std::size_t ElementSearch::searchByBoundingBox(
GeoLib::AABB const& aabb)
{
auto matchedIDs = filter(_mesh.getElements(),
[&aabb](MeshLib::Element* e) {
std::size_t const nElemNodes (e->getNumberOfBaseNodes());
for (std::size_t n=0; n < nElemNodes; ++n)
if (aabb.containsPoint(*e->getNode(n), 0))
return true; // any node of element is in aabb.
return false; // no nodes of element are in aabb.
});
this->updateUnion(matchedIDs);
return matchedIDs.size();
}
void Mesh2MeshPropertyInterpolation::interpolatePropertiesForMesh(Mesh *dest_mesh, std::vector<double>& dest_properties) const
{
// carry over property information from source elements to source nodes
std::vector<double> interpolated_src_node_properties(_src_mesh->getNumberOfNodes());
interpolateElementPropertiesToNodeProperties(interpolated_src_node_properties);
// looping over the destination elements and calculate properties
// from interpolated_src_node_properties
std::vector<MeshLib::Node*> const& src_nodes(_src_mesh->getNodes());
GeoLib::Grid<MeshLib::Node> src_grid(src_nodes.begin(), src_nodes.end(), 64);
auto materialIds = dest_mesh->getProperties().getPropertyVector<int>("MaterialIDs");
if (!materialIds)
materialIds = dest_mesh->getProperties().createNewPropertyVector<int>(
"MaterialIDs", MeshLib::MeshItemType::Cell, 1);
if (!materialIds)
{
ERR("Could not create PropertyVector for MaterialIDs in Mesh.");
return;
}
std::vector<MeshLib::Element*> const& dest_elements(dest_mesh->getElements());
const std::size_t n_dest_elements(dest_elements.size());
for (std::size_t k(0); k<n_dest_elements; k++)
{
// compute axis aligned bounding box around the current element
const GeoLib::AABB elem_aabb(dest_elements[k]->getNodes(), dest_elements[k]->getNodes()+dest_elements[k]->getNumberOfBaseNodes());
// request "interesting" nodes from grid
std::vector<std::vector<MeshLib::Node*> const*> nodes;
src_grid.getPntVecsOfGridCellsIntersectingCuboid(elem_aabb.getMinPoint(), elem_aabb.getMaxPoint(), nodes);
std::size_t cnt(0);
dest_properties[k] = 0.0;
for (std::size_t i(0); i<nodes.size(); ++i) {
std::vector<MeshLib::Node*> const* i_th_vec(nodes[i]);
const std::size_t n_nodes_in_vec(i_th_vec->size());
for (std::size_t j(0); j<n_nodes_in_vec; j++) {
MeshLib::Node const*const j_th_node((*i_th_vec)[j]);
if (elem_aabb.containsPoint(*j_th_node)) {
if (dest_elements[k]->isPntInElement(*j_th_node, 30)) {
dest_properties[k] += interpolated_src_node_properties[(*i_th_vec)[j]->getID()];
cnt++;
}
}
}
}
dest_properties[k] /= cnt;
materialIds->push_back(k);
if (cnt == 0) {
std::string base_name("DebugData/Element-");
base_name += std::to_string(k);
std::string aabb_fname(base_name + "-aabb.gli");
std::ofstream out_aabb(aabb_fname.c_str());
out_aabb << "#POINTS" << "\n";
out_aabb << "0 " << elem_aabb.getMinPoint() << "\n";
out_aabb << "1 " << elem_aabb.getMaxPoint() << "\n";
out_aabb << "#STOP" << "\n";
out_aabb.close();
std::string source_fname(base_name + "-SourceNodes.gli");
std::ofstream out_src(source_fname.c_str());
out_src << "#POINTS" << "\n";
std::size_t nodes_cnt(0);
for (std::size_t i(0); i<nodes.size(); ++i) {
std::vector<MeshLib::Node*> const* i_th_vec(nodes[i]);
const std::size_t n_nodes_in_vec(i_th_vec->size());
for (std::size_t j(0); j<n_nodes_in_vec; j++) {
MeshLib::Node const*const j_th_node((*i_th_vec)[j]);
out_src << nodes_cnt << " " << *(dynamic_cast<GeoLib::Point const*>(j_th_node)) << "\n";
nodes_cnt++;
}
}
out_src << "#STOP" << "\n";
out_src.close();
ERR("no source nodes in dest element %d", k);
}
}
}