Provides access to members that control a RPC transform.

#### Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

#### Members

Description |
||
---|---|---|

DefineFromCoefficients | Defines a RPC transform from 90 coefficients. | |

Domains | The domains in output space. | |

ForwardXform | The forward transformation from native to GCS WGS84. | |

GetCoefficients | Gets the rational polynomial coefficients. | |

IsIdentity | Indicates if this geodata transform is an identity transform. | |

PutCoefficients | Puts the rational polynomial coefficients. | |

QueryCoefficients | Queries the rational polynomial coefficients. | |

SpatialReference | The output spatial reference after applying this transform. | |

Transform | Transforms a set of points in a given direction. | |

TransformCellsize | Transforms a cellsize in a given direction. | |

TransformExtent | Transforms an extent in a given direction. | |

TransformPoints | Transforms a point collection in a given direction |

#### Inherited Interfaces

Interfaces | Description |
---|---|

IGeodataXform | Provides access to members that control geodata transformation. |

#### CoClasses that implement IRPCXform

CoClasses and Classes | Description |
---|---|

RPCXform | A Rational Polynomial Coefficient (RPC) transform class. |

#### Remarks

The **IRPCXform** interface is used to create a **RPCXform** object.

The PPC parameters only define a reverse transformation. To create a **RPCXform** object to work with raster data, the forward transformation must also be set.