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/******************************************************************************
* Project: PROJ.4
* Purpose: Conversion from geographic to geocentric latitude and back.
* Author: Thomas Knudsen (2017)
*
******************************************************************************
* Copyright (c) 2017, SDFE, http://www.sdfe.dk
* Copyright (c) 2017, Thomas Knudsen
*
* 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.
*****************************************************************************/
#define PJ_LIB__
#include <math.h>
#include "proj.h"
#include "proj_internal.h"
#include "projects.h"
PROJ_HEAD(geoc, "Geocentric Latitude");
/* Geographical to geocentric */
static PJ_COORD forward(PJ_COORD coo, PJ *P) {
return pj_geocentric_latitude (P, PJ_FWD, coo);
}
/* Geocentric to geographical */
static PJ_COORD inverse(PJ_COORD coo, PJ *P) {
return pj_geocentric_latitude (P, PJ_INV, coo);
}
static PJ *CONVERSION(geoc, 1) {
P->inv4d = inverse;
P->fwd4d = forward;
P->left = PJ_IO_UNITS_ANGULAR;
P->right = PJ_IO_UNITS_ANGULAR;
P->is_latlong = 1;
return P;
}
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