Subject:
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Re: New primitives?
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Newsgroups:
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lugnet.cad
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Date:
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Wed, 26 Mar 2008 21:21:47 GMT
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Viewed:
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8704 times
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In lugnet.cad, Philippe Hurbain wrote:
> > Please let me have some example where they are useful. I found during
> > authoring parts that, just for rounded parts, you would need lots of such
> > truncated primitives, but they would need to be truncated anywhere and not
> > only the way this new primitives would be. So I think this can result in
> > much, much more primitives and I think this is not useful. But I am open for
> > discussion.
>
> A few examples where I would use the 48\1-8tdisc (to use Travis naming
> suggestion):
> 58135s01 (rounded sides), 464s01, 54096, 61068
>
> For the 48\1-8tndis (less useful I agree), an example would be 3455.
>
> In many case you can stretch a bit the primitive to match the shape you want, so
> only a few usual fractions are needed. And they match the cylinders and edges
> primitives so they would make several files more compact and elegant.
>
> Philo
I think I can follow your thoughts. Have you tried that (48/1-8tdisc) already in
some items with different curvatures? If yes and you have found out that this
can also be used without dramatically mathematics (I prefer to use triangles so
I can see that the points are correct) then I will vote on that part.
If we decide yes for this, then I think we also should create the opposite part.
cu
mikeheide
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Message has 1 Reply:
 | | Re: New primitives?
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| (...) Mathematics to use 1-8tdisk is easy, divide the width by 0.707 and height by 0.293 (1-(sqrt(2)/2) to get size of the tdisk. Move the center accordingly. Yes I have used that trick several times, using regular disc/ndis primitives, inlining (...) (18 years ago, 27-Mar-08, to lugnet.cad)
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Message is in Reply To:
| | Re: New primitives?
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| (...) A few examples where I would use the 48\1-8tdisc (to use Travis naming suggestion): 58135s01 (rounded sides), 464s01, 54096, 61068 For the 48\1-8tndis (less useful I agree), an example would be 3455. In many case you can stretch a bit the (...) (19 years ago, 26-Mar-08, to lugnet.cad)
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