root / trunk / libraries / libjni-proj4 / src / PJ_goode.c @ 13136
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#ifndef lint
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static const char SCCSID[]="@(#)PJ_goode.c 4.1 94/02/15 GIE REL"; |
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#endif
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#define PROJ_PARMS__ \
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struct PJconsts *sinu; \
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struct PJconsts *moll;
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#define PJ_LIB__
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#include <projects.h> |
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PROJ_HEAD(goode, "Goode Homolosine") "\n\tPCyl, Sph."; |
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C_NAMESPACE PJ |
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*pj_sinu(PJ *), *pj_moll(PJ *); |
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#define Y_COR 0.05280 |
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#define PHI_LIM .71093078197902358062 |
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FORWARD(s_forward); /* spheroid */
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if (fabs(lp.phi) <= PHI_LIM)
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xy = P->sinu->fwd(lp, P->sinu); |
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else {
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xy = P->moll->fwd(lp, P->moll); |
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xy.y -= lp.phi >= 0.0 ? Y_COR : -Y_COR; |
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} |
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return (xy);
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} |
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INVERSE(s_inverse); /* spheroid */
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if (fabs(xy.y) <= PHI_LIM)
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lp = P->sinu->inv(xy, P->sinu); |
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else {
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xy.y += xy.y >= 0.0 ? Y_COR : -Y_COR; |
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lp = P->moll->inv(xy, P->moll); |
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} |
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return (lp);
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} |
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FREEUP; |
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if (P) {
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if (P->sinu)
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(*(P->sinu->pfree))(P->sinu); |
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if (P->moll)
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(*(P->moll->pfree))(P->moll); |
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pj_dalloc(P); |
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} |
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} |
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ENTRY2(goode, sinu, moll) |
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P->es = 0.;
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if (!(P->sinu = pj_sinu(0)) || !(P->moll = pj_moll(0))) |
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E_ERROR_0; |
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if (!(P->sinu = pj_sinu(P->sinu)) || !(P->moll = pj_moll(P->moll)))
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E_ERROR_0; |
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P->fwd = s_forward; |
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P->inv = s_inverse; |
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ENDENTRY(P) |