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Ngx_Mesh C++ interface

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This commit is contained in:
Joachim Schoeberl 2013-04-02 20:27:12 +00:00
parent 8d7debaf9b
commit a9552c8be6
1 changed files with 79 additions and 31 deletions
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110
libsrc/include/nginterface_v2.hpp
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@ -15,6 +15,12 @@
namespace netgen
{
class Ng_Element
{
@ -69,16 +75,6 @@ namespace netgen
Ng_Faces faces;
};
template <int DIM>
DLL_HEADER int Ng_GetNElements ();
template <int DIM>
DLL_HEADER Ng_Element Ng_GetElement (int nr);
class Ng_Point
{
@ -88,8 +84,6 @@ namespace netgen
{ return pt[i]; }
};
DLL_HEADER Ng_Point Ng_GetPoint (int nr);
@ -146,30 +140,84 @@ namespace netgen
template <int DIM>
DLL_HEADER Ng_Node<DIM> Ng_GetNode (int nr);
template <int DIM>
DLL_HEADER int Ng_GetNNodes ();
/// Curved Elements:
/// xi..... DIM_EL local coordinates
/// sxi ... step xi
/// x ..... DIM_SPACE global coordinates
/// dxdxi...DIM_SPACE x DIM_EL Jacobian matrix (row major storage)
template <int DIM_EL, int DIM_SPACE>
DLL_HEADER void Ng_MultiElementTransformation (int elnr, int npts,
const double * xi, size_t sxi,
double * x, size_t sx,
double * dxdxi, size_t sdxdxi);
template <int DIM>
DLL_HEADER int Ng_GetElementIndex (int nr);
class Ngx_Mesh
{
private:
class Mesh * mesh;
public:
Ngx_Mesh(class Mesh * amesh);
virtual ~Ngx_Mesh();
int GetDimension() const;
int GetNLevels() const;
int GetNElements (int dim) const;
int GetNNodes (int nt) const;
Ng_Point GetPoint (int nr) const;
template <int DIM>
DLL_HEADER Ng_Element GetElement (int nr) const;
template <int DIM>
DLL_HEADER int GetElementIndex (int nr) const;
/// Curved Elements:
/// elnr .. element nr
/// xi..... DIM_EL local coordinates
/// x ..... DIM_SPACE global coordinates
/// dxdxi...DIM_SPACE x DIM_EL Jacobian matrix (row major storage)
template <int DIM_EL, int DIM_SPACE>
DLL_HEADER void ElementTransformation (int elnr,
const double * xi,
double * x,
double * dxdxi) const;
/// Curved Elements:
/// elnr .. element nr
/// npts .. number of points
/// xi..... DIM_EL local coordinates
/// sxi ... step xi
/// x ..... DIM_SPACE global coordinates
/// dxdxi...DIM_SPACE x DIM_EL Jacobian matrix (row major storage)
template <int DIM_EL, int DIM_SPACE>
DLL_HEADER void MultiElementTransformation (int elnr, int npts,
const double * xi, size_t sxi,
double * x, size_t sx,
double * dxdxi, size_t sdxdxi) const;
template <int DIM>
DLL_HEADER Ng_Node<DIM> GetNode (int nr);
template <int DIM>
DLL_HEADER int GetNNodes ();
// Find element of point, returns local coordinates
template <int DIM>
DLL_HEADER int FindElementOfPoint
(double * p, double * lami,
bool build_searchtrees = false,
int * const indices = NULL, int numind = 0);
};
DLL_HEADER Ngx_Mesh * LoadMesh (const string & filename);
}
#endif