Instructions / Replay module

[sjh26]

In order to allowing viewing of surgical instruction in the OR.

Basic idea: After each action, the planner saves some descriptive action name ("Bend Model Blah") and the current state of the model hierarchy, to a txt file: Bending Model Blah, BendingModelBlah.mrb (this mrml scene should contain just the hierarchy)

We want to use the .mrb format so that we can avoid having a folder with just 100 models in it. .mrb will keep it better organized

Edit: using screenshots instead, no replay module at this time

Functionality needed in Planner:

• [x] Detecting end of transform actions (cut/bend already have well defined end states)

• [x] Saving screenshots of 3d view

• [x] Menu to control screenshot grab

• [x] Creating instructions list

[sjh26]

.mrb saving is working, using code from slicer core, rewritten to remove hard references to the active slicer scene

[sjh26]

We are switching to using screen shots instead or full model sets