65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/**********************************************************************
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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 <iostream> // for ostream
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namespace geos {
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namespace geom { // geos::geom
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/** \brief
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* Constants representing the location of a point relative to a geometry.
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*
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* They can also be thought of as the row or column index of a DE-9IM matrix.
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* For a description of the DE-9IM, see the
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* [OpenGIS Simple Features Specification for SQL](http://www.opengis.org/techno/specs.htm").
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*/
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enum class Location : char {
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/**
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* Used for uninitialized location values.
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*/
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NONE = (char)(-1), // Instead of NULL
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/**
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* DE-9IM row index of the interior of the first geometry and
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* column index of the interior of the second geometry.
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* Location value for the interior of a geometry.
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*/
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INTERIOR = 0,
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/**
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* DE-9IM row index of the boundary of the first geometry and
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* column index of the boundary of the second geometry.
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* Location value for the boundary of a geometry.
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*/
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BOUNDARY = 1,
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/**
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* DE-9IM row index of the exterior of the first geometry and
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* column index of the exterior of the second geometry.
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* Location value for the exterior of a geometry.
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*/
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EXTERIOR = 2
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};
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GEOS_DLL std::ostream& operator<<(std::ostream& os, const Location& loc);
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} // namespace geos::geom
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} // namespace geos
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