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/**********************************************************************
* $Id: MultiPolygon.cpp,v 1.23 2004/12/08 14:33:20 strk Exp $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* Copyright (C) 2001-2002 Vivid Solutions Inc.
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU Lesser General Public Licence as published
* by the Free Software Foundation.
* See the COPYING file for more information.
*
**********************************************************************/
#include <geos/geom.h>
namespace geos {
/**
* @param newPolys
* the <code>Polygon</code>s for this <code>MultiPolygon</code>,
* or <code>null</code> or an empty array to create the empty
* geometry. Elements may be empty <code>Polygon</code>s, but
* not <code>null</code>s.
* The polygons must conform to the assertions specified in the
* <A HREF="http://www.opengis.org/techno/specs.htm">
* OpenGIS Simple Features Specification for SQL
* </A>.
*
* Constructed object will take ownership of
* the vector and its elements.
*/
MultiPolygon::MultiPolygon(vector<Geometry *> *newPolys, const GeometryFactory *factory): GeometryCollection(newPolys,factory){}
MultiPolygon::~MultiPolygon(){}
int MultiPolygon::getDimension() const {
return 2;
}
int MultiPolygon::getBoundaryDimension() const {
return 1;
}
string MultiPolygon::getGeometryType() const {
return "MultiPolygon";
}
bool MultiPolygon::isSimple() const {
return true;
}
Geometry* MultiPolygon::getBoundary() const {
if (isEmpty()) {
return getFactory()->createGeometryCollection(NULL);
}
vector<Geometry *>* allRings=new vector<Geometry *>();
for (unsigned int i = 0; i < geometries->size(); i++) {
Polygon *pg=(Polygon *) (*geometries)[i];
Geometry *g=pg->getBoundary();
LineString *ls=dynamic_cast<LineString *>(g);
if ( ls )
{
allRings->push_back(ls);
}
else
{
GeometryCollection* rings=(GeometryCollection*)g;
for (int j = 0; j < rings->getNumGeometries(); j++)
{
allRings->push_back(new LineString(*(LineString*)rings->getGeometryN(j)));
}
delete g;
}
}
Geometry *ret=getFactory()->createMultiLineString(allRings);
//for (int i=0; i<allRings->size(); i++) delete (*allRings)[i];
//delete allRings;
return ret;
}
bool
MultiPolygon::equalsExact(const Geometry *other, double tolerance) const
{
if (!isEquivalentClass(other)) {
return false;
}
return GeometryCollection::equalsExact(other, tolerance);
}
GeometryTypeId
MultiPolygon::getGeometryTypeId() const {
return GEOS_MULTIPOLYGON;
}
} // namespace geos
/**********************************************************************
* $Log: MultiPolygon.cpp,v $
* Revision 1.23 2004/12/08 14:33:20 strk
* Checked inner polys getBoundary return for the single LineString case.
*
* Revision 1.22 2004/07/08 19:34:49 strk
* Mirrored JTS interface of CoordinateSequence, factory and
* default implementations.
* Added DefaultCoordinateSequenceFactory::instance() function.
*
* Revision 1.21 2004/07/06 17:58:22 strk
* Removed deprecated Geometry constructors based on PrecisionModel and
* SRID specification. Removed SimpleGeometryPrecisionReducer capability
* of changing Geometry's factory. Reverted Geometry::factory member
* to be a reference to external factory.
*
* Revision 1.20 2004/07/05 10:50:20 strk
* deep-dopy construction taken out of Geometry and implemented only
* in GeometryFactory.
* Deep-copy geometry construction takes care of cleaning up copies
* on exception.
* Implemented clone() method for CoordinateSequence
* Changed createMultiPoint(CoordinateSequence) signature to reflect
* copy semantic (by-ref instead of by-pointer).
* Cleaned up documentation.
*
* Revision 1.19 2004/07/02 13:28:26 strk
* Fixed all #include lines to reflect headers layout change.
* Added client application build tips in README.
*
**********************************************************************/
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