mirror of
https://github.com/NGSolve/netgen.git
synced 2024-11-12 00:59:16 +05:00
566 lines
18 KiB
C++
566 lines
18 KiB
C++
#ifndef FILE_OCCGEOM
|
|
#define FILE_OCCGEOM
|
|
|
|
/* *************************************************************************/
|
|
/* File: occgeom.hpp */
|
|
/* Author: Robert Gaisbauer */
|
|
/* Date: 26. May 03 */
|
|
/* *************************************************************************/
|
|
|
|
#ifdef OCCGEOMETRY
|
|
|
|
#include <set>
|
|
|
|
#include <meshing.hpp>
|
|
#include "occ_utils.hpp"
|
|
#include "occmeshsurf.hpp"
|
|
|
|
#include <Quantity_ColorRGBA.hxx>
|
|
#include <STEPCAFControl_Reader.hxx>
|
|
#include <StepBasic_MeasureValueMember.hxx>
|
|
#include <StepRepr_CompoundRepresentationItem.hxx>
|
|
#include <StepRepr_IntegerRepresentationItem.hxx>
|
|
#include <StepRepr_ValueRepresentationItem.hxx>
|
|
#include <TCollection_HAsciiString.hxx>
|
|
#include <TDocStd_Document.hxx>
|
|
#include <TopoDS.hxx>
|
|
#include <TopoDS_Shape.hxx>
|
|
#include <Transfer_FinderProcess.hxx>
|
|
|
|
#if OCC_VERSION_MAJOR>=7 && OCC_VERSION_MINOR>=4
|
|
#define OCC_HAVE_HISTORY
|
|
#endif
|
|
|
|
namespace std
|
|
{
|
|
template<>
|
|
struct less<TopoDS_Shape>
|
|
{
|
|
bool operator() (const TopoDS_Shape& s1, const TopoDS_Shape& s2) const
|
|
{
|
|
return s1.HashCode(std::numeric_limits<Standard_Integer>::max()) <
|
|
s2.HashCode(std::numeric_limits<Standard_Integer>::max());
|
|
}
|
|
};
|
|
}
|
|
|
|
|
|
namespace netgen
|
|
{
|
|
|
|
// extern DLL_HEADER MeshingParameters mparam;
|
|
|
|
#define PROJECTION_TOLERANCE 1e-10
|
|
|
|
#define ENTITYISVISIBLE 1
|
|
#define ENTITYISHIGHLIGHTED 2
|
|
#define ENTITYISDRAWABLE 4
|
|
|
|
#define OCCGEOMETRYVISUALIZATIONNOCHANGE 0
|
|
#define OCCGEOMETRYVISUALIZATIONFULLCHANGE 1 // Compute transformation matrices and redraw
|
|
#define OCCGEOMETRYVISUALIZATIONHALFCHANGE 2 // Redraw
|
|
|
|
bool IsMappedShape(const Transformation<3> & trafo, const TopoDS_Shape & me, const TopoDS_Shape & you);
|
|
|
|
class EntityVisualizationCode
|
|
{
|
|
int code;
|
|
|
|
public:
|
|
|
|
EntityVisualizationCode()
|
|
{ code = ENTITYISVISIBLE + !ENTITYISHIGHLIGHTED + ENTITYISDRAWABLE;}
|
|
|
|
int IsVisible ()
|
|
{ return code & ENTITYISVISIBLE;}
|
|
|
|
int IsHighlighted ()
|
|
{ return code & ENTITYISHIGHLIGHTED;}
|
|
|
|
int IsDrawable ()
|
|
{ return code & ENTITYISDRAWABLE;}
|
|
|
|
void Show ()
|
|
{ code |= ENTITYISVISIBLE;}
|
|
|
|
void Hide ()
|
|
{ code &= ~ENTITYISVISIBLE;}
|
|
|
|
void Highlight ()
|
|
{ code |= ENTITYISHIGHLIGHTED;}
|
|
|
|
void Lowlight ()
|
|
{ code &= ~ENTITYISHIGHLIGHTED;}
|
|
|
|
void SetDrawable ()
|
|
{ code |= ENTITYISDRAWABLE;}
|
|
|
|
void SetNotDrawable ()
|
|
{ code &= ~ENTITYISDRAWABLE;}
|
|
};
|
|
|
|
|
|
|
|
class Line
|
|
{
|
|
public:
|
|
Point<3> p0, p1;
|
|
int layer = 1;
|
|
double Dist (Line l);
|
|
double Length () { return (p1-p0).Length(); }
|
|
};
|
|
|
|
|
|
|
|
inline double Det3 (double a00, double a01, double a02,
|
|
double a10, double a11, double a12,
|
|
double a20, double a21, double a22)
|
|
{
|
|
return a00*a11*a22 + a01*a12*a20 + a10*a21*a02 - a20*a11*a02 - a10*a01*a22 - a21*a12*a00;
|
|
}
|
|
|
|
class DLL_HEADER OCCParameters
|
|
{
|
|
public:
|
|
|
|
/// Factor for meshing close edges, moved to meshingparameters
|
|
// double resthcloseedgefac = 2.;
|
|
|
|
/// Enable / Disable detection of close edges
|
|
// int resthcloseedgeenable = true;
|
|
|
|
/// Minimum edge length to be used for dividing edges to mesh points
|
|
// double resthminedgelen = 0.001;
|
|
double resthminedgelen = 1e-4;
|
|
|
|
/// Enable / Disable use of the minimum edge length (by default use 1e-4)
|
|
int resthminedgelenenable = false;
|
|
|
|
/*!
|
|
Dump all the OpenCascade specific meshing parameters
|
|
to console
|
|
*/
|
|
void Print (ostream & ost) const;
|
|
};
|
|
|
|
|
|
class DLL_HEADER OCCGeometry : public NetgenGeometry
|
|
{
|
|
Point<3> center;
|
|
OCCParameters occparam;
|
|
public:
|
|
static std::map<TopoDS_Shape, ShapeProperties> global_shape_properties;
|
|
static std::map<TopoDS_Shape, std::vector<OCCIdentification>> identifications;
|
|
|
|
TopoDS_Shape shape;
|
|
TopTools_IndexedMapOfShape fmap, emap, vmap, somap, shmap, wmap; // legacy maps
|
|
NgArray<bool> fsingular, esingular, vsingular;
|
|
Box<3> boundingbox;
|
|
|
|
std::map<TopoDS_Shape, int> solid_map, face_map, edge_map, vertex_map;
|
|
|
|
mutable int changed;
|
|
mutable NgArray<int> facemeshstatus;
|
|
|
|
// Philippose - 15/01/2009
|
|
// Maximum mesh size for a given face
|
|
// (Used to explicitly define mesh size limits on individual faces)
|
|
NgArray<double> face_maxh;
|
|
|
|
// Philippose - 14/01/2010
|
|
// Boolean array to detect whether a face has been explicitly modified
|
|
// by the user or not
|
|
NgArray<bool> face_maxh_modified;
|
|
|
|
// Philippose - 15/01/2009
|
|
// Indicates which faces have been selected by the user in geometry mode
|
|
// (Currently handles only selection of one face at a time, but an array would
|
|
// help to extend this to multiple faces)
|
|
NgArray<bool> face_sel_status;
|
|
|
|
NgArray<EntityVisualizationCode> fvispar, evispar, vvispar;
|
|
|
|
double tolerance;
|
|
bool fixsmalledges;
|
|
bool fixspotstripfaces;
|
|
bool sewfaces;
|
|
bool makesolids;
|
|
bool splitpartitions;
|
|
|
|
OCCGeometry()
|
|
{
|
|
somap.Clear();
|
|
shmap.Clear();
|
|
fmap.Clear();
|
|
wmap.Clear();
|
|
emap.Clear();
|
|
vmap.Clear();
|
|
}
|
|
|
|
OCCGeometry(const TopoDS_Shape& _shape, int aoccdim = 3, bool copy = false);
|
|
|
|
Mesh::GEOM_TYPE GetGeomType() const override
|
|
{ return Mesh::GEOM_OCC; }
|
|
|
|
void SetOCCParameters(const OCCParameters& par)
|
|
{ occparam = par; }
|
|
|
|
void Analyse(Mesh& mesh,
|
|
const MeshingParameters& mparam) const override;
|
|
bool MeshFace(Mesh& mesh, const MeshingParameters& mparam,
|
|
int nr, FlatArray<int, PointIndex> glob2loc) const override;
|
|
// void OptimizeSurface(Mesh& mesh, const MeshingParameters& mparam) const override {}
|
|
|
|
void Save (const filesystem::path & filename) const override;
|
|
void SaveToMeshFile (ostream & /* ost */) const override;
|
|
|
|
void DoArchive(Archive& ar) override;
|
|
|
|
void BuildFMap();
|
|
|
|
auto GetShape() const { return shape; }
|
|
Box<3> GetBoundingBox() const
|
|
{ return boundingbox; }
|
|
|
|
int NrSolids() const
|
|
{ return somap.Extent(); }
|
|
|
|
// Philippose - 17/01/2009
|
|
// Total number of faces in the geometry
|
|
int NrFaces() const
|
|
{ return fmap.Extent(); }
|
|
|
|
void SetCenter()
|
|
{ center = boundingbox.Center(); }
|
|
|
|
Point<3> Center() const
|
|
{ return center; }
|
|
|
|
OCCSurface GetSurface (int surfi)
|
|
{
|
|
cout << "OCCGeometry::GetSurface using PLANESPACE" << endl;
|
|
return OCCSurface (TopoDS::Face(fmap(surfi)), PLANESPACE);
|
|
}
|
|
|
|
void CalcBoundingBox ();
|
|
void BuildVisualizationMesh (double deflection);
|
|
|
|
void RecursiveTopologyTree (const TopoDS_Shape & sh,
|
|
stringstream & str,
|
|
TopAbs_ShapeEnum l,
|
|
bool free,
|
|
const char * lname);
|
|
|
|
void GetTopologyTree (stringstream & str);
|
|
|
|
void PrintNrShapes ();
|
|
|
|
void CheckIrregularEntities (stringstream & str);
|
|
|
|
void SewFaces();
|
|
|
|
void MakeSolid();
|
|
|
|
Array<GeometryVertex*> GetFaceVertices(const GeometryFace& face) const override;
|
|
|
|
void HealGeometry();
|
|
void GlueGeometry();
|
|
|
|
// Philippose - 15/01/2009
|
|
// Sets the maximum mesh size for a given face
|
|
// (Note: Local mesh size limited by the global max mesh size)
|
|
void SetFaceMaxH(int facenr, double faceh, const MeshingParameters & mparam)
|
|
{
|
|
if((facenr> 0) && (facenr <= fmap.Extent()))
|
|
{
|
|
face_maxh[facenr-1] = min(mparam.maxh,faceh);
|
|
|
|
// Philippose - 14/01/2010
|
|
// If the face maxh is greater than or equal to the
|
|
// current global maximum, then identify the face as
|
|
// not explicitly controlled by the user any more
|
|
if(faceh >= mparam.maxh)
|
|
{
|
|
face_maxh_modified[facenr-1] = 0;
|
|
}
|
|
else
|
|
{
|
|
face_maxh_modified[facenr-1] = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SetFaceMaxH(size_t facenr, double faceh)
|
|
{
|
|
if(facenr >= fmap.Extent())
|
|
throw RangeException("OCCGeometry faces", facenr, 0, fmap.Extent());
|
|
face_maxh[facenr] = faceh;
|
|
face_maxh_modified[facenr] = true;
|
|
}
|
|
|
|
// Philippose - 15/01/2009
|
|
// Returns the local mesh size of a given face
|
|
double GetFaceMaxH(int facenr)
|
|
{
|
|
if((facenr> 0) && (facenr <= fmap.Extent()))
|
|
{
|
|
return face_maxh[facenr-1];
|
|
}
|
|
else
|
|
{
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
// Philippose - 14/01/2010
|
|
// Returns the flag whether the given face
|
|
// has a mesh size controlled by the user or not
|
|
bool GetFaceMaxhModified(int facenr)
|
|
{
|
|
return face_maxh_modified[facenr-1];
|
|
}
|
|
|
|
// Philippose - 17/01/2009
|
|
// Returns the index of the currently selected face
|
|
int SelectedFace()
|
|
{
|
|
for(int i = 1; i <= fmap.Extent(); i++)
|
|
{
|
|
if(face_sel_status[i-1])
|
|
{
|
|
return i;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// Philippose - 17/01/2009
|
|
// Sets the currently selected face
|
|
void SetSelectedFace(int facenr)
|
|
{
|
|
face_sel_status = 0;
|
|
|
|
if((facenr >= 1) && (facenr <= fmap.Extent()))
|
|
{
|
|
face_sel_status[facenr-1] = 1;
|
|
}
|
|
}
|
|
|
|
void LowLightAll()
|
|
{
|
|
for (int i = 1; i <= fmap.Extent(); i++)
|
|
fvispar[i-1].Lowlight();
|
|
for (int i = 1; i <= emap.Extent(); i++)
|
|
evispar[i-1].Lowlight();
|
|
for (int i = 1; i <= vmap.Extent(); i++)
|
|
vvispar[i-1].Lowlight();
|
|
}
|
|
|
|
void GetUnmeshedFaceInfo (stringstream & str);
|
|
void GetNotDrawableFaces (stringstream & str);
|
|
bool ErrorInSurfaceMeshing ();
|
|
|
|
// void WriteOCC_STL(char * filename);
|
|
|
|
private:
|
|
//bool FastProject (int surfi, Point<3> & ap, double& u, double& v) const;
|
|
};
|
|
|
|
void Identify(const ListOfShapes & me, const ListOfShapes & you, string name, Identifications::ID_TYPE type, Transformation<3> trafo);
|
|
void Identify(const TopoDS_Shape & me, const TopoDS_Shape & you, string name, Identifications::ID_TYPE type, std::optional<std::variant<gp_Trsf, gp_GTrsf>> opt_trafo);
|
|
|
|
|
|
void PrintContents (OCCGeometry * geom);
|
|
|
|
DLL_HEADER OCCGeometry * LoadOCC_IGES (const filesystem::path & filename);
|
|
DLL_HEADER OCCGeometry * LoadOCC_STEP (const filesystem::path & filename);
|
|
DLL_HEADER OCCGeometry * LoadOCC_BREP (const filesystem::path & filename);
|
|
|
|
// Philippose - 31.09.2009
|
|
// External access to the mesh generation functions within the OCC
|
|
// subsystem (Not sure if this is the best way to implement this....!!)
|
|
DLL_HEADER extern void OCCSetLocalMeshSize(const OCCGeometry & geom, Mesh & mesh, const MeshingParameters & mparam,
|
|
const OCCParameters& occparam);
|
|
|
|
DLL_HEADER extern bool OCCMeshFace (const OCCGeometry & geom, Mesh & mesh, FlatArray<int, PointIndex> glob2loc,
|
|
const MeshingParameters & mparam, int nr, int projecttype, bool delete_on_failure);
|
|
|
|
|
|
template <class TBuilder>
|
|
void PropagateIdentifications (TBuilder & builder, TopoDS_Shape shape, std::optional<Transformation<3>> trafo = nullopt)
|
|
{
|
|
std::map<TopoDS_Shape, std::set<TopoDS_Shape>> mod_map;
|
|
std::map<TopoDS_Shape, bool> shape_handled;
|
|
Transformation<3> trafo_inv;
|
|
if(trafo)
|
|
trafo_inv = trafo->CalcInverse();
|
|
|
|
for (auto typ : { TopAbs_SOLID, TopAbs_FACE, TopAbs_EDGE, TopAbs_VERTEX })
|
|
for (TopExp_Explorer e(shape, typ); e.More(); e.Next())
|
|
{
|
|
auto s = e.Current();
|
|
mod_map[s].insert(s);
|
|
shape_handled[s] = false;
|
|
}
|
|
|
|
for (auto typ : { TopAbs_SOLID, TopAbs_FACE, TopAbs_EDGE, TopAbs_VERTEX })
|
|
for (TopExp_Explorer e(shape, typ); e.More(); e.Next())
|
|
{
|
|
auto s = e.Current();
|
|
for (auto mods : builder.Modified(s))
|
|
mod_map[s].insert(mods);
|
|
}
|
|
|
|
for (auto typ : { TopAbs_SOLID, TopAbs_FACE, TopAbs_EDGE, TopAbs_VERTEX })
|
|
for (TopExp_Explorer e(shape, typ); e.More(); e.Next())
|
|
{
|
|
auto s = e.Current();
|
|
|
|
if(shape_handled[s])
|
|
continue;
|
|
shape_handled[s] = true;
|
|
|
|
if(OCCGeometry::identifications.count(s)==0)
|
|
continue;
|
|
|
|
auto shape_mapped = mod_map[s];
|
|
|
|
for(auto ident : OCCGeometry::identifications[s])
|
|
{
|
|
// nothing happened
|
|
if(mod_map[ident.to].size()==1 && mod_map[ident.from].size() ==1)
|
|
continue;
|
|
|
|
auto from = ident.from;
|
|
auto to = ident.to;
|
|
|
|
for(auto from_mapped : mod_map[from])
|
|
for(auto to_mapped : mod_map[to])
|
|
{
|
|
if(from==from_mapped && to==to_mapped)
|
|
continue;
|
|
|
|
Transformation<3> trafo_mapped = ident.trafo;
|
|
if(trafo)
|
|
{
|
|
Transformation<3> trafo_temp;
|
|
trafo_temp.Combine(ident.trafo, trafo_inv);
|
|
trafo_mapped.Combine(*trafo, trafo_temp);
|
|
}
|
|
|
|
if(!IsMappedShape(trafo_mapped, from_mapped, to_mapped))
|
|
continue;
|
|
|
|
OCCIdentification id_new = ident;
|
|
id_new.to = to_mapped;
|
|
id_new.from = from_mapped;
|
|
id_new.trafo = trafo_mapped;
|
|
auto id_owner = from.IsSame(s) ? from_mapped : to_mapped;
|
|
OCCGeometry::identifications[id_owner].push_back(id_new);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class TBuilder>
|
|
void PropagateProperties (TBuilder & builder, TopoDS_Shape shape, std::optional<Transformation<3>> trafo = nullopt)
|
|
{
|
|
bool have_identifications = false;
|
|
|
|
for (auto typ : { TopAbs_SOLID, TopAbs_FACE, TopAbs_EDGE })
|
|
for (TopExp_Explorer e(shape, typ); e.More(); e.Next())
|
|
{
|
|
auto s = e.Current();
|
|
auto & prop = OCCGeometry::global_shape_properties[s];
|
|
for (auto mods : builder.Modified(s))
|
|
OCCGeometry::global_shape_properties[mods].Merge(prop);
|
|
have_identifications |= OCCGeometry::identifications.count(s) > 0;
|
|
}
|
|
if(have_identifications)
|
|
PropagateIdentifications(builder, shape, trafo);
|
|
}
|
|
|
|
namespace step_utils
|
|
{
|
|
inline Handle(TCollection_HAsciiString) MakeName (string s)
|
|
{
|
|
return new TCollection_HAsciiString(s.c_str());
|
|
};
|
|
|
|
inline Handle(StepRepr_RepresentationItem) MakeInt (int n, string name = "")
|
|
{
|
|
Handle(StepRepr_IntegerRepresentationItem) int_obj = new StepRepr_IntegerRepresentationItem;
|
|
int_obj->Init(MakeName(name), n);
|
|
return int_obj;
|
|
}
|
|
|
|
inline int ReadInt (Handle(StepRepr_RepresentationItem) item)
|
|
{
|
|
return Handle(StepRepr_IntegerRepresentationItem)::DownCast(item)->Value();
|
|
}
|
|
|
|
inline Handle(StepRepr_RepresentationItem) MakeReal (double val, string name = "")
|
|
{
|
|
Handle(StepBasic_MeasureValueMember) value_member = new StepBasic_MeasureValueMember;
|
|
value_member->SetReal(val);
|
|
Handle(StepRepr_ValueRepresentationItem) value_repr = new StepRepr_ValueRepresentationItem;
|
|
value_repr->Init(MakeName(name), value_member);
|
|
return value_repr;
|
|
}
|
|
|
|
inline double ReadReal (Handle(StepRepr_RepresentationItem) item)
|
|
{
|
|
return Handle(StepRepr_ValueRepresentationItem)::DownCast(item)
|
|
->ValueComponentMember()->Real();
|
|
}
|
|
|
|
|
|
inline Handle(StepRepr_RepresentationItem) MakeCompound( FlatArray<Handle(StepRepr_RepresentationItem)> items, string name = "" )
|
|
{
|
|
Handle(StepRepr_HArray1OfRepresentationItem) array_repr = new StepRepr_HArray1OfRepresentationItem(1,items.Size());
|
|
|
|
for(auto i : Range(items))
|
|
array_repr->SetValue(i+1, items[i]);
|
|
|
|
Handle(StepRepr_CompoundRepresentationItem) comp = new StepRepr_CompoundRepresentationItem;
|
|
comp->Init( MakeName(name), array_repr );
|
|
return comp;
|
|
}
|
|
|
|
void WriteIdentifications(const Handle(Interface_InterfaceModel) model, const TopoDS_Shape & shape, const Handle(Transfer_FinderProcess) finder);
|
|
void ReadIdentifications(Handle(StepRepr_RepresentationItem) item, Handle(Transfer_TransientProcess) transProc);
|
|
|
|
inline Quantity_ColorRGBA MakeColor(const Vec<4> & c)
|
|
{
|
|
return Quantity_ColorRGBA (c[0], c[1], c[2], c[3]);
|
|
}
|
|
|
|
inline Vec<4> ReadColor (const Quantity_ColorRGBA & c)
|
|
{
|
|
auto rgb = c.GetRGB();
|
|
return {rgb.Red(), rgb.Green(), rgb.Blue(), c.Alpha()};
|
|
}
|
|
|
|
|
|
void LoadProperties(const TopoDS_Shape & shape,
|
|
const STEPCAFControl_Reader & reader,
|
|
const Handle(TDocStd_Document) step_doc);
|
|
void WriteProperties(const Handle(Interface_InterfaceModel) model, const Handle(Transfer_FinderProcess) finder, const TopoDS_Shape & shape);
|
|
|
|
void WriteSTEP(const TopoDS_Shape & shape, const filesystem::path & filename);
|
|
|
|
inline void WriteSTEP(const OCCGeometry & geo, const filesystem::path & filename)
|
|
{
|
|
WriteSTEP(geo.GetShape(), filename);
|
|
}
|
|
|
|
// deep copy, also ensures consistent shape ordering (face numbers etc.)
|
|
TopoDS_Shape WriteAndRead(const TopoDS_Shape shape);
|
|
} // namespace step_utils
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|