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Fix CGNS reader for 2d meshes, cleanup

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This commit is contained in:
Matthias Hochsteger 2020-07-15 13:31:16 +02:00
parent ec3d7c3ec9
commit 7058732e23
1 changed files with 94 additions and 71 deletions
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165
libsrc/interface/rw_cgns.cpp
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@ -176,9 +176,11 @@ namespace netgen::cg
{
ZoneType_t zone_type;
int fn, base, zone;
int nv, ne, first_mat, first_bc;
Array<int> materials;
Array<int> boundaries;
int first_index_1d, first_index_2d, first_index_3d;
int nv=0, ne_1d=0, ne_2d=0, ne_3d=0;
Array<string> names_1d, names_2d, names_3d;
string name;
cgsize_t size[3];
@ -200,7 +202,7 @@ namespace netgen::cg
solutions[si] = Solution{fn, base, zone, si+1};
}
void ReadSolutions( std::vector<string> & sol_names, std::vector<Array<double>> & sol_values, std::vector<int> & sol_locations )
void ReadSolutions( int meshdim, std::vector<string> & sol_names, std::vector<Array<double>> & sol_values, std::vector<int> & sol_locations )
{
static Timer tall("CGNS::ReadSolutions"); RegionTimer rtall(tall);
for (auto & sol : solutions)
@ -208,6 +210,7 @@ namespace netgen::cg
for (auto fi : Range(sol.field_names.Size()))
{
cgsize_t size = sol.n_points;
size=0; // TODO: check if sol.point_type is a list or range, and handle appropriately
if(size==0)
{
switch(sol.location)
@ -216,7 +219,7 @@ namespace netgen::cg
size = nv;
break;
case CellCenter:
size = ne;
size = (meshdim == 3 ? ne_3d : ne_2d);
break;
case FaceCenter:
case IFaceCenter:
@ -228,7 +231,6 @@ namespace netgen::cg
}
}
size = size==0 ? nv : size;
auto values = Array<double>(size);
cgsize_t imin = 1UL;
@ -244,9 +246,9 @@ namespace netgen::cg
{
static Timer tall("CGNS::ReadMesh-Zone"); RegionTimer rtall(tall);
static Timer tsection("CGNS::ReadMesh-Section");
first_mat = mesh.GetRegionNamesCD(0).Size();
first_bc = mesh.GetRegionNamesCD(1).Size();
ne = 0;
first_index_1d = mesh.GetRegionNamesCD(2).Size();
first_index_2d = mesh.GetRegionNamesCD(1).Size();
first_index_3d = mesh.GetRegionNamesCD(0).Size();
Array<double> x(nv), y(nv), z(nv);
cgsize_t imin=1;
@ -276,8 +278,10 @@ namespace netgen::cg
int nsections;
cg_nsections(fn, base, zone, &nsections);
int bc = first_bc;
int material = first_mat;
int index_1d = first_index_1d;
int index_2d = first_index_2d;
int index_3d = first_index_3d;
for (auto section : Range(1,nsections+1))
{
RegionTimer rtsection(tsection);
@ -288,8 +292,6 @@ namespace netgen::cg
cg_section_read(fn, base, zone, section, sec_name, &type, &start, &end, &nbndry, &parent_flag);
PrintMessage(4, "Read section ", section, " with name ", sec_name, " and element type ", cg_ElementTypeName(type));
if(name == "Coil" && string(sec_name) == "Top")
continue;
string ngname{sec_name};
@ -300,6 +302,7 @@ namespace netgen::cg
if(type==MIXED)
{
bool have_1d_elements = false;
bool have_2d_elements = false;
bool have_3d_elements = false;
@ -327,40 +330,50 @@ namespace netgen::cg
if(dim==1)
{
if(!have_1d_elements)
{
index_1d++;
have_1d_elements = true;
mesh.AddEdgeDescriptor(EdgeDescriptor{});
names_1d.Append(ngname);
}
auto el = ReadCGNSElement1D(type, vertices.Range(vi, vertices.Size()));
el.si = index_1d;
mesh.AddSegment(el);
vi += el.GetNP();
ne_1d++;
}
if(dim==2)
{
if(!have_2d_elements)
{
bc++;
index_2d++;
have_2d_elements = true;
mesh.AddFaceDescriptor(FaceDescriptor(bc, 1, 0, 1));
mesh.SetBCName(bc-1, ngname);
mesh.AddFaceDescriptor(FaceDescriptor(index_2d, 1, 0, 1));
names_2d.Append(ngname);
}
auto el = ReadCGNSElement2D(type, vertices.Range(vi, vertices.Size()));
el.SetIndex(bc);
el.SetIndex(index_2d);
mesh.AddSurfaceElement(el);
vi += el.GetNP();
ne_2d++;
}
if(dim==3)
{
if(!have_3d_elements)
{
material++;
index_3d++;
have_3d_elements = true;
mesh.SetMaterial(material, ngname);
names_3d.Append(ngname);
}
auto el = ReadCGNSElement3D(type, vertices.Range(vi, vertices.Size()));
el.SetIndex(material);
el.SetIndex(index_3d);
mesh.AddVolumeElement(el);
vi += el.GetNP();
ne++;
ne_3d++;
}
}
}
@ -381,48 +394,78 @@ namespace netgen::cg
if(dim==1)
{
index_1d++;
mesh.AddEdgeDescriptor(EdgeDescriptor{});
names_1d.Append(ngname);
for(auto i : Range(ne_section))
{
auto el = ReadCGNSElement1D(type, vertices.Range(np*i, np*(i+1)));
el.si = index_1d;
mesh.AddSegment(el);
}
ne_1d += ne_section;
}
if(dim==2)
{
bc++;
mesh.AddFaceDescriptor(FaceDescriptor(bc, 1, 0, 1));
index_2d++;
mesh.AddFaceDescriptor(FaceDescriptor(index_2d, 1, 0, 1));
names_2d.Append(ngname);
for(auto i : Range(ne_section))
{
auto el = ReadCGNSElement2D(type, vertices.Range(np*i, np*(i+1)));
el.SetIndex(bc);
el.SetIndex(index_2d);
mesh.AddSurfaceElement(el);
}
mesh.SetBCName(bc-1, ngname);
ne_2d += ne_section;
}
if(dim==3)
{
material++;
index_3d++;
names_3d.Append(ngname);
for(auto i : Range(ne_section))
{
auto el = ReadCGNSElement3D(type, vertices.Range(np*i, np*(i+1)));
el.SetIndex(material);
el.SetIndex(index_3d);
mesh.AddVolumeElement(el);
}
mesh.SetMaterial(material, ngname);
ne += ne_section;
ne_3d += ne_section;
}
}
}
}
void SetNames( Mesh & mesh )
{
if(mesh.GetDimension() == 2)
{
for (auto i : Range(names_1d.Size()))
mesh.SetBCName(first_index_1d + i, names_1d[i]);
for (auto i : Range(names_2d.Size()))
mesh.SetMaterial(first_index_2d + i +1, names_2d[i]);
}
else
{
for (auto i : Range(names_1d.Size()))
mesh.SetCD2Name(first_index_1d + i +1, names_1d[i]);
for (auto i : Range(names_2d.Size()))
mesh.SetBCName(first_index_2d + i, names_2d[i]);
for (auto i : Range(names_3d.Size()))
mesh.SetMaterial(first_index_3d + i +1, names_3d[i]);
}
}
};
}
namespace netgen
{
void ReadCGNSMesh (Mesh & mesh, const string & filename)
int ReadCGNSMesh (Mesh & mesh, const string & filename, Array<unique_ptr<cg::Zone>> & zones)
{
mesh.SetDimension(3);
static Timer tall("CGNS::ReadMesh"); RegionTimer rtall(tall);
int fn;
cg_open(filename.c_str(),CG_MODE_READ,&fn);
@ -431,9 +474,6 @@ namespace netgen
int nzones;
cg_nzones(fn, base, &nzones);
int bc = 0;
int material = 0;
int n_vertices = 0;
for (auto zi : Range(1, nzones+1))
{
@ -454,58 +494,41 @@ namespace netgen
PrintMessage(2, "skipping zone with type ", cg_ZoneTypeName(zone_type) );
continue;
}
cg::Zone zone(fn, base, zi);
zone.ReadMesh( mesh, points );
auto zone = make_unique<cg::Zone>(fn, base, zi);
zone->ReadMesh( mesh, points );
zones.Append(std::move(zone));
}
if(mesh.GetNE() == 0)
mesh.SetDimension(2);
for (auto & zone : zones)
zone->SetNames(mesh);
return fn;
}
void ReadCGNSMesh (Mesh & mesh, const string & filename)
{
Array<unique_ptr<cg::Zone>> zones;
int fn = ReadCGNSMesh(mesh, filename, zones);
cg_close(fn);
}
// Reads mesh and solutions of .csns file
tuple<shared_ptr<Mesh>, vector<string>, vector<Array<double>>, vector<int>> ReadCGNSFile(string filename, int base)
{
static Timer tall("CGNS::ReadFile"); RegionTimer rtall(tall);
int fn;
cg_open(filename.c_str(),CG_MODE_READ,&fn);
int nbases;
cg_nbases(fn, &nbases);
int nzones;
cg_nzones(fn, base, &nzones);
auto mesh = make_shared<Mesh>();
int bc = 0;
int material = 0;
Array<unique_ptr<cg::Zone>> zones;
int fn = ReadCGNSMesh(*mesh, filename, zones);
std::vector<string> names;
std::vector<Array<double>> values;
std::vector<int> locations;
int n_vertices = 0;
for (auto zi : Range(1, nzones+1))
{
int size[3];
char name[100];
cg_zone_read(fn,base,zi, name, size);
n_vertices += size[0];
}
cg::PointTable points(2*n_vertices);
for (auto zi : Range(1, nzones+1))
{
ZoneType_t zone_type;
cg_zone_type(fn, base, zi, &zone_type);
if(zone_type != Unstructured )
{
clog << "skipping zone with type " << cg_ZoneTypeName(zone_type) << endl;
continue;
}
cg::Zone zone(fn, base, zi);
zone.ReadMesh( *mesh, points );
zone.ReadSolutions( names, values, locations );
}
for (auto & zone : zones)
zone->ReadSolutions( mesh->GetDimension(), names, values, locations );
cg_close(fn);
return std::make_tuple(mesh, names, values, locations);