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#define PJ_LIB__
#include <projects.h>
PROJ_HEAD(eck3, "Eckert III") "\n\tPCyl, Sph.";
PROJ_HEAD(putp1, "Putnins P1") "\n\tPCyl, Sph.";
PROJ_HEAD(wag6, "Wagner VI") "\n\tPCyl, Sph.";
PROJ_HEAD(kav7, "Kavraisky VII") "\n\tPCyl, Sph.";
struct pj_opaque {
double C_x, C_y, A, B;
};
static XY s_forward (LP lp, PJ *P) { /* Spheroidal, forward */
XY xy = {0.0,0.0};
struct pj_opaque *Q = P->opaque;
xy.y = Q->C_y * lp.phi;
xy.x = Q->C_x * lp.lam * (Q->A + asqrt(1. - Q->B * lp.phi * lp.phi));
return xy;
}
static LP s_inverse (XY xy, PJ *P) { /* Spheroidal, inverse */
LP lp = {0.0,0.0};
struct pj_opaque *Q = P->opaque;
lp.phi = xy.y / Q->C_y;
lp.lam = xy.x / (Q->C_x * (Q->A + asqrt(1. - Q->B * lp.phi * lp.phi)));
return lp;
}
static void *freeup_new (PJ *P) { /* Destructor */
if (0==P)
return 0;
if (0==P->opaque)
return pj_dealloc (P);
pj_dealloc (P->opaque);
return pj_dealloc(P);
}
static void freeup (PJ *P) {
freeup_new (P);
return;
}
static PJ *setup(PJ *P) {
P->es = 0.;
P->inv = s_inverse;
P->fwd = s_forward;
return P;
}
PJ *PROJECTION(eck3) {
struct pj_opaque *Q = pj_calloc (1, sizeof (struct pj_opaque));
if (0==Q)
return freeup_new (P);
P->opaque = Q;
Q->C_x = 0.42223820031577120149;
Q->C_y = 0.84447640063154240298;
Q->A = 1.0;
Q->B = 0.4052847345693510857755;
return setup(P);
}
PJ *PROJECTION(kav7) {
struct pj_opaque *Q = pj_calloc (1, sizeof (struct pj_opaque));
if (0==Q)
return freeup_new (P);
P->opaque = Q;
/* Defined twice in original code - Using 0.866...,
* but leaving the other one here as a safety measure.
* Q->C_x = 0.2632401569273184856851; */
Q->C_x = 0.8660254037844;
Q->C_y = 1.;
Q->A = 0.;
Q->B = 0.30396355092701331433;
return setup(P);
}
PJ *PROJECTION(wag6) {
struct pj_opaque *Q = pj_calloc (1, sizeof (struct pj_opaque));
if (0==Q)
return freeup_new (P);
P->opaque = Q;
Q->C_x = Q->C_y = 0.94745;
Q->A = 0.0;
Q->B = 0.30396355092701331433;
return setup(P);
}
PJ *PROJECTION(putp1) {
struct pj_opaque *Q = pj_calloc (1, sizeof (struct pj_opaque));
if (0==Q)
return freeup_new (P);
P->opaque = Q;
Q->C_x = 1.89490;
Q->C_y = 0.94745;
Q->A = -0.5;
Q->B = 0.30396355092701331433;
return setup(P);
}
#ifdef PJ_OMIT_SELFTEST
int pj_eck3_selftest (void) {return 0;}
#else
int pj_eck3_selftest (void) {
double tolerance_lp = 1e-10;
double tolerance_xy = 1e-7;
char s_args[] = {"+proj=eck3 +a=6400000 +lat_1=0.5 +lat_2=2"};
LP fwd_in[] = {
{ 2, 1},
{ 2,-1},
{-2, 1},
{-2,-1}
};
XY s_fwd_expect[] = {
{ 188652.01572153764, 94328.919337031271},
{ 188652.01572153764, -94328.919337031271},
{-188652.01572153764, 94328.919337031271},
{-188652.01572153764, -94328.919337031271},
};
XY inv_in[] = {
{ 200, 100},
{ 200,-100},
{-200, 100},
{-200,-100}
};
LP s_inv_expect[] = {
{ 0.0021202405520236059, 0.0010601202759750307},
{ 0.0021202405520236059, -0.0010601202759750307},
{-0.0021202405520236059, 0.0010601202759750307},
{-0.0021202405520236059, -0.0010601202759750307},
};
return pj_generic_selftest (0, s_args, tolerance_xy, tolerance_lp, 4, 4, fwd_in, 0, s_fwd_expect, inv_in, 0, s_inv_expect);
}
#endif
#ifdef PJ_OMIT_SELFTEST
int pj_kav7_selftest (void) {return 0;}
#else
int pj_kav7_selftest (void) {
double tolerance_lp = 1e-10;
double tolerance_xy = 1e-7;
char s_args[] = {"+proj=kav7 +a=6400000 +lat_1=0.5 +lat_2=2"};
LP fwd_in[] = {
{ 2, 1},
{ 2,-1},
{-2, 1},
{-2,-1}
};
XY s_fwd_expect[] = {
{ 193462.9749437288, 111701.07212763709},
{ 193462.9749437288, -111701.07212763709},
{-193462.9749437288, 111701.07212763709},
{-193462.9749437288, -111701.07212763709}
};
XY inv_in[] = {
{ 200, 100},
{ 200,-100},
{-200, 100},
{-200,-100}
};
LP s_inv_expect[] = {
{ 0.0020674833579085268, 0.00089524655489191132},
{ 0.0020674833579085268, -0.00089524655489191132},
{-0.0020674833579085268, 0.00089524655489191132},
{-0.0020674833579085268, -0.00089524655489191132}
};
return pj_generic_selftest (0, s_args, tolerance_xy, tolerance_lp, 4, 4, fwd_in, 0, s_fwd_expect, inv_in, 0, s_inv_expect);
}
#endif
#ifdef PJ_OMIT_SELFTEST
int pj_wag6_selftest (void) {return 0;}
#else
int pj_wag6_selftest (void) {
double tolerance_lp = 1e-10;
double tolerance_xy = 1e-7;
char s_args[] = {"+proj=wag6 +a=6400000 +lat_1=0.5 +lat_2=2"};
LP fwd_in[] = {
{ 2, 1},
{ 2,-1},
{-2, 1},
{-2,-1}
};
XY s_fwd_expect[] = {
{ 211652.56216440981, 105831.18078732977},
{ 211652.56216440981, -105831.18078732977},
{-211652.56216440981, 105831.18078732977},
{-211652.56216440981, -105831.18078732977}
};
XY inv_in[] = {
{ 200, 100},
{ 200,-100},
{-200, 100},
{-200,-100}
};
LP s_inv_expect[] = {
{ 0.0018898022163257513, 0.000944901108123818},
{ 0.0018898022163257513, -0.000944901108123818},
{-0.0018898022163257513, 0.000944901108123818},
{-0.0018898022163257513, -0.000944901108123818}
};
return pj_generic_selftest (0, s_args, tolerance_xy, tolerance_lp, 4, 4, fwd_in, 0, s_fwd_expect, inv_in, 0, s_inv_expect);
}
#endif
#ifdef PJ_OMIT_SELFTEST
int pj_putp1_selftest (void) {return 0;}
#else
int pj_putp1_selftest (void) {
double tolerance_lp = 1e-10;
double tolerance_xy = 1e-7;
char s_args[] = {"+proj=putp1 +a=6400000 +lat_1=0.5 +lat_2=2"};
LP fwd_in[] = {
{ 2, 1},
{ 2,-1},
{-2, 1},
{-2,-1}
};
XY s_fwd_expect[] = {
{ 211642.76275416015, 105831.18078732977},
{ 211642.76275416015, -105831.18078732977},
{-211642.76275416015, 105831.18078732977},
{-211642.76275416015, -105831.18078732977}
};
XY inv_in[] = {
{ 200, 100},
{ 200,-100},
{-200, 100},
{-200,-100}
};
LP s_inv_expect[] = {
{ 0.0018898022164038663, 0.000944901108123818},
{ 0.0018898022164038663, -0.000944901108123818},
{-0.0018898022164038663, 0.000944901108123818},
{-0.0018898022164038663, -0.000944901108123818}
};
return pj_generic_selftest (0, s_args, tolerance_xy, tolerance_lp, 4, 4, fwd_in, 0, s_fwd_expect, inv_in, 0, s_inv_expect);
}
#endif
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