diff options
Diffstat (limited to 'src/datum.cpp')
| -rw-r--r-- | src/datum.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/datum.cpp b/src/datum.cpp index 9f9fb4ec..975a870a 100644 --- a/src/datum.cpp +++ b/src/datum.cpp @@ -388,7 +388,10 @@ bool PrimeMeridian::_isEquivalentTo( !IdentifiedObject::_isEquivalentTo(other, criterion)) { return false; } - return longitude()._isEquivalentTo(otherPM->longitude(), criterion); + // In MapInfo, the Paris prime meridian is returned as 2.3372291666667 + // instead of the official value of 2.33722917, which is a relative + // error in the 1e-9 range. + return longitude()._isEquivalentTo(otherPM->longitude(), criterion, 1e-8); } //! @endcond |