Graphics Programs Reference
In-Depth Information
geometry could change orientation across the horizontal reference line and
appear to be mirrored instead of swept through 240 degrees.
Figure17.36
Undesired sweep geometry from the angular constraint
Different angles input into the parameter result in a different undesired
behavior of the solid geometry. The purpose of this example is not to point
out shortcomings of the software but to demonstrate that one choice for
creating an angular constraint may not work for all situations.
An alternative solution for this scenario would be to use an angular
dimension of the sweep path itself instead of constraining to a reference
line.
Figure 17.37
shows the dimension parameters applied to the path of a
sweep. The angular dimension was created by selecting the path and then
activating the temporary dimension, which was then associated with the
Angle parameter.
Figure 17.37
Sweep path with parametric constraints
With the path of the sweep being defined by the angle instead of its
association to a reference line, the desired results for the solid geometry can
be achieved.
