6.6 TFM_PLAN Object Type
The object type TFM_PLAN is used is by several SDO_CS package subprograms to specify a transformation plan.
For example, to create a concatenated operation that consists of two operations specified by a parameter of type TFM_PLAN, use the SDO_CS.CREATE_CONCATENATED_OP procedure.
Oracle Spatial defines the object type TFM_PLAN as:
CREATE TYPE tfm_plan AS OBJECT ( THE_PLAN SDO_TFM_CHAIN);
The SDO_TFM_CHAIN type is defined as VARRAY(1048576) OF NUMBER
.
Within the SDO_TFM_CHAIN array:
-
The first element specifies the SRID of the source coordinate system.
-
Each pair of elements after the first element specifies an operation ID and the SRID of a target coordinate system.
Parent topic: Coordinate Systems (Spatial Reference Systems)