/usr/include/psurface/DirectionFunction.h is in libpsurface-dev 2.0.0-2.
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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 | #ifndef PSURFACE_DIRECTION_FUNCTION_H
#define PSURFACE_DIRECTION_FUNCTION_H
#include "StaticVector.h"
namespace psurface {
/** \brief Abstract base class for direction fields on simplicial surfaces */
template <int dimworld, class ctype>
struct DirectionFunction
{
virtual ~DirectionFunction() {};
};
/** \brief Abstract base class for direction fields that are given by closed-form expressions.
*/
template <int dimworld, class ctype>
struct AnalyticDirectionFunction
: public DirectionFunction<dimworld,ctype>
{
/** \brief Return a direction for a given world position */
virtual StaticVector<ctype,dimworld> operator()(const StaticVector<ctype,dimworld>& position) const = 0;
};
/** \brief Abstract base class for direction fields that are given per vertex.
*/
template <int dimworld, class ctype>
struct DiscreteDirectionFunction
: public DirectionFunction<dimworld,ctype>
{
/** \brief Return a direction for a given vertex index */
virtual StaticVector<ctype,dimworld> operator()(size_t index) const = 0;
};
} // namespace psurface
#endif
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