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# AbstractPreparedPolygonContains.h

    00001 /**********************************************************************
    00002  * $Id: AbstractPreparedPolygonContains.h 2420 2009-04-29 08:56:14Z strk $
    00003  *
    00004  * GEOS - Geometry Engine Open Source
    00005  * http://geos.refractions.net
    00006  *
    00007  * Copyright (C) 2006 Refractions Research Inc.
    00008  *
    00009  * This is free software; you can redistribute and/or modify it under
    00010  * the terms of the GNU Lesser General Public Licence as published
    00011  * by the Free Software Foundation.
    00012  * See the COPYING file for more information.
    00013  *
    00014  *
    00015  **********************************************************************
    00016  *
    00017  * Last port: geom/prep/AbstractPreparedPolygonContains.java rev 1.7 (JTS-1.10)
    00018  * (2007-12-12)
    00019  *
    00020  **********************************************************************/
    00021
    00022 #ifndef GEOS_GEOM_PREP_ABSTRACTPREPAREDPOLYGONCONTAINS_H
    00023 #define GEOS_GEOM_PREP_ABSTRACTPREPAREDPOLYGONCONTAINS_H
    00024
    00025 #include <geos/geom/prep/PreparedPolygonPredicate.h> // inherited
    00026
    00027
    00028 // forward declarations
    00029 namespace geos {
    00030         namespace geom {
    00031                 class Geometry;
    00032
    00033                 namespace prep {
    00034                         class PreparedPolygon;
    00035                 }
    00036         }
    00037 }
    00038
    00039
    00040 namespace geos {
    00041 namespace geom { // geos::geom
    00042 namespace prep { // geos::geom::prep
    00043
    00067 class AbstractPreparedPolygonContains : public PreparedPolygonPredicate
    00068 {
    00069 private:
    00070         // information about geometric situation
    00071         bool hasSegmentIntersection;
    00072         bool hasProperIntersection;
    00073         bool hasNonProperIntersection;
    00074
    00075         bool isProperIntersectionImpliesNotContainedSituation( const geom::Geometry * testGeom);
    00076
    00082         bool isSingleShell( const geom::Geometry & geom);
    00083
    00084         void findAndClassifyIntersections( const geom::Geometry * geom);
    00085
    00086 protected:
    00093         bool requireSomePointInInterior;
    00094
    00102         bool eval( const geom::Geometry * geom);
    00103
    00111         virtual bool fullTopologicalPredicate( const geom::Geometry * geom) =0;
    00112
    00113 public:
    00114         AbstractPreparedPolygonContains( const PreparedPolygon * const prepPoly)
    00115         :       PreparedPolygonPredicate( prepPoly),
    00116                 hasSegmentIntersection( false),
    00117                 hasProperIntersection( false),
    00118                 hasNonProperIntersection( false),
    00119                 requireSomePointInInterior(true)
    00120         { }
    00121
    00122         AbstractPreparedPolygonContains( const PreparedPolygon * const prepPoly, bool requireSomePointInInterior)
    00123         :       PreparedPolygonPredicate( prepPoly),
    00124                 hasSegmentIntersection( false),
    00125                 hasProperIntersection( false),
    00126                 hasNonProperIntersection( false),
    00127                 requireSomePointInInterior(requireSomePointInInterior)
    00128         { }
    00129
    00130         virtual ~AbstractPreparedPolygonContains()
    00131         { }
    00132
    00133 };
    00134
    00135 } // geos::geom::prep
    00136 } // geos::geom
    00137 } // geos
    00138
    00139 #endif // GEOS_GEOM_PREP_ABSTRACTPREPAREDPOLYGONCONTAINS_H
    00140 /**********************************************************************
    00141  * $Log$
    00142  **********************************************************************/
    00143