00001 /********************************************************************** 00002 * $Id: LocationIndexOfPoint.h 2809 2009-12-06 01:05:24Z mloskot $ 00003 * 00004 * GEOS - Geometry Engine Open Source 00005 * http://geos.refractions.net 00006 * 00007 * Copyright (C) 2005-2006 Refractions Research Inc. 00008 * Copyright (C) 2001-2002 Vivid Solutions 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: linearref/LinearGeometryBuilder.java rev. 1.10 00018 * 00019 **********************************************************************/ 00020 00021 #ifndef GEOS_LINEARREF_LOCATIONINDEXOFPOINT_H 00022 #define GEOS_LINEARREF_LOCATIONINDEXOFPOINT_H 00023 00024 #include <geos/geom/Coordinate.h> 00025 #include <geos/geom/Geometry.h> 00026 #include <geos/linearref/LinearLocation.h> 00027 00028 namespace geos 00029 { 00030 namespace linearref // geos::linearref 00031 { 00032 00040 class LocationIndexOfPoint 00041 { 00042 00043 private: 00044 const geom::Geometry *linearGeom; 00045 00046 LinearLocation indexOfFromStart(const geom::Coordinate& inputPt, LinearLocation* minIndex) const; 00047 00048 public: 00049 static LinearLocation indexOf(const geom::Geometry *linearGeom, const geom::Coordinate& inputPt); 00050 00051 static LinearLocation indexOfAfter(const geom::Geometry *linearGeom, const geom::Coordinate& inputPt, LinearLocation* minIndex); 00052 00053 LocationIndexOfPoint(const geom::Geometry *linearGeom); 00054 00061 LinearLocation indexOf(const geom::Coordinate& inputPt) const; 00077 LinearLocation indexOfAfter(const geom::Coordinate& inputPt, LinearLocation* minIndex) const; 00078 }; 00079 } 00080 } 00081 #endif