Start and End Length hypothesis is used to build 1D mesh on geometrical edges.
A geometrical edge is divided into segments so that the first and the last segments have a specified length. Length of each but the first segment differs from length of the previous one by a constant factor. Then mesh nodes are constructed at segment ends location and 1D mesh elements are constructed on them.
To define the Average Length hypothesis:
Select this hypothesis in the Create Hypotheses dialog box click Create. The following dialog box will appear:
In this dialog box you can set:
Name of your Start and End Length hypothesis
Start and End Length of segments