AGI_TDTOW

Transform data to world coordinates

Description:

Transform a set of data coordinates into world coordinates using a transformation stored in the database. The picture identifier signifies which picture contains the required transformation structure. If this identifier is negative then the current picture is used. If no transformation structure is found then the identity transformation is used, i.e. the world coordinates equal the data coordinates.

Invocation

CALL AGI_TDTOW( PICID, NXY, DX, DY, WX, WY, STATUS )

Arguments

PICID = INTEGER (Given)
Picture identifier
NXY = INTEGER (Given)
Number of data points to transform
DX = REAL(NXY) (Given)
Array of x data coordinates
DY = REAL(NXY) (Given)
Array of y data coordinates
WX = REAL(NXY) (Returned)
Array of x world coordinates
WY = REAL(NXY) (Returned)
Array of y world coordinates
STATUS = INTEGER (Given and Returned)
The global status