gproj.c

来自「支持各种栅格图像和矢量图像读取的库」· C语言 代码 · 共 47 行

/*
 * gproj.c
$Log$
Revision 1.3  2006/02/07 10:17:15  kdejong
Fixed endian compile problem
some rcs issues of Kor, I guess
Checked in by cees ([e-mail]) on account of Kor

Revision 1.2  2005/10/03 07:23:00  kor
Removed rcs id string

Revision 1.1.1.1  2000/01/04 21:04:44  cees
Initial import Cees

Revision 2.0  1996/05/23 13:16:26  cees
csf2clean

Revision 1.1  1996/05/23 13:11:49  cees
Initial revision

Revision 1.3  1995/11/01 17:23:03  cees
.

 * Revision 1.2  1994/09/08  17:16:23  cees
 * added c2man docs + small code changes
 *
 * Revision 1.1  1994/08/26  13:33:23  cees
 * Initial revision
 *
 */
#include "csf.h"
#include "csfimpl.h"

/* get projection type
 * MgetProjection returns the projection type of the map.
 * In version 2, projections are simplified. We only discern between
 * a projection with y increasing (PT_YINCT2B) and decreasing (PT_YDECT2B) 
 * from top to bottom.
 * The old constants are mapped to these two.
 * returns PT_YINCT2B or PT_YDECT2B
 */
CSF_PT MgetProjection(
	const MAP *map) /* map handle */
{
	return (map->main.projection) ? PT_YDECT2B : PT_YINCT2B;
}