/usr/include/geos/geom/prep/PreparedPolygonContains.h is in libgeos-dev 3.2.2-3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* $Id: PreparedPolygonContains.h 2418 2009-04-29 08:15:21Z strk $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* 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/prep/PreparedPolygonContains.java rev 1.5 (JTS-1.10)
*
**********************************************************************/
#ifndef GEOS_GEOM_PREP_PREPAREDPOLYGONCONTAINS_H
#define GEOS_GEOM_PREP_PREPAREDPOLYGONCONTAINS_H
#include <geos/geom/prep/AbstractPreparedPolygonContains.h> // inherited
// forward declarations
namespace geos {
namespace geom {
class Geometry;
namespace prep {
class PreparedPolygon;
}
}
}
namespace geos {
namespace geom { // geos::geom
namespace prep { // geos::geom::prep
/**
* \brief
* Computes the <tt>contains</tt> spatial relationship predicate
* for a {@link PreparedPolygon} relative to all other {@link Geometry} classes.
*
* Uses short-circuit tests and indexing to improve performance.
*
* It is not possible to short-circuit in all cases, in particular
* in the case where the test geometry touches the polygon linework.
* In this case full topology must be computed.
*
* @author Martin Davis
*
*/
class PreparedPolygonContains : public AbstractPreparedPolygonContains
{
public:
/**
* Creates an instance of this operation.
*
* @param prepPoly the PreparedPolygon to evaluate
*/
PreparedPolygonContains(const PreparedPolygon * const prepPoly);
/**
* Tests whether this PreparedPolygon <tt>contains</tt> a given geometry.
*
* @param geom the test geometry
* @return true if the test geometry is contained
*/
bool contains(const geom::Geometry * geom)
{
return eval(geom);
}
/**
* Computes the </tt>contains</tt> predicate between a {@link PreparedPolygon}
* and a {@link Geometry}.
*
* @param prep the prepared polygon
* @param geom a test geometry
* @return true if the polygon contains the geometry
*/
static bool contains(const PreparedPolygon * const prep, const geom::Geometry * geom)
{
PreparedPolygonContains polyInt(prep);
return polyInt.contains(geom);
}
protected:
/**
* Computes the full topological <tt>contains</tt> predicate.
* Used when short-circuit tests are not conclusive.
*
* @param geom the test geometry
* @return true if this prepared polygon contains the test geometry
*/
bool fullTopologicalPredicate(const geom::Geometry * geom);
};
} // geos::geom::prep
} // geos::geom
} // geos
#endif // GEOS_GEOM_PREP_PREPAREDPOLYGONCONTAINS_H
/**********************************************************************
* $Log$
**********************************************************************/
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