Specifications

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not do it automatically when you load the model. Running the SetInitialConditions operation produces a
correctly assembled arm:
The arm correctly assembled at the elbow by SetInitialConditions.
Here's a more detailed explanation: The system must perform a kinematical analysis to connect the model
correctly at the joints. This requires that the model is kinematically determinate. Another way of expressing
that is that there must be the correct number of - and relationship between joints and drivers in the model.
It usually takes some iterations in the model development to get it right. During these iterations it is useful
to be able to load the model and see a picture of it, and this is why the loading simply positions the
segments where the user placed them.
Instead of simply running the SetInitialConditions operation, you can also single-step through it to see what
it does. This is done by clicking the "Step" button instead of the "Run" button.