Functionality

• stack pop. Will get an image from the top of the Tina stack.
• stack push. Will push the displayed image back onto the Tina stack.
• Grimson. Will fill in the zero's of a sparse image assuming differential continuity and minimum elastic surface energy.
• surface. Will generate a projection of the current image surface in the terrain Tv according to the parameters in Terrain Params, which are;

  X interval
  
  Y interval
  
  Z scale
  
  Grimson iterations
  

  It is advised that the X and Y parameters as set large initially until a good projection direction has been selected.