@woosh/meep-engine/src/core/geom/3d/tetrahedra/compute_tetrahedron_volume.js

Pure JavaScript game engine. Fully featured and production ready.

import { tetrahedron_compute_signed_volume } from "./tetrahedron_compute_signed_volume.js";

/**
 *
 * @param {TetrahedralMesh} mesh
 * @param {ArrayLike<number>|number[]} points
 * @param {number} tet_index
 * @return {number}
 */
export function compute_tetrahedron_volume(mesh, points, tet_index) {

    const a = mesh.getVertexIndex(tet_index, 0);
    const b = mesh.getVertexIndex(tet_index, 1);
    const c = mesh.getVertexIndex(tet_index, 2);
    const d = mesh.getVertexIndex(tet_index, 3);

    return tetrahedron_compute_signed_volume(points, a, b, c, d);
}