/usr/include/geos/index/sweepline/SweepLineIndex.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 | /**********************************************************************
* $Id: SweepLineIndex.h 2556 2009-06-06 22:22:28Z 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.
*
**********************************************************************/
#ifndef GEOS_INDEX_SWEEPLINE_SWEEPLINEINDEX_H
#define GEOS_INDEX_SWEEPLINE_SWEEPLINEINDEX_H
#include <geos/export.h>
#include <vector>
// Forward declarations
namespace geos {
namespace index {
namespace sweepline {
class SweepLineInterval;
class SweepLineEvent;
class SweepLineOverlapAction;
}
}
}
namespace geos {
namespace index { // geos.index
namespace sweepline { // geos:index:sweepline
/** \brief
* A sweepline implements a sorted index on a set of intervals.
*
* It is used to compute all overlaps between the interval in the index.
*/
class GEOS_DLL SweepLineIndex {
public:
SweepLineIndex();
~SweepLineIndex();
void add(SweepLineInterval *sweepInt);
void computeOverlaps(SweepLineOverlapAction *action);
private:
// FIXME: make it a real vector rather then a pointer
std::vector<SweepLineEvent*> events;
bool indexBuilt;
// statistics information
int nOverlaps;
/**
* Because Delete Events have a link to their corresponding Insert event,
* it is possible to compute exactly the range of events which must be
* compared to a given Insert event object.
*/
void buildIndex();
void processOverlaps(int start, int end,
SweepLineInterval *s0,
SweepLineOverlapAction *action);
};
} // namespace geos:index:sweepline
} // namespace geos:index
} // namespace geos
#endif // GEOS_INDEX_SWEEPLINE_SWEEPLINEINDEX_H
/**********************************************************************
* $Log$
* Revision 1.1 2006/03/21 10:01:30 strk
* indexSweepline.h header split
*
**********************************************************************/
|