pj_latlong.cpp

来自「projapi是一个关于GIS行业投影转换的程序库」· C++ 代码 · 共 39 行

#include "stdafx.h"


/* 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)