After having understood how the lamp setup works and some dificults with the basic leg setup, I had no problems implementing the other three leg setups. The technique is the same for all four setups, the goal is different. Here you get a feeling of what can be done with constraints, and also how you have to change the constraints for different tasks and models (i.e.: human, bird, ballerina).

I compiled a little animation test with the 12.8 setup. It is a female leg jumping a short way into air. Notice, that I used bone5 to lift the foot when the leg had moved high enough, but that I used only bone8 to bring the foot back to ground. Also interesting are bone6 and bone7 (yellow). They are used to control the posing of the foot during the take off and the landing (also in mid-air).

 Download avi (360 kb) of the jumping leg
 

 Download the project file (rename it to *.prj) with the four leg setups
 

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