lib/postgis_functions/common.rb in postgis_adapter-0.7.2 vs lib/postgis_functions/common.rb in postgis_adapter-0.7.5

@@ -327,10 +327,13 @@
   #
   def touches? other
     postgis_calculate(:touches, [self, other])
   end
 
+  def st_collect(other=nil)
+    postgis_calculate(:collect, [self, other])
+  end
   #
   # The convex hull of a geometry represents the minimum closed geometry that
   # encloses all geometries within the set.
   #
   # It is usually used with MULTI and Geometry Collections. Although it is not
@@ -504,12 +507,12 @@
   #
   # Returns Geometry as GeoJSON
   #
   # http://geojson.org/
   #
-  def as_geo_json
-    postgis_calculate(:AsGeoJSON, self)
+  def as_geo_json(precision=15, bbox=0)
+    postgis_calculate(:AsGeoJSON, self, [precision, bbox])
   end
 
 
   #
   #
@@ -685,12 +688,22 @@
     # ST_max_distance Returns the largest distance between two line strings.
     #def max_distance other
     # #float ST_Max_Distance(geometry g1, geometry g2);
     #  postgis_calculate(:max_distance, [self, other])
     #end
-  end
 
+    #
+    # Returns a (set of) LineString(s) formed by sewing together a MULTILINESTRING.
+    #
+    # Only use with MULTILINESTRING/LINESTRINGs. If you feed a polygon or geometry collection into this function, it will return an empty GEOMETRYCOLLECTION
+    #
+    # Returns geometry ST_LineMerge(geometry amultilinestring);
+    #
+    def line_merge
+      postgis_calculate(:LineMerge, self, { :stcollect => self})
+    end
 
+  end
   #
   #
   #
   #
   # POINT