This command displays a parameter box containing the parameters that control the general behavior of all the commands in the TRIM menu.
These are:
Tolerance -
This defines the accuracy to which the trim curves will be computed. The smaller the tolerance value, the longer the computations will take, but the more accurate they will be. DeskArtes has built in routines to further modify this value based on the size of the surfaces being trimmed.
Force closed intersections -
This parameter controls whether the intersection and blending commands should always produce closed trim curves or not. Remember that open trim curves don't actually cut anything away from the surfaces. Use this option to force cutting.
Compute trim curves as Bézier -
This parameter allows you to compute the trim curves as Bézier curves in the parameter plane. They may then be directly used to define the blend boundaries for free-form blends, instead of having to open/close, approximate, etc. Since they are not polygons, they will not cut anything from the surface
Keep surfaces as B-splines -
This option determines whether the surfaces should automatically be converted to Bézier representation during the trim operation, or kept as B-splines.
Ask for merge when delete trim -
When deleting a set of trim curves, this option causes the trim curves of the "other" surface to be automatically deleted, too. Both surfaces trim history sets will be merged too.