mirror of
https://github.com/NGSolve/netgen.git
synced 2024-11-12 00:59:16 +05:00
356 lines
12 KiB
C++
356 lines
12 KiB
C++
#ifndef FILE_BASEGEOM
|
|
#define FILE_BASEGEOM
|
|
|
|
/**************************************************************************/
|
|
/* File: basegeom.hpp */
|
|
/* Author: Joachim Schoeberl */
|
|
/* Date: 23. Aug. 09 */
|
|
/**************************************************************************/
|
|
|
|
struct Tcl_Interp;
|
|
|
|
namespace netgen
|
|
{
|
|
struct ShapeProperties
|
|
{
|
|
optional<string> name;
|
|
optional<Vec<4>> col;
|
|
double maxh = 1e99;
|
|
double hpref = 0; // number of hp refinement levels (will be multiplied by factor later)
|
|
int layer = 1;
|
|
optional<bool> quad_dominated;
|
|
void Merge(const ShapeProperties & prop2)
|
|
{
|
|
if (!name && prop2.name) name = prop2.name;
|
|
if (!col && prop2.col) col = prop2.col;
|
|
maxh = min2(maxh, prop2.maxh);
|
|
hpref = max2(hpref, prop2.hpref);
|
|
if(!quad_dominated.has_value()) quad_dominated = prop2.quad_dominated;
|
|
layer = max(layer, prop2.layer);
|
|
}
|
|
|
|
string GetName() const { return name ? *name : "default"; }
|
|
Vec<4> GetColor() { return col ? *col : Vec<4>{0., 1., 0., 1.}; }
|
|
|
|
void DoArchive(Archive& ar)
|
|
{
|
|
ar & name & col & maxh & hpref & layer;
|
|
}
|
|
};
|
|
|
|
class GeometryShape;
|
|
|
|
struct ShapeIdentification
|
|
{
|
|
GeometryShape * from;
|
|
GeometryShape * to;
|
|
Transformation<3> trafo;
|
|
Identifications::ID_TYPE type;
|
|
string name = "";
|
|
};
|
|
|
|
class DLL_HEADER GeometryShape
|
|
{
|
|
public:
|
|
int nr = -1;
|
|
int layer = 1;
|
|
ShapeProperties properties;
|
|
Array<ShapeIdentification> identifications;
|
|
GeometryShape * primary;
|
|
Transformation<3> primary_to_me;
|
|
|
|
virtual ~GeometryShape() {}
|
|
virtual size_t GetHash() const = 0;
|
|
virtual bool IsMappedShape( const GeometryShape & other, const Transformation<3> & trafo, double tolerance ) const;
|
|
};
|
|
|
|
|
|
class DLL_HEADER GeometryVertex : public GeometryShape
|
|
{
|
|
public:
|
|
virtual Point<3> GetPoint() const = 0;
|
|
virtual bool IsMappedShape( const GeometryShape & other, const Transformation<3> & trafo, double tolerance ) const override;
|
|
};
|
|
|
|
class DLL_HEADER GeometryEdge : public GeometryShape
|
|
{
|
|
protected:
|
|
GeometryVertex *start, *end;
|
|
public:
|
|
int domin=-1, domout=-1;
|
|
|
|
GeometryEdge( GeometryVertex &start_, GeometryVertex &end_ )
|
|
: start(&start_), end(&end_)
|
|
{}
|
|
|
|
virtual const GeometryVertex& GetStartVertex() const { return *start; }
|
|
virtual const GeometryVertex& GetEndVertex() const { return *end; }
|
|
virtual GeometryVertex& GetStartVertex() { return *start; }
|
|
virtual GeometryVertex& GetEndVertex() { return *end; }
|
|
virtual double GetLength() const = 0;
|
|
virtual Point<3> GetCenter() const = 0;
|
|
virtual Point<3> GetPoint(double t) const = 0;
|
|
// Calculate parameter step respecting edges sag value
|
|
virtual double CalcStep(double t, double sag) const = 0;
|
|
virtual void ProjectPoint(Point<3>& p, EdgePointGeomInfo* gi) const = 0;
|
|
virtual void PointBetween(const Point<3>& p1,
|
|
const Point<3>& p2,
|
|
double secpoint,
|
|
const EdgePointGeomInfo& gi1,
|
|
const EdgePointGeomInfo& gi2,
|
|
Point<3>& newp,
|
|
EdgePointGeomInfo& newgi) const
|
|
{
|
|
newp = p1 + secpoint * (p2-p1);
|
|
newgi = gi1;
|
|
ProjectPoint(newp, &newgi);
|
|
}
|
|
virtual Vec<3> GetTangent(double t) const = 0;
|
|
virtual bool IsMappedShape( const GeometryShape & other, const Transformation<3> & trafo, double tolerance ) const override;
|
|
};
|
|
|
|
class DLL_HEADER GeometryFace : public GeometryShape
|
|
{
|
|
public:
|
|
Array<GeometryEdge*> edges;
|
|
int domin=-1, domout=-1;
|
|
|
|
virtual Point<3> GetCenter() const = 0;
|
|
virtual size_t GetNBoundaries() const = 0;
|
|
virtual Array<Segment> GetBoundary(const Mesh& mesh) const = 0;
|
|
|
|
virtual PointGeomInfo Project(Point<3>& p) const = 0;
|
|
// Project point using geo info. Fast if point is close to
|
|
// parametrization in geo info.
|
|
virtual bool ProjectPointGI(Point<3>& p, PointGeomInfo& gi) const =0;
|
|
virtual bool CalcPointGeomInfo(const Point<3>& p, PointGeomInfo& gi) const
|
|
{
|
|
auto pnew = p;
|
|
gi = Project(pnew);
|
|
return (p-pnew).Length() < 1e-10 * GetBoundingBox().Diam() ;
|
|
}
|
|
virtual Point<3> GetPoint(const PointGeomInfo& gi) const = 0;
|
|
virtual void CalcEdgePointGI(const GeometryEdge& edge,
|
|
double t,
|
|
EdgePointGeomInfo& egi) const = 0;
|
|
virtual Box<3> GetBoundingBox() const = 0;
|
|
|
|
// Get curvature in point from local coordinates in PointGeomInfo
|
|
virtual double GetCurvature(const PointGeomInfo& gi) const = 0;
|
|
|
|
virtual void RestrictH(Mesh& mesh, const MeshingParameters& mparam) const = 0;
|
|
virtual Vec<3> GetNormal(const Point<3>& p, const PointGeomInfo* gi = nullptr) const = 0;
|
|
|
|
virtual void PointBetween(const Point<3>& p1,
|
|
const Point<3>& p2,
|
|
double secpoint,
|
|
const PointGeomInfo& gi1,
|
|
const PointGeomInfo& gi2,
|
|
Point<3>& newp,
|
|
PointGeomInfo& newgi) const
|
|
{
|
|
newp = p1 + secpoint * (p2-p1);
|
|
newgi.trignum = gi1.trignum;
|
|
/*
|
|
newgi.u = 0.5 * (gi1.u + gi1.u);
|
|
newgi.v = 0.5 * (gi1.v + gi2.v);
|
|
*/
|
|
newgi.u = gi1.u + secpoint*(gi2.u - gi1.u);
|
|
newgi.v = gi1.v + secpoint*(gi2.v - gi1.v);
|
|
if(!ProjectPointGI(newp, newgi))
|
|
newgi = Project(newp);
|
|
}
|
|
|
|
virtual bool IsMappedShape( const GeometryShape & other, const Transformation<3> & trafo, double tolerance ) const override;
|
|
virtual bool IsConnectingCloseSurfaces() const;
|
|
|
|
protected:
|
|
void RestrictHTrig(Mesh& mesh,
|
|
const PointGeomInfo& gi0,
|
|
const PointGeomInfo& gi1,
|
|
const PointGeomInfo& gi2,
|
|
const MeshingParameters& mparam,
|
|
int depth = 0, double h = 0.) const;
|
|
};
|
|
|
|
class DLL_HEADER GeometrySolid : public GeometryShape
|
|
{ };
|
|
|
|
class DLL_HEADER NetgenGeometry
|
|
{
|
|
unique_ptr<Refinement> ref;
|
|
protected:
|
|
Array<unique_ptr<GeometryVertex>> vertices;
|
|
Array<unique_ptr<GeometryEdge>> edges;
|
|
Array<unique_ptr<GeometryFace>> faces;
|
|
Array<unique_ptr<GeometrySolid>> solids;
|
|
Array<std::pair<Point<3>, double>> restricted_h;
|
|
Box<3> bounding_box;
|
|
int dimension = 3;
|
|
|
|
public:
|
|
|
|
NetgenGeometry()
|
|
{
|
|
ref = make_unique<Refinement>(*this);
|
|
}
|
|
virtual ~NetgenGeometry () { ; }
|
|
|
|
size_t GetNVertices() const { return vertices.Size(); }
|
|
size_t GetNEdges() const { return edges.Size(); }
|
|
size_t GetNFaces() const { return faces.Size(); }
|
|
|
|
const GeometryFace & GetFace(int i) const { return *faces[i]; }
|
|
const GeometryEdge & GetEdge(int i) const { return *edges[i]; }
|
|
const GeometryVertex & GetVertex(int i) const { return *vertices[i]; }
|
|
|
|
virtual Array<const GeometryVertex*> GetFaceVertices(const GeometryFace& face) const { return Array<const GeometryVertex*>{}; }
|
|
|
|
void Clear();
|
|
|
|
virtual int GenerateMesh (shared_ptr<Mesh> & mesh, MeshingParameters & mparam);
|
|
|
|
void RestrictH(const Point<3>& pnt, double maxh)
|
|
{
|
|
restricted_h.Append({pnt, maxh});
|
|
}
|
|
|
|
virtual const Refinement & GetRefinement () const
|
|
{
|
|
return *ref;
|
|
}
|
|
|
|
virtual void DoArchive(Archive&)
|
|
{ throw NgException("DoArchive not implemented for " + Demangle(typeid(*this).name())); }
|
|
|
|
virtual Mesh::GEOM_TYPE GetGeomType() const { return Mesh::NO_GEOM; }
|
|
virtual void ProcessIdentifications();
|
|
virtual void Analyse(Mesh& mesh,
|
|
const MeshingParameters& mparam) const;
|
|
virtual void FindEdges(Mesh& mesh, const MeshingParameters& mparam) const;
|
|
virtual void MeshSurface(Mesh& mesh, const MeshingParameters& mparam) const;
|
|
virtual bool MeshFace(Mesh& mesh, const MeshingParameters& mparam,
|
|
int nr, FlatArray<int, PointIndex> glob2loc) const;
|
|
virtual void MapSurfaceMesh( Mesh & mesh, const GeometryFace & dst ) const;
|
|
virtual void OptimizeSurface(Mesh& mesh, const MeshingParameters& mparam) const;
|
|
|
|
virtual void FinalizeMesh(Mesh& mesh) const;
|
|
|
|
virtual PointGeomInfo ProjectPoint (int surfind, Point<3> & p) const
|
|
{
|
|
if(surfind <= faces.Size() && surfind > 0)
|
|
return faces[surfind-1]->Project(p);
|
|
return PointGeomInfo();
|
|
}
|
|
|
|
virtual void ProjectPointEdge (int surfind, int surfind2, Point<3> & p, EdgePointGeomInfo* gi = nullptr) const
|
|
{
|
|
if(gi && gi->edgenr < edges.Size())
|
|
edges[gi->edgenr]->ProjectPoint(p, gi);
|
|
}
|
|
|
|
virtual bool CalcPointGeomInfo(int surfind, PointGeomInfo& gi, const Point<3> & p3) const
|
|
{
|
|
return faces[surfind-1]->CalcPointGeomInfo(p3, gi);
|
|
}
|
|
virtual bool ProjectPointGI (int surfind, Point<3> & p, PointGeomInfo & gi) const
|
|
{
|
|
if(surfind > 0 && surfind <= faces.Size())
|
|
return faces[surfind-1]->ProjectPointGI(p, gi);
|
|
return false;
|
|
}
|
|
|
|
virtual Vec<3> GetNormal(int surfind, const Point<3> & p, const PointGeomInfo* gi = nullptr) const
|
|
{
|
|
if(surfind > 0 && surfind <= faces.Size())
|
|
return faces[surfind-1]->GetNormal(p, gi);
|
|
else
|
|
return {0., 0., 0.};
|
|
}
|
|
|
|
virtual void PointBetween (const Point<3> & p1,
|
|
const Point<3> & p2, double secpoint,
|
|
int surfi,
|
|
const PointGeomInfo & gi1,
|
|
const PointGeomInfo & gi2,
|
|
Point<3> & newp,
|
|
PointGeomInfo & newgi) const
|
|
{
|
|
if(faces.Size() >= surfi && surfi > 0)
|
|
{
|
|
faces[surfi-1]->PointBetween(p1, p2, secpoint, gi1, gi2, newp, newgi);
|
|
return;
|
|
}
|
|
newp = p1 + secpoint * (p2-p1);
|
|
}
|
|
|
|
virtual void PointBetweenEdge(const Point<3> & p1,
|
|
const Point<3> & p2, double secpoint,
|
|
int surfi1, int surfi2,
|
|
const EdgePointGeomInfo & ap1,
|
|
const EdgePointGeomInfo & ap2,
|
|
Point<3> & newp,
|
|
EdgePointGeomInfo & newgi) const
|
|
{
|
|
if(ap1.edgenr < edges.Size() && ap1.edgenr >= 0)
|
|
{
|
|
edges[ap1.edgenr]->PointBetween(p1, p2, secpoint,
|
|
ap1, ap2, newp, newgi);
|
|
return;
|
|
}
|
|
newp = p1+secpoint*(p2-p1);
|
|
}
|
|
|
|
virtual Vec<3> GetTangent(const Point<3> & p, int surfi1,
|
|
int surfi2,
|
|
const EdgePointGeomInfo & egi) const
|
|
{
|
|
throw Exception("Base geometry get tangent called");
|
|
}
|
|
|
|
virtual size_t GetEdgeIndex(const GeometryEdge& edge) const
|
|
{
|
|
for(auto i : Range(edges))
|
|
if(edge.GetHash() == edges[i]->GetHash())
|
|
return i;
|
|
throw Exception("Couldn't find edge index");
|
|
}
|
|
virtual void Save (const filesystem::path & filename) const;
|
|
virtual void SaveToMeshFile (ostream & /* ost */) const { ; }
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
class DLL_HEADER GeometryRegister
|
|
{
|
|
public:
|
|
virtual ~GeometryRegister();
|
|
virtual NetgenGeometry * Load (const filesystem::path & filename) const = 0;
|
|
virtual NetgenGeometry * LoadFromMeshFile (istream & /* ist */, string) const { return NULL; }
|
|
virtual class VisualScene * GetVisualScene (const NetgenGeometry * /* geom */) const
|
|
{ return NULL; }
|
|
virtual void SetParameters (Tcl_Interp * /* interp */) { ; }
|
|
};
|
|
|
|
class DLL_HEADER GeometryRegisterArray : public NgArray<GeometryRegister*>
|
|
{
|
|
public:
|
|
virtual ~GeometryRegisterArray()
|
|
{
|
|
for (int i = 0; i < Size(); i++)
|
|
delete (*this)[i];
|
|
}
|
|
|
|
virtual shared_ptr<NetgenGeometry> LoadFromMeshFile (istream & ist) const;
|
|
};
|
|
|
|
// extern DLL_HEADER NgArray<GeometryRegister*> geometryregister;
|
|
extern DLL_HEADER GeometryRegisterArray geometryregister;
|
|
}
|
|
|
|
|
|
|
|
#endif
|