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Address scattergl performance issue with TypeArrays #5632

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merged 2 commits into from
May 5, 2021
Merged

Address scattergl performance issue with TypeArrays #5632

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32a8e8f
Address performance issue with ArrayBuffers
May 5, 2021
f8d552e
Check for TypeArray instead of ArrayBuffer
May 5, 2021
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3 changes: 2 additions & 1 deletion src/components/color/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@

var tinycolor = require('tinycolor2');
var isNumeric = require('fast-isnumeric');
var isTypedArray = require('../../lib/array').isTypedArray;

var color = module.exports = {};

Expand Down Expand Up @@ -116,7 +117,7 @@ color.clean = function(container) {
if(!Array.isArray(el0) && el0 && typeof el0 === 'object') {
for(j = 0; j < val.length; j++) color.clean(val[j]);
}
} else if(val && typeof val === 'object') color.clean(val);
} else if(val && typeof val === 'object' && !isTypedArray(val)) color.clean(val);
}
};

Expand Down
16 changes: 7 additions & 9 deletions src/traces/scattergl/calc.js
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ module.exports = function calc(gd, trace) {
var hasTooManyPoints = len >= TOO_MANY_POINTS;
var len2 = len * 2;
var stash = {};
var i, xx, yy;
var i;

var origX = xa.makeCalcdata(trace, 'x');
var origY = ya.makeCalcdata(trace, 'y');
Expand All @@ -42,11 +42,12 @@ module.exports = function calc(gd, trace) {
// we need hi-precision for scatter2d,
// regl-scatter2d uses NaNs for bad/missing values
var positions = new Array(len2);
var _ids = new Array(len);
for(i = 0; i < len; i++) {
xx = x[i];
yy = y[i];
positions[i * 2] = xx === BADNUM ? NaN : xx;
positions[i * 2 + 1] = yy === BADNUM ? NaN : yy;
positions[i * 2] = x[i] === BADNUM ? NaN : x[i];
positions[i * 2 + 1] = y[i] === BADNUM ? NaN : y[i];
// Pre-compute ids.
_ids[i] = i;
}

if(xa.type === 'log') {
Expand All @@ -66,10 +67,7 @@ module.exports = function calc(gd, trace) {
// FIXME: delegate this to webworker
stash.tree = cluster(positions);
} else {
var ids = stash.ids = new Array(len);
for(i = 0; i < len; i++) {
ids[i] = i;
}
stash.ids = _ids;
}

// create scene options and scene
Expand Down