geos::geom::MultiPolygon Class Reference

Models a collection of Polygons. More...

#include <MultiPolygon.h>

Inheritance diagram for geos::geom::MultiPolygon:

geos::geom::GeometryCollection geos::geom::Polygonal geos::geom::Geometry geos::geom::Geometry List of all members.

Public Member Functions

Dimension::DimensionType getDimension () const
 Returns surface dimension (2).
int getBoundaryDimension () const
 Returns 1 (MultiPolygon boundary is MultiLineString).
GeometrygetBoundary () const
 Computes the boundary of this geometry.
std::string getGeometryType () const
 Return a string representation of this Geometry type.
virtual GeometryTypeId getGeometryTypeId () const
 Return an integer representation of this Geometry type.
bool isSimple () const
 Returns false if the Geometry not simple.
bool equalsExact (const Geometry *other, double tolerance=0) const
 Returns true if the two Geometrys are exactly equal, up to a specified tolerance.
Geometryclone () const

Protected Member Functions

 MultiPolygon (std::vector< Geometry * > *newPolys, const GeometryFactory *newFactory)
 Construct a MultiPolygon.
 MultiPolygon (const MultiPolygon &mp)

Friends

class GeometryFactory

Detailed Description

Models a collection of Polygons.

As per the OGC SFS specification, the Polygons in a MultiPolygon may not overlap, and may only touch at single points. This allows the topological point-set semantics to be well-defined.


Constructor & Destructor Documentation

geos::geom::MultiPolygon::MultiPolygon ( std::vector< Geometry * > *  newPolys,
const GeometryFactory newFactory 
) [protected]

Construct a MultiPolygon.

Parameters:
newPolys the Polygons for this MultiPolygon, or null or an empty array to create the empty geometry. Elements may be empty Polygons, but not nulls. The polygons must conform to the assertions specified in the OpenGIS Simple Features Specification for SQL .
Constructed object will take ownership of the vector and its elements.

Parameters:
newFactory The GeometryFactory used to create this geometry Caller must keep the factory alive for the life-time of the constructed MultiPolygon.


Member Function Documentation

Geometry* geos::geom::MultiPolygon::clone (  )  const [virtual]

Creates and returns a full copy of this GeometryCollection object. (including all coordinates contained by it).

Returns:
a clone of this instance

Reimplemented from geos::geom::GeometryCollection.

Geometry* geos::geom::MultiPolygon::getBoundary (  )  const [virtual]

Computes the boundary of this geometry.

Returns:
a lineal geometry (which may be empty)
See also:
Geometry::getBoundary

Reimplemented from geos::geom::GeometryCollection.


The documentation for this class was generated from the following file:
Generated on 10 Sep 2013 for GEOS by  doxygen 1.4.7