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Diffstat (limited to 'docs/source/grids.rst')
| -rw-r--r-- | docs/source/grids.rst | 5 |
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diff --git a/docs/source/grids.rst b/docs/source/grids.rst index 7f362a92..4c0bc577 100644 --- a/docs/source/grids.rst +++ b/docs/source/grids.rst @@ -11,6 +11,11 @@ Grids Grid files are important for shifting and transforming between datums +PROJ supports CTable2, NTv1 and NTv2 files for horizontal grid corrections and +the GTX file format for vertical corrections. Details about the formats can be +found in the GDAL documentation. GDAL reads and writes all formats. Using GDAL +for construction of new grids is recommended. + US, Canadian, French and New Zealand -------------------------------------------------------------------------------- |