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Diffstat (limited to 'src/projections/omerc.cpp')
| -rw-r--r-- | src/projections/omerc.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/projections/omerc.cpp b/src/projections/omerc.cpp index c0278043..e07c209e 100644 --- a/src/projections/omerc.cpp +++ b/src/projections/omerc.cpp @@ -201,6 +201,10 @@ PJ *PROJECTION(omerc) { L = pow(pj_tsfn(phi2, sin(phi2), P->e), Q->B); F = Q->E / H; p = (L - H) / (L + H); + if( p == 0 ) { + // Not quite, but es is very close to 1... + return pj_default_destructor(P, PJD_ERR_INVALID_ECCENTRICITY); + } J = Q->E * Q->E; J = (J - L * H) / (J + L * H); if ((con = lam1 - lam2) < -M_PI) |