GEOS  3.6.2
EdgeEndBuilder.h
00001 /**********************************************************************
00002  *
00003  * GEOS - Geometry Engine Open Source
00004  * http://geos.osgeo.org
00005  *
00006  * Copyright (C) 2006 Refractions Research Inc.
00007  *
00008  * This is free software; you can redistribute and/or modify it under
00009  * the terms of the GNU Lesser General Public Licence as published
00010  * by the Free Software Foundation. 
00011  * See the COPYING file for more information.
00012  *
00013  **********************************************************************
00014  *
00015  * Last port: operation/relate/EdgeEndBuilder.java rev. 1.12 (JTS-1.10)
00016  *
00017  **********************************************************************/
00018 
00019 #ifndef GEOS_OP_RELATE_EDGEENDBUILDER_H
00020 #define GEOS_OP_RELATE_EDGEENDBUILDER_H
00021 
00022 #include <geos/export.h>
00023 
00024 #include <vector>
00025 
00026 // Forward declarations
00027 namespace geos {
00028         namespace geom {
00029                 class IntersectionMatrix;
00030                 class Coordinate;
00031         }
00032         namespace geomgraph {
00033                 class Edge;
00034                 class EdgeIntersection;
00035                 class EdgeEnd;
00036         }
00037 }
00038 
00039 
00040 namespace geos {
00041 namespace operation { // geos::operation
00042 namespace relate { // geos::operation::relate
00043 
00048 class GEOS_DLL EdgeEndBuilder {
00049 public:
00050         EdgeEndBuilder() {}
00051 
00052         std::vector<geomgraph::EdgeEnd*> *computeEdgeEnds(std::vector<geomgraph::Edge*> *edges);
00053         void computeEdgeEnds(geomgraph::Edge *edge,std::vector<geomgraph::EdgeEnd*> *l);
00054 
00055 protected:
00056 
00057         void createEdgeEndForPrev(geomgraph::Edge *edge,
00058                         std::vector<geomgraph::EdgeEnd*> *l,
00059                         geomgraph::EdgeIntersection *eiCurr,
00060                         geomgraph::EdgeIntersection *eiPrev);
00061 
00062         void createEdgeEndForNext(geomgraph::Edge *edge,
00063                         std::vector<geomgraph::EdgeEnd*> *l,
00064                         geomgraph::EdgeIntersection *eiCurr,
00065                         geomgraph::EdgeIntersection *eiNext);
00066 };
00067 
00068 } // namespace geos:operation:relate
00069 } // namespace geos:operation
00070 } // namespace geos
00071 
00072 #endif // GEOS_OP_RELATE_EDGEENDBUILDER_H