80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
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/**********************************************************************
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*
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* GEOS - Geometry Engine Open Source
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* http://geos.osgeo.org
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*
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* Copyright (C) 2006 Refractions Research Inc.
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*
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* This is free software; you can redistribute and/or modify it under
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* the terms of the GNU Lesser General Public Licence as published
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* by the Free Software Foundation.
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* See the COPYING file for more information.
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*
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**********************************************************************/
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#pragma once
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#include <geos/export.h>
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#include <vector>
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#include <iostream>
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// Forward declarations
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namespace geos {
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namespace noding {
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class SegmentString;
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}
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}
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namespace geos {
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namespace noding { // geos.noding
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/** \brief
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* Computes all intersections between segments in a set of SegmentString.
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*
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* Intersections found are represented as [SegmentNodes](@ref SegmentNode) and
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* added to the [SegmentStrings](@ref SegmentString) in which they occur.
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* As a final step in the noding a new set of segment strings split
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* at the nodes may be returned.
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*
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* Last port: noding/Noder.java rev. 1.8 (JTS-1.7)
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*
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* TODO: this was really an interface, we should avoid making it a Base class
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*
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*/
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class GEOS_DLL Noder {
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public:
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/** \brief
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* Computes the noding for a collection of [SegmentStrings](@ref SegmentString).
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*
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* Some Noders may add all these nodes to the input SegmentStrings;
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* others may only add some or none at all.
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*
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* @param segStrings a collection of {@link SegmentString}s to node
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* The caller remains responsible for releasing the memory
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* associated with the container and its elements.
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*/
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virtual void computeNodes(std::vector<SegmentString*>* segStrings) = 0;
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/** \brief
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* Returns a collection of fully noded [SegmentStrings](@ref SegmentString).
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* The SegmentStrings have the same context as their parent.
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*
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* @return a newly allocated std::vector of newly allocated
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* SegmentStrings (copies of input, if needs be).
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* Caller is responsible to delete container and elements.
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*/
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virtual std::vector<SegmentString*>* getNodedSubstrings() const = 0;
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virtual
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~Noder() {}
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protected:
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Noder() {}
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};
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} // namespace geos.noding
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} // namespace geos
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