molstar
Version:
A comprehensive macromolecular library.
111 lines • 5.16 kB
JavaScript
/**
* Copyright (c) 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 { Cylinders } from './cylinders';
import { Vec3 } from '../../../mol-math/linear-algebra';
var tmpVecA = Vec3();
var tmpVecB = Vec3();
var tmpDir = Vec3();
// avoiding namespace lookup improved performance in Chrome (Aug 2020)
var caAdd = ChunkedArray.add;
var caAdd3 = ChunkedArray.add3;
export var CylindersBuilder;
(function (CylindersBuilder) {
function create(initialCount, chunkSize, cylinders) {
if (initialCount === void 0) { initialCount = 2048; }
if (chunkSize === void 0) { chunkSize = 1024; }
var groups = ChunkedArray.create(Float32Array, 1, chunkSize, cylinders ? cylinders.groupBuffer.ref.value : initialCount);
var starts = ChunkedArray.create(Float32Array, 3, chunkSize, cylinders ? cylinders.startBuffer.ref.value : initialCount);
var ends = ChunkedArray.create(Float32Array, 3, chunkSize, cylinders ? cylinders.endBuffer.ref.value : initialCount);
var scales = ChunkedArray.create(Float32Array, 1, chunkSize, cylinders ? cylinders.scaleBuffer.ref.value : initialCount);
var caps = ChunkedArray.create(Float32Array, 1, chunkSize, cylinders ? cylinders.capBuffer.ref.value : initialCount);
var add = function (startX, startY, startZ, endX, endY, endZ, radiusScale, topCap, bottomCap, group) {
for (var i = 0; i < 6; ++i) {
caAdd3(starts, startX, startY, startZ);
caAdd3(ends, endX, endY, endZ);
caAdd(groups, group);
caAdd(scales, radiusScale);
caAdd(caps, (topCap ? 1 : 0) + (bottomCap ? 2 : 0));
}
};
var addFixedCountDashes = function (start, end, segmentCount, radiusScale, topCap, bottomCap, group) {
var d = Vec3.distance(start, end);
var s = Math.floor(segmentCount / 2);
var step = 1 / segmentCount;
Vec3.sub(tmpDir, end, start);
for (var j = 0; j < s; ++j) {
var f = step * (j * 2 + 1);
Vec3.setMagnitude(tmpDir, tmpDir, d * f);
Vec3.add(tmpVecA, start, tmpDir);
Vec3.setMagnitude(tmpDir, tmpDir, d * step * ((j + 1) * 2));
Vec3.add(tmpVecB, start, tmpDir);
add(tmpVecA[0], tmpVecA[1], tmpVecA[2], tmpVecB[0], tmpVecB[1], tmpVecB[2], radiusScale, topCap, bottomCap, group);
}
};
return {
add: add,
addFixedCountDashes: addFixedCountDashes,
addFixedLengthDashes: function (start, end, segmentLength, radiusScale, topCap, bottomCap, group) {
var d = Vec3.distance(start, end);
addFixedCountDashes(start, end, d / segmentLength, radiusScale, topCap, bottomCap, group);
},
getCylinders: function () {
var cylinderCount = groups.elementCount / 6;
var gb = ChunkedArray.compact(groups, true);
var sb = ChunkedArray.compact(starts, true);
var eb = ChunkedArray.compact(ends, true);
var ab = ChunkedArray.compact(scales, true);
var cb = ChunkedArray.compact(caps, true);
var mb = cylinders && cylinderCount <= cylinders.cylinderCount ? cylinders.mappingBuffer.ref.value : new Float32Array(cylinderCount * 18);
var ib = cylinders && cylinderCount <= cylinders.cylinderCount ? cylinders.indexBuffer.ref.value : new Uint32Array(cylinderCount * 12);
if (!cylinders || cylinderCount > cylinders.cylinderCount)
fillMappingAndIndices(cylinderCount, mb, ib);
return Cylinders.create(mb, ib, gb, sb, eb, ab, cb, cylinderCount, cylinders);
}
};
}
CylindersBuilder.create = create;
})(CylindersBuilder || (CylindersBuilder = {}));
function fillMappingAndIndices(n, mb, ib) {
for (var i = 0; i < n; ++i) {
var mo = i * 18;
mb[mo] = -1;
mb[mo + 1] = 1;
mb[mo + 2] = -1;
mb[mo + 3] = -1;
mb[mo + 4] = -1;
mb[mo + 5] = -1;
mb[mo + 6] = 1;
mb[mo + 7] = 1;
mb[mo + 8] = -1;
mb[mo + 9] = 1;
mb[mo + 10] = 1;
mb[mo + 11] = 1;
mb[mo + 12] = 1;
mb[mo + 13] = -1;
mb[mo + 14] = -1;
mb[mo + 15] = 1;
mb[mo + 16] = -1;
mb[mo + 17] = 1;
}
for (var i = 0; i < n; ++i) {
var o = i * 6;
var io = i * 12;
ib[io] = o;
ib[io + 1] = o + 1;
ib[io + 2] = o + 2;
ib[io + 3] = o + 1;
ib[io + 4] = o + 4;
ib[io + 5] = o + 2;
ib[io + 6] = o + 2;
ib[io + 7] = o + 4;
ib[io + 8] = o + 3;
ib[io + 9] = o + 4;
ib[io + 10] = o + 5;
ib[io + 11] = o + 3;
}
}
//# sourceMappingURL=cylinders-builder.js.map