29 SDO_TIN_PKG Package (TINs)

This chapter contains descriptions of the triangulated irregular network (TIN) subprograms shown in Table 29-1.

Table 29-1 TIN Subprograms

Subprogram	Description
SDO_TIN_PKG.CLIP_TIN	Performs a clip operation on a TIN.
SDO_TIN_PKG.CREATE_TIN	Creates a TIN using the points specified in the `inptable` parameter.
SDO_TIN_PKG.DROP_DEPENDENCIES	Drops the dependencies between a TIN block table and a specified base table and column.
SDO_TIN_PKG.INIT	Initializes a TIN.
SDO_TIN_PKG.PROJECT_ORDINATES_ONTO_TIN	Projects two-dimensional points onto a TIN, thereby determining point heights.
SDO_TIN_PKG.TO_DEM	Creates a DEM (Digital Elevation Model) GeoRaster object from a TIN.
SDO_TIN_PKG.TO_GEOMETRY	Returns a geometry object representing all or part of a TIN.

To use the subprograms in this package, you must understand the main concepts related to three-dimensional geometries, including the use of triangulated irregular networks (TINs) to model surfaces. Three-Dimensional Spatial Objects describes support for three-dimensional geometries, Modeling Surfaces describes the use of TINs to model surfaces, and TIN-Related Object Types describes data types related to TINs.