 | | Re: "Left" view
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(...) Hmm, maybe. But in both first- and third-angle projections, the central view/projection shows the same side of the object. In the case of MLCAD, when you choose 'front view', you are shown the front of the model. Same for top, bottom, and back (...) (19 years ago, 7-Dec-05, to lugnet.cad.mlcad, FTX)
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| | Re: "Left" view
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(...) Hello, all. I'm a new poster to this newsgroup, usually just a lurker. This discussion caught my eye and I wanted chime in. Perhaps the reason the LEFT view appears wrong is due to the orthographic projection scheme used by MLCad--First-Angle (...) (19 years ago, 7-Dec-05, to lugnet.cad.mlcad, FTX)
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| | Re: Gold Chrome via L3P
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(...) That's great news, Lars! Thanks for the suggestion, and as always thanks for the great work. Dave! (19 years ago, 7-Dec-05, to lugnet.cad.ray)
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| | Re: MOTM / SOTM Voting For December Is Now Open
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(...) I'm hesitant to use a captcha since it's just one more step in a process that's supposed to be quick and easy (i.e. it makes since to us webheads but the general user will see it as a pain-in-the-rear). I do however agree that a permissions (...) (19 years ago, 7-Dec-05, to lugnet.cad.dev.org.ldraw)
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| | Re: Is it possible to use LDView as POV-Ray previewer?
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(...) By sort first I mean I would find which vector is most-orthogonal (ie. the one whose dot protucts were smallest compared to the other two) and leave it be, then I'd perpendicularise the one whose dot-product was smallest with the first one and (...) (19 years ago, 6-Dec-05, to lugnet.cad.ray)
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| | Re: Is it possible to use LDView as POV-Ray previewer?
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(...) I'm not sure what you mean by "sort first". However, I do what you say, and make the right and up perpendicular, then use the cross product to determine the direction. POV-Ray is only pedantic when the "vista buffer" is enabled (which is true (...) (19 years ago, 6-Dec-05, to lugnet.cad.ray)
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| | Re: MOTM / SOTM Voting For December Is Now Open
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(...) POVray worked hard for those images. Shrinking them is telling it that you have no respect for its work. You never know, all future renders might turn out wrong because it is mad. ;) Tim (19 years ago, 6-Dec-05, to lugnet.cad.dev.org.ldraw, FTX)
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| | Re: MOTM / SOTM Voting For December Is Now Open
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(...) I could also email Orion a 800 x 600 version of mine.... (URL) (19 years ago, 6-Dec-05, to lugnet.cad.dev.org.ldraw, FTX)
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| | Re: OK here's the real problem! (Was: Re: Finding a rotation matrix for a triangle)
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(...) Actually, what you need to do is *skew* the 1-4edge. Literally deform it, so it stretches along the edge of the stud3 cylinder. If you turn it, it will no longer intersect the surface of the cylinder -- the edge will disappear inside the (...) (19 years ago, 6-Dec-05, to lugnet.cad, FTX)
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| | Re: Is it possible to use LDView as POV-Ray previewer?
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(...) None handy but all I'd do is sort first and then perpendicularise one and use the cross-product for the third. Probably what you do anyway. To be honest I don't see why POVray is being so pedantic about it. It's only going to be accurate (...) (19 years ago, 6-Dec-05, to lugnet.cad.ray)
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| | Re: MOTM / SOTM Voting For December Is Now Open
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(...) While I agree with both of you, we should keep in mind that Orion said that this is a postnuke problem. Since the whole site is done with postnuke, I don't think there's much he can do about it, unless there's some postnuke option to work (...) (19 years ago, 6-Dec-05, to lugnet.cad.dev.org.ldraw)
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| | Re: Is it possible to use LDView as POV-Ray previewer?
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(...) Thanks for the offer. It sounds like I can make use of parameters that Lars has already implemented if I just change my outputs slightly, so I think I'll go that route. If you've already got the code or pseudo-code lying around, I'd like to (...) (19 years ago, 6-Dec-05, to lugnet.cad.ray)
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| | Re: Is it possible to use LDView as POV-Ray previewer?
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(...) I can do that. Unless I'm badly mistaken, my existing up will work fine as a sky vector. (...) Reading between the lines of the descriptions of the various camera settings, it really looks like POV-Ray automatically generates direction, up, (...) (19 years ago, 6-Dec-05, to lugnet.cad.ray)
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| | Re: OK here's the real problem! (Was: Re: Finding a rotation matrix for a triangle) [DAT]
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(...) Take the edge line: 1 2 -30 4 10 -3.69552 0 -1.53073 0 1 0 1.53073 0 -3.69552 1-4edge.dat Put it in a separate subfile. Include that subfile with no rotation matrix. Now apply a new MLCad rotation to the subfile. Finally inline the subfile to (...) (19 years ago, 6-Dec-05, to lugnet.cad, FTX)
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| | Re: OK here's the real problem! (Was: Re: Finding a rotation matrix for a triangle)
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(...) I think my interpratation from the last time was halfway there and this explains it much better so we're definitely getting somewhere faster now :). You should be able to use the formula I gave in the last reply instead of an XYZ+angle in (...) (19 years ago, 6-Dec-05, to lugnet.cad, FTX)
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| | OK here's the real problem! (Was: Re: Finding a rotation matrix for a triangle)
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Well, I think I've tried to explain what I need to do 3-4 times already, which is where I think the language barriers have played a pretty big role... The reason I tried to cook the problem down, is to reduce confusion, but I guess that was a bad (...) (19 years ago, 6-Dec-05, to lugnet.cad, FTX)
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| | Re: Is it possible to use LDView as POV-Ray previewer?
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(...) Well, yes, but could you try generating these parameters in stead: location sky look_at angle These should be adequate to fully describe the camera. ldglite uses them (URL) I have already made a -csky option. My impression has always been that (...) (19 years ago, 6-Dec-05, to lugnet.cad.ray)
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| | Re: MOTM / SOTM Voting For December Is Now Open
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(...) Not to mention that it's trivial to bypass it if you did want to use a bot. If we need to do bot protection, we can use a captcha (similar to the way we're protecting the full installer) when votes are actually submitted. But there's no reason (...) (19 years ago, 6-Dec-05, to lugnet.cad.dev.org.ldraw)
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| | Re: Is it possible to use LDView as POV-Ray previewer?
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(...) Travis, You could orthogonalise the matrix before writing it out. It's relatively easy to make a routine that will find a 'best' rotation matrix that is perpendicular and very close to the original. That way you don't have to deal with the up, (...) (19 years ago, 6-Dec-05, to lugnet.cad.ray)
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| | Re: MOTM / SOTM Voting For December Is Now Open
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(...) Why do everyone want to force me to work sequentially?!? :-( (the SAS booking system has even worse tasking errors) I find it very hard to beleive that there is a real need to prevent me from having multiple windows open on the same site. As (...) (19 years ago, 6-Dec-05, to lugnet.cad.dev.org.ldraw)
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