molstar
Version:
A comprehensive macromolecular library.
30 lines (29 loc) • 1.26 kB
JavaScript
/**
* Copyright (c) 2018-2020 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author Alexander Rose <alexander.rose@weirdbyte.de>
*/
import { ChunkedArray } from '../../../mol-data/util';
import { Points } from './points';
// avoiding namespace lookup improved performance in Chrome (Aug 2020)
const caAdd3 = ChunkedArray.add3;
const caAdd = ChunkedArray.add;
export var PointsBuilder;
(function (PointsBuilder) {
function create(initialCount = 2048, chunkSize = 1024, points) {
const centers = ChunkedArray.create(Float32Array, 3, chunkSize, points ? points.centerBuffer.ref.value : initialCount);
const groups = ChunkedArray.create(Float32Array, 1, chunkSize, points ? points.groupBuffer.ref.value : initialCount);
return {
add: (x, y, z, group) => {
caAdd3(centers, x, y, z);
caAdd(groups, group);
},
getPoints: () => {
const cb = ChunkedArray.compact(centers, true);
const gb = ChunkedArray.compact(groups, true);
return Points.create(cb, gb, centers.elementCount, points);
}
};
}
PointsBuilder.create = create;
})(PointsBuilder || (PointsBuilder = {}));