Rotation of Shell of a tank calculated as per API 650 gives theta, the same is implemented in nozzle (API 650) which is reflected in Error Report .

My query is Figure P-1 of API 650 considers anticlockwise rotation as negative, however I believe Caesar (Rx entered as vector in Node XX) considers clockwise rotation as negative.

Should we convert the sign of nozzle rotation from error report while feeding as a displacement vector?