You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
138 lines
3.7 KiB
C++
138 lines
3.7 KiB
C++
/**********************************************************************
|
|
*
|
|
* GEOS - Geometry Engine Open Source
|
|
* http://geos.osgeo.org
|
|
*
|
|
* 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: noding/MCIndexNoder.java rev. 1.6 (JTS-1.9)
|
|
*
|
|
**********************************************************************/
|
|
|
|
#ifndef GEOS_NODING_MCINDEXNODER_H
|
|
#define GEOS_NODING_MCINDEXNODER_H
|
|
|
|
#include <geos/export.h>
|
|
|
|
#include <geos/inline.h>
|
|
|
|
#include <geos/index/chain/MonotoneChainOverlapAction.h> // for inheritance
|
|
#include <geos/noding/SinglePassNoder.h> // for inheritance
|
|
#include <geos/index/strtree/SimpleSTRtree.h> // for composition
|
|
#include <geos/util.h>
|
|
|
|
#include <vector>
|
|
#include <iostream>
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning(push)
|
|
#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
|
|
#endif
|
|
|
|
// Forward declarations
|
|
namespace geos {
|
|
namespace geom {
|
|
class LineSegment;
|
|
class Envelope;
|
|
}
|
|
namespace noding {
|
|
class SegmentString;
|
|
class SegmentIntersector;
|
|
}
|
|
}
|
|
|
|
namespace geos {
|
|
namespace noding { // geos.noding
|
|
|
|
/** \brief
|
|
* Nodes a set of SegmentString using a index based
|
|
* on [MonotoneChain](@ref index::chain::MonotoneChain)
|
|
* and a [SpatialIndex](@ref index::SpatialIndex).
|
|
*
|
|
* The [SpatialIndex](@ref index::SpatialIndex) used should be something that supports
|
|
* envelope (range) queries efficiently (such as a [Quadtree](@ref index::quadtree::Quadtree)
|
|
* or [STRtree](@ref index::strtree::STRtree)).
|
|
*
|
|
* Last port: noding/MCIndexNoder.java rev. 1.4 (JTS-1.7)
|
|
*/
|
|
class GEOS_DLL MCIndexNoder : public SinglePassNoder {
|
|
|
|
private:
|
|
std::vector<index::chain::MonotoneChain*> monoChains;
|
|
index::strtree::SimpleSTRtree index;
|
|
int idCounter;
|
|
std::vector<SegmentString*>* nodedSegStrings;
|
|
// statistics
|
|
int nOverlaps;
|
|
double overlapTolerance;
|
|
|
|
void intersectChains();
|
|
|
|
void add(SegmentString* segStr);
|
|
|
|
public:
|
|
|
|
MCIndexNoder(SegmentIntersector* nSegInt = nullptr, double p_overlapTolerance = 0.0)
|
|
:
|
|
SinglePassNoder(nSegInt),
|
|
idCounter(0),
|
|
nodedSegStrings(nullptr),
|
|
nOverlaps(0),
|
|
overlapTolerance(p_overlapTolerance)
|
|
{}
|
|
|
|
~MCIndexNoder() override;
|
|
|
|
/// \brief Return a reference to this instance's std::vector of MonotoneChains
|
|
std::vector<index::chain::MonotoneChain*>&
|
|
getMonotoneChains()
|
|
{
|
|
return monoChains;
|
|
}
|
|
|
|
index::SpatialIndex& getIndex();
|
|
|
|
std::vector<SegmentString*>* getNodedSubstrings() const override;
|
|
|
|
void computeNodes(std::vector<SegmentString*>* inputSegmentStrings) override;
|
|
|
|
class SegmentOverlapAction : public index::chain::MonotoneChainOverlapAction {
|
|
public:
|
|
SegmentOverlapAction(SegmentIntersector& newSi)
|
|
:
|
|
index::chain::MonotoneChainOverlapAction(),
|
|
si(newSi)
|
|
{}
|
|
|
|
void overlap(index::chain::MonotoneChain& mc1, std::size_t start1,
|
|
index::chain::MonotoneChain& mc2, std::size_t start2) override;
|
|
private:
|
|
SegmentIntersector& si;
|
|
|
|
// Declare type as noncopyable
|
|
SegmentOverlapAction(const SegmentOverlapAction& other) = delete;
|
|
SegmentOverlapAction& operator=(const SegmentOverlapAction& rhs) = delete;
|
|
};
|
|
|
|
};
|
|
|
|
} // namespace geos.noding
|
|
} // namespace geos
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning(pop)
|
|
#endif
|
|
|
|
#ifdef GEOS_INLINE
|
|
# include <geos/noding/MCIndexNoder.inl>
|
|
#endif
|
|
|
|
#endif // GEOS_NODING_MCINDEXNODER_H
|