 | | Re: Unusual View matrices in LDRAW.INI
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(...) LDAO writes those entries to ldraw.ini. I'm not sure if any other programs update that section or not. The "Oblique" view is the default view for LDraw, and was also used for LDLite (I think) and L3Lab. "UpsideDown" is derived from "Oblique". (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: Unusual View matrices in LDRAW.INI
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OK now we're getting somewhere. Thanks for providing the exact mathematical representations of those numbers. Now I'm gonna have to figure out how you calculated them. :-) (I just had the computer do the work and print out the decimal (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: Unusual View matrices in LDRAW.INI
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I believe the matrix happens to produce a standard isometric view, but doesn't do so in the traditional 3D graphics way of rotation. This means that in addition to not looking right after rotation, it also doens't produce correct results when you (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: part skins (was Re: some thoughts on ldraw parts)
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(...) It's not always this easy. Some parts just cannot be constructed out of the primitives - or the scaling/transformation is just too difficult to figure out. Examples are those with complex curves (like the wizard's hat), or complex (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: Unusual View matrices in LDRAW.INI
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(...) I don't know their origin, but you're right, there's a shear component in them. Here's what a matrix decomposition shows: (...) Scale : (1.5, 0.942809, 1.41421, 0) Rotate : (0.321751, 0.729728, 0.463648, 0) Translate : (0, 0, 0, 0) Shear : (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: part skins (was Re: some thoughts on ldraw parts)
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(...) You are correct on both points. The primary value of the tool at this point is that it removes the tedium of defining polygons to connect vertices. It's a start! (...) Your edge-detection suggestion is certainly the ideal, but would get a bit (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: More tips for L3P
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(...) Move L3P.exe to a different directory, for instance C:\Pov, and change the path reference in the last line of L3P.bat accordingly. This way you can still use way the DOS-window openened with the shortcut for L3P for running Ldraw.exe also. (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: part skins (was Re: some thoughts on ldraw parts)
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(...) Cool beans! (...) Define "feed" in this context... an ordered vertex list? That's still hard to do, what is needed is an app that lets me create these regions superimposed on a bitmap. (...) Er, ah, kind of like that. (...) I think this is an (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: Another license draft
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Sorry it's taken me so long to get back to this -- I've been too busy to really dig into it. Overall, I think this is a decent *redistribution* license. It does not address: 1. The agreement(s) between the contributors and ldraw.org. 2. The fact (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: More descriptions
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(...) Thanks for pointing this out. I can't check into this right now -- I'm wondering if there's some obscure reason behind this (besides me not being careful) -- but I will delve into the matter ASAP. Steve (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Unusual View matrices in LDRAW.INI
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Hey, does anybody out there know the origin of the "Oblique", "UpsideDown", and "Natural" viewing matrices in LDRAW.INI. I'm not sure whether these came from LDAO, LDLITE, or perhaps even LDRAW? Wherever they came from, they don't seem to be pure (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: More tips for L3P
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(...) The problem is the first one you listed: L3P.bat and L3P.exe are in the same directory. C:\Ldraw\L3P.bat C:\Ldraw\L3P.exe How should I separate them so L3P.bat will be found first? --Ryan Lugnet member #517 E-mail: Ryanjf2@juno.com Amateur (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: part skins (was Re: some thoughts on ldraw parts)
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(...) Yes indeedy, and coincidentally I slung together the beginnings of such a program tonight. You feed it the outlines of the features of the printed element, along with a "color seed" inside each colored region, and it generates the triangles (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | More descriptions
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I have one more note about the descriptions: 2494P01 and 4448P01 are called "Glass for Window ..." while 2494 and 4448 are called "Window Glass ...", so they don't sort correctly. Leonardo (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: part skins (was Re: some thoughts on ldraw parts)
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(...) both (...) We were composing at the same time I think, and independently posted. Either that or its some sort of Ada resonance. (...) Continue to enforce the naming convention for decorated parts that makes it easy to derive what the base part (...) (24 years ago, 4-Oct-00, to lugnet.cad.dev)
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| | Re: Does this part exist?
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Steve Bliss skrev i meddelandet ... (...) (URL) Isaksson, Sweden BlockCAD: (2 URLs) (24 years ago, 3-Oct-00, to lugnet.cad.dev, lugnet.cad.dat.parts)
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| | Re: part skins (was Re: some thoughts on ldraw parts)
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Larry Pieniazek skrev i meddelandet ... (...) present (...) are (...) I have the beginnings of such a program, it puts the bitmap as background, and you can draw polygons (triangles and quads) on top of that. You can zoom in/out quite a bit, and it (...) (24 years ago, 2-Oct-00, to lugnet.cad.dev)
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| | Re: tubing
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(...) Try looking for lines with the following: 0 [Official|Unofficial] ... [Part|Element|Primit...art|Model] I admit, the "Official/Unofficial" flag is kludgy, but I was working with what I had... Another MPD suggestion: 0 FILEEND. This would allow (...) (24 years ago, 3-Oct-00, to lugnet.cad.dev, lugnet.cad.mlcad)
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| | Re: More tips for L3P
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(...) I've (re)tested it just now, and it should work: Possible error causes: - L3P.BAT and L3P.EXE are in the same folder/directory. When you issue the command "L3P" it finds the EXE before the BAT, and LDRAWDIR isn't set. - Saved batchfile with (...) (24 years ago, 3-Oct-00, to lugnet.cad.dev)
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| | 6216M description note
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Hi, I'm looking at the new update and I noticed that 6216M is called "Eletric Technic Motor 4.5V", but I have one of those as a 12V motor. Leonardo (24 years ago, 3-Oct-00, to lugnet.cad.dev)
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