rtree.h

一个非常好的GIS开源新版本

// Spatial Index Library
//
// Copyright (C) 2003 Navel Ltd.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//  Email:
//    [e-mail]

#ifndef __spatialindex_rtree_h
#define __spatialindex_rtree_h

namespace SpatialIndex
{
	namespace RTree
	{
		enum RTreeVariant
		{
			RV_LINEAR = 0x0,
			RV_QUADRATIC,
			RV_RSTAR
		};

		enum BulkLoadMethod
		{
			BLM_STR = 0x0
		};

		enum PersistenObjectIdentifier
		{
			PersistentIndex = 0x1,
			PersistentLeaf = 0x2
		};

		enum RangeQueryType
		{
			ContainmentQuery = 0x1,
			IntersectionQuery = 0x2
		};

		class Data : public IData, public Tools::ISerializable
		{
		public:
			Data(unsigned long len, byte* pData, Tools::Geometry::Region& r, long id);
			virtual ~Data();

			virtual Data* clone();
			virtual long getIdentifier() const;
			virtual void getShape(IShape** out) const;
			virtual void getData(unsigned long& len, byte** data) const;
			virtual unsigned long getByteArraySize();
			virtual void loadFromByteArray(const byte* data);
			virtual void storeToByteArray(byte** data, unsigned long& len);

			long m_id;
                        Tools::Geometry::Region m_region;
			byte* m_pData;
			unsigned long m_dataLength;
		}; // Data

#ifdef _MSC_VER
		// MSVC didn't like the difference in parameter names between declaration
		// definition
		extern ISpatialIndex* returnRTree(IStorageManager& sm, Tools::PropertySet& ps);
#else
		extern ISpatialIndex* returnRTree(IStorageManager& in0, Tools::PropertySet& in1);
#endif//_MSC_VER
		extern ISpatialIndex* createNewRTree(
			IStorageManager& sm,
			double fillFactor,
			unsigned long indexCapacity,
			unsigned long leafCapacity,
			unsigned long dimension,
			RTreeVariant rv,
			long& indexIdentifier
		);
		extern ISpatialIndex* createAndBulkLoadNewRTree(
			BulkLoadMethod m,
			IDataStream& stream,
			IStorageManager& sm,
			double fillFactor,
			unsigned long indexCapacity,
			unsigned long leafCapacity,
			unsigned long dimension,
			RTreeVariant rv,
			long& indexIdentifier
		);
		extern ISpatialIndex* loadRTree(IStorageManager& in, long indexIdentifier);
	}
}

#endif /* __spatialindex_rtree_h */