virtual MgGeometry* MgGeometry::SymetricDifference

(

MgGeometry *

other

)

[virtual]

Returns a geometry that represents the point set symmetric difference of this geometry with another.

.NET Syntax

virtual MgGeometry SymetricDifference(MgGeometry other);

Java Syntax

virtual MgGeometry SymetricDifference(MgGeometry other);

PHP Syntax

virtual MgGeometry SymetricDifference(MgGeometry other);

Parameters:

other

(MgGeometry) The MgGeometry to subtract from this one.

Remarks:

As of 3.0 the resulting geometry, if it is an aggregate geometry will have its sub-geometries ordered based on the order of your operand geometries. Take note of this if your code is concerned about the order of geometries in the symmetric difference result

Returns:

An MgGeometry representing the symmetric difference.

Illustration

if (Geom1.Disjoint(Geom2) == True) then

A	B	SymDiff
Point | MultiPoint	Point | MultiPoint	MultiPoint
Point | MultiPoint	LineString | MultiLineString	Geometry Collection (MultiLineString Point+, LineString+)
Point | MultiPoint	Polygon | MultiPolygon	Geometry Collection (Point+, Polygon+)
LineString | MultiLineString	LineString | MultiLineString	MultiLineString
LineString |MultiLineString	Polygon | MultiPolygon	Geometry Collection (LineString+, Polygon+)
Polygon | MultiPolygon	Polygon | MultiPolygon	MultiPolygon

if (Geom1.Touches(Geom2) == True) then

if (Geom1.Crosses(Geom2) == True) then

if (Geom1.Within(Geom2) == True) then

if (Geom1.Overlaps(Geom2) == True) then