Work 07: Let's see how your code stacks up to the competition

Due: Monday 04/06 10:00am

GitHub link: https://github.com/mks66/cstack.git

Note: If you are working in c, I have provided a basic stack library that you can use in the 66source repository

Time to implement a relative coordinate system… system, add/modify your current parser so it has the following behavior

• push
  • Push a copy of the current top of the coordinate system (cs) stack onto the cs stack (a full copy, not just a reference to the current top… I’m looking at you python people)
• pop
  • Removes the top of the cs stack (nothing needs to be done with this data)
• move/rotate/scale
  1. create a translation/rotation/scale matrix
  2. multiply the current top of the cs stack by it
  3. The ordering of multiplication is important here. (see notes)
• box/sphere/torus
  1. add a box/sphere/torus to a temporary polygon matrix
  2. multiply it by the current top of the cs stack
  3. draw it to the screen
  4. clear the polygon matrix
• line/curve/circle
  1. add a line to a temporary edge matrix
  2. multiply it by the current top
  3. draw it to the screen (note a line is not a solid, so avoid draw_polygons)
  4. clear the edge matrix
• save
  • save the screen with the provided file name
• display
  • show the image
• Also note that the ident, apply and clear commands no longer have any use