Quiz Study Guide Corrections

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• Correction to solution to problem 1a:
  
  MFR = T(1,0) * R(theta) * T(0,-3/2)
  
  i.e., the leftmost translation needs to be changed. Likewise in problem 1b.
  [One of the previous incarnations of this problem actually carried a scale transformation down the hierarchy. To clean it up, we moved the scale into the definition of the object. Unfortunately, a scale-dependent answer was still left in the solution. My apologies for not detecting this earlier.]
  
• Clarification in problem 3:
  The viewer is assumed to be looking down the +z axis for this problem, so larger z is further away. To think of this problem in terms of the lecture notes, where the viewer is looking down the -z axis, you need to reverse the comparisons (swap "<" and ">").
  
• Correction to solution to problem 4i:
  The storage is in the worst case N^2 not 2^N-1.
  

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Comments to Steve Seitz

Last modified: Wednesday, 08-Nov-2000 02:29:57 PST