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# IsSimpleOp.h

    00001 /**********************************************************************
    00002  * $Id: IsSimpleOp.h 3255 2011-03-01 17:56:10Z mloskot $
    00003  *
    00004  * GEOS - Geometry Engine Open Source
    00005  * http://geos.refractions.net
    00006  *
    00007  * Copyright (C) 2009      Sandro Santilli <strk@keybit.net>
    00008  * Copyright (C) 2005-2006 Refractions Research Inc.
    00009  * Copyright (C) 2001-2002 Vivid Solutions Inc.
    00010  *
    00011  * This is free software; you can redistribute and/or modify it under
    00012  * the terms of the GNU Lesser General Public Licence as published
    00013  * by the Free Software Foundation.
    00014  * See the COPYING file for more information.
    00015  *
    00016  **********************************************************************
    00017  *
    00018  * Last port: operation/IsSimpleOp.java rev. 1.22 (JTS-1.10)
    00019  *
    00020  **********************************************************************/
    00021
    00022 #ifndef GEOS_OPERATION_ISSIMPLEOP_H
    00023 #define GEOS_OPERATION_ISSIMPLEOP_H
    00024
    00025 #include <geos/export.h>
    00026 #include <geos/geom/Coordinate.h> // for dtor visibility by auto_ptr (compos)
    00027
    00028 #include <map>
    00029 #include <memory> // for auto_ptr
    00030
    00031 #ifdef _MSC_VER
    00032 #pragma warning(push)
    00033 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
    00034 #endif
    00035
    00036 // Forward declarations
    00037 namespace geos {
    00038         namespace algorithm {
    00039                 class BoundaryNodeRule;
    00040         }
    00041         namespace geom {
    00042                 class LineString;
    00043                 class MultiLineString;
    00044                 class MultiPoint;
    00045                 class Geometry;
    00046                 struct CoordinateLessThen;
    00047         }
    00048         namespace geomgraph {
    00049                 class GeometryGraph;
    00050         }
    00051         namespace operation {
    00052                 class EndpointInfo;
    00053         }
    00054 }
    00055
    00056
    00057 namespace geos {
    00058 namespace operation { // geos.operation
    00059
    00094 class GEOS_DLL IsSimpleOp
    00095 {
    00096
    00097 public:
    00098
    00105         IsSimpleOp();
    00106
    00114         IsSimpleOp(const geom::Geometry& geom);
    00115
    00123         IsSimpleOp(const geom::Geometry& geom,
    00124                    const algorithm::BoundaryNodeRule& boundaryNodeRule);
    00125
    00131         bool isSimple();
    00132
    00143         const geom::Coordinate* getNonSimpleLocation() const
    00144         {
    00145                 return nonSimpleLocation.get();
    00146         }
    00147
    00156         bool isSimple(const geom::LineString *geom);
    00157
    00166         bool isSimple(const geom::MultiLineString *geom);
    00167
    00173         bool isSimple(const geom::MultiPoint *mp);
    00174
    00175         bool isSimpleLinearGeometry(const geom::Geometry *geom);
    00176
    00177 private:
    00178
    00185         bool hasNonEndpointIntersection(geomgraph::GeometryGraph &graph);
    00186
    00195         bool hasClosedEndpointIntersection(geomgraph::GeometryGraph &graph);
    00196
    00200         void addEndpoint(std::map<const geom::Coordinate*, EndpointInfo*,
    00201                         geom::CoordinateLessThen>&endPoints,
    00202                         const geom::Coordinate *p, bool isClosed);
    00203
    00204         bool isClosedEndpointsInInterior;
    00205
    00206         bool isSimpleMultiPoint(const geom::MultiPoint& mp);
    00207
    00208         const geom::Geometry* geom;
    00209
    00210         std::auto_ptr<geom::Coordinate> nonSimpleLocation;
    00211 };
    00212
    00213 } // namespace geos.operation
    00214 } // namespace geos
    00215
    00216 #ifdef _MSC_VER
    00217 #pragma warning(pop)
    00218 #endif
    00219
    00220 #endif
    00221
    00222 /**********************************************************************
    00223  * $Log$
    00224  * Revision 1.2  2006/03/15 18:59:33  strk
    00225  * Bug #62: 'struct' CoordinateLessThen in forward declaration
    00226  *
    00227  * Revision 1.1  2006/03/09 16:46:49  strk
    00228  * geos::geom namespace definition, first pass at headers split
    00229  *
    00230  **********************************************************************/
    00231