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Subject: 
Re: Clipping / CCW / CW / INVERT
Newsgroups: 
lugnet.cad.dev
Date: 
Fri, 8 Oct 1999 16:09:21 GMT
Reply-To: 
RUI.MARTINS@nomorespamLINK.PT
Viewed: 
448 times
  
On Fri, 8 Oct 1999, Steve Bliss wrote:

On Wed, 6 Oct 1999 18:15:40 GMT, Rui Martins <Rui.Martins@link.pt> wrote:

Follow-up note:  the more I look at this, the more I like using WINDING /
CLIPPING instead of FACE.  For reasons listed by Rui, for more flexibility,
for the ability to enable clipping without specifying the winding.

I see two possible approaches:

0 FACE [CW|CCW|DS|UNKNOWN]

or

0 WINDING [CW|CCW|UNKNOWN]
0 CLIPPING [ON|OFF|ENABLED|DISABLED|0|1|-1]

Steve

I don't need the WINDING UNKNOWN, since it's redundant with CLIPPING OFF.
When clipping is OFF you don't care the state of the winding.

I am curious, what is CLIPPING -1 ? an UNKNOWN, CLIPPING when not found
is assumed as OFF (the safe side), no UNKNOWN needed either.

Rui Martins



Message has 1 Reply:
  Re: Clipping / CCW / CW / INVERT
 
(...) I put in WINDING UNKNOWN because it explicitly states that the winding is unknown (and probably bad). This way, you can effectively disable clipping for a particular section of (unchecked) code, without having to force clipping back on at the (...) (25 years ago, 8-Oct-99, to lugnet.cad.dev)

Message is in Reply To:
  Re: Clipping / CCW / CW / INVERT
 
On Wed, 6 Oct 1999 18:15:40 GMT, Rui Martins <Rui.Martins@link.pt> wrote: Follow-up note: the more I look at this, the more I like using WINDING / CLIPPING instead of FACE. For reasons listed by Rui, for more flexibility, for the ability to enable (...) (25 years ago, 8-Oct-99, to lugnet.cad.dev)

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