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LineBuilder.h
1 /**********************************************************************
2 * $Id: LineBuilder.h 3255 2011-03-01 17:56:10Z mloskot $
3 *
4 * GEOS - Geometry Engine Open Source
5 * http://geos.refractions.net
6 *
7 * Copyright (C) 2006 Refractions Research Inc.
8 *
9 * This is free software; you can redistribute and/or modify it under
10 * the terms of the GNU Lesser General Public Licence as published
11 * by the Free Software Foundation.
12 * See the COPYING file for more information.
13 *
14 ***********************************************************************
15 *
16 * Last port: operation/overlay/LineBuilder.java rev. 1.15 (JTS-1.10)
17 *
18 **********************************************************************/
19
20 #ifndef GEOS_OP_OVERLAY_LINEBUILDER_H
21 #define GEOS_OP_OVERLAY_LINEBUILDER_H
22
23 #include <geos/export.h>
24
25 #include <geos/operation/overlay/OverlayOp.h> // for OverlayOp::OpCode enum
26
27 #include <vector>
28
29 #ifdef _MSC_VER
30 #pragma warning(push)
31 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
32 #endif
33
34 // Forward declarations
35 namespace geos {
36 namespace geom {
37 class GeometryFactory;
38 class CoordinateSequence;
39 class LineString;
40 }
41 namespace geomgraph {
42 class DirectedEdge;
43 class Edge;
44 }
45 namespace algorithm {
46 class PointLocator;
47 }
48 namespace operation {
49 namespace overlay {
50 class OverlayOp;
51 }
52 }
53 }
54
55 namespace geos {
56 namespace operation { // geos::operation
57 namespace overlay { // geos::operation::overlay
58
64 class GEOS_DLL LineBuilder {
65
66 public:
67
68 LineBuilder(OverlayOp *newOp,
69 const geom::GeometryFactory *newGeometryFactory,
70 algorithm::PointLocator *newPtLocator);
71
72 ~LineBuilder();
73
77 std::vector<geom::LineString*>* build(OverlayOp::OpCode opCode);
78
90 void collectLineEdge(geomgraph::DirectedEdge *de,
91 OverlayOp::OpCode opCode,
92 std::vector<geomgraph::Edge*>* edges);
93
94 private:
95 OverlayOp *op;
96 const geom::GeometryFactory *geometryFactory;
97 algorithm::PointLocator *ptLocator;
98 std::vector<geomgraph::Edge*> lineEdgesList;
99 std::vector<geom::LineString*>* resultLineList;
100 void findCoveredLineEdges();
101 void collectLines(OverlayOp::OpCode opCode);
102 void buildLines(OverlayOp::OpCode opCode);
103 void labelIsolatedLines(std::vector<geomgraph::Edge*> *edgesList);
104
115 void collectBoundaryTouchEdge(geomgraph::DirectedEdge *de,
116 OverlayOp::OpCode opCode,
117 std::vector<geomgraph::Edge*>* edges);
118
122 void labelIsolatedLine(geomgraph::Edge *e, int targetIndex);
123
124 /*
125 * If the given CoordinateSequence has mixed 3d/2d vertexes
126 * set Z for all vertexes missing it.
127 * The Z value is interpolated between 3d vertexes and copied
128 * from a 3d vertex to the end.
129 */
130 void propagateZ(geom::CoordinateSequence *cs);
131 };
132
133 } // namespace geos::operation::overlay
134 } // namespace geos::operation
135 } // namespace geos
136
137 #ifdef _MSC_VER
138 #pragma warning(pop)
139 #endif
140
141 #endif // ndef GEOS_OP_OVERLAY_LINEBUILDER_H
142
143 /**********************************************************************
144 * $Log$
145 * Revision 1.2 2006/06/05 15:36:34 strk
146 * Given OverlayOp funx code enum a name and renamed values to have a lowercase prefix. Drop all of noding headers from installed header set.
147 *
148 * Revision 1.1 2006/03/17 13:24:59 strk
149 * opOverlay.h header splitted. Reduced header inclusions in operation/overlay implementation files. ElevationMatrixFilter code moved from own file to ElevationMatrix.cpp (ideally a class-private).
150 *
151 **********************************************************************/
152