LutInterpLutInterp - Look-up table interpolation method

Description:
This attribute indicates the method to be used when finding the output value of a LutMapLutMap for an input value part way between two table entries. If it is set to 0 (the default) then linear interpolation is used. Otherwise, nearest neighbour interpolation is used.

Using nearest neighbour interpolation causes AST__BAD to be returned for any point which falls outside the bounds of the table. Linear interpolation results in an extrapolated value being returned based on the two end entries in the table.

Type:
Integer.
Class Applicability:
LutMap
All LutMaps have this attribute.