NGO48 (EPSG:4273) to ETRS89 (EPSG:4258) triangulation-based transformation #2554
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Merged
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rouault
reviewed
Mar 4, 2021
Co-authored-by: Even Rouault <even.rouault@spatialys.com>
Co-authored-by: Even Rouault <even.rouault@spatialys.com>
tinshift_simplified_etrs89_ngo48.json removed in Makefile
rouault
reviewed
Mar 4, 2021
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@himsve Do you want to get this merged as it before EPSG comes with a code for the tinshift method ? |
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Yes, please merged it. As I mentioned, this is just a temporary solution until EPSG handles TIN transformations. But it's works well. 👍 |
rouault
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Mar 23, 2021
…), and NGO48 to ETRS89 TIN transfrm (OSGeo#2554) * Correction grid NKG:ETRF14 to EPSG:7922 * Added NKG:ITRF_TO_NO GIE test * Correction grid no_kv_NKGETRF14_EPSG7922_2000 added to grid_alternatives.sql * proj_method 'velocity_grid' added in check_grid_alternatives_proj_method. NKG velocity grid added to grid_alternatives.sql * also include follow-up fix to master OSGeo#2548: e10a849 * Add NGO48 (EPSG:4273) to ETRS89 (EPSG:4258) triangulation-based transformation (OSGeo#2554) Co-authored-by: Even Rouault <even.rouault@spatialys.com>
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NGO48 (EPSG:4273) to ETRS89 (EPSG:4258) triangulation-based transformation.
The transformation is based on the TIN-json file 'no_kv_ETRS89NO_NGO48_TIN.json'. The transformation in mentioned TIN-file has the direction EPSG:4258>EPSG:4273.
The transformation EPSG:4273>EPSG:4258 is already defined as EPSG:1653 at https://epsg.io/1653 as a Position Vector transformation (EPSG:9606). The triangulation-based NGO48>ETRS89 transformation is not yet registered with new EPSG code due to that triangulation-based transformation is not registered as method at epsg.io.
Preliminary the EPSG:4273>EPSG:4258 triangulation-based transformation is implemented as encapsulated proj string in other_tranformation.
This pull request is related to #OSGeo/PROJ-data#60