svn-gvsig-desktop / tags / v1_1_2_Build_1045 / libraries / libjni-proj4 / src / PJ_putp4p.c @ 38629
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#ifndef lint
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static const char SCCSID[]="@(#)PJ_putp4p.c 4.1 94/02/15 GIE REL"; |
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#endif
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#define PROJ_PARMS__ \
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double C_x, C_y;
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#define PJ_LIB__
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# include <projects.h> |
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PROJ_HEAD(putp4p, "Putnins P4'") "\n\tPCyl., Sph."; |
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PROJ_HEAD(weren, "Werenskiold I") "\n\tPCyl., Sph."; |
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FORWARD(s_forward); /* spheroid */
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lp.phi = aasin(0.883883476 * sin(lp.phi)); |
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xy.x = P->C_x * lp.lam * cos(lp.phi); |
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xy.x /= cos(lp.phi *= 0.333333333333333); |
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xy.y = P->C_y * sin(lp.phi); |
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return (xy);
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} |
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INVERSE(s_inverse); /* spheroid */
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lp.phi = aasin(xy.y / P->C_y); |
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lp.lam = xy.x * cos(lp.phi) / P->C_x; |
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lp.phi *= 3.;
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lp.lam /= cos(lp.phi); |
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lp.phi = aasin(1.13137085 * sin(lp.phi)); |
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return (lp);
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} |
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FREEUP; if (P) pj_dalloc(P); }
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static PJ *
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setup(PJ *P) {
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P->es = 0.; P->inv = s_inverse; P->fwd = s_forward;
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return P;
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} |
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ENTRY0(putp4p) P->C_x = 0.874038744; P->C_y = 3.883251825; ENDENTRY(setup(P)) |
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ENTRY0(weren) P->C_x = 1.; P->C_y = 4.442882938; ENDENTRY(setup(P)) |