Index: reference.xml
===================================================================
--- reference.xml (revision 4010)
+++ reference.xml (working copy)
@@ -9713,7 +9713,7 @@
See Also
- , , ,
+ , , ,
@@ -10519,24 +10519,131 @@
Description
Returns the 2-dimensional maximum cartesian distance between two linestrings in
- projected units.
+ projected units. If g1 and g2 is the same geometry the function will return the distance between
+ the two vertices most far from eachother in that geometry.
Examples
- --ALL EXAMPLES current throw NOT YET IMPLEMENTED
+ postgis=# SELECT ST_Max_Distance('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 2 )'::geometry);
+ st_max_distance
+-----------------
+ 2
+(1 row)
See Also
-
+
+
+
+ ST_ShortestLine
+ Returns the 2-dimensional shortest line between two geometries
+
+
+
+
+
+ geometry ST_ShortestLine
+
+ geometry
+ g1
+
+ geometry
+ g2
+
+
+
+
+
+ Description
+
+ Returns the 2-dimensional shortest line between two geometries. The function will
+ only return the first shortest line if more than one, that the function finds.
+ If g1 and g2 intersects in just one point the function will return a line with both start
+ and end in that intersection-point.
+ If g1 and g2 are intersecting with more than one point the function will return a line with start
+ and end in the same point but it can be any of the intersecting points.
+ The line returned will always start in g1 and end in g2.
+ The length of the line this function returns will always be the same as st_distance returns for g1 and g2.
+
+
+
+
+
+ Examples
+
+ postgis=# SELECT astext(st_shortestline('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 2 )'::geometry));;
+ st_shortestline
+-----------------
+ "LINESTRING(0 0,1 1)"
+(1 row)
+
+
+
+ See Also
+
+
+
+
+
+
+
+ ST_LongestLine
+
+ Returns the 2-dimensional longest line points of two geometries.
+ The function will only return the first longest line if more than one, that the function finds.
+ The line returned will always start in g1 and end in g2.
+ The length of the line this function returns will always be the same as st_max_distance returns for g1 and g2.
+
+
+
+
+
+ geometry ST_LongestLine
+
+ geometry
+ g1
+
+ geometry
+ g2
+
+
+
+
+
+ Description
+
+ Returns the 2-dimensional longest line between the points of two geometries.
+
+
+
+
+
+ Examples
+
+ postgis=# SELECT astext(st_longestline('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 2 )'::geometry));;
+ st_shortestline
+-----------------
+ "LINESTRING(0 0,2 0)"
+(1 row)
+
+
+
+ See Also
+
+
+
+
+
+
ST_OrderingEquals