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flightgear/Scenery/mesh.h
1997-05-23 15:40:04 +00:00

72 lines
2.1 KiB
C

/**************************************************************************
* mesh.h -- data structures and routines for processing terrain meshes
*
* Written by Curtis Olson, started May 1997.
*
* Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
*
* 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 MESH_H
#define MESH_H
struct mesh {
/* start coordinates (in arc seconds) */
double originx, originy;
/* number of rows and columns */
int rows, cols;
/* Distance between row and column data points (in arc seconds) */
double row_step, col_step;
/* pointer to the actual mesh data dynamically allocated */
float *mesh_data;
/* a temporary values for the parser to use */
char option_name[32];
int cur_row, cur_col;
};
/* return a pointer to a new mesh structure (no data array allocated yet) */
struct mesh *(new_mesh)();
/* return a pointer to a dynamically allocated array */
float *(new_mesh_data)(int nrows, int ncols);
/* set the option name in the mesh data structure */
void mesh_set_option_name(struct mesh *m, char *name);
/* set an option value in the mesh data structure */
void mesh_set_option_value(struct mesh *m, char *value);
#endif MESH_H
/* $Log$
/* Revision 1.2 1997/05/23 15:40:42 curt
/* Added GNU copyright headers.
/*
* Revision 1.1 1997/05/16 16:07:05 curt
* Initial revision.
*
*/