molstar
Version:
A comprehensive macromolecular library.
114 lines • 5.59 kB
JavaScript
;
/**
* Copyright (c) 2020 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author Alexander Rose <alexander.rose@weirdbyte.de>
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.CylindersBuilder = void 0;
var util_1 = require("../../../mol-data/util");
var cylinders_1 = require("./cylinders");
var linear_algebra_1 = require("../../../mol-math/linear-algebra");
var tmpVecA = (0, linear_algebra_1.Vec3)();
var tmpVecB = (0, linear_algebra_1.Vec3)();
var tmpDir = (0, linear_algebra_1.Vec3)();
// avoiding namespace lookup improved performance in Chrome (Aug 2020)
var caAdd = util_1.ChunkedArray.add;
var caAdd3 = util_1.ChunkedArray.add3;
var CylindersBuilder;
(function (CylindersBuilder) {
function create(initialCount, chunkSize, cylinders) {
if (initialCount === void 0) { initialCount = 2048; }
if (chunkSize === void 0) { chunkSize = 1024; }
var groups = util_1.ChunkedArray.create(Float32Array, 1, chunkSize, cylinders ? cylinders.groupBuffer.ref.value : initialCount);
var starts = util_1.ChunkedArray.create(Float32Array, 3, chunkSize, cylinders ? cylinders.startBuffer.ref.value : initialCount);
var ends = util_1.ChunkedArray.create(Float32Array, 3, chunkSize, cylinders ? cylinders.endBuffer.ref.value : initialCount);
var scales = util_1.ChunkedArray.create(Float32Array, 1, chunkSize, cylinders ? cylinders.scaleBuffer.ref.value : initialCount);
var caps = util_1.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 = linear_algebra_1.Vec3.distance(start, end);
var s = Math.floor(segmentCount / 2);
var step = 1 / segmentCount;
linear_algebra_1.Vec3.sub(tmpDir, end, start);
for (var j = 0; j < s; ++j) {
var f = step * (j * 2 + 1);
linear_algebra_1.Vec3.setMagnitude(tmpDir, tmpDir, d * f);
linear_algebra_1.Vec3.add(tmpVecA, start, tmpDir);
linear_algebra_1.Vec3.setMagnitude(tmpDir, tmpDir, d * step * ((j + 1) * 2));
linear_algebra_1.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 = linear_algebra_1.Vec3.distance(start, end);
addFixedCountDashes(start, end, d / segmentLength, radiusScale, topCap, bottomCap, group);
},
getCylinders: function () {
var cylinderCount = groups.elementCount / 6;
var gb = util_1.ChunkedArray.compact(groups, true);
var sb = util_1.ChunkedArray.compact(starts, true);
var eb = util_1.ChunkedArray.compact(ends, true);
var ab = util_1.ChunkedArray.compact(scales, true);
var cb = util_1.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_1.Cylinders.create(mb, ib, gb, sb, eb, ab, cb, cylinderCount, cylinders);
}
};
}
CylindersBuilder.create = create;
})(CylindersBuilder = exports.CylindersBuilder || (exports.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