 | | Re: Restart of LDA2001 Project (using LDraw models - L3P - POV)
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(...) I guess we would have to work with Lars on that. Because your app is in Delphi, I would be interested in the syntax you develop. Implementing on different platforms is not as big of a deal in my opinion. I am mostly interested in this because (...) (20 years ago, 14-Jan-05, to lugnet.cad.ray, lugnet.animation, lugnet.cad.dev)
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| | Automated Inventory Ordering through Bricklink
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Greetings all, I was discussing some time-saving MOC parts ideas and I came up with an idea for a software utility that could significantly reduce the amount of time spent digging around for loose parts. Currently, to the best of my knowledge, when (...) (20 years ago, 14-Jan-05, to lugnet.inv, lugnet.cad.dev, lugnet.cad.mlcad, lugnet.market.brickshops)
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| | Re: Very small triangle and a quad that thinks its a tri
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(...) Silly question time. Where can I download the latest versions from. My usual place (the zip files on your web site) are still dated sometime in 2001! thanks William (20 years ago, 14-Jan-05, to lugnet.cad.dev)
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| | Re: Restart of LDA2001 Project (using LDraw models - L3P - POV)
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(...) I've been thinking a lot about that. I think you can find a couple of threads here if you perform a search on "post-processing" or "post-processor". But... What if a futureversion of L3P has some new improvement and changes the syntax of the (...) (20 years ago, 14-Jan-05, to lugnet.cad.ray, lugnet.animation, lugnet.cad.dev)
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| | Re: Very small triangle and a quad that thinks its a tri
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(...) That's a small triangle! Side lengths: 0.0684 0.0671 0.0132 The reason it doesn't show in L3Lab is that you have color coded it in your file! Back in 1998 PovRay would crash if it was given a triangle with collinear vertices and a texture (...) (20 years ago, 14-Jan-05, to lugnet.cad.dev)
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| | Re: Restart of LDA2001 Project (using LDraw models - L3P - POV)
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(...) That is what I was going to do too. (...) I guess what I was thinking was exporting a file that could either be povray format, a format that l3p could convert (preserving unions, macros, etc), or a format that I would use with Anton's library (...) (20 years ago, 14-Jan-05, to lugnet.cad.ray, lugnet.animation, lugnet.cad.dev)
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| | Re: Restart of LDA2001 Project (using LDraw models - L3P - POV)
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(...) Thanks for the response. Just a qiuck reply, got to go back to work... LDA outputs both .dat files for the indiviual frames but also one master .dat that has references to the single-frame files, separated by CLEAR and STEP. L3P supports (...) (20 years ago, 13-Jan-05, to lugnet.cad.ray, lugnet.animation, lugnet.cad.dev)
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| | Re: Restart of LDA2001 Project (using LDraw models - L3P - POV)
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(...) Tore, I think I know what you could do that would meet even my needs. Here is my idea. Output one pov-ray file. Have it export valid pov-ray format using unions, macros, clocks, switches, ranges, etc. Then, with that, it will be easy to add (...) (20 years ago, 13-Jan-05, to lugnet.cad.ray, lugnet.animation, lugnet.cad.dev)
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| | LDraw.org Contributer Agreement Affirmation
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Hi all, Thanks for all the words of support regarding the LDraw.org Contributer Agreement. We've received quite a few responses but would like to wrap up this issue as quickly as possible. For those who haven't heard of the CA here's the (...) (20 years ago, 12-Jan-05, to lugnet.cad, lugnet.cad.dev, lugnet.cad.dev.org.ldraw)
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| | Re: Change to existing policy regarding the subfiling of dithered colors
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(...) many, many thx to the LSC for getting the job done so quickly :-)))) w. (URL) (20 years ago, 9-Jan-05, to lugnet.cad.dev)
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| | Re: Very small triangle and a quad that thinks its a tri
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(...) I'll send you the whole file (its not complete yet), but the values for the tri are A (0.989107, -1, 0) B (0.997785, -0.98677, 0.06652) C (0.997785, -1, 0.06652) William (20 years ago, 8-Jan-05, to lugnet.cad.dev)
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| | RE: *** SPAM *** Re: Very small triangle and a quad that thinks its a tri
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(...) Only at 5dp (ie -det/-dist of 0.00001), but then as the values are only to 5dp this is not surprising! The co-linear vertices are reported for any -det/dist values from 1 to 0.00001 William (20 years ago, 8-Jan-05, to lugnet.cad.dev)
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| | Re: Very small triangle and a quad that thinks its a tri
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(...) I think so too. William, could you please e-mail me the actual coordinates of A, B, etc., and perhaps the whole file. (...) Good question! (...) The colinearity test currently has a hardcoded threshold of 0.01. The colinearity test is carried (...) (20 years ago, 8-Jan-05, to lugnet.cad.dev)
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| | Re: Very small triangle and a quad that thinks its a tri
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(...) I'm guessing this is a limitation of the accuracy of the l3p -check, so probably ignorable. Does the -dist option affect this test too, or just the coplanar quad test? Maybe there could be another option in l3p to adjust the accuracy of the (...) (20 years ago, 8-Jan-05, to lugnet.cad.dev)
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| | Very small triangle and a quad that thinks its a tri
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Whilst working out the non-right-angled cylinder intersection sub-parts for the Boat Rigging pieces I have run into two related problems 1) I have a triangle A-B-C that is so tiny that L3P reports it as co-linear and L3Lab doesn't render it (it (...) (20 years ago, 7-Jan-05, to lugnet.cad.dev)
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| | Re: Mathematical assistance please
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(...) Hi Lars. Hey, I've got an idea. Stop adding new features (for a little while) and just release it. ;^) Pretty please with extra sugar? (...) Nifty solution, but what if someone looks down the hose and sees it's all blocked up with spheres so (...) (20 years ago, 7-Jan-05, to lugnet.cad.dev)
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| | Re: Mathematical assistance please
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(...) (snip) (...) I'll add 4-4cyls.dat, so that shouldn't hold you back. Also, in the coming version you can add primitives yourself. (...) Another way to achieve no overlap is the method I used in 30093.dat "Plant See Grass": I simply placed (...) (20 years ago, 7-Jan-05, to lugnet.cad.dev)
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| | Re: Mathematical assistance please
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(...) OK, here's my VERY LAST word on the subject: Transforming both 4-4cyls S0-S1 and vector S1-S2: Rotate about Y by beta until S0-S1 lies in the YZ plane Rotate about X by gamma until S0-S1 coincides with +Z Rotate about Z by delta until S1-S2 (...) (20 years ago, 7-Jan-05, to lugnet.cad.dev, FTX)
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| | Re: Mathematical assistance please
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(...) Ooooops, I see now I was totally barking up the wrong tree, you need to WORK OUT the alpha angle, sorry. But transforming the co-ordinate system should still work. ROSCO (20 years ago, 6-Jan-05, to lugnet.cad.dev)
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| | Re: Mathematical assistance please
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(...) Or maybe another way to look at it (got this from old lecture notes): Goal: rotate about arbitrary vector A by alpha Idea: we know how to rotate about X,Y,Z So, rotate about Y by beta until A lies in the YZ plane Then rotate about X by gamma (...) (20 years ago, 6-Jan-05, to lugnet.cad.dev)
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