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FEGrid.h
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1996-10-12
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// FEGrid.h -*- C++ -*-
/*
Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton
This file is part of Octave.
Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING. If not, write to the Free
Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined (octave_FEGrid_h)
#define octave_FEGrid_h 1
class ostream;
#include "dColVector.h"
extern "C++" {
#ifndef Vector
#define Vector ColumnVector
#endif
class FEGrid
{
public:
FEGrid (void);
FEGrid (const Vector& elbnds);
FEGrid (int nel, double width);
FEGrid (int nel, double left, double right);
int in_bounds (double x) const;
int element (double x) const;
double left (void) const;
double right (void) const;
Vector element_boundaries (void) const;
friend ostream& operator << (ostream&, const FEGrid&);
protected:
Vector elem;
private:
void error (const char* msg) const;
void nel_error (void) const;
void check_grid (void) const;
};
inline FEGrid::FEGrid (void) {}
inline FEGrid::FEGrid (const Vector& elbnds)
{ elem = elbnds; check_grid (); }
inline int FEGrid::in_bounds (double x) const
{ return (x >= left () && x <= right ()); }
inline double FEGrid::left (void) const
{ return elem.elem (0); }
inline double FEGrid::right (void) const
{ return elem.elem (elem.capacity () - 1); }
inline Vector FEGrid::element_boundaries (void) const
{ return elem; }
} // extern "C++"
#endif
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; page-delimiter: "^/\\*" ***
;;; End: ***
*/