Function main

projects/parameterization/src/main.cpp:181–246

int main(int argc, char** argv) {

    // Configure the argument parser
    args::ArgumentParser parser("15-458 HW4");
    args::Positional<std::string> inputFilename(parser, "mesh", "A mesh file.");

    // Parse args
    try {
        parser.ParseCLI(argc, argv);
    } catch (args::Help&) {
        std::cout << parser;
        return 0;
    } catch (args::ParseError& e) {
        std::cerr << e.what() << std::endl;
        std::cerr << parser;
        return 1;
    }

    // If a mesh name was not given, use default mesh.
    std::string filepath = "../../../input/face.obj";
    if (inputFilename) {
        filepath = args::get(inputFilename);
    }

    MESHNAME = polyscope::guessNiceNameFromPath(filepath);

    // Load mesh
    std::tie(mesh_uptr, geometry_uptr) = readManifoldSurfaceMesh(filepath);
    mesh = mesh_uptr.release();
    geometry = geometry_uptr.release();

    if (mesh->nBoundaryLoops() == 0) {
        std::cerr << "Please load a mesh with at least 1 boundary loop" << std::endl;
        return EXIT_SUCCESS;
    }

    // Visualization stuff
    CoM = geometry->centerOfMass();
    geometry->normalize(CoM, true); // rescale to unit radius

    // Initialize polyscope
    polyscope::init();

    // Set the callback function
    polyscope::state::userCallback = functionCallback;

    // Add mesh to GUI
    psMesh = polyscope::registerSurfaceMesh(MESHNAME, geometry->inputVertexPositions, mesh->getFaceVertexList(),
                                            polyscopePermutations(*mesh));

    // Set up mesh for viewing
    flipZ();
    psMesh->setSmoothShade(true);
    psMesh->setSurfaceColor({1.0, 0.45, 0.0}); // orange

    initializeParameterizations();
    addCheckerboard(SCP_FLATTENING);