/usr/include/gmsh/nodalBasis.h is in libgmsh-dev 2.8.5+dfsg-1.1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | // Gmsh - Copyright (C) 1997-2014 C. Geuzaine, J.-F. Remacle
//
// See the LICENSE.txt file for license information. Please report all
// bugs and problems to the public mailing list <gmsh@geuz.org>.
#ifndef NODALBASIS_H
#define NODALBASIS_H
#include "fullMatrix.h"
#include "GmshDefines.h"
class nodalBasis {
public:
int type, parentType, order, dimension, numFaces;
bool serendip;
fullMatrix<double> points;
nodalBasis() {};
nodalBasis(int tag);
virtual ~nodalBasis() {}
virtual int getNumShapeFunctions() const = 0;
// Basis functions & gradients evaluation
virtual void f(double u, double v, double w, double *sf) const = 0;
virtual void f(const fullMatrix<double> &coord, fullMatrix<double> &sf) const = 0;
virtual void df(double u, double v, double w, double grads[][3]) const = 0;
virtual void df(const fullMatrix<double> &coord, fullMatrix<double> &dfm) const = 0;
virtual void ddf(double u, double v, double w, double grads[][3][3]) const {Msg::Fatal("Not implemented");};
virtual void dddf(double u, double v, double w, double grads[][3][3][3]) const {Msg::Fatal("Not implemented");};
// closures is the list of the nodes of each face, in the order of
// the polynomialBasis of the face; fullClosures is mapping of the
// nodes of the element that rotates the element so that the
// considered face becomes the first one in the right orientation;
// For element, like prisms that have different kind of faces,
// fullCLosure[i] rotates the element so that the considered face
// becomes the closureRef[i]-th face (the first tringle or the first
// quad face)
class closure : public std::vector<int> {
public:
int type;
};
typedef std::vector<closure> clCont;
clCont closures, fullClosures;
std::vector<int> closureRef;
// for a given face/edge, with both a sign and a rotation, give an
// ordered list of nodes on this face/edge
virtual int getClosureType(int id) const { return closures[id].type; }
virtual const std::vector<int> &getClosure(int id) const { return closures[id]; }
virtual const std::vector<int> &getFullClosure(int id) const { return fullClosures[id]; }
inline int getClosureId(int iFace, int iSign=1, int iRot=0) const;
inline void breakClosureId(int i, int &iFace, int &iSign, int &iRot) const;
};
inline int nodalBasis::getClosureId(int iFace, int iSign, int iRot) const
{
return iFace + numFaces*(iSign == 1 ? 0 : 1) + 2*numFaces*iRot;
}
inline void nodalBasis::breakClosureId(int i, int &iFace, int &iSign, int &iRot) const
{
iFace = i % numFaces;
i = (i - iFace)/numFaces;
iSign = i % 2;
iRot = (i - iSign) / 2;
}
#endif
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