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| project(RefinedSurfaceMesh LANGUAGES CXX) | ||
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| add_executable(${PROJECT_NAME} "${PROJECT_NAME}.cpp") | ||
| target_link_libraries(${PROJECT_NAME} PRIVATE ViennaLS) | ||
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| add_dependencies(ViennaLS_Tests ${PROJECT_NAME}) | ||
| add_test(NAME ${PROJECT_NAME} COMMAND $<TARGET_FILE:${PROJECT_NAME}>) |
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| #include <chrono> | ||
| #include <iostream> | ||
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| #include <lsBooleanOperation.hpp> | ||
| #include <lsDomain.hpp> | ||
| #include <lsExpand.hpp> | ||
| #include <lsFromSurfaceMesh.hpp> | ||
| #include <lsMakeGeometry.hpp> | ||
| #include <lsToSurfaceMeshRefined.hpp> | ||
| #include <lsToVoxelMesh.hpp> | ||
| #include <lsVTKWriter.hpp> | ||
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| /** | ||
| Minimal example showing how to write different | ||
| meshes created by the algorithms lsToVoxelMesh and lsToSurfaceMesh. | ||
| \example Make3DSphere.cpp | ||
| */ | ||
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| namespace ls = viennals; | ||
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| int main() { | ||
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| constexpr int D = 3; | ||
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| omp_set_num_threads(1); | ||
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| double gridDelta = 0.4; | ||
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| auto sphere1 = ls::SmartPointer<ls::Domain<double, D>>::New( | ||
| gridDelta); //, boundaryCons); | ||
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| auto sphere2 = ls::SmartPointer<ls::Domain<double, D>>::New( | ||
| gridDelta); //, boundaryCons); | ||
| double origin[3] = {5., 0., 0.}; | ||
| double radius = 7.3; | ||
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| ls::MakeGeometry<double, D>( | ||
| sphere1, ls::SmartPointer<ls::Sphere<double, D>>::New(origin, radius)) | ||
| .apply(); | ||
| origin[0] = -5.; | ||
| ls::MakeGeometry<double, D>( | ||
| sphere2, ls::SmartPointer<ls::Sphere<double, D>>::New(origin, radius)) | ||
| .apply(); | ||
| ls::BooleanOperation<double, D>(sphere1, sphere2, | ||
| ls::BooleanOperationEnum::UNION) | ||
| .apply(); | ||
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| std::cout << "Number of points: " << sphere1->getDomain().getNumberOfPoints() | ||
| << std::endl; | ||
| auto mesh = ls::SmartPointer<ls::Mesh<>>::New(); | ||
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| ls::ToSurfaceMeshRefined<double, double, D>(sphere1, mesh).apply(); | ||
| ls::VTKWriter<double>(mesh, "test-refined.vtp").apply(); | ||
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| std::cout << "Refined mesh written to test-refined.vtp" << std::endl; | ||
| std::cout << "Number of points: " << mesh->nodes.size() << std::endl; | ||
| std::cout << "Number of triangles: " << mesh->triangles.size() << std::endl; | ||
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| auto &nodes = mesh->nodes; | ||
| auto minNodeDistance = | ||
| ls::ToSurfaceMeshRefined<double, double, D>::minNodeDistance; | ||
| for (unsigned i = 0; i < nodes.size(); ++i) { | ||
| for (unsigned j = i + 1; j < nodes.size(); ++j) { | ||
| double dist = 0.; | ||
| // manhattan distance | ||
| for (unsigned k = 0; k < D; ++k) { | ||
| dist += std::abs(nodes[i][k] - nodes[j][k]); | ||
| } | ||
| if (dist < minNodeDistance) { | ||
| std::cout << "Distance between nodes " << i << " and " << j | ||
| << " is smaller than minNodeDistance: " << dist << std::endl; | ||
| } | ||
| } | ||
| } | ||
| std::cout << "Minimum node distance: " << minNodeDistance << std::endl; | ||
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| ls::ToSurfaceMeshRefined<double, double, D> noCheck(sphere1, mesh); | ||
| noCheck.setCheckNodeDistance(false); | ||
| noCheck.apply(); | ||
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| std::cout << "Not refined mesh written to test-not-refined.vtp" << std::endl; | ||
| std::cout << "Number of points: " << mesh->nodes.size() << std::endl; | ||
| std::cout << "Number of triangles: " << mesh->triangles.size() << std::endl; | ||
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| ls::VTKWriter<double>(mesh, "test-no-refined.vtp").apply(); | ||
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| return 0; | ||
| } |