lib/postgis_functions/point.rb in nofxx-postgis_adapter-0.1.7 vs lib/postgis_functions/point.rb in nofxx-postgis_adapter-0.1.8

@@ -7,23 +7,10 @@
   #
   #
   module PointFunctions
 
     #
-    # True if the geometries are within the specified distance of one another.
-    # The distance is specified in units defined by the spatial reference system
-    # of the geometries. For this function to make sense, the source geometries
-    # must both be of the same coorindate projection, having the same SRID.
-    #
-    # Returns boolean ST_DWithin(geometry g1, geometry g2, double precision distance);
-    #
-    def d_within?(other, margin=0.1)
-      postgis_calculate(:dwithin, [self, other], margin)
-    end
-    alias_method "in_bounds?", "d_within?"
-
-    #
     # Returns a float between 0 and 1 representing the location of the closest point
     # on LineString to the given Point, as a fraction of total 2d line length.
     #
     # You can use the returned location to extract a Point (ST_Line_Interpolate_Point)
     # or a substring (ST_Line_Substring).
@@ -31,11 +18,11 @@
     # This is useful for approximating numbers of addresses.
     #
     # Returns float (0 to 1) ST_Line_Locate_Point(geometry a_linestring, geometry a_point);
     #
     def where_on_line line
-      postgis_calculate(:line_locate_point, [line, self])
+      postgis_calculate(:line_locate_point, [line, self]).to_f
     end
 
     #
     # Linear distance in meters between two lon/lat points.
     # Uses a spherical earth and radius of 6370986 meters.
@@ -44,11 +31,11 @@
     # Only implemented for points.
     #
     # Returns Float ST_Distance_Sphere(geometry pointlonlatA, geometry pointlonlatB);
     #
     def distance_sphere_to(other)
-      dis = postgis_calculate(:distance_sphere, [self, other])
+      dis = postgis_calculate(:distance_sphere, [self, other]).to_f
     end
 
     #
     # Calculates the distance on an ellipsoid. This is useful if the
     # coordinates of the geometry are in longitude/latitude and a length is
@@ -67,11 +54,11 @@
     #   SPHEROID["IERS_2003",6378136.6,298.25642]
     #
     # Returns ST_Distance_Spheroid(geometry geomA, geometry geomB, spheroid);
     #
     def distance_spheroid_to(other, spheroid = EARTH_SPHEROID)
-      postgis_calculate(:distance_spheroid, [self, other], spheroid)
+      postgis_calculate(:distance_spheroid, [self, other], spheroid).to_f
     end
 
     #
     # The azimuth of the segment defined by the given Point geometries,
     # or NULL if the two points are coincident. Return value is in radians.
@@ -81,10 +68,10 @@
     #
     # Returns Float ST_Azimuth(geometry pointA, geometry pointB);
     #
     def azimuth other
       #TODO: return if not point/point
-      postgis_calculate(:azimuth, [self, other])
+      postgis_calculate(:azimuth, [self, other]).to_f
       rescue
         ActiveRecord::StatementInvalid
     end
 
     #
\ No newline at end of file