are created
if(scene.error2d === true) {
scene.error2d = createError(regl);
}
if(scene.line2d === true) {
scene.line2d = createLine(regl);
}
if(scene.scatter2d === true) {
scene.scatter2d = createScatter(regl);
}
if(scene.fill2d === true) {
scene.fill2d = createLine(regl);
}
if(scene.glText === true) {
scene.glText = new Array(scene.count);
for(i = 0; i < scene.count; i++) {
scene.glText[i] = new Text(regl);
}
}
// update main marker options
if(scene.glText) {
for(i = 0; i < scene.count; i++) {
scene.glText[i].update(scene.textOptions[i]);
}
}
if(scene.line2d) {
scene.line2d.update(scene.lineOptions);
scene.lineOptions = scene.lineOptions.map(function(lineOptions) {
if(lineOptions && lineOptions.positions) {
var pos = [], srcPos = lineOptions.positions;
var firstptdef = 0;
while(isNaN(srcPos[firstptdef]) || isNaN(srcPos[firstptdef + 1])) {
firstptdef += 2;
}
var lastptdef = srcPos.length - 2;
while(isNaN(srcPos[lastptdef]) || isNaN(srcPos[lastptdef + 1])) {
lastptdef += -2;
}
pos = pos.concat(srcPos.slice(firstptdef, lastptdef + 2));
lineOptions.positions = pos;
}
return lineOptions;
});
scene.line2d.update(scene.lineOptions);
}
if(scene.error2d) {
var errorBatch = (scene.errorXOptions || []).concat(scene.errorYOptions || []);
scene.error2d.update(errorBatch);
}
if(scene.scatter2d) {
scene.scatter2d.update(scene.markerOptions);
}
// fill requires linked traces, so we generate it's positions here
if(scene.fill2d) {
scene.fillOptions = scene.fillOptions.map(function(fillOptions, i) {
var cdscatter = cdata[i];
if(!fillOptions || !cdscatter || !cdscatter[0] || !cdscatter[0].trace) return;
var cd = cdscatter[0];
var trace = cd.trace;
var stash = cd.t;
var lineOptions = scene.lineOptions[i];
var last, j;
var pos = [], srcPos = (lineOptions && lineOptions.positions) || stash.positions;
if(trace.fill === 'tozeroy') {
var firstpdef = 0;
while(isNaN(srcPos[firstpdef + 1])) {
firstpdef += 2;
}
var lastpdef = srcPos.length - 2;
while(isNaN(srcPos[lastpdef + 1])) {
lastpdef += -2;
}
if(srcPos[firstpdef + 1] !== 0) {
pos = [ srcPos[firstpdef], 0 ];
}
pos = pos.concat(srcPos.slice(firstpdef, lastpdef + 2));
if(srcPos[lastpdef + 1] !== 0) {
pos = pos.concat([ srcPos[lastpdef], 0 ]);
}
}
else if(trace.fill === 'tozerox') {
var firstptdef = 0;
while(isNaN(srcPos[firstptdef])) {
firstptdef += 2;
}
var lastptdef = srcPos.length - 2;
while(isNaN(srcPos[lastptdef])) {
lastptdef += -2;
}
if(srcPos[firstptdef] !== 0) {
pos = [ 0, srcPos[firstptdef + 1] ];
}
pos = pos.concat(srcPos.slice(firstptdef, lastptdef + 2));
if(srcPos[lastptdef] !== 0) {
pos = pos.concat([ 0, srcPos[lastptdef + 1]]);
}
}
else if(trace.fill === 'toself' || trace.fill === 'tonext') {
pos = [];
last = 0;
for(j = 0; j < srcPos.length; j += 2) {
if(isNaN(srcPos[j]) || isNaN(srcPos[j + 1])) {
pos = pos.concat(srcPos.slice(last, j));
pos.push(srcPos[last], srcPos[last + 1]);
last = j + 2;
}
}
pos = pos.concat(srcPos.slice(last));
if(last) {
pos.push(srcPos[last], srcPos[last + 1]);
}
}
else {
var nextTrace = trace._nexttrace;
if(nextTrace) {
var nextOptions = scene.lineOptions[i + 1];
if(nextOptions) {
var nextPos = nextOptions.positions;
if(trace.fill === 'tonexty') {
pos = srcPos.slice();
for(i = Math.floor(nextPos.length / 2); i--;) {
var xx = nextPos[i * 2], yy = nextPos[i * 2 + 1];
if(isNaN(xx) || isNaN(yy)) continue;
pos.push(xx);
pos.push(yy);
}
fillOptions.fill = nextTrace.fillcolor;
}
}
}
}
// detect prev trace positions to exclude from current fill
if(trace._prevtrace && trace._prevtrace.fill === 'tonext') {
var prevLinePos = scene.lineOptions[i - 1].positions;
// FIXME: likely this logic should be tested better
var offset = pos.length / 2;
last = offset;
var hole = [last];
for(j = 0; j < prevLinePos.length; j += 2) {
if(isNaN(prevLinePos[j]) || isNaN(prevLinePos[j + 1])) {
hole.push(j / 2 + offset + 1);
last = j + 2;
}
}
pos = pos.concat(prevLinePos);
fillOptions.hole = hole;
}
fillOptions.fillmode = trace.fill;
fillOptions.opacity = trace.opacity;
fillOptions.positions = pos;
return fillOptions;
});
scene.fill2d.update(scene.fillOptions);
}
}
// form batch arrays, and check for selected points
scene.selectBatch = null;
scene.unselectBatch = null;
var dragmode = fullLayout.dragmode;
var selectMode = dragmode === 'lasso' || dragmode === 'select';
var clickSelectEnabled = fullLayout.clickmode.indexOf('select') > -1;
for(i = 0; i < cdata.length; i++) {
var cd0 = cdata[i][0];
var trace = cd0.trace;
var stash = cd0.t;
var index = stash.index;
var x = stash.x;
var y = stash.y;
if(trace.selectedpoints || selectMode || clickSelectEnabled) {
if(!selectMode) selectMode = true;
if(!scene.selectBatch) {
scene.selectBatch = [];
scene.unselectBatch = [];
}
// regenerate scene batch, if traces number changed during selection
if(trace.selectedpoints) {
var selPts = scene.selectBatch[index] = Lib.selIndices2selPoints(trace);
var selDict = {};
for(j = 0; j < selPts.length; j++) {
selDict[selPts[j]] = 1;
}
var unselPts = [];
for(j = 0; j < stash.count; j++) {
if(!selDict[j]) unselPts.push(j);
}
scene.unselectBatch[index] = unselPts;
}
// precalculate px coords since we are not going to pan during select
// TODO, could do better here e.g.
// - spin that in a webworker
// - compute selection from polygons in data coordinates
// (maybe just for linear axes)
var xpx = stash.xpx = new Array(stash.count);
var ypx = stash.ypx = new Array(stash.count);
for(j = 0; j < stash.count; j++) {
xpx[j] = xaxis.c2p(x[j]);
ypx[j] = yaxis.c2p(y[j]);
}
} else {
stash.xpx = stash.ypx = null;
}
}
if(selectMode) {
// create select2d
if(!scene.select2d) {
// create scatter instance by cloning scatter2d
scene.select2d = createScatter(fullLayout._glcanvas.data()[1].regl);
}
if(scene.scatter2d && scene.selectBatch && scene.selectBatch.length) {
// update only traces with selection
scene.scatter2d.update(scene.markerUnselectedOptions.map(function(opts, i) {
return scene.selectBatch[i] ? opts : null;
}));
}
if(scene.select2d) {
scene.select2d.update(scene.markerOptions);
scene.select2d.update(scene.markerSelectedOptions);
}
if(scene.glText) {
cdata.forEach(function(cdscatter) {
if(cdscatter && cdscatter[0] && cdscatter[0].trace) {
styleTextSelection(cdscatter);
}
});
}
} else {
if(scene.scatter2d) {
// reset scatter2d opts to base opts,
// thus unsetting markerUnselectedOptions from selection
scene.scatter2d.update(scene.markerOptions);
}
}
// provide viewport and range
var vpRange0 = {
viewport: getViewport(fullLayout, xaxis, yaxis),
// TODO do we need those fallbacks?
range: [
(xaxis._rl || xaxis.range)[0],
(yaxis._rl || yaxis.range)[0],
(xaxis._rl || xaxis.range)[1],
(yaxis._rl || yaxis.range)[1]
]
};
var vpRange = Lib.repeat(vpRange0, scene.count);
// upload viewport/range data to GPU
if(scene.fill2d) {
scene.fill2d.update(vpRange);
}
if(scene.line2d) {
scene.line2d.update(vpRange);
}
if(scene.error2d) {
scene.error2d.update(vpRange.concat(vpRange));
}
if(scene.scatter2d) {
scene.scatter2d.update(vpRange);
}
if(scene.select2d) {
scene.select2d.update(vpRange);
}
if(scene.glText) {
scene.glText.forEach(function(text) { text.update(vpRange0); });
}
scene.draw();
}
function hoverPoints(pointData, xval, yval, hovermode) {
var cd = pointData.cd;
var stash = cd[0].t;
var trace = cd[0].trace;
var xa = pointData.xa;
var ya = pointData.ya;
var x = stash.x;
var y = stash.y;
var xpx = xa.c2p(xval);
var ypx = ya.c2p(yval);
var maxDistance = pointData.distance;
var ids;
// FIXME: make sure this is a proper way to calc search radius
if(stash.tree) {
var xl = xa.p2c(xpx - maxDistance);
var xr = xa.p2c(xpx + maxDistance);
var yl = ya.p2c(ypx - maxDistance);
var yr = ya.p2c(ypx + maxDistance);
if(hovermode === 'x') {
ids = stash.tree.range(
Math.min(xl, xr), Math.min(ya._rl[0], ya._rl[1]),
Math.max(xl, xr), Math.max(ya._rl[0], ya._rl[1])
);
}
else {
ids = stash.tree.range(
Math.min(xl, xr), Math.min(yl, yr),
Math.max(xl, xr), Math.max(yl, yr)
);
}
}
else if(stash.ids) {
ids = stash.ids;
}
else return [pointData];
// pick the id closest to the point
// note that point possibly may not be found
var id, ptx, pty, i, dx, dy, dist, dxy;
var minDist = maxDistance;
if(hovermode === 'x') {
for(i = 0; i < ids.length; i++) {
ptx = x[ids[i]];
dx = Math.abs(xa.c2p(ptx) - xpx);
if(dx < minDist) {
minDist = dx;
dy = ya.c2p(y[ids[i]]) - ypx;
dxy = Math.sqrt(dx * dx + dy * dy);
id = ids[i];
}
}
}
else {
for(i = 0; i < ids.length; i++) {
ptx = x[ids[i]];
pty = y[ids[i]];
dx = xa.c2p(ptx) - xpx;
dy = ya.c2p(pty) - ypx;
dist = Math.sqrt(dx * dx + dy * dy);
if(dist < minDist) {
minDist = dxy = dist;
id = ids[i];
}
}
}
pointData.index = id;
pointData.distance = minDist;
pointData.dxy = dxy;
if(id === undefined) return [pointData];
calcHover(pointData, x, y, trace);
return [pointData];
}
function calcHover(pointData, x, y, trace) {
var xa = pointData.xa;
var ya = pointData.ya;
var minDist = pointData.distance;
var dxy = pointData.dxy;
var id = pointData.index;
// the closest data point
var di = {
pointNumber: id,
x: x[id],
y: y[id]
};
// that is single-item arrays_to_calcdata excerpt, since we are doing it for a single point and we don't have to do it beforehead for 1e6 points
di.tx = Array.isArray(trace.text) ? trace.text[id] : trace.text;
di.htx = Array.isArray(trace.hovertext) ? trace.hovertext[id] : trace.hovertext;
di.data = Array.isArray(trace.customdata) ? trace.customdata[id] : trace.customdata;
di.tp = Array.isArray(trace.textposition) ? trace.textposition[id] : trace.textposition;
var font = trace.textfont;
if(font) {
di.ts = Array.isArray(font.size) ? font.size[id] : font.size;
di.tc = Array.isArray(font.color) ? font.color[id] : font.color;
di.tf = Array.isArray(font.family) ? font.family[id] : font.family;
}
var marker = trace.marker;
if(marker) {
di.ms = Lib.isArrayOrTypedArray(marker.size) ? marker.size[id] : marker.size;
di.mo = Lib.isArrayOrTypedArray(marker.opacity) ? marker.opacity[id] : marker.opacity;
di.mx = Array.isArray(marker.symbol) ? marker.symbol[id] : marker.symbol;
di.mc = Lib.isArrayOrTypedArray(marker.color) ? marker.color[id] : marker.color;
}
var line = marker && marker.line;
if(line) {
di.mlc = Array.isArray(line.color) ? line.color[id] : line.color;
di.mlw = Lib.isArrayOrTypedArray(line.width) ? line.width[id] : line.width;
}
var grad = marker && marker.gradient;
if(grad && grad.type !== 'none') {
di.mgt = Array.isArray(grad.type) ? grad.type[id] : grad.type;
di.mgc = Array.isArray(grad.color) ? grad.color[id] : grad.color;
}
var xp = xa.c2p(di.x, true);
var yp = ya.c2p(di.y, true);
var rad = di.mrc || 1;
var hoverlabel = trace.hoverlabel;
if(hoverlabel) {
di.hbg = Array.isArray(hoverlabel.bgcolor) ? hoverlabel.bgcolor[id] : hoverlabel.bgcolor;
di.hbc = Array.isArray(hoverlabel.bordercolor) ? hoverlabel.bordercolor[id] : hoverlabel.bordercolor;
di.hts = Array.isArray(hoverlabel.font.size) ? hoverlabel.font.size[id] : hoverlabel.font.size;
di.htc = Array.isArray(hoverlabel.font.color) ? hoverlabel.font.color[id] : hoverlabel.font.color;
di.htf = Array.isArray(hoverlabel.font.family) ? hoverlabel.font.family[id] : hoverlabel.font.family;
di.hnl = Array.isArray(hoverlabel.namelength) ? hoverlabel.namelength[id] : hoverlabel.namelength;
}
var hoverinfo = trace.hoverinfo;
if(hoverinfo) {
di.hi = Array.isArray(hoverinfo) ? hoverinfo[id] : hoverinfo;
}
var fakeCd = {};
fakeCd[pointData.index] = di;
Lib.extendFlat(pointData, {
color: getTraceColor(trace, di),
x0: xp - rad,
x1: xp + rad,
xLabelVal: di.x,
y0: yp - rad,
y1: yp + rad,
yLabelVal: di.y,
cd: fakeCd,
distance: minDist,
spikeDistance: dxy
});
if(di.htx) pointData.text = di.htx;
else if(di.tx) pointData.text = di.tx;
else if(trace.text) pointData.text = trace.text;
fillHoverText(di, trace, pointData);
Registry.getComponentMethod('errorbars', 'hoverInfo')(di, trace, pointData);
return pointData;
}
function selectPoints(searchInfo, selectionTester) {
var cd = searchInfo.cd;
var selection = [];
var trace = cd[0].trace;
var stash = cd[0].t;
var x = stash.x;
var y = stash.y;
var scene = stash._scene;
if(!scene) return selection;
var hasText = subTypes.hasText(trace);
var hasMarkers = subTypes.hasMarkers(trace);
var hasOnlyLines = !hasMarkers && !hasText;
if(trace.visible !== true || hasOnlyLines) return selection;
// degenerate polygon does not enable selection
// filter out points by visible scatter ones
var els = null;
var unels = null;
// FIXME: clearing selection does not work here
var i;
if(selectionTester !== false && !selectionTester.degenerate) {
els = [], unels = [];
for(i = 0; i < stash.count; i++) {
if(selectionTester.contains([stash.xpx[i], stash.ypx[i]], false, i, searchInfo)) {
els.push(i);
selection.push({
pointNumber: i,
x: x[i],
y: y[i]
});
}
else {
unels.push(i);
}
}
} else {
unels = arrayRange(stash.count);
}
// make sure selectBatch is created
if(!scene.selectBatch) {
scene.selectBatch = [];
scene.unselectBatch = [];
}
if(!scene.selectBatch[stash.index]) {
// enter every trace select mode
for(i = 0; i < scene.count; i++) {
scene.selectBatch[i] = [];
scene.unselectBatch[i] = [];
}
// we should turn scatter2d into unselected once we have any points selected
if(hasMarkers) {
scene.scatter2d.update(scene.markerUnselectedOptions);
}
}
scene.selectBatch[stash.index] = els;
scene.unselectBatch[stash.index] = unels;
// update text options
if(hasText) {
styleTextSelection(cd);
}
return selection;
}
function style(gd, cds) {
if(!cds) return;
var stash = cds[0][0].t;
var scene = stash._scene;
// don't clear the subplot if there are splom traces
// on the graph
if(!gd._fullLayout._has('splom')) {
scene.clear();
}
scene.draw();
}
function styleTextSelection(cd) {
var cd0 = cd[0];
var stash = cd0.t;
var scene = stash._scene;
var index = stash.index;
var els = scene.selectBatch[index];
var unels = scene.unselectBatch[index];
var baseOpts = scene.textOptions[index];
var selOpts = scene.textSelectedOptions[index] || {};
var unselOpts = scene.textUnselectedOptions[index] || {};
var opts = Lib.extendFlat({}, baseOpts);
var i, j;
if(els && unels) {
var stc = selOpts.color;
var utc = unselOpts.color;
var base = baseOpts.color;
var hasArrayBase = Array.isArray(base);
opts.color = new Array(stash.count);
for(i = 0; i < els.length; i++) {
j = els[i];
opts.color[j] = stc || (hasArrayBase ? base[j] : base);
}