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Subject: 
Re: Overlapping lines (type 2)
Newsgroups: 
lugnet.cad
Date: 
Tue, 2 Dec 2003 12:55:54 GMT
Viewed: 
2063 times
  
In lugnet.cad, Steve Bliss wrote:
> In lugnet.cad, Niels Karsdorp wrote:
> 
> > A question for the more experienced part authors:
> > 
> > Is it permitted to have lines (linetype 2) overlap, caused by
> > adjecent primitives (e.g. two rect or rect and box primitives)?
> 
> This isn't 'forbidden' or anything.
> 
> But, because of the way renderers calculate lines & edges, this type of arrangement
> might lead to 'edge noise' -- occasional doubling of sections of the line.
> 
> For the few number of lines involved, I'd look into just using direct lines &
> polygons, rather than rect primitives.
> 
> Steve

Another example is the motor cutout of several old train baseplates. These have
12 sides and 36 edges, but can also be created with 3 box3u2p primitives and
having overlapping 4 edges. Or should I create another box3 primitive with two
more edges missing? And what would be the name of that primitive?

Niels



Message is in Reply To:
  Re: Overlapping lines (type 2)
 
(...) This isn't 'forbidden' or anything. But, because of the way renderers calculate lines & edges, this type of arrangement might lead to 'edge noise' -- occasional doubling of sections of the line. For the few number of lines involved, I'd look (...) (23 years ago, 2-Dec-03, to lugnet.cad)

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