File: union

package info (click to toggle)
qgis 2.4.0-1
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 374,696 kB
  • ctags: 66,263
  • sloc: cpp: 396,139; ansic: 241,070; python: 130,609; xml: 14,884; perl: 1,290; sh: 1,287; sql: 500; yacc: 268; lex: 242; makefile: 168
file content (12 lines) | stat: -rw-r--r-- 344 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
 
<h3>union function</h3>
Returns a geometry that represents the point set union of the geometries.

<h4>Syntax</h4>
<pre>union( a, b )</pre>

<h4>Arguments</h4>
a &rarr; geometry
b &rarr; geometry

<h4>Example</h4>
<pre> geomToWKT( union( geomFromWKT( 'POINT(4 4)' ) , geomFromWKT( 'POINT(5 5)' ))  )   &rarr; returns MULTIPOINT(4 4, 5 5)</pre>