diff options
| author | Chris Crook <ccrook@linz.govt.nz> | 2019-12-04 09:48:08 +1300 |
|---|---|---|
| committer | Chris Crook <ccrook@linz.govt.nz> | 2019-12-20 10:23:44 +1300 |
| commit | 1433adcc673928a092c16f6555a0fcd701fdbc26 (patch) | |
| tree | 819550c4b75931e53fe4f7649e64965c5bf79c0f /src | |
| parent | 13dd313795ec37a810923c97327030b0f352d904 (diff) | |
| download | PROJ-1433adcc673928a092c16f6555a0fcd701fdbc26.tar.gz PROJ-1433adcc673928a092c16f6555a0fcd701fdbc26.zip | |
Adding support for NZLVD vertical height transformation
Diffstat (limited to 'src')
| -rw-r--r-- | src/iso19111/coordinateoperation.cpp | 16 | ||||
| -rw-r--r-- | src/proj_constants.h | 3 |
2 files changed, 18 insertions, 1 deletions
diff --git a/src/iso19111/coordinateoperation.cpp b/src/iso19111/coordinateoperation.cpp index 62d72e65..28f8b41c 100644 --- a/src/iso19111/coordinateoperation.cpp +++ b/src/iso19111/coordinateoperation.cpp @@ -8767,7 +8767,8 @@ TransformationNNPtr Transformation::substitutePROJAlternativeGridNames( } } - if (methodEPSGCode == EPSG_CODE_METHOD_VERTCON) { + if (methodEPSGCode == EPSG_CODE_METHOD_VERTCON || + methodEPSGCode == EPSG_CODE_METHOD_VERTICALGRID_NZLVD ) { auto fileParameter = parameterValue(EPSG_NAME_PARAMETER_VERTICAL_OFFSET_FILE, EPSG_CODE_PARAMETER_VERTICAL_OFFSET_FILE); @@ -9441,6 +9442,19 @@ void Transformation::_exportToPROJString( } } + if (methodEPSGCode == EPSG_CODE_METHOD_VERTICALGRID_NZLVD) { + auto fileParameter = + parameterValue(EPSG_NAME_PARAMETER_VERTICAL_OFFSET_FILE, + EPSG_CODE_PARAMETER_VERTICAL_OFFSET_FILE); + if (fileParameter && + fileParameter->type() == ParameterValue::Type::FILENAME) { + formatter->addStep("vgridshift"); + formatter->addParam("grids", fileParameter->valueFile()); + formatter->addParam("multiplier", 1.0); + return; + } + } + if (isLongitudeRotation()) { double offsetDeg = parameterValueNumeric(EPSG_CODE_PARAMETER_LONGITUDE_OFFSET, diff --git a/src/proj_constants.h b/src/proj_constants.h index 5c642862..21cd87fb 100644 --- a/src/proj_constants.h +++ b/src/proj_constants.h @@ -513,6 +513,9 @@ #define EPSG_CODE_METHOD_VERTCON 9658 #define EPSG_NAME_METHOD_VERTCON "VERTCON" +#define EPSG_CODE_METHOD_VERTICALGRID_NZLVD 1071 +#define EPSG_NAME_METHOD_VERTICALGRID_NZLVD "Vertical Offset by Grid Interpolation (NZLVD)" + #define EPSG_NAME_PARAMETER_VERTICAL_OFFSET_FILE "Vertical offset file" #define EPSG_CODE_PARAMETER_VERTICAL_OFFSET_FILE 8732 |