##
DO:4.7 PRACTICE PROBLEMS

1. Discuss the statement “Line trimming can be essential when constructing solid models”.

2. a) For the part below, describe how it would be represented with a winged edge B-Rep data structure. Draw the winged edges, then create data arrays.

b) For the model in part a) suggest how tolerances could be added to the arrays.

3. Draw a B-rep solid model representation for the box below. Vertices have been drawn, you will need to add the other data elements to complete the model.

4.