?? spatialindex.h
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/********************************************************************** * $Id: spatialIndex.h,v 1.4 2004/10/26 17:46:18 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. * ********************************************************************** * $Log: spatialIndex.h,v $ * Revision 1.4 2004/10/26 17:46:18 strk * Removed slash-stars in comments to remove annoying compiler warnings. * * Revision 1.3 2004/07/27 16:35:46 strk * Geometry::getEnvelopeInternal() changed to return a const Envelope *. * This should reduce object copies as once computed the envelope of a * geometry remains the same. * * Revision 1.2 2004/07/19 13:19:31 strk * Documentation fixes * * Revision 1.1 2004/07/02 13:20:42 strk * Header files moved under geos/ dir. * * Revision 1.6 2004/04/19 15:14:45 strk * Added missing virtual destructor in SpatialIndex class. * Memory leaks fixes. Const and throw specifications added. * * Revision 1.5 2004/03/25 02:23:55 ybychkov * All "index/" packages upgraded to JTS 1.4 * * Revision 1.4 2003/11/07 01:23:42 pramsey * Add standard CVS headers licence notices and copyrights to all cpp and h * files. * * **********************************************************************/#ifndef GEOS_INDEX_H#define GEOS_INDEX_H#include <memory>#include <geos/platform.h>#include <geos/geom.h>using namespace std;namespace geos {/* * The basic insertion and query operations supported by classes * implementing spatial index algorithms. * <p> * A spatial index typically provides a primary filter for range rectangle queries. A * secondary filter is required to test for exact intersection. Of course, this * secondary filter may consist of other tests besides intersection, such as * testing other kinds of spatial relationships. * */class SpatialIndex {public: virtual ~SpatialIndex() {}; /* * Adds a spatial item with an extent specified by the given Envelope * to the index */ virtual void insert(const Envelope *itemEnv, void *item)=0; /* * Queries the index for all items whose extents intersect the given search {@link Envelope} * Note that some kinds of indexes may also return objects which do not in fact * intersect the query envelope. * * @param searchEnv the envelope to query for * @return a list of the items found by the query */ virtual vector<void*>* query(const Envelope *searchEnv)=0;};}#endif
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