molstar
Version:
A comprehensive macromolecular library.
28 lines (27 loc) • 1.33 kB
JavaScript
/**
* Copyright (c) 2019 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author Alexander Rose <alexander.rose@weirdbyte.de>
*/
import { Vec3, Mat4 } from '../../../../mol-math/linear-algebra';
import { MeshBuilder } from '../mesh-builder';
import { Axes3D } from '../../../../mol-math/geometry';
import { createCage } from '../../../primitive/cage';
const tmpVec = Vec3();
const tmpMatrix = Mat4.identity();
const tmpVertices = new Float32Array(6 * 3);
const tmpEdges = new Uint8Array([0, 1, 2, 3, 4, 5]);
export function addAxes(state, axes, radiusScale, detail, radialSegments) {
const { origin, dirA, dirB, dirC } = axes;
Vec3.add(tmpVec, origin, dirA);
Vec3.toArray(Vec3.add(tmpVec, origin, dirA), tmpVertices, 0);
Vec3.toArray(Vec3.sub(tmpVec, origin, dirA), tmpVertices, 3);
Vec3.toArray(Vec3.add(tmpVec, origin, dirB), tmpVertices, 6);
Vec3.toArray(Vec3.sub(tmpVec, origin, dirB), tmpVertices, 9);
Vec3.toArray(Vec3.add(tmpVec, origin, dirC), tmpVertices, 12);
Vec3.toArray(Vec3.sub(tmpVec, origin, dirC), tmpVertices, 15);
const cage = createCage(tmpVertices, tmpEdges);
const volume = Axes3D.volume(axes);
const radius = (Math.cbrt(volume) / 300) * radiusScale;
MeshBuilder.addCage(state, tmpMatrix, cage, radius, detail, radialSegments);
}