/usr/include/geos/operation/buffer/SubgraphDepthLocater.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: SubgraphDepthLocater.h 2559 2009-06-08 10:07:05Z strk $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* Copyright (C) 2006 Refractions Research 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: operation/buffer/SubgraphDepthLocater.java rev. 1.7 (JTS-1.10)
*
**********************************************************************/
#ifndef GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
#define GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
#include <geos/export.h>
#include <vector>
#include <geos/geom/LineSegment.h> // for composition
// Forward declarations
namespace geos {
namespace geom {
class Coordinate;
}
namespace geomgraph {
class DirectedEdge;
}
namespace operation {
namespace buffer {
class BufferSubgraph;
class DepthSegment;
}
}
}
namespace geos {
namespace operation { // geos.operation
namespace buffer { // geos.operation.buffer
/**
* \class SubgraphDepthLocater opBuffer.h geos/opBuffer.h
*
* \brief
* Locates a subgraph inside a set of subgraphs,
* in order to determine the outside depth of the subgraph.
*
* The input subgraphs are assumed to have had depths
* already calculated for their edges.
*
*/
class GEOS_DLL SubgraphDepthLocater {
public:
SubgraphDepthLocater(std::vector<BufferSubgraph*> *newSubgraphs)
:
subgraphs(newSubgraphs)
{}
~SubgraphDepthLocater() {}
int getDepth(const geom::Coordinate &p);
private:
std::vector<BufferSubgraph*> *subgraphs;
geom::LineSegment seg;
/**
* Finds all non-horizontal segments intersecting the stabbing line.
* The stabbing line is the ray to the right of stabbingRayLeftPt.
*
* @param stabbingRayLeftPt the left-hand origin of the stabbing line
* @param stabbedSegments a vector to which DepthSegments intersecting
* the stabbing line will be added.
*/
void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
std::vector<DepthSegment*>& stabbedSegments);
/**
* Finds all non-horizontal segments intersecting the stabbing line
* in the list of dirEdges.
* The stabbing line is the ray to the right of stabbingRayLeftPt.
*
* @param stabbingRayLeftPt the left-hand origin of the stabbing line
* @param stabbedSegments the current vector of DepthSegments
* intersecting the stabbing line will be added.
*/
void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
std::vector<geomgraph::DirectedEdge*> *dirEdges,
std::vector<DepthSegment*>& stabbedSegments);
/**
* Finds all non-horizontal segments intersecting the stabbing line
* in the input dirEdge.
* The stabbing line is the ray to the right of stabbingRayLeftPt.
*
* @param stabbingRayLeftPt the left-hand origin of the stabbing line
* @param stabbedSegments the current list of DepthSegments intersecting
* the stabbing line
*/
void findStabbedSegments(const geom::Coordinate &stabbingRayLeftPt,
geomgraph::DirectedEdge *dirEdge,
std::vector<DepthSegment*>& stabbedSegments);
};
} // namespace geos::operation::buffer
} // namespace geos::operation
} // namespace geos
#endif // ndef GEOS_OP_BUFFER_SUBGRAPHDEPTHLOCATER_H
/**********************************************************************
* $Log$
* Revision 1.2 2006/03/15 15:50:11 strk
* const correctness, cleanups
*
* Revision 1.1 2006/03/14 00:19:40 strk
* opBuffer.h split, streamlined headers in some (not all) files in operation/buffer/
*
**********************************************************************/
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