Subject:
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Re: Lego capable CAD software for the Mac ?
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Newsgroups:
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lugnet.cad
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Date:
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Tue, 14 Dec 1999 17:05:34 GMT
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Reply-To:
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JSPROAT@IO.COMihatespam
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Viewed:
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672 times
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DaveG wrote:
> You are aware that with MacPerl you can convert old non-MPD files to QuickDraw3D
> objects and view them in SimpleText.I am in the process of adding Multi File
> support [original script by Erik Olson (olsone@interport.net)] and fixing some
> of the more obvious errors.
> Any one else interested or willing to put some time into making Mac versions?
Actually, I'm interested in getting a standard, OO Perl module for LDraw
files. I've been working on one which offers levels of abstraction for line
(partline, quadline, etc.), part, file, mpdfile, etc.
#Mmmm....
use LDraw qq( :file :algorithms );
LDraw->new()->read("mm.dat")->inline()->removeLineType("0")->write("mm.dat");
The idea is to be able to slurp in an LDraw model (or create one on-the-fly);
modify it with rotations, translations, scale, and other more complex
algorithms; and write it back to a file. Practical applications would include
two-line scripts for DAT-to-MPD, MPD-to-DAT, inlining, outlining, centering,
DAT-to-VRML (handy for those LDraw CGI scripts), etc. Right now I'm torn on
which matrix lib I will stick with; I've worked with Math::MatrixReal more,
though PDL is looking more and more favorable. I might just end up thunking
the whole matrix layer, I dunno...
My biggest problem right now is the **!@# math. (I was never great with
matrices.) Multi-part rotations come out weird, models sometimes come out
flat, etc.
Cheers,
- jsproat
--
Jeremy H. Sproat <jsproat@io.com> ~~~ http://www.io.com/~jsproat/
"Hello. My name is Jeremy, and I'm a...a brick chewer."
(in unison) "Hi, Jeremy."
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Message is in Reply To:
 | | Re: Lego capable CAD software for the Mac ?
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| (...) I am also interested in CAD for LEGO. You are aware that with MacPerl you can convert old non-MPD files to QuickDraw3D objects and view them in SimpleText.I am in the process of adding Multi File support [original script by Erik Olson (...) (25 years ago, 14-Dec-99, to lugnet.cad)
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