GeometryLister.h
/**********************************************************************
*
* GEOS - Geometry Engine Open Source
* http://geos.osgeo.org
*
* Copyright (C) 2011 Sandro Santilli <strk@kbt.io>
* Copyright (C) 2001-2002 Vivid Solutions Inc.
* Copyright (C) 2006 Refractions Research 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.
*
**********************************************************************
*
* Last port: geom/util/GeometryExtracter.java r320 (JTS-1.12)
*
**********************************************************************/
#pragma once
#include <geos/export.h>
#include <geos/geom/GeometryFilter.h>
#include <geos/geom/GeometryCollection.h>
#include <vector>
namespace geos {
namespace geom { // geos.geom
namespace util { // geos.geom.util
class GEOS_DLL GeometryLister {
public:
static void
list(const Geometry* geom, std::vector<const Geometry*>& lst)
{
if(geom->isCollection()) {
GeometryLister::Lister lister(lst);
geom->apply_ro(&lister);
}
else {
lst.push_back(geom);
}
}
private:
struct Lister : public GeometryFilter {
Lister(std::vector<const Geometry*>& p_geoms) : geoms(p_geoms) {}
std::vector<const Geometry*>& geoms;
void
filter_ro(const Geometry* geom) override
{
if(!geom->isCollection()) {
geoms.push_back(geom);
}
}
// // Declare type as noncopyable
// Lister(const Lister& other);
// Lister& operator=(const Lister& rhs);
};
};
} // namespace geos.geom.util
} // namespace geos.geom
} // namespace geos
geos::geom::GeometryFilter
Geometry classes support the concept of applying a Geometry filter to the Geometry.
Definition GeometryFilter.h:45
geos::geom::Geometry
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition Geometry.h:196
geos::geom::util::GeometryLister
Definition GeometryLister.h:36
geos::geom::util::GeometryLister::list
static void list(const Geometry *geom, std::vector< const Geometry * > &lst)
Definition GeometryLister.h:50
geos::geom::util
Provides classes that parse and modify Geometry objects.
Definition ComponentCoordinateExtracter.h:28
geos::geom
Definition Angle.h:26
geos
Basic namespace for all GEOS functionalities.
Definition geos.h:38