IsSimpleOp.h

00001 /**********************************************************************
00002  * $Id: IsSimpleOp.h 1820 2006-09-06 16:54:23Z mloskot $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
00007  * Copyright (C) 2005-2006 Refractions Research Inc.
00008  * Copyright (C) 2001-2002 Vivid Solutions Inc.
00009  *
00010  * This is free software; you can redistribute and/or modify it under
00011  * the terms of the GNU Lesser General Public Licence as published
00012  * by the Free Software Foundation. 
00013  * See the COPYING file for more information.
00014  *
00015  **********************************************************************/
00016 
00017 #ifndef GEOS_OPERATION_ISSIMPLEOP_H
00018 #define GEOS_OPERATION_ISSIMPLEOP_H
00019 
00020 #include <map>
00021 
00022 // Forward declarations
00023 namespace geos {
00024         namespace geom {
00025                 class LineString;
00026                 class MultiLineString;
00027                 class MultiPoint;
00028                 class Geometry;
00029                 class Coordinate;
00030                 struct CoordinateLessThen;
00031         }
00032         namespace geomgraph {
00033                 class GeometryGraph;
00034         }
00035         namespace operation {
00036                 class EndpointInfo;
00037         }
00038 }
00039 
00040 
00041 namespace geos {
00042 namespace operation { // geos.operation
00043 
00053 class IsSimpleOp {
00054 public:
00055         IsSimpleOp();
00056         bool isSimple(const geom::LineString *geom);
00057         bool isSimple(const geom::MultiLineString *geom);
00058         bool isSimple(const geom::MultiPoint *mp);
00059         bool isSimpleLinearGeometry(const geom::Geometry *geom);
00060 private:
00061         bool hasNonEndpointIntersection(geomgraph::GeometryGraph &graph);
00062         bool hasClosedEndpointIntersection(geomgraph::GeometryGraph &graph);
00063         void addEndpoint(std::map<const geom::Coordinate*, EndpointInfo*,
00064                         geom::CoordinateLessThen>&endPoints,
00065                         const geom::Coordinate *p, bool isClosed);
00066 };
00067 
00068 } // namespace geos.operation
00069 } // namespace geos
00070 
00071 #endif
00072 
00073 /**********************************************************************
00074  * $Log$
00075  * Revision 1.2  2006/03/15 18:59:33  strk
00076  * Bug #62: 'struct' CoordinateLessThen in forward declaration
00077  *
00078  * Revision 1.1  2006/03/09 16:46:49  strk
00079  * geos::geom namespace definition, first pass at headers split
00080  *
00081  **********************************************************************/
00082 

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