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97 lines
3.5 KiB
C++
97 lines
3.5 KiB
C++
/******************************************************************************
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* $Id: ogrsurface.cpp 27959 2014-11-14 18:29:21Z rouault $
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*
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* Project: OpenGIS Simple Features Reference Implementation
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* Purpose: The OGRSurface class.
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* Author: Frank Warmerdam, warmerdam@pobox.com
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*
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******************************************************************************
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* Copyright (c) 1999, Frank Warmerdam
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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****************************************************************************/
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#include "ogr_geometry.h"
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#include "ogr_p.h"
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/**
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* \fn double OGRSurface::get_Area() const;
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*
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* \brief Get the area of the surface object.
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*
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* For polygons the area is computed as the area of the outer ring less
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* the area of all internal rings.
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*
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* This method relates to the SFCOM ISurface::get_Area() method.
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*
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* @return the area of the feature in square units of the spatial reference
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* system in use.
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*/
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/**
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* \fn OGRErr OGRSurface::PointOnSurface( OGRPoint * poPoint ) const;
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*
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* \brief This method relates to the SFCOM ISurface::get_PointOnSurface() method.
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*
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* NOTE: Only implemented when GEOS included in build.
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*
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* @param poPoint point to be set with an internal point.
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*
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* @return OGRERR_NONE if it succeeds or OGRERR_FAILURE otherwise.
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*/
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/************************************************************************/
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/* CastToPolygon() */
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/************************************************************************/
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/**
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* \brief Cast to polygon
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*
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* The passed in geometry is consumed and a new one returned (or NULL in case
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* of failure)
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*
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* @param poSurface the input geometry - ownership is passed to the method.
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* @return new geometry.
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*/
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OGRPolygon* OGRSurface::CastToPolygon(OGRSurface* poSurface)
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{
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OGRSurfaceCasterToPolygon pfn = poSurface->GetCasterToPolygon();
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return pfn(poSurface);
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}
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/************************************************************************/
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/* CastToCurvePolygon() */
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/************************************************************************/
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/**
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* \brief Cast to curve polygon
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*
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* The passed in geometry is consumed and a new one returned (or NULL in case
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* of failure)
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*
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* @param poSurface the input geometry - ownership is passed to the method.
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* @return new geometry.
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*/
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OGRCurvePolygon* OGRSurface::CastToCurvePolygon(OGRSurface* poSurface)
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{
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OGRSurfaceCasterToCurvePolygon pfn = poSurface->GetCasterToCurvePolygon();
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return pfn(poSurface);
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}
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