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| author | Sergey Fedoseev <fedoseev.sergey@gmail.com> | 2017-04-11 22:03:37 +0500 |
|---|---|---|
| committer | Tim Graham <timograham@gmail.com> | 2017-04-12 09:17:43 -0400 |
| commit | 4401e3be36bf66136a7b5bc1915f60a31918728f (patch) | |
| tree | 9784f92b14e5f797f58ffd1a438fe4443e263aa5 /docs/ref | |
| parent | c30cc8d2221a5c803c17c7417182dfbb9e1dde17 (diff) | |
[1.11.x] Corrected docs regarding MySQL support of Length GIS function.
Backport of 33421ed10c7d26a7692edf5ba95c98107b6b0a98 from master
Diffstat (limited to 'docs/ref')
| -rw-r--r-- | docs/ref/contrib/gis/functions.txt | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/docs/ref/contrib/gis/functions.txt b/docs/ref/contrib/gis/functions.txt index b43989eff7..3216371b25 100644 --- a/docs/ref/contrib/gis/functions.txt +++ b/docs/ref/contrib/gis/functions.txt @@ -346,19 +346,19 @@ Returns ``True`` if its value is a valid geometry and ``False`` otherwise. <https://postgis.net/docs/ST_Length.html>`__, SpatiaLite Accepts a single geographic linestring or multilinestring field or expression -and returns its length as an :class:`~django.contrib.gis.measure.Distance` -measure. On MySQL, a raw float value is returned when the coordinates -are geodetic. +and returns its length as a :class:`~django.contrib.gis.measure.Distance` +measure. On PostGIS and SpatiaLite, when the coordinates are geodetic (angular), you can specify if the calculation should be based on a simple sphere (less accurate, less resource-intensive) or on a spheroid (more accurate, more resource-intensive) with the ``spheroid`` keyword argument. +MySQL doesn't support length calculations on geographic SRSes. + .. versionchanged:: 1.11 - In older versions, a raw value was returned on MySQL when used on - projected SRS. + In older versions, a raw value was returned on MySQL. ``MakeValid`` ============= |