DistanceToPoint.h

00001 /**********************************************************************
00002  *
00003  * GEOS - Geometry Engine Open Source
00004  * http://geos.osgeo.org
00005  *
00006  * Copyright (C) 2009  Sandro Santilli <strk@keybit.net>
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: algorithm/distance/DistanceToPoint.java 1.1 (JTS-1.9)
00016  *
00017  **********************************************************************/
00018 
00019 #ifndef GEOS_ALGORITHM_DISTANCE_DISTANCETOPOINT_H
00020 #define GEOS_ALGORITHM_DISTANCE_DISTANCETOPOINT_H
00021 
00022 #include <geos/geom/LineSegment.h> // for composition
00023 
00024 namespace geos {
00025         namespace algorithm {
00026                 namespace distance {
00027                         class PointPairDistance;
00028                 }
00029         }
00030         namespace geom {
00031                 class Geometry;
00032                 class Coordinate; 
00033                 class LineString; 
00034                 class Polygon; 
00035         }
00036 }
00037 
00038 namespace geos {
00039 namespace algorithm { // geos::algorithm
00040 namespace distance { // geos::algorithm::distance
00041 
00047 class DistanceToPoint
00048 {
00049 public:
00050 
00051         DistanceToPoint() {}
00052 
00053         static void computeDistance(const geom::Geometry& geom,
00054                                     const geom::Coordinate& pt,
00055                                     PointPairDistance& ptDist);
00056 
00057         static void computeDistance(const geom::LineString& geom,
00058                                     const geom::Coordinate& pt,
00059                                     PointPairDistance& ptDist);
00060 
00061         static void computeDistance(const geom::LineSegment& geom,
00062                                     const geom::Coordinate& pt,
00063                                     PointPairDistance& ptDist);
00064 
00065         static void computeDistance(const geom::Polygon& geom,
00066                                     const geom::Coordinate& pt,
00067                                     PointPairDistance& ptDist);
00068 
00069 };
00070 
00071 } // geos::algorithm::distance
00072 } // geos::algorithm
00073 } // geos
00074 
00075 #endif // GEOS_ALGORITHM_DISTANCE_DISTANCETOPOINT_H
00076 

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