/******************************************************************************
* $Id: pj_latlong.c,v 1.2 2000/07/07 06:04:23 warmerda Exp $
*
* Project: PROJ.4
* Purpose: Stub projection implementation for lat/long coordinates. We
* don't actually change the coordinates, but we want proj=latlong
* to act sort of like a projection.
* Author: Frank Warmerdam, warmerda@home.com
*
******************************************************************************
* Copyright (c) 2000, Frank Warmerdam
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
******************************************************************************
*
* $Log: pj_latlong.c,v $
* Revision 1.2 2000/07/07 06:04:23 warmerda
* added longlat alias
*
* Revision 1.1 2000/07/06 23:32:27 warmerda
* New
*
*/
/* very loosely based upon DMA code by Bradford W. Drew */
#define PJ_LIB__
#include <projects.h>
PROJ_HEAD(latlong, "Lat/long (Geodetic)") "\n\t";
PROJ_HEAD(longlat, "Lat/long (Geodetic)") "\n\t";
FORWARD(forward);
xy.x = lp.lam / P->a;
xy.y = lp.phi / P->a;
return xy;
}
INVERSE(inverse);
lp.phi = xy.y * P->a;
lp.lam = xy.x * P->a;
return lp;
}
FREEUP; if (P) pj_dalloc(P); }
ENTRY0(latlong)
P->is_latlong = 1;
P->x0 = 0.0;
P->y0 = 0.0;
P->inv = inverse; P->fwd = forward;
ENDENTRY(P)
ENTRY0(longlat)
P->is_latlong = 1;
P->x0 = 0.0;
P->y0 = 0.0;
P->inv = inverse; P->fwd = forward;
ENDENTRY(P)
