geography example for st_covers

git-svn-id: http://svn.osgeo.org/postgis/trunk@5628 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/reference_measure.xml b/doc/reference_measure.xml
index 7218071f6565490d55e3c5a689166189430a543f..8a5a1465db5c2f1dec874cce8c7e19c1fd740f76 100644 (file)
--- a/doc/reference_measure.xml
+++ b/doc/reference_measure.xml
@@ -727,7 +727,14 @@ FROM (SELECT ST_Buffer(ST_GeomFromText('POINT(1 2)'), 10) As smallc,
 (1 row)        </programlisting>
                <para>Geeography Example</para>
                <programlisting>
-
+-- a point with a 300 meter buffer compared to a point, a point and its 10 meter buffer
+SELECT ST_Covers(geog_poly, geog_pt) As poly_covers_pt, ST_Covers(ST_Buffer(geog_pt,10), geog_pt) As buff_10m_covers_cent
+       FROM (SELECT ST_Buffer(ST_GeogFromText('SRID=4326;POINT(-99.327 31.4821)'), 300) As geog_poly,
+                               ST_GeogFromText('SRID=4326;POINT(-99.33 31.483)') As geog_pt ) As foo;
+                               
+ poly_covers_pt | buff_10m_covers_cent
+----------------+------------------
+ f              | t
                </programlisting>
          </refsection>