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- /*
- * Copyright 1984-1991, 1992, 1993, 1994, Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
- * the contents of this file may not be disclosed to third parties, copied or
- * duplicated in any form, in whole or in part, without the prior written
- * permission of Silicon Graphics, Inc.
- *
- * RESTRICTED RIGHTS LEGEND:
- * Use, duplication or disclosure by the Government is subject to restrictions
- * as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data
- * and Computer Software clause at DFARS 252.227-7013, and/or in similar or
- * successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -
- * rights reserved under the Copyright Laws of the United States.
- */
-
- typedef struct grid {
- int xsize, zsize;
- float xmin, zmin;
- float xmax, zmax;
- float stepsize;
- float **elv;
- } grid_t;
-
-
-
- /*
- * collide_grid() returns true if the given point is lower than the given grid
- * at the point's x and z location.
- */
- extern int collide_grid(float px, float py, float pz, grid_t *g);
-
-
-
- /*
- * read_grid() reads a grid file
- */
- extern grid_t *read_grid(char *fname);
-
-