incomplete finish later

git-svn-id: http://svn.osgeo.org/postgis/trunk@4480 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/html/image_src/st_linecrossingdirection02.wkt b/doc/html/image_src/st_linecrossingdirection02.wkt
new file mode 100644 (file)
index 0000000..c7f03ea
--- /dev/null
+++ b/doc/html/image_src/st_linecrossingdirection02.wkt
@@ -0,0 +1,3 @@
+Style2;LINESTRING(25 169,89 114,40 70,86 43)
+Style2;GEOMETRYCOLLECTION(POINT(25 169),POLYGON((80.84 41.66,84.66 48.16,86 43,80.84 41.66)) )
+Style1-thinline;GEOMETRYCOLLECTION(LINESTRING(171 154, 20 140, 71 74, 2.99 90.16),POINT(171 154),POLYGON((153.15 48.12,156.12 60.85,161 53,153.15 48.12)) )

diff --git a/doc/reference.xml b/doc/reference.xml
index fc200f8e0e1dc557476e06a0b9308a3e2beea6d5..b38996246c1fae46e4b320de623d51333d6ddc63 100644 (file)
--- a/doc/reference.xml
+++ b/doc/reference.xml
@@ -9686,15 +9686,30 @@ WHERE ST_Crosses(roads.the_geom, highways.the_geom);</programlisting>
                                        triangle are end points. Query below. </para></caption>
                          </mediaobject>
                        </informalfigure>
-         <programlisting>SELECT ST_LineCrossingDirection(foo.line1, foo.line2) As l1_cross_l2 , ST_LineCrossingDirection(foo.line2, foo.line1) As l2_cross_l1
-FROM (SELECT ST_GeomFromText('LINESTRING(25 169,89 114,40 70,86 43)') As line1,
-ST_GeomFromText('LINESTRING(171 154,20 140,71 74,161 53)') As line2) As foo;
+<programlisting>SELECT ST_LineCrossingDirection(foo.line1, foo.line2) As l1_cross_l2 , 
+         ST_LineCrossingDirection(foo.line2, foo.line1) As l2_cross_l1
+FROM (SELECT 
+               ST_GeomFromText('LINESTRING(25 169,89 114,40 70,86 43)') As line1,
+               ST_GeomFromText('LINESTRING(171 154,20 140,71 74,161 53)') As line2 
+       ) As foo;
 
  l1_cross_l2 | l2_cross_l1
 -------------+-------------
                   3 |          -3
 </programlisting>
 <programlisting>
+SELECT ST_LineCrossingDirection(foo.line1, foo.line2) As l1_cross_l2 , 
+         ST_LineCrossingDirection(foo.line2, foo.line1) As l2_cross_l1
+FROM (SELECT 
+       ST_GeomFromText('LINESTRING(25 169,89 114,40 70,86 43)') As line1,
+       ST_GeomFromText('LINESTRING (171 154, 20 140, 71 74, 2.99 90.16)') As line2
+       ) As foo;
+
+        l1_cross_l2 | l2_cross_l1
+-------------+-------------
+           2 |          -3
+</programlisting>
+<programlisting>
 SELECT s1.gid, s2.gid, ST_LineCrossingDirection(s1.the_geom, s2.the_geom)
        FROM streets s1 CROSS JOIN streets s2 ON (s1.gid != s2.gid AND s1.the_geom &amp;&amp; s2.the_geom )
 WHERE ST_CrossingDirection(s1.the_geom, s2.the_geom) > 0;