Sloppy output of Quickdraw? Or do I not understand how it works

Jim Canale

Can anyone here explain to me why Quickdraw will use a series of dashed arcs to represent a hidden hole?   Why doesn't it just draw a dashed circle?  

Also, I have noticed that many times it generates multiple hidden lines, one on top of another.  I've counted  as many as 10 hidden lines, layered right on top of each other. 

Perhaps there is a way to correct this?   I've been manually "fixing" the Quickdraw output, and it can get very tedious.

Richard Webb

You can approach it from two ends. One would be to change LTSCALE to a smaller value, giving all of your, e.g., dashed lines smaller dashes. The other approach is to modify the QD-Hidden layer's line type from the default HIDDEN type to HIDDEN2, 4, or 8.

Not sure of a fix for the overlapping hidden lines.

Jim Canale

Thank you Richard.  I think no matter what, I'll still wind up tweeking the 2D views to make them more readable.   I may just submit a support request to Bricsys to find out why the duplicate hidden lines.