const std::vector< std::pair<std::size_t,double> >& DirectConditionGenerator::directToSurfaceNodes(const MeshLib::Mesh &mesh, const std::string &filename) { if (_direct_values.empty()) { GeoLib::Raster* raster (GeoLib::IO::AsciiRasterInterface::readRaster(filename)); if (! raster) { ERR("Error in DirectConditionGenerator::directToSurfaceNodes() - could not load raster file."); return _direct_values; } const MathLib::Vector3 dir(0,0,-1); const std::vector<GeoLib::Point*> surface_nodes(MeshLib::MeshSurfaceExtraction::getSurfaceNodes(mesh, dir, 90) ); const std::size_t nNodes(surface_nodes.size()); const double no_data (raster->getHeader().no_data); _direct_values.reserve(nNodes); for (std::size_t i=0; i<nNodes; i++) { double val (raster->getValueAtPoint(*surface_nodes[i])); val = (val == no_data) ? 0 : val; _direct_values.push_back (std::pair<std::size_t, double>(surface_nodes[i]->getID(), val)); } delete raster; } else ERR("Error in DirectConditionGenerator::directToSurfaceNodes() - Data vector contains outdated values."); return _direct_values; }
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 "Error in DirectConditionGenerator::directWithSurfaceIntegration() - Data vector contains outdated values..."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; }
bool MeshLayerMapper::layerMapping(MeshLib::Mesh &new_mesh, GeoLib::Raster const& raster, double noDataReplacementValue = 0.0) { if (new_mesh.getDimension() != 2) { ERR("MshLayerMapper::layerMapping() - requires 2D mesh"); return false; } GeoLib::RasterHeader const& header (raster.getHeader()); const double x0(header.origin[0]); const double y0(header.origin[1]); const double delta(header.cell_size); const std::pair<double, double> xDim(x0, x0 + header.n_cols * delta); // extension in x-dimension const std::pair<double, double> yDim(y0, y0 + header.n_rows * delta); // extension in y-dimension const std::size_t nNodes (new_mesh.getNumberOfNodes()); const std::vector<MeshLib::Node*> &nodes = new_mesh.getNodes(); for (unsigned i = 0; i < nNodes; ++i) { if (!raster.isPntOnRaster(*nodes[i])) { // use either default value or elevation from layer above nodes[i]->updateCoordinates((*nodes[i])[0], (*nodes[i])[1], noDataReplacementValue); continue; } double elevation (raster.interpolateValueAtPoint(*nodes[i])); if (std::abs(elevation - header.no_data) < std::numeric_limits<double>::epsilon()) elevation = noDataReplacementValue; nodes[i]->updateCoordinates((*nodes[i])[0], (*nodes[i])[1], elevation); } return true; }
double LayeredMeshGenerator::calcEpsilon(GeoLib::Raster const& low, GeoLib::Raster const& high) { const double max (*std::max_element(high.begin(), high.end())); const double min (*std::min_element( low.begin(), low.end())); return ((max-min)*1e-07); }