]> granicus.if.org Git - postgis/commitdiff
fix url in ST_Azimuth.
authorRegina Obe <lr@pcorp.us>
Sat, 9 Apr 2011 06:32:28 +0000 (06:32 +0000)
committerRegina Obe <lr@pcorp.us>
Sat, 9 Apr 2011 06:32:28 +0000 (06:32 +0000)
git-svn-id: http://svn.osgeo.org/postgis/trunk@7012 b70326c6-7e19-0410-871a-916f4a2858ee

doc/reference_measure.xml

index c3ac1b3c349a10effd8a20bb1bebf87b85b4de48..b68b58cbc095ccbbd82b32a44b840ab997940a30 100644 (file)
@@ -748,16 +748,16 @@ SELECT ST_Area(the_geog)/POWER(0.3048,2) As sqft_spheroid,  ST_Area(the_geog,fal
                        value is in radians. Angle is computed clockwise from down-to-up: on the clock: 12=0; 3=PI/2; 6=PI; 9=3PI/4 </para>
 
                        <para>The Azimuth is mathematical concept defined as the angle, in this case measured in radian, between a reference plane
-                               and a point</para>
+                               and a point</para>
 
                        <para>Availability: 1.1.0</para>
                        <para>Azimuth is especially useful in conjunction with ST_Translate for shifting an object along its perpendicular axis. See
-                                upgis_lineshift <ulink url="http://www.postgis.org/support/wiki/index.php?plpgsqlfunctions">Plpgsqlfunctions PostGIS wiki section</ulink> for example of this.</para>
+                                upgis_lineshift <ulink url="http://trac.osgeo.org/postgis/wiki/UsersWikiplpgsqlfunctions">Plpgsqlfunctions PostGIS wiki section</ulink> for example of this.</para>
                </refsection>
 
                <refsection>
                <title>Examples</title>
-               <para>--Azimuth in degrees </para>
+               <para>Azimuth in degrees </para>
 <programlisting>
 SELECT ST_Azimuth(ST_Point(25,45), ST_Point(75,100))/(2*pi())*360 as degAz,
        ST_Azimuth(ST_Point(75,100), ST_Point(25,45))/(2*pi())*360 As degAzrev;
@@ -775,7 +775,8 @@ SELECT ST_Azimuth(ST_Point(25,45), ST_Point(75,100))/(2*pi())*360 as degAz,
                                          <imageobject>
                                                <imagedata fileref="images/st_azimuth01.png" />
                                          </imageobject>
-                                         <caption><para>degAz is curve shown with horizontal and points</para></caption>
+                                         <caption><para>degAz is path to travel (azimuth), horizontal line (which starts at the start point and ends where we want the end point to fall)
+                                             and points (start point: 25,45 is in green)</para></caption>
                                        </mediaobject>
                                  </informalfigure>
                                </para></entry>
@@ -784,7 +785,8 @@ SELECT ST_Azimuth(ST_Point(25,45), ST_Point(75,100))/(2*pi())*360 as degAz,
                                          <imageobject>
                                                <imagedata fileref="images/st_azimuth02.png" />
                                          </imageobject>
-                                         <caption><para>degAzrev is azimuth curve shown with horizontal and points</para></caption>
+                                         <caption><para>degAzrev is azimuth curve shown, horizontal line (which starts at the start point and ends where we want the end point to fall)
+                                             and points (start point: 75,100 is in green)</para></caption>
                                        </mediaobject>
                                  </informalfigure>
                                </para></entry>