 | | instructions needed
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Does anybody has instructions for these models of the roborider series? (URL) help is welcome. mikeheide (18 years ago, 25-Mar-07, to lugnet.cad.dat.parts, lugnet.znap, lugnet.technic.roboriders, lugnet.technic, lugnet.technic.bionicle)
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| | Re: Underside stud groups
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Mark Kennedy schrieb: (...) I think this is not necessary. The other stud groups are created mainly for the baseplates and there are no underside studs. mikeheide (18 years ago, 25-Mar-07, to lugnet.cad.dat.parts)
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| | Underside stud groups
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Does anybody think that there should be stud groups for the undersides of plates made up of STUD4 type studs? Was wondering how much support there is for such primitives before submitting any to the tracker. (18 years ago, 24-Mar-07, to lugnet.cad.dat.parts)
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| | Re: Tyre 30.4x14 VR
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ludo soete schrieb: (...) This part is already an official part. Please download the the actual parts updates to install it on your system. cu mikeheide (18 years ago, 15-Mar-07, to lugnet.cad.dat.parts)
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| | LDraw file for wheel 55981?
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Is there an existing LDraw version of the 55981 "Wheel 30.4 x 14 with Holes on Both Sides" ((URL) I can't seem to find it in the parts tracker. On the other hand, LDD does have this wheel. Is it possible to convert LDD parts to LDraw format (not (...) (18 years ago, 14-Mar-07, to lugnet.cad.dat.parts)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) Yes, that's true, but in such cases there are generally lines separating the polygons (parts), and people expect to see those in the render. The problem we're talking about here is artifacts showing up on the faces of individual parts where (...) (18 years ago, 7-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions [DAT]
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Something else to consider is that T junctions will often appear in model files themselves between two parts as shown in this simple example. 0 Model exported from LeoCAD 0 Original name: 1 4 20.00 -24.00 30.00 1.00 0.00 0.00 0.00 1.00 0.00 0.00 (...) (18 years ago, 7-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) No there's not. I'm a physicist... not an engineer ;) Tim (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) blah, blah, blah, snip Oops, I was trying to be all ironical in a geeky math sorta way. But apparently I failed. Guess I shoulda used more winkies... Do people still use winkies? Or have they gone obsolete like ASCII art? Anyhow, sorry about (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) There is, however, such a thing as an impractical problem ;) ROSCO (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) Well actually what txt2dat does is a slightly different problem - it has a few simple closed loops and has to triangulate the complex polygons bounded by them (it uses the excellent (URL) triangle library> to do that). Renderers on the other (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) OK, I stand corrected. Technically a program can fix things a load time. However, you might be surprised at how long it takes. It's "only" O(n^2), but each iteration is slow. You have to search the current line segment against all other line (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) Well... Technically it is true. The rendering program ought to be able to scan all the points in each part and look for intersections with every edge in the part. Then break up the offensive T-joins automagically and render it perfectly. (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) Arguably it's probably the algorithms and/or numerical proccessing that are at fault. Certainly when you design scientific code algorithms they should usually be created in such a way that it minimises numerical error. Of course I don't expect (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) I'd really appreciate it if you didn't blame it on the rendering programs. There's really nothing that they can do to fix the problem. I can understand why you might feel that they are at fault, but it really isn't true. As such, you might (...) (18 years ago, 6-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) I try to minimise file size whenever possible myself and have nothing against T juctions. While the gaps can be annoying I feel that they are a fault of the rendering program rather than the parts. (18 years ago, 4-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Naming of Parts (esp. Wheels & Tires)
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El-Lutzo schrieb: (...) I am also often confused by the naming. For that I have started to have my own translation table for which wheel fits to which tyre. The problem at this point is, that there are many official parts out and I think it might (...) (18 years ago, 5-Mar-07, to lugnet.cad.dat.parts)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) Sounds reasonable to me. Any chance a T-junctions FAQ could be created on the parts tracker reference page, and the above could make it into a policy statement in the parts review FAQ? Most of my original post here could be used as the FAQ, (...) (18 years ago, 5-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) T-junctions are a quality issue in part files. I don't think they should be strictly forbidden (that is, having T-junctions is not a reason to hold a part file from official release). Generally, I wouldn't even say that a part with T-junctions (...) (18 years ago, 5-Mar-07, to lugnet.cad.dat.parts, FTX)
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| | Re: Part Authors: opinions sought on T-Junctions
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(...) Heh, I think I found the (URL) ASCII art>. I coulda sworn it made it into a FAQ somewhere though. Oh well. Have fun, Don (18 years ago, 5-Mar-07, to lugnet.cad.dat.parts, FTX)
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