Function GetWorldTransformMatrix

src/cpp/wasm/web-ifc-wasm.cpp:322–339

* @brief Returns the 4x4 world transformation matrix for a given placement Express ID, * flattened into a 1D array of 16 doubles in **column-major order**. * * @param modelID: ID of the IFC model. * @param placementExpressId: Express ID of the placement (e.g. IfcLocalPlacement). * @return std::array containing the flattened matrix. */

 * @return std::array<double,16> containing the flattened matrix.
 */
std::array<double, 16> GetWorldTransformMatrix(uint32_t modelID, uint32_t placementExpressId)
{
    std::array<double, 16> out{};
    if (!manager.IsModelOpen(modelID))
        return out;

    glm::dmat4 m = manager.GetGeometryProcessor(modelID)->GetLoader().GetLocalPlacement(placementExpressId);

    int index = 0;
    for (int col = 0; col < 4; ++col)
    {
        for (int row = 0; row < 4; ++row)
        {
            out[index++] = m[col][row];
        }
    }
    return out;
}
std::vector<uint32_t> GetLineIDsWithType(uint32_t modelID, emscripten::val types)
{
    if (!manager.IsModelOpen(modelID))