diff options
Diffstat (limited to 'src/iso19111/operation/transformation.cpp')
| -rw-r--r-- | src/iso19111/operation/transformation.cpp | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/src/iso19111/operation/transformation.cpp b/src/iso19111/operation/transformation.cpp index 36540242..8bd4f3de 100644 --- a/src/iso19111/operation/transformation.cpp +++ b/src/iso19111/operation/transformation.cpp @@ -2011,8 +2011,8 @@ isGeographic3DToGravityRelatedHeight(const OperationMethodNNPtr &method, "1100", // Geog3D to Geog2D+GravityRelatedHeight (PL txt) "1103", // Geog3D to Geog2D+GravityRelatedHeight (EGM) "1105", // Geog3D to Geog2D+GravityRelatedHeight (ITAL2005) - // "1110", // Geog3D to Geog2D+Depth (Gravsoft) FIXME: to investigate - // how to map this to PROJ pipeline (depth vs height) + "1109", // Geographic3D to Depth (Gravsoft) + "1110", // Geog3D to Geog2D+Depth (Gravsoft) "9661", // Geographic3D to GravityRelatedHeight (EGM) "9662", // Geographic3D to GravityRelatedHeight (Ausgeoid98) "9663", // Geographic3D to GravityRelatedHeight (OSGM-GB) @@ -3164,6 +3164,13 @@ void Transformation::_exportToPROJString( concat("Can apply ", methodName, " only to GeographicCRS")); } + auto targetVertCRS = targetCRS()->extractVerticalCRS(); + if (!targetVertCRS) { + throw io::FormattingException( + concat("Can apply ", methodName, + " only to a target CRS that has a VerticalCRS")); + } + if (!formatter->omitHorizontalConversionInVertTransformation()) { formatter->startInversion(); formatter->pushOmitZUnitConversion(); @@ -3178,6 +3185,15 @@ void Transformation::_exportToPROJString( if (doInversion) { formatter->startInversion(); } + + // For Geographic3D to Depth methods, we rely on the vertical axis + // direction instead of the name/code of the transformation method. + if (targetVertCRS->coordinateSystem()->axisList()[0]->direction() == + cs::AxisDirection::DOWN) { + formatter->addStep("axisswap"); + formatter->addParam("order", "1,2,-3"); + } + formatter->addStep("vgridshift"); formatter->addParam("grids", filename); formatter->addParam("multiplier", 1.0); |