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AbstractPreparedPolygonContains.h
1 /**********************************************************************
2 *
3 * GEOS - Geometry Engine Open Source
4 * http://geos.refractions.net
5 *
6 * Copyright (C) 2006 Refractions Research Inc.
7 *
8 * This is free software; you can redistribute and/or modify it under
9 * the terms of the GNU Lesser General Public Licence as published
10 * by the Free Software Foundation.
11 * See the COPYING file for more information.
12 *
13 *
14 **********************************************************************
15 *
16 * Last port: geom/prep/AbstractPreparedPolygonContains.java r388 (JTS-1.12)
17 *
18 **********************************************************************/
19
20 #ifndef GEOS_GEOM_PREP_ABSTRACTPREPAREDPOLYGONCONTAINS_H
21 #define GEOS_GEOM_PREP_ABSTRACTPREPAREDPOLYGONCONTAINS_H
22
23 #include <geos/geom/prep/PreparedPolygonPredicate.h> // inherited
24
25
26 // forward declarations
27 namespace geos {
28 namespace geom {
29 class Geometry;
30
31 namespace prep {
32 class PreparedPolygon;
33 }
34 }
35 }
36
37
38 namespace geos {
39 namespace geom { // geos::geom
40 namespace prep { // geos::geom::prep
41
65 class AbstractPreparedPolygonContains : public PreparedPolygonPredicate
66 {
67 private:
68 // information about geometric situation
69 bool hasSegmentIntersection;
70 bool hasProperIntersection;
71 bool hasNonProperIntersection;
72
73 bool isProperIntersectionImpliesNotContainedSituation( const geom::Geometry * testGeom);
74
80 bool isSingleShell( const geom::Geometry & geom);
81
82 void findAndClassifyIntersections( const geom::Geometry * geom);
83
84 protected:
91 bool requireSomePointInInterior;
92
100 bool eval( const geom::Geometry * geom);
101
109 virtual bool fullTopologicalPredicate( const geom::Geometry * geom) =0;
110
111 public:
112 AbstractPreparedPolygonContains( const PreparedPolygon * const prepPoly)
113 : PreparedPolygonPredicate( prepPoly),
114 hasSegmentIntersection( false),
115 hasProperIntersection( false),
116 hasNonProperIntersection( false),
117 requireSomePointInInterior(true)
118 { }
119
120 AbstractPreparedPolygonContains( const PreparedPolygon * const prepPoly, bool requireSomePointInInterior)
121 : PreparedPolygonPredicate( prepPoly),
122 hasSegmentIntersection( false),
123 hasProperIntersection( false),
124 hasNonProperIntersection( false),
125 requireSomePointInInterior(requireSomePointInInterior)
126 { }
127
128 virtual ~AbstractPreparedPolygonContains()
129 { }
130
131 };
132
133 } // geos::geom::prep
134 } // geos::geom
135 } // geos
136
137 #endif // GEOS_GEOM_PREP_ABSTRACTPREPAREDPOLYGONCONTAINS_H
138 /**********************************************************************
139 * $Log$
140 **********************************************************************/
141