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Diffstat (limited to 'src/iso19111/operation/conversion.cpp')
| -rw-r--r-- | src/iso19111/operation/conversion.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/iso19111/operation/conversion.cpp b/src/iso19111/operation/conversion.cpp index 9927892d..77e703f3 100644 --- a/src/iso19111/operation/conversion.cpp +++ b/src/iso19111/operation/conversion.cpp @@ -4005,6 +4005,16 @@ void Conversion::_exportToPROJString( EPSG_CODE_PARAMETER_SCALE_FACTOR_AT_NATURAL_ORIGIN) { valueConverted = 1.0; } + if ((mapping->epsg_code == + EPSG_CODE_METHOD_HOTINE_OBLIQUE_MERCATOR_VARIANT_A || + mapping->epsg_code == + EPSG_CODE_METHOD_HOTINE_OBLIQUE_MERCATOR_VARIANT_B) && + param->epsg_code == + EPSG_CODE_PARAMETER_ANGLE_RECTIFIED_TO_SKEW_GRID) { + // Do not use 0 as the default value for +gamma of + // proj=omerc + continue; + } } else if (param->unit_type == common::UnitOfMeasure::Type::ANGULAR) { valueConverted = |