/usr/include/geos/algorithm/LocationIndexOfLine.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.
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* $Id: LocationIndexOfLine.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/LinearGeometryBuilder.java rev. 1.10
*
**********************************************************************/
#ifndef GEOS_LINEARREF_LINEARGEOMETRYBUILDER_H
#define GEOS_LINEARREF_LINEARGEOMETRYBUILDER_H
#include <geos/geom/Coordinate.h>
#include <geos/geom/Geometry.h>
#include <geos/linearref/LinearLocation.h>
namespace geos
{
namespace linearref // geos::linearref
{
/**
* Determines the location of a subline along a linear {@link Geometry}.
* The location is reported as a pair of {@link LinearLocation}s.
* <p>
* <b>Note:</b> Currently this algorithm is not guaranteed to
* return the correct substring in some situations where
* an endpoint of the test line occurs more than once in the input line.
* (However, the common case of a ring is always handled correctly).
*/
class LocationIndexOfLine
{
/**
* MD - this algorithm has been extracted into a class
* because it is intended to validate that the subline truly is a subline,
* and also to use the internal vertex information to unambiguously locate the subline.
*/
private:
const geom::Geometry* linearGeom;
public:
/** \brief
* Determines the location of a subline along a linear {@link Geometry}.
*
* The location is reported as a pair of {@link LinearLocation}s.
*
* <b>Note:</b> Currently this algorithm is not guaranteed to
* return the correct substring in some situations where
* an endpoint of the test line occurs more than once in the input line.
* (However, the common case of a ring is always handled correctly).
*
* Caller must take of releasing with delete[]
*
*/
static LinearLocation* indicesOf(const geom::Geometry* linearGeom, const geom::Geometry* subLine);
LocationIndexOfLine(const geom::Geometry* linearGeom);
/// Caller must take of releasing with delete[]
LinearLocation* indicesOf(const geom::Geometry* subLine) const;
};
}
}
#endif
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