SubgraphDepthLocater.h

00001 /**********************************************************************
00002  * $Id: SubgraphDepthLocater.h 1820 2006-09-06 16:54:23Z mloskot $
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 #ifndef GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
00017 #define GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
00018 
00019 #include <vector>
00020 
00021 #include <geos/geom/LineSegment.h> // for composition
00022 
00023 // Forward declarations
00024 namespace geos {
00025         namespace geom {
00026                 class Coordinate;
00027         }
00028         namespace geomgraph {
00029                 class DirectedEdge;
00030         }
00031         namespace operation {
00032                 namespace buffer {
00033                         class BufferSubgraph;
00034                         class DepthSegment;
00035                 }
00036         }
00037 }
00038 
00039 namespace geos {
00040 namespace operation { // geos.operation
00041 namespace buffer { // geos.operation.buffer
00042 
00055 class SubgraphDepthLocater {
00056 
00057 public:
00058 
00059         SubgraphDepthLocater(std::vector<BufferSubgraph*> *newSubgraphs)
00060                 :
00061                 subgraphs(newSubgraphs)
00062         {}
00063 
00064         ~SubgraphDepthLocater() {}
00065 
00066         int getDepth(const geom::Coordinate &p);
00067 
00068 private:
00069 
00070         std::vector<BufferSubgraph*> *subgraphs;
00071 
00072         geom::LineSegment seg;
00073 
00082         void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
00083                         std::vector<DepthSegment*>& stabbedSegments);
00084 
00094         void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
00095                         std::vector<geomgraph::DirectedEdge*> *dirEdges,
00096                         std::vector<DepthSegment*>& stabbedSegments);
00097 
00107         void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
00108                         geomgraph::DirectedEdge *dirEdge,
00109                         std::vector<DepthSegment*>& stabbedSegments);
00110 
00111 };
00112 
00113 
00114 } // namespace geos::operation::buffer
00115 } // namespace geos::operation
00116 } // namespace geos
00117 
00118 #endif // ndef GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
00119 
00120 /**********************************************************************
00121  * $Log$
00122  * Revision 1.2  2006/03/15 15:50:11  strk
00123  * const correctness, cleanups
00124  *
00125  * Revision 1.1  2006/03/14 00:19:40  strk
00126  * opBuffer.h split, streamlined headers in some (not all) files in operation/buffer/
00127  *
00128  **********************************************************************/
00129 

Generated on Fri Mar 27 04:53:02 2009 for GEOS by  doxygen 1.5.4