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IsValidOp.h
1 /**********************************************************************
2 * $Id: IsValidOp.h 3258 2011-03-02 13:13:50Z strk $
3 *
4 * GEOS - Geometry Engine Open Source
5 * http://geos.refractions.net
6 *
7 * Copyright (C) 2010 Sandro Santilli <strk@keybit.net>
8 * Copyright (C) 2005-2006 Refractions Research Inc.
9 * Copyright (C) 2001-2002 Vivid Solutions Inc.
10 *
11 * This is free software; you can redistribute and/or modify it under
12 * the terms of the GNU Lesser General Public Licence as published
13 * by the Free Software Foundation.
14 * See the COPYING file for more information.
15 *
16 **********************************************************************
17 *
18 * Last port: operation/valid/IsValidOp.java r335 (JTS-1.12)
19 *
20 **********************************************************************/
21
22 #ifndef GEOS_OP_ISVALIDOP_H
23 #define GEOS_OP_ISVALIDOP_H
24
25 #include <geos/export.h>
26
27 #include <geos/operation/valid/TopologyValidationError.h> // for inlined destructor
28
29 // Forward declarations
30 namespace geos {
31 namespace util {
32 class TopologyValidationError;
33 }
34 namespace geom {
35 class CoordinateSequence;
36 class GeometryFactory;
37 class Geometry;
38 class Point;
39 class LinearRing;
40 class LineString;
41 class Polygon;
42 class GeometryCollection;
43 class MultiPolygon;
44 class MultiLineString;
45 }
46 namespace geomgraph {
47 class DirectedEdge;
48 class EdgeIntersectionList;
49 class PlanarGraph;
50 class GeometryGraph;
51 }
52 }
53
54 namespace geos {
55 namespace operation { // geos::operation
56 namespace valid { // geos::operation::valid
57
62 class GEOS_DLL IsValidOp {
63 friend class Unload;
64 private:
66 const geom::Geometry *parentGeometry;
67
68 bool isChecked;
69
70 // CHECKME: should this really be a pointer ?
71 TopologyValidationError* validErr;
72
73 // This is the version using 'isChecked' flag
74 void checkValid();
75
76 void checkValid(const geom::Geometry *g);
77 void checkValid(const geom::Point *g);
78 void checkValid(const geom::LinearRing *g);
79 void checkValid(const geom::LineString *g);
80 void checkValid(const geom::Polygon *g);
81 void checkValid(const geom::MultiPolygon *g);
82 void checkValid(const geom::GeometryCollection *gc);
83 void checkConsistentArea(geomgraph::GeometryGraph *graph);
84
85
94 void checkNoSelfIntersectingRings(geomgraph::GeometryGraph *graph);
95
102 void checkNoSelfIntersectingRing(
103 geomgraph::EdgeIntersectionList &eiList);
104
105 void checkTooFewPoints(geomgraph::GeometryGraph *graph);
106
118 void checkHolesInShell(const geom::Polygon *p,
119 geomgraph::GeometryGraph *graph);
120
133 void checkHolesNotNested(const geom::Polygon *p,
134 geomgraph::GeometryGraph *graph);
135
150 void checkShellsNotNested(const geom::MultiPolygon *mp,
151 geomgraph::GeometryGraph *graph);
152
164 void checkShellNotNested(const geom::LinearRing *shell,
165 const geom::Polygon *p,
166 geomgraph::GeometryGraph *graph);
167
178 const geom::Coordinate *checkShellInsideHole(
179 const geom::LinearRing *shell,
180 const geom::LinearRing *hole,
181 geomgraph::GeometryGraph *graph);
182
183 void checkConnectedInteriors(geomgraph::GeometryGraph &graph);
184
185 void checkInvalidCoordinates(const geom::CoordinateSequence *cs);
186
187 void checkInvalidCoordinates(const geom::Polygon *poly);
188
189 void checkClosedRings(const geom::Polygon *poly);
190
191 void checkClosedRing(const geom::LinearRing *ring);
192
193 bool isSelfTouchingRingFormingHoleValid;
194
195 public:
202 static const geom::Coordinate *findPtNotNode(
203 const geom::CoordinateSequence *testCoords,
204 const geom::LinearRing *searchRing,
205 geomgraph::GeometryGraph *graph);
206
215 static bool isValid(const geom::Coordinate &coord);
216
223 static bool isValid(const geom::Geometry &geom);
224
225 IsValidOp(const geom::Geometry *geom)
226 :
227 parentGeometry(geom),
228 isChecked(false),
229 validErr(NULL),
230 isSelfTouchingRingFormingHoleValid(false)
231 {}
232
234 virtual ~IsValidOp() {
235 delete validErr;
236 }
237
238 bool isValid();
239
240 TopologyValidationError* getValidationError();
241
268 void setSelfTouchingRingFormingHoleValid(bool isValid)
269 {
270 isSelfTouchingRingFormingHoleValid = isValid;
271 }
272
273 };
274
275 } // namespace geos.operation.valid
276 } // namespace geos.operation
277 } // namespace geos
278
279 #endif // GEOS_OP_ISVALIDOP_H
280
281 /**********************************************************************
282 * $Log$
283 * Revision 1.2 2006/03/29 13:53:59 strk
284 * EdgeRing equipped with Invariant testing function and lots of exceptional assertions. Removed useless heap allocations, and pointers usages.
285 *
286 * Revision 1.1 2006/03/20 16:57:44 strk
287 * spatialindex.h and opValid.h headers split
288 *
289 **********************************************************************/
290