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# IsSimpleOp.h

    00001 /**********************************************************************
    00002  * $Id: IsSimpleOp.h 2556 2009-06-06 22:22:28Z strk $
    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
    00026 #include <geos/export.h>
    00027 #include <geos/geom/Coordinate.h> // for dtor visibility by auto_ptr (compos)
    00028
    00029 #include <map>
    00030 #include <memory> // for auto_ptr
    00031
    00032 // Forward declarations
    00033 namespace geos {
    00034         namespace algorithm {
    00035                 class BoundaryNodeRule;
    00036         }
    00037         namespace geom {
    00038                 class LineString;
    00039                 class MultiLineString;
    00040                 class MultiPoint;
    00041                 class Geometry;
    00042                 struct CoordinateLessThen;
    00043         }
    00044         namespace geomgraph {
    00045                 class GeometryGraph;
    00046         }
    00047         namespace operation {
    00048                 class EndpointInfo;
    00049         }
    00050 }
    00051
    00052
    00053 namespace geos {
    00054 namespace operation { // geos.operation
    00055
    00090 class GEOS_DLL IsSimpleOp
    00091 {
    00092
    00093 public:
    00094
    00101         IsSimpleOp();
    00102
    00110         IsSimpleOp(const geom::Geometry& geom);
    00111
    00119         IsSimpleOp(const geom::Geometry& geom,
    00120                    const algorithm::BoundaryNodeRule& boundaryNodeRule);
    00121
    00127         bool isSimple();
    00128
    00139         const geom::Coordinate* getNonSimpleLocation() const
    00140         {
    00141                 return nonSimpleLocation.get();
    00142         }
    00143
    00152         bool isSimple(const geom::LineString *geom);
    00153
    00162         bool isSimple(const geom::MultiLineString *geom);
    00163
    00169         bool isSimple(const geom::MultiPoint *mp);
    00170
    00171         bool isSimpleLinearGeometry(const geom::Geometry *geom);
    00172
    00173 private:
    00174
    00181         bool hasNonEndpointIntersection(geomgraph::GeometryGraph &graph);
    00182
    00191         bool hasClosedEndpointIntersection(geomgraph::GeometryGraph &graph);
    00192
    00196         void addEndpoint(std::map<const geom::Coordinate*, EndpointInfo*,
    00197                         geom::CoordinateLessThen>&endPoints,
    00198                         const geom::Coordinate *p, bool isClosed);
    00199
    00200         bool isClosedEndpointsInInterior;
    00201
    00202         bool isSimpleMultiPoint(const geom::MultiPoint& mp);
    00203
    00204         const geom::Geometry* geom;
    00205
    00206         std::auto_ptr<geom::Coordinate> nonSimpleLocation;
    00207 };
    00208
    00209 } // namespace geos.operation
    00210 } // namespace geos
    00211
    00212 #endif
    00213
    00214 /**********************************************************************
    00215  * $Log$
    00216  * Revision 1.2  2006/03/15 18:59:33  strk
    00217  * Bug #62: 'struct' CoordinateLessThen in forward declaration
    00218  *
    00219  * Revision 1.1  2006/03/09 16:46:49  strk
    00220  * geos::geom namespace definition, first pass at headers split
    00221  *
    00222  **********************************************************************/
    00223