In this section we will describe these shapes. A description of the shapes and of their parameters follows.
Angles are always in degrees.
1 BOX box with faces perpendicular to the axes. This shape has 11 parameters, but only considering that the faces should be planar, only 9 are really independent. A check is performed on the user parameters and a message is printed in case of non-planar faces. Ignoring this warning may cause unpredictable effect at tracking time. If this is not the case, the system adds 360 degrees to PHI2 .