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The "MARMOTTA-584/UserDocumentation" page has been changed by Francisco Sumba:
https://wiki.apache.org/marmotta/MARMOTTA-584/UserDocumentation?action=diff&rev1=13&rev2=14

  === Buffer ===
  This function returns a geometric object that represents all Points whose 
distance from geom1 is less than or equal to the radius measured in units. 
Calculations are in the spatial reference system of geom1.
  
+ {{{#!wiki note
+ '''Units'''
+ 
+ You can the next 
[[http://def.seegrid.csiro.au/sissvoc/ogc-def/resource?uri=http://www.opengis.net/def/uom/OGC/1.0/|units]]:
+  1. meter; 
+  2. metre; 
+  3. degree; 
+  4. radian.
+ }}}
+ 
  '''Syntax:''' ''geof:buffer(geom1, radius, units)''
  
  '''Sample Query'''
@@ -936, +946 @@

  
  === Distance ===
  Returns the shortest distance in units between any two Points in the two 
geometric objects as calculated in the spatial reference system of geom1.
+ 
+ {{{#!wiki note
+ '''Units'''
+ 
+ You can the next 
[[http://def.seegrid.csiro.au/sissvoc/ogc-def/resource?uri=http://www.opengis.net/def/uom/OGC/1.0/|units]]:
+  1. meter; 
+  2. metre; 
+  3. degree; 
+  4. radian.
+ }}}
  
  '''Syntax:''' ''geof:distance (geom1, geom2, units)''
  

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