58 lines
1.6 KiB
C
58 lines
1.6 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) 2016 Daniel Baston
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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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*
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* Last port: precision/MinimumClearance.java (f6187ee2 JTS-1.14)
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*
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**********************************************************************/
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#pragma once
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#include <geos/geom/Geometry.h>
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#include <geos/geom/LineString.h>
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#include <geos/geom/CoordinateSequence.h>
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namespace geos {
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namespace precision {
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/// Computes the Minimum Clearance of a Geometry.
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class GEOS_DLL MinimumClearance {
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private:
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const geom::Geometry* inputGeom;
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double minClearance;
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std::unique_ptr<geom::CoordinateSequence> minClearancePts;
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void compute();
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public:
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MinimumClearance(const geom::Geometry* g);
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/**
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* Gets the Minimum Clearance distance.
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*
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* @return the value of the minimum clearance distance
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* or <tt>DBL_MAX</tt> if no Minimum Clearance distance exists
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*/
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double getDistance();
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/**
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* Gets a LineString containing two points
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* which are at the Minimum Clearance distance.
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*
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* @return the value of the minimum clearance distance
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* or <tt>LINESTRING EMPTY</tt> if no Minimum Clearance distance exists
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*/
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std::unique_ptr<geom::LineString> getLine();
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};
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}
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}
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