GEOS  3.3.6
OffsetCurveSetBuilder.h
00001 /**********************************************************************
00002  * $Id: OffsetCurveSetBuilder.h 3306 2011-04-27 14:13:45Z strk $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
00007  * Copyright (C) 2011 Sandro Santilli <strk@keybit.net>
00008  * Copyright (C) 2006 Refractions Research Inc.
00009  *
00010  * This is free software; you can redistribute and/or modify it under
00011  * the terms of the GNU Lesser General Public Licence as published
00012  * by the Free Software Foundation. 
00013  * See the COPYING file for more information.
00014  *
00015  **********************************************************************
00016  *
00017  * Last port: operation/buffer/OffsetCurveSetBuilder.java r378 (JTS-1.12)
00018  *
00019  **********************************************************************/
00020 
00021 #ifndef GEOS_OP_BUFFER_OFFSETCURVESETBUILDER_H
00022 #define GEOS_OP_BUFFER_OFFSETCURVESETBUILDER_H
00023 
00024 #include <geos/export.h>
00025 
00026 #include <vector>
00027 
00028 #ifdef _MSC_VER
00029 #pragma warning(push)
00030 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
00031 #endif
00032 
00033 // Forward declarations
00034 namespace geos {
00035         namespace geom {
00036                 class Geometry;
00037                 class CoordinateSequence;
00038                 class GeometryCollection;
00039                 class Point;
00040                 class LineString;
00041                 class LinearRing;
00042                 class Polygon;
00043         }
00044         namespace geomgraph {
00045                 class Label;
00046         }
00047         namespace noding {
00048                 class SegmentString;
00049         }
00050         namespace operation {
00051                 namespace buffer {
00052                         class OffsetCurveBuilder;
00053                 }
00054         }
00055 }
00056 
00057 namespace geos {
00058 namespace operation { // geos.operation
00059 namespace buffer { // geos.operation.buffer
00060 
00071 class GEOS_DLL OffsetCurveSetBuilder {
00072 
00073 private:
00074 
00075         // To keep track of newly-created Labels.
00076         // Labels will be relesed by object dtor
00077         std::vector<geomgraph::Label*> newLabels;
00078 
00079         const geom::Geometry& inputGeom;
00080 
00081         double distance;
00082 
00083         OffsetCurveBuilder& curveBuilder;
00084 
00088         std::vector<noding::SegmentString*> curveList;
00089 
00102         void addCurve(geom::CoordinateSequence *coord, int leftLoc,
00103                         int rightLoc);
00104 
00105         void add(const geom::Geometry& g);
00106 
00107         void addCollection(const geom::GeometryCollection *gc);
00108 
00112         void addPoint(const geom::Point *p);
00113 
00114         void addLineString(const geom::LineString *line);
00115 
00116         void addPolygon(const geom::Polygon *p);
00117 
00136         void addPolygonRing(const geom::CoordinateSequence *coord,
00137                         double offsetDistance, int side, int cwLeftLoc,
00138                         int cwRightLoc);
00139 
00149         bool isErodedCompletely(const geom::LinearRing* ringCoord,
00150       double bufferDistance);
00151 
00170         bool isTriangleErodedCompletely(const geom::CoordinateSequence *triCoords,
00171                         double bufferDistance);
00172 
00173     // Declare type as noncopyable
00174     OffsetCurveSetBuilder(const OffsetCurveSetBuilder& other);
00175     OffsetCurveSetBuilder& operator=(const OffsetCurveSetBuilder& rhs);
00176 
00177 public:
00178 
00180         OffsetCurveSetBuilder(const geom::Geometry& newInputGeom,
00181                 double newDistance, OffsetCurveBuilder& newCurveBuilder);
00182 
00184         ~OffsetCurveSetBuilder();
00185 
00195         std::vector<noding::SegmentString*>& getCurves();
00196 
00198         //
00202         void addCurves(const std::vector<geom::CoordinateSequence*>& lineList,
00203                 int leftLoc, int rightLoc);
00204 
00205 };
00206 
00207 } // namespace geos::operation::buffer
00208 } // namespace geos::operation
00209 } // namespace geos
00210 
00211 #ifdef _MSC_VER
00212 #pragma warning(pop)
00213 #endif
00214 
00215 #endif // ndef GEOS_OP_BUFFER_OFFSETCURVESETBUILDER_H
00216 
00217 /**********************************************************************
00218  * $Log$
00219  * Revision 1.2  2006/05/04 10:15:20  strk
00220  * Doxygen comments
00221  *
00222  * Revision 1.1  2006/03/14 00:19:40  strk
00223  * opBuffer.h split, streamlined headers in some (not all) files in operation/buffer/
00224  *
00225  **********************************************************************/
00226