/usr/include/geos/algorithm/ExtractLineByLocation.h is in libgeos-dev 3.2.2-3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 | /**********************************************************************
* $Id: ExtractLineByLocation.h 2809 2009-12-06 01:05:24Z mloskot $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* Copyright (C) 2005-2006 Refractions Research Inc.
* Copyright (C) 2001-2002 Vivid Solutions Inc.
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU Lesser General Public Licence as published
* by the Free Software Foundation.
* See the COPYING file for more information.
*
**********************************************************************
*
* Last port: linearref/ExtractLineByLocation.java rev. 1.10
*
**********************************************************************/
#ifndef GEOS_LINEARREF_EXTRACTLINEBYLOCATION_H
#define GEOS_LINEARREF_EXTRACTLINEBYLOCATION_H
#include <geos/geom/Coordinate.h>
#include <geos/geom/Geometry.h>
#include <geos/linearref/LinearLocation.h>
namespace geos
{
namespace linearref // geos::linearref
{
/**
* Extracts the subline of a linear {@link Geometry} between
* two {@link LinearLocation}s on the line.
*/
class ExtractLineByLocation
{
private:
const geom::Geometry *line;
geom::Geometry *reverse(const geom::Geometry *linear);
/**
* Assumes input is valid (e.g. start <= end)
*
* @param start
* @param end
* @return a linear geometry
*/
geom::LineString* computeLine(const LinearLocation& start, const LinearLocation& end);
/**
* Assumes input is valid (e.g. start <= end)
*
* @param start
* @param end
* @return a linear geometry
*/
geom::Geometry *computeLinear(const LinearLocation& start, const LinearLocation& end);
public:
/**
* Computes the subline of a {@link LineString} between
* two {@link LineStringLocation}s on the line.
* If the start location is after the end location,
* the computed geometry is reversed.
*
* @param line the line to use as the baseline
* @param start the start location
* @param end the end location
* @return the extracted subline
*/
static geom::Geometry *extract(const geom::Geometry *line, const LinearLocation& start, const LinearLocation& end);
ExtractLineByLocation(const geom::Geometry *line);
/**
* Extracts a subline of the input.
* If <code>end < start</code> the linear geometry computed will be reversed.
*
* @param start the start location
* @param end the end location
* @return a linear geometry
*/
geom::Geometry *extract(const LinearLocation& start, const LinearLocation& end);
};
}
}
#endif
|