Programming google-test fixture for exact testing of (linear) Interporation on getDirection() is in progress . This will be the base of next CAS-8418 (high-order interporation) .
Preparatory programming, using M100 MS for unit-test data design.
CASA 5.5
Reading existing codes concerning to CAS-8418 (High-order Pointing Interporation).
Stuying mathmatical background of spline-interpolation to design unit-test MS data specification.