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| author | Even Rouault <even.rouault@spatialys.com> | 2020-04-04 13:17:02 +0200 |
|---|---|---|
| committer | Even Rouault <even.rouault@spatialys.com> | 2020-04-04 13:17:02 +0200 |
| commit | ef3a387abd5989f6d5242a6c8cd0f7b6e7318484 (patch) | |
| tree | de97cf09f722c4e819eed4dccc0e3aee4791bda7 /docs/source/operations/operations_computation.rst | |
| parent | 99a2d5f248b828ff97121b0137569a0094b5c63e (diff) | |
| download | PROJ-ef3a387abd5989f6d5242a6c8cd0f7b6e7318484.tar.gz PROJ-ef3a387abd5989f6d5242a6c8cd0f7b6e7318484.zip | |
Doc: define 'Ballpark transformation'
Diffstat (limited to 'docs/source/operations/operations_computation.rst')
| -rw-r--r-- | docs/source/operations/operations_computation.rst | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/docs/source/operations/operations_computation.rst b/docs/source/operations/operations_computation.rst index ef84cfb2..2f532127 100644 --- a/docs/source/operations/operations_computation.rst +++ b/docs/source/operations/operations_computation.rst @@ -106,11 +106,8 @@ which can be used as an override). As those results all involve operations that does not have a perfect accuracy and that does not cover the area of use of the 2 CRSs, a -'Ballpark geographic offset from NAD27 to NAD83' operation is synthetized by PROJ. -This operation is a sort of dummy operation that only takes into account potential -difference of axis orders (long-lat vs lat-long), units (degree vs grads) and -prime meridian (Greewich vs Paris/Rome/other historic prime meridians). It does -not attempt any datum shift, hence the "ballpark" qualifier in its name. +'Ballpark geographic offset from NAD27 to NAD83' operation is synthetized by PROJ +(see :term:`Ballpark transformation`) Filtering and sorting of coordinate operations ---------------------------------------------- |