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# SubgraphDepthLocater.h

    00001 /**********************************************************************
    00002  * $Id: SubgraphDepthLocater.h 3245 2011-02-23 16:46:10Z strk $
    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  * Last port: operation/buffer/SubgraphDepthLocater.java r320 (JTS-1.12)
    00017  *
    00018  **********************************************************************/
    00019
    00020 #ifndef GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
    00021 #define GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
    00022
    00023 #include <geos/export.h>
    00024
    00025 #include <vector>
    00026
    00027 #include <geos/geom/LineSegment.h> // for composition
    00028
    00029 // Forward declarations
    00030 namespace geos {
    00031         namespace geom {
    00032                 class Coordinate;
    00033         }
    00034         namespace geomgraph {
    00035                 class DirectedEdge;
    00036         }
    00037         namespace operation {
    00038                 namespace buffer {
    00039                         class BufferSubgraph;
    00040                         class DepthSegment;
    00041                 }
    00042         }
    00043 }
    00044
    00045 namespace geos {
    00046 namespace operation { // geos.operation
    00047 namespace buffer { // geos.operation.buffer
    00048
    00060 class GEOS_DLL SubgraphDepthLocater {
    00061
    00062 public:
    00063
    00064         SubgraphDepthLocater(std::vector<BufferSubgraph*> *newSubgraphs)
    00065                 :
    00066                 subgraphs(newSubgraphs)
    00067         {}
    00068
    00069         ~SubgraphDepthLocater() {}
    00070
    00071         int getDepth(const geom::Coordinate &p);
    00072
    00073 private:
    00074
    00075         std::vector<BufferSubgraph*> *subgraphs;
    00076
    00077         geom::LineSegment seg;
    00078
    00087         void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
    00088                         std::vector<DepthSegment*>& stabbedSegments);
    00089
    00099         void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
    00100                         std::vector<geomgraph::DirectedEdge*> *dirEdges,
    00101                         std::vector<DepthSegment*>& stabbedSegments);
    00102
    00112         void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
    00113                         geomgraph::DirectedEdge *dirEdge,
    00114                         std::vector<DepthSegment*>& stabbedSegments);
    00115
    00116 };
    00117
    00118
    00119 } // namespace geos::operation::buffer
    00120 } // namespace geos::operation
    00121 } // namespace geos
    00122
    00123 #endif // ndef GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
    00124
    00125 /**********************************************************************
    00126  * $Log$
    00127  * Revision 1.2  2006/03/15 15:50:11  strk
    00128  * const correctness, cleanups
    00129  *
    00130  * Revision 1.1  2006/03/14 00:19:40  strk
    00131  * opBuffer.h split, streamlined headers in some (not all) files in operation/buffer/
    00132  *
    00133  **********************************************************************/
    00134