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https://github.com/NGSolve/netgen.git
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* Corrected error in OCC part of nglib header - header now has no external dependencies
This commit is contained in:
Philippose Rajan
parent
4fc9c40286
commit
3551550857
120
nglib/nglib.cpp
120
nglib/nglib.cpp
@ -1,5 +1,5 @@
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/**************************************************************************/
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/* File: nglib.cc */
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/* File: nglib.cpp */
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/* Author: Joachim Schoeberl */
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/* Date: 7. May. 2000 */
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/**************************************************************************/
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@ -74,6 +74,9 @@ DLL_HEADER void Ng_Init ()
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testout = new ofstream ("test.out");
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}
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// Clean-up functions before ending usage of nglib
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DLL_HEADER void Ng_Exit ()
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{
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;
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@ -81,6 +84,7 @@ DLL_HEADER void Ng_Exit ()
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// Create a new netgen mesh object
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DLL_HEADER Ng_Mesh * Ng_NewMesh ()
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{
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Mesh * mesh = new Mesh;
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@ -88,19 +92,44 @@ DLL_HEADER Ng_Mesh * Ng_NewMesh ()
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return (Ng_Mesh*)(void*)mesh;
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}
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// Delete an existing netgen mesh object
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DLL_HEADER void Ng_DeleteMesh (Ng_Mesh * mesh)
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{
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delete (Mesh*)mesh;
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}
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// feeds points, surface elements and volume elements to the mesh
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// Save a netgen mesh in the native VOL format
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DLL_HEADER void Ng_SaveMesh(Ng_Mesh * mesh, const char* filename)
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{
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((Mesh*)mesh)->Save(filename);
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}
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// Load a netgen native VOL mesh from a given file
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DLL_HEADER Ng_Mesh * Ng_LoadMesh(const char* filename)
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{
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Mesh * mesh = new Mesh;
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mesh->Load(filename);
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return ( (Ng_Mesh*)mesh );
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}
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// Manually add a point to an existing mesh object
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DLL_HEADER void Ng_AddPoint (Ng_Mesh * mesh, double * x)
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{
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Mesh * m = (Mesh*)mesh;
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m->AddPoint (Point3d (x[0], x[1], x[2]));
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}
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// Manually add a surface element of a given type to an existing mesh object
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DLL_HEADER void Ng_AddSurfaceElement (Ng_Mesh * mesh, Ng_Surface_Element_Type et,
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int * pi)
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{
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@ -113,6 +142,9 @@ DLL_HEADER void Ng_AddSurfaceElement (Ng_Mesh * mesh, Ng_Surface_Element_Type et
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m->AddSurfaceElement (el);
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}
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// Manually add a volume element of a given type to an existing mesh object
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DLL_HEADER void Ng_AddVolumeElement (Ng_Mesh * mesh, Ng_Volume_Element_Type et,
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int * pi)
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{
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@ -126,24 +158,33 @@ DLL_HEADER void Ng_AddVolumeElement (Ng_Mesh * mesh, Ng_Volume_Element_Type et,
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m->AddVolumeElement (el);
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}
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// ask for number of points, surface and volume elements
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// Obtain the number of points in the mesh
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DLL_HEADER int Ng_GetNP (Ng_Mesh * mesh)
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{
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return ((Mesh*)mesh) -> GetNP();
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}
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// Obtain the number of surface elements in the mesh
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DLL_HEADER int Ng_GetNSE (Ng_Mesh * mesh)
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{
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return ((Mesh*)mesh) -> GetNSE();
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}
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// Obtain the number of volume elements in the mesh
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DLL_HEADER int Ng_GetNE (Ng_Mesh * mesh)
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{
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return ((Mesh*)mesh) -> GetNE();
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}
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// return point coordinates
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// Return point coordinates of a given point index in the mesh
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DLL_HEADER void Ng_GetPoint (Ng_Mesh * mesh, int num, double * x)
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{
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const Point3d & p = ((Mesh*)mesh)->Point(num);
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@ -152,7 +193,9 @@ DLL_HEADER void Ng_GetPoint (Ng_Mesh * mesh, int num, double * x)
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x[2] = p.Z();
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}
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// return surface and volume element in pi
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// Return the surface element at a given index "pi"
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DLL_HEADER Ng_Surface_Element_Type
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Ng_GetSurfaceElement (Ng_Mesh * mesh, int num, int * pi)
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{
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@ -171,6 +214,9 @@ Ng_GetSurfaceElement (Ng_Mesh * mesh, int num, int * pi)
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return et;
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}
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// Return the volume element at a given index "pi"
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DLL_HEADER Ng_Volume_Element_Type
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Ng_GetVolumeElement (Ng_Mesh * mesh, int num, int * pi)
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{
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@ -190,16 +236,25 @@ Ng_GetVolumeElement (Ng_Mesh * mesh, int num, int * pi)
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return et;
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}
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// Set a global limit on the maximum mesh size allowed
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DLL_HEADER void Ng_RestrictMeshSizeGlobal (Ng_Mesh * mesh, double h)
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{
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((Mesh*)mesh) -> SetGlobalH (h);
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}
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// Set a local limit on the maximum mesh size allowed around the given point
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DLL_HEADER void Ng_RestrictMeshSizePoint (Ng_Mesh * mesh, double * p, double h)
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{
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((Mesh*)mesh) -> RestrictLocalH (Point3d (p[0], p[1], p[2]), h);
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}
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// Set a local limit on the maximum mesh size allowed within a given box region
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DLL_HEADER void Ng_RestrictMeshSizeBox (Ng_Mesh * mesh, double * pmin, double * pmax, double h)
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{
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for (double x = pmin[0]; x < pmax[0]; x += h)
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@ -209,7 +264,8 @@ DLL_HEADER void Ng_RestrictMeshSizeBox (Ng_Mesh * mesh, double * pmin, double *
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}
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// generates volume mesh from surface mesh
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// Generates volume mesh from an existing surface mesh
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DLL_HEADER Ng_Result Ng_GenerateVolumeMesh (Ng_Mesh * mesh, Ng_Meshing_Parameters * mp)
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{
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Mesh * m = (Mesh*)mesh;
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@ -234,7 +290,7 @@ DLL_HEADER Ng_Result Ng_GenerateVolumeMesh (Ng_Mesh * mesh, Ng_Meshing_Parameter
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// 2D Meshing Functions:
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/* ------------------ 2D Meshing Functions ------------------------- */
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@ -355,28 +411,9 @@ DLL_HEADER void Ng_HP_Refinement (Ng_Geometry_2D * geom,
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Array<STLReadTriangle> readtrias; //only before initstlgeometry
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Array<Point<3> > readedges; //only before init stlgeometry
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DLL_HEADER void Ng_SaveMesh(Ng_Mesh * mesh, const char* filename)
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{
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((Mesh*)mesh)->Save(filename);
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}
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DLL_HEADER Ng_Mesh * Ng_LoadMesh(const char* filename)
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{
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Mesh * mesh = new Mesh;
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mesh->Load(filename);
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return ( (Ng_Mesh*)mesh );
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}
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// loads geometry from STL file
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DLL_HEADER Ng_STL_Geometry * Ng_STL_LoadGeometry (const char * filename, int binary)
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{
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@ -630,12 +667,14 @@ DLL_HEADER Ng_OCC_Geometry * Ng_OCC_Load_BREP (const char * filename)
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// Extract a
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DLL_HEADER Ng_Result Ng_OCC_GetFMap(Ng_OCC_Geometry * geom,
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TopTools_IndexedMapOfShape & FMap)
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Ng_OCC_TopTools_IndexedMapOfShape * FMap)
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{
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OCCGeometry* occgeom = (OCCGeometry*)geom;
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FMap = occgeom->fmap;
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TopTools_IndexedMapOfShape *occfmap = (TopTools_IndexedMapOfShape *)FMap;
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if(FMap.Extent())
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occfmap->Assign(occgeom->fmap);
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if(occfmap->Extent())
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{
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return NG_OK;
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}
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@ -657,14 +696,32 @@ DLL_HEADER Ng_Meshing_Parameters :: Ng_Meshing_Parameters()
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{
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maxh = 1000;
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fineness = 0.5;
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grading = 0.3;
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secondorder = 0;
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meshsize_filename = 0;
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quad_dominated = 0;
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optsteps_2d = 3;
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optsteps_3d = 3;
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}
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DLL_HEADER void Ng_Meshing_Parameters :: Reset_Meshing_Parameters()
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{
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maxh = 1000;
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fineness = 0.5;
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grading = 0.3;
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secondorder = 0;
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meshsize_filename = 0;
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quad_dominated = 0;
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optsteps_2d = 3;
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optsteps_3d = 3;
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}
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} // End of namespace nglib
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// compatibility functions:
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@ -704,7 +761,4 @@ void Render()
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;
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}
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}
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} // End of namespace netgen
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@ -2,7 +2,7 @@
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#define NGLIB
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/**************************************************************************/
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/* File: nglib.hh */
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/* File: nglib.h */
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/* Author: Joachim Schoeberl */
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/* Date: 7. May. 2000 */
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/**************************************************************************/
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@ -60,6 +60,7 @@ typedef void * Ng_STL_Geometry;
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#ifdef OCCGEOMETRY
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/// Data type for NETGEN OpenCascade geometry
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typedef void * Ng_OCC_Geometry;
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typedef void * Ng_OCC_TopTools_IndexedMapOfShape;
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#endif
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@ -93,9 +94,13 @@ class Ng_Meshing_Parameters
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public:
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double maxh; //!< Maximum global mesh size limit
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double fineness; //!< Mesh density: 0...1 (0 => coarse; 1 => fine)
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double grading; //!< Mesh grading: 0...1 (0 => uniform mesh; 1 => aggressive local grading)
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int secondorder; //!< Generate second-order surface and volume elements
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char * meshsize_filename; //!< Optional external mesh size file
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int quad_dominated; //!< Creates a Quad-dominated mesh
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int optsteps_3d; //!< Number of optimize steps to use for 3-D mesh optimization
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int optsteps_2d; //!< Number of optimize steps to use for 2-D mesh optimization
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/*!
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Default constructor for the Mesh Parameters class
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@ -104,11 +109,24 @@ public:
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class with the following default values
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- #maxh: 1000.0
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- #fineness: 0.5
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- #grading: 0.3
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- #secondorder: 0.0
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- #meshsize_filename: 0
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- #meshsize_filename: null
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- #quad_dominated: 0
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- #optsteps_2d: 3
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- #optsteps_3d: 3
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*/
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DLL_HEADER Ng_Meshing_Parameters();
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/*!
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Reset the meshing parameters to their defaults
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This member function resets all the meshing parameters
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of the object to the default values
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*/
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DLL_HEADER void Reset_Parameters();
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};
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@ -571,7 +589,7 @@ DLL_HEADER Ng_OCC_Geometry * Ng_OCC_Load_BREP (const char * filename);
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// Get the face map of an already loaded OCC geometry
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DLL_HEADER Ng_Result Ng_OCC_GetFMap(Ng_OCC_Geometry * geom,
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TopTools_IndexedMapOfShape & FMap);
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Ng_OCC_TopTools_IndexedMapOfShape * FMap);
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#endif
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