1 /* 2 ** libproj -- library of cartographic projections 3 ** 4 ** Copyright (c) 2005, 2006 Gerald I. Evenden 5 */ 6 static const char 7 LIBPROJ_ID[] = "Id"; 8 /* 9 ** Permission is hereby granted, free of charge, to any person obtaining 10 ** a copy of this software and associated documentation files (the 11 ** "Software"), to deal in the Software without restriction, including 12 ** without limitation the rights to use, copy, modify, merge, publish, 13 ** distribute, sublicense, and/or sell copies of the Software, and to 14 ** permit persons to whom the Software is furnished to do so, subject to 15 ** the following conditions: 16 ** 17 ** The above copyright notice and this permission notice shall be 18 ** included in all copies or substantial portions of the Software. 19 ** 20 ** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 21 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 22 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 23 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 24 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 25 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 26 ** SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 27 */ 28 #define YA 0.2011637612698801744949951686 29 #define YB 0.9396926207859083840541092773 30 #define YC 0.3420201433256687330440996146 31 #define TA 0.3639702342662023613510478827 32 #define PROJ_LIB__ 33 # include <lib_proj.h> 34 PROJ_HEAD(arma, "Armadillo") "\n\tMisc., Sph., NoInv."; 35 FORWARD(s_forward); /* spheroid */ 36 double cp, cl; 37 (void) P; /* avoid warning */ 38 39 if (lp.phi >= - atan((cl = cos(lp.lam *= 0.5))/TA) ) { 40 xy.x = (1. + (cp = cos(lp.phi))) * sin(lp.lam); 41 xy.y = YA + sin(lp.phi) * YB - (1. + cp) * YC * cl; 42 } else 43 F_ERROR; 44 return (xy); 45 } 46 FREEUP; if (P) free(P); } 47 ENTRY0(arma) P->es = 0.; P->fwd = s_forward; ENDENTRY(P) 48 /* 49 ** Log: proj_armadillo.c 50 ** Revision 3.1 2006/01/11 01:38:18 gie 51 ** Initial 52 ** 53 */ 54