Spin/Rock Scene Submenu

   

These commands allow you to spin or rock the displayed molecules. A  spin is a constant rotation in a given direction, and a  rock is rotation that alternates between one direction and its opposite. Thus, `Spin X' rotates the system in a constant speed around the X axis and `Rock Z' rocks it around the Z axis. The speed of rotation and total rock angle are currently fixed. Available commands are:

• Spin/Rock Scene Stop Rotation 
  Halts the rotational motion of the displayed molecules, i.e. sets their spin and rock values to be zero.
• Spin/Rock Scene Spin (X, Y or Z) 
  Imparts a constant angular velocity (spin) to the molecules around the selected axis.
• Spin/Rock Scene Rock (X, Y or Z) 
  Imparts a constant angular velocity (spin) to the molecules around the selected axis. After the molecule rotates through a 180 arc, the rotation direction is reversed.