/**************************************************************************
 * interpolater.hxx -- routines to handle linear interpolation from a table of
 *                     x,y   The table must be sorted by "x" in ascending order
 *
 * Written by Curtis Olson, started April 1998.
 *
 * Copyright (C) 1998  Curtis L. Olson  - curt@me.umn.edu
 *
 * This program 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 of the
 * License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * $Id$
 * (Log is kept at end of this file)
 **************************************************************************/


#ifndef _INTERPOLATER_H
#define _INTERPOLATER_H


#ifndef __cplusplus                                                          
# error This library requires C++
#endif                                   


#define MAX_TABLE_SIZE 32


class fgINTERPTABLE {
    int size;
    double table[MAX_TABLE_SIZE][2];

public:

    // Constructor -- loads the interpolation table from the specified
    // file
    fgINTERPTABLE( char *file );

    // Given an x value, linearly interpolate the y value from the table
    double interpolate(double x);

    // Destructor
    ~fgINTERPTABLE( void );
};


#endif /* _INTERPOLATER_H */


/* $Log$
/* Revision 1.1  1998/04/21 19:14:23  curt
/* Modified Files:
/*     Makefile.am Makefile.in
/* Added Files:
/*     interpolater.cxx interpolater.hxx
/*
 */