1 files changed, 0 insertions, 78 deletions
diff --git a/src/3rdparty/proj/PJ_vandg.c b/src/3rdparty/proj/PJ_vandg.c
deleted file mode 100644
index 784674b7..00000000
--- a/src/3rdparty/proj/PJ_vandg.c
+++ /dev/null
@@ -1,78 +0,0 @@
-#define PJ_LIB__
-# include	<projects.h>
-PROJ_HEAD(vandg, "van der Grinten (I)") "\n\tMisc Sph";
-# define TOL		1.e-10
-# define THIRD		.33333333333333333333
-# define TWO_THRD	.66666666666666666666
-# define C2_27		.07407407407407407407
-# define PI4_3		4.18879020478639098458
-# define PISQ		9.86960440108935861869
-# define TPISQ		19.73920880217871723738
-# define HPISQ		4.93480220054467930934
-FORWARD(s_forward); /* spheroid */
-	double  al, al2, g, g2, p2;
-
-	p2 = fabs(lp.phi / HALFPI);
-	if ((p2 - TOL) > 1.) F_ERROR;
-	if (p2 > 1.)
-		p2 = 1.;
-	if (fabs(lp.phi) <= TOL) {
-		xy.x = lp.lam;
-		xy.y = 0.;
-	} else if (fabs(lp.lam) <= TOL || fabs(p2 - 1.) < TOL) {
-		xy.x = 0.;
-		xy.y = PI * tan(.5 * asin(p2));
-		if (lp.phi < 0.) xy.y = -xy.y;
-	} else {
-		al = .5 * fabs(PI / lp.lam - lp.lam / PI);
-		al2 = al * al;
-		g = sqrt(1. - p2 * p2);
-		g = g / (p2 + g - 1.);
-		g2 = g * g;
-		p2 = g * (2. / p2 - 1.);
-		p2 = p2 * p2;
-		xy.x = g - p2; g = p2 + al2;
-		xy.x = PI * (al * xy.x + sqrt(al2 * xy.x * xy.x - g * (g2 - p2))) / g;
-		if (lp.lam < 0.) xy.x = -xy.x;
-		xy.y = fabs(xy.x / PI);
-		xy.y = 1. - xy.y * (xy.y + 2. * al);
-		if (xy.y < -TOL) F_ERROR;
-		if (xy.y < 0.)	xy.y = 0.;
-		else		xy.y = sqrt(xy.y) * (lp.phi < 0. ? -PI : PI);
-	}
-	return (xy);
-}
-INVERSE(s_inverse); /* spheroid */
-	double t, c0, c1, c2, c3, al, r2, r, m, d, ay, x2, y2;
-
-	x2 = xy.x * xy.x;
-	if ((ay = fabs(xy.y)) < TOL) {
-		lp.phi = 0.;
-		t = x2 * x2 + TPISQ * (x2 + HPISQ);
-		lp.lam = fabs(xy.x) <= TOL ? 0. :
-		   .5 * (x2 - PISQ + sqrt(t)) / xy.x;
-		return (lp);
-	}
-	y2 = xy.y * xy.y;
-	r = x2 + y2;	r2 = r * r;
-	c1 = - PI * ay * (r + PISQ);
-	c3 = r2 + TWOPI * (ay * r + PI * (y2 + PI * (ay + HALFPI)));
-	c2 = c1 + PISQ * (r - 3. *  y2);
-	c0 = PI * ay;
-	c2 /= c3;
-	al = c1 / c3 - THIRD * c2 * c2;
-	m = 2. * sqrt(-THIRD * al);
-	d = C2_27 * c2 * c2 * c2 + (c0 * c0 - THIRD * c2 * c1) / c3;
-	if (((t = fabs(d = 3. * d / (al * m))) - TOL) <= 1.) {
-		d = t > 1. ? (d > 0. ? 0. : PI) : acos(d);
-		lp.phi = PI * (m * cos(d * THIRD + PI4_3) - THIRD * c2);
-		if (xy.y < 0.) lp.phi = -lp.phi;
-		t = r2 + TPISQ * (x2 - y2 + HPISQ);
-		lp.lam = fabs(xy.x) <= TOL ? 0. :
-		   .5 * (r - PISQ + (t <= 0. ? 0. : sqrt(t))) / xy.x;
-	} else
-		I_ERROR;
-	return (lp);
-}
-FREEUP; if (P) pj_dalloc(P); }
-ENTRY0(vandg) P->es = 0.; P->inv = s_inverse; P->fwd = s_forward; ENDENTRY(P)