`#include <ogr_geometry.h>`

Inheritance diagram for OGRSurface:

## Public Member Functions | |

virtual double | get_Area () const =0 |

Get the area of the surface object. | |

virtual OGRErr | PointOnSurface (OGRPoint *poPoint) const =0 |

This method relates to the SFCOM ISurface::get_PointOnSurface() method. |

Abstract base class for 2 dimensional objects like polygons.

double OGRSurface::get_Area | ( | ) | const` [pure virtual]` |

Get the area of the surface object.

For polygons the area is computed as the area of the outer ring less the area of all internal rings.

This method relates to the SFCOM ISurface::get_Area() method.

**Returns:**- the area of the feature in square units of the spatial reference system in use.

Implemented in OGRPolygon.

OGRErr OGRSurface::PointOnSurface | ( | OGRPoint * | poPoint |
) | const` [pure virtual]` |

This method relates to the SFCOM ISurface::get_PointOnSurface() method.

NOTE: Only implemented when GEOS included in build.

**Parameters:**-
*poPoint*point to be set with an internal point.

**Returns:**- OGRERR_NONE if it succeeds or OGRERR_FAILURE otherwise.

Implemented in OGRPolygon.

The documentation for this class was generated from the following files:

- ogr_geometry.h
- ogrsurface.cpp

Generated for GDAL by 1.7.1.