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44 lines
904 B
C++
44 lines
904 B
C++
class Ng_Element
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{
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public:
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NG_ELEMENT_TYPE type;
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int npoints;
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int nv;
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int * points;
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NG_ELEMENT_TYPE GetType() const
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{
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return type;
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}
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int GetNP() const
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{
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return npoints;
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}
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int operator[] (int i) const
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{
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return points[i]-1;
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}
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};
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template <int DIM>
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DLL_HEADER int Ng_GetNElements ();
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template <int DIM>
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DLL_HEADER Ng_Element Ng_GetElement (int nr);
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/// Curved Elements:
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/// xi..... DIM_EL local coordinates
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/// sxi ... step xi
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/// x ..... DIM_SPACE global coordinates
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/// dxdxi...DIM_SPACE x DIM_EL Jacobian matrix (row major storage)
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template <int DIM_EL, int DIM_SPACE>
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DLL_HEADER void Ng_MultiElementTransformation (int elnr, int npts,
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const double * xi, int sxi,
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double * x, int sx,
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double * dxdxi, int sdxdxi);
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