const std::vector< std::pair<size_t,double> >& DirectConditionGenerator::directWithSurfaceIntegration(MeshLib::Mesh &mesh, const std::string &filename, double scaling)
{
if (_direct_values.empty())
{
GeoLib::Raster* raster (GeoLib::Raster::readRaster(filename));
if (!raster) {
ERR("Error in DirectConditionGenerator::directWithSurfaceIntegration() - could not load raster file.");
return _direct_values;
}
const MathLib::Vector3 dir(0,0,-1);
MeshLib::Mesh* sfc_mesh (MeshLib::MeshSurfaceExtraction::getMeshSurface(mesh, dir, true));
std::vector<double> node_area_vec;
MeshLib::MeshSurfaceExtraction::getSurfaceAreaForNodes(*sfc_mesh, node_area_vec);
const std::vector<MeshLib::Node*> &surface_nodes (sfc_mesh->getNodes());
const size_t nNodes(sfc_mesh->getNNodes());
const double no_data (raster->getNoDataValue());
_direct_values.reserve(nNodes);
for (size_t i=0; i<nNodes; ++i)
{
double val (raster->getValueAtPoint(*surface_nodes[i]));
val = (val == no_data) ? 0 : ((val*node_area_vec[i])/scaling);
_direct_values.push_back (std::pair<size_t, double>(surface_nodes[i]->getID(), val));
}
delete raster;
}
else
std::cout << "Error in DirectConditionGenerator::directWithSurfaceIntegration() - Data vector contains outdated values..." << std::endl;
return _direct_values;
}
void MshView::extractSurfaceMesh()
{
QModelIndex index = this->selectionModel()->currentIndex();
if (!index.isValid())
return;
const MeshLib::Mesh* mesh = static_cast<MshModel*>(this->model())->getMesh(index);
SurfaceExtractionDialog dlg;
if (dlg.exec() != QDialog::Accepted)
return;
MathLib::Vector3 const& dir (dlg.getNormal());
int const tolerance (dlg.getTolerance());
MeshLib::Mesh* sfc_mesh (MeshLib::MeshSurfaceExtraction::getMeshSurface(*mesh, dir, tolerance));
if (sfc_mesh != nullptr)
static_cast<MshModel*>(this->model())->addMesh(sfc_mesh);
else
OGSError::box(" No surfaces found to extract\n using the specified parameters.");
}
MeshLib::Mesh* addLayerToMesh(MeshLib::Mesh const& mesh, double thickness,
std::string const& name,
bool on_top)
{
INFO("Extracting top surface of mesh \"%s\" ... ", mesh.getName().c_str());
int const flag = (on_top) ? -1 : 1;
const MathLib::Vector3 dir(0, 0, flag);
double const angle(90);
std::unique_ptr<MeshLib::Mesh> sfc_mesh (nullptr);
std::string const prop_name("OriginalSubsurfaceNodeIDs");
if (mesh.getDimension() == 3)
sfc_mesh.reset(MeshLib::MeshSurfaceExtraction::getMeshSurface(
mesh, dir, angle, prop_name));
else {
sfc_mesh = (on_top) ? std::unique_ptr<MeshLib::Mesh>(new MeshLib::Mesh(mesh)) :
std::unique_ptr<MeshLib::Mesh>(MeshLib::createFlippedMesh(mesh));
// add property storing node ids
auto* const pv =
sfc_mesh->getProperties().createNewPropertyVector<std::size_t>(
prop_name, MeshLib::MeshItemType::Node, 1);
if (pv) {
pv->resize(sfc_mesh->getNumberOfNodes());
std::iota(pv->begin(), pv->end(), 0);
} else {
ERR("Could not create and initialize property.");
return nullptr;
}
}
INFO("done.");
// *** add new surface nodes
std::vector<MeshLib::Node*> subsfc_nodes =
MeshLib::copyNodeVector(mesh.getNodes());
std::vector<MeshLib::Element*> subsfc_elements =
MeshLib::copyElementVector(mesh.getElements(), subsfc_nodes);
std::size_t const n_subsfc_nodes(subsfc_nodes.size());
std::vector<MeshLib::Node*> const& sfc_nodes(sfc_mesh->getNodes());
std::size_t const n_sfc_nodes(sfc_nodes.size());
// fetch subsurface node ids PropertyVector
auto const* const node_id_pv =
sfc_mesh->getProperties().getPropertyVector<std::size_t>(prop_name);
if (!node_id_pv) {
ERR(
"Need subsurface node ids, but the property \"%s\" is not "
"available.",
prop_name.c_str());
return nullptr;
}
// *** copy sfc nodes to subsfc mesh node
std::map<std::size_t, std::size_t> subsfc_sfc_id_map;
for (std::size_t k(0); k<n_sfc_nodes; ++k) {
std::size_t const subsfc_id((*node_id_pv)[k]);
std::size_t const sfc_id(k+n_subsfc_nodes);
subsfc_sfc_id_map.insert(std::make_pair(subsfc_id, sfc_id));
MeshLib::Node const& node(*sfc_nodes[k]);
subsfc_nodes.push_back(new MeshLib::Node(
node[0], node[1], node[2] - (flag * thickness), sfc_id));
}
// *** insert new layer elements into subsfc_mesh
std::vector<MeshLib::Element*> const& sfc_elements(sfc_mesh->getElements());
std::size_t const n_sfc_elements(sfc_elements.size());
for (std::size_t k(0); k<n_sfc_elements; ++k)
subsfc_elements.push_back(extrudeElement(
subsfc_nodes, *sfc_elements[k], *node_id_pv, subsfc_sfc_id_map));
auto new_mesh = new MeshLib::Mesh(name, subsfc_nodes, subsfc_elements);
auto const* const opt_materials =
mesh.getProperties().getPropertyVector<int>("MaterialIDs");
if (!opt_materials)
{
ERR("Could not copy the property \"MaterialIDs\" since the original "
"mesh does not contain such a property.");
return new_mesh;
}
auto* const new_materials =
new_mesh->getProperties().createNewPropertyVector<int>(
"MaterialIDs", MeshLib::MeshItemType::Cell, 1);
if (!new_materials)
{
ERR("Can not set material properties for new layer");
return new_mesh;
}
new_materials->reserve(subsfc_elements.size());
int new_layer_id(
*(std::max_element(opt_materials->cbegin(), opt_materials->cend())) +
1);
std::copy(opt_materials->cbegin(), opt_materials->cend(),
std::back_inserter(*new_materials));
auto const n_new_props(subsfc_elements.size() - mesh.getNumberOfElements());
std::fill_n(std::back_inserter(*new_materials), n_new_props, new_layer_id);
return new_mesh;
}
TEST(GeoLib, SurfaceIsPointInSurface)
{
std::vector<std::function<double(double, double)>> surface_functions;
surface_functions.push_back(constant);
surface_functions.push_back(coscos);
for (auto f : surface_functions) {
std::random_device rd;
std::string name("Surface");
// generate ll and ur in random way
std::mt19937 random_engine_mt19937(rd());
std::normal_distribution<> normal_dist_ll(-10, 2);
std::normal_distribution<> normal_dist_ur(10, 2);
MathLib::Point3d ll(std::array<double,3>({{
normal_dist_ll(random_engine_mt19937),
normal_dist_ll(random_engine_mt19937),
0.0
}
}));
MathLib::Point3d ur(std::array<double,3>({{
normal_dist_ur(random_engine_mt19937),
normal_dist_ur(random_engine_mt19937),
0.0
}
}));
for (std::size_t k(0); k<3; ++k)
if (ll[k] > ur[k])
std::swap(ll[k], ur[k]);
// random discretization of the domain
std::default_random_engine re(rd());
std::uniform_int_distribution<std::size_t> uniform_dist(2, 25);
std::array<std::size_t,2> n_steps = {{uniform_dist(re),uniform_dist(re)}};
std::unique_ptr<MeshLib::Mesh> sfc_mesh(
MeshLib::MeshGenerator::createSurfaceMesh(
name, ll, ur, n_steps, f
)
);
// random rotation angles
std::normal_distribution<> normal_dist_angles(
0, boost::math::double_constants::two_pi);
std::array<double,3> euler_angles = {{
normal_dist_angles(random_engine_mt19937),
normal_dist_angles(random_engine_mt19937),
normal_dist_angles(random_engine_mt19937)
}
};
MathLib::DenseMatrix<double, std::size_t> rot_mat(getRotMat(
euler_angles[0], euler_angles[1], euler_angles[2]));
std::vector<MeshLib::Node*> const& nodes(sfc_mesh->getNodes());
GeoLib::rotatePoints<MeshLib::Node>(rot_mat, nodes);
MathLib::Vector3 const normal(0,0,1.0);
MathLib::Vector3 const surface_normal(rot_mat * normal);
double const eps(1e-6);
MathLib::Vector3 const displacement(eps * surface_normal);
GeoLib::GEOObjects geometries;
MeshLib::convertMeshToGeo(*sfc_mesh, geometries);
std::vector<GeoLib::Surface*> const& sfcs(*geometries.getSurfaceVec(name));
GeoLib::Surface const*const sfc(sfcs.front());
std::vector<GeoLib::Point*> const& pnts(*geometries.getPointVec(name));
// test triangle edge point of the surface triangles
for (auto const p : pnts) {
EXPECT_TRUE(sfc->isPntInSfc(*p));
MathLib::Point3d q(*p);
for (std::size_t k(0); k<3; ++k)
q[k] += displacement[k];
EXPECT_FALSE(sfc->isPntInSfc(q));
}
// test edge middle points of the triangles
for (std::size_t k(0); k<sfc->getNTriangles(); ++k) {
MathLib::Point3d p, q, r;
std::tie(p,q,r) = getEdgeMiddlePoints(*(*sfc)[k]);
EXPECT_TRUE(sfc->isPntInSfc(p));
EXPECT_TRUE(sfc->isPntInSfc(q));
EXPECT_TRUE(sfc->isPntInSfc(r));
}
}
}