Update doc/source/programs/gdal_raster_viewshed.rst

Author: rouault

doc/source/programs/gdal_raster_viewshed.rst

@@ -73,30 +73,40 @@ Standard options
 
 .. option:: --min-distance <value>
 
+   .. versionadded:: 3.12
+
    Minimum distance from observer to compute visibility.
    Must be less than '--max-distance'
    (Not supported in cumulative mode)
 
 .. option:: --start-angle <value>
 
-   Start angle for visibility. Measured clockwise from 0 North.
+   .. versionadded:: 3.12
+
+   Start angle for visibility. Measured clockwise from 0 North, in degree.
    (Not supported in cumulative mode)
 
 .. option:: --end-angle <value>
 
-   End angle for visibility. Measured clockwise from 0 North.
+   .. versionadded:: 3.12
+
+   End angle for visibility. Measured clockwise from 0 North, in degree.
    (Not supported in cumulative mode)
 
 .. option:: --high-pitch <value>
 
-   High angle for visibility. Measured up from 0 horizontal.
+   .. versionadded:: 3.12
+
+   High angle for visibility. Measured up from 0 horizontal, in degree.
    Values above the high pitch are marked out of range.
    Must be greater than '--low-pitch'.
    (Not supported in cumulative mode)
 
 .. option:: --low-pitch <value>
 
-   Low angle for visibility. Measured up from 0 horizontal.
+   .. versionadded:: 3.12
+
+   Low angle for visibility. Measured up from 0 horizontal, in degree.
    Cell values are clamped to be no lower than the intersection
    of the angle.  Must be less than '--high-pitch'.
    (Not supported in cumulative mode)