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 CAD / Development / 8087 (-20)
  Re: HELP: transformation of primitive causes BFC to stop working  [DAT]
 
(...) I think this line is what you want: 1 16 10 10 2 0 0 8 -8 0 0 0 -1 0 2-4ndis.dat Let me know if I'm right. -Orion (22 years ago, 18-Dec-02, to lugnet.cad.dev)
 
  HELP: transformation of primitive causes BFC to stop working  [DAT]
 
In playing with making a part (3648) BFC certified I have ran into a problem. The following line is in the original file: 1 16 10 10 2 0 0 8 8 0 0 0 1 0 2-4ndis.dat This line transforms the primitive such that the front face is inside the part (I'm (...) (22 years ago, 18-Dec-02, to lugnet.cad.dev)
 
  I would like to work on part 3648
 
I have been playing around with LDraw, and I have decided that I would like to make an attempt to fix the Technic Gear 24 Tooth part. I noticed that there are several polygons near the axle hole that are "out-of-bounds" (one vertex from several (...) (22 years ago, 18-Dec-02, to lugnet.cad.dev)
 
  Re: Decorated DATs
 
(...) See lugnet.cad.dev for more information on this. There are a lot of mechanisms for creating patterned parts. I myself have used Quad2Dat successfully. Assuming you have a good quality high resolution scan of the part and it's a flat surface (...) (22 years ago, 17-Dec-02, to lugnet.build, lugnet.cad.dev)
 
  New primitive: chord.dat (not the final name)  [DAT]
 
Here's something I whipped up that I find extremely useful for patterned parts in particular. When trying to put something inside a circle (or anywhere near a curved section), this lets you avoid 2 problems: 1: having to calculate the awkward (...) (22 years ago, 17-Dec-02, to lugnet.cad.dat.parts, lugnet.cad.dev)
 
  Re: How do I write a header file for an updated part...
 
(...) Good idea. I'll do that before I send the parts in. (...) Hm, you think the 1x4 brick is common enough? Methinks the answer is yes- I'll separate the unfaced portion. I'm also submitting a BFC'd box4t because I used that for the brick's body. (...) (22 years ago, 12-Dec-02, to lugnet.cad.dev)
 
  Re: question/problem with some flag parts
 
(...) I'm pretty sure there is not a 6 x 3 1/3 flag, and seeing as the original author titled it "6 x 4" I suspect this was just an error in authoring (and review !). I'll liaise with the author to arrange a fix. Chris (22 years ago, 12-Dec-02, to lugnet.cad.dev)
 
  Re: How do I write a header file for an updated part...
 
(...) I've not discussed with Steve, but I'd go for option 2 - write a new header but credit the previous author in a subsidiary comment. If the existing author is still active, it would be polite to let them know what you're doing. Please re-use (...) (22 years ago, 12-Dec-02, to lugnet.cad.dev)
 
  How do I write a header file for an updated part...
 
...when the new version is redone from scratch? In the past, I've done some minor reworking of files. In these cases, I simply added the date, my name, and a description of what I'd done to the file. But what about when I fire up Notepad and start (...) (22 years ago, 12-Dec-02, to lugnet.cad.dev)
 
  Re: question/problem with some flag parts
 
You're right. The 43.dat isn't a 6 x 4 flag. But I can't tell you if there exists a real 6 x 3 1/3 one. The "Jolly Roger" one is named correct. Does anybody want to fix this? CU Bernd Jaco van der Molen <jmolen@globalxs.nl> schrieb im Newsbeitrag (...) (22 years ago, 12-Dec-02, to lugnet.cad.dev)
 
  Re: question/problem with some flag parts
 
Hmm... The flag 6 x 4 (#43) is actually 6 x 3 1/3. Flag 6 x 4 (#43P01) is 6 x 4. Strange. I do not own any of these two parts, but I think part 43 is either mesured wrong or the description is wrong. Or part 43P01 is wrong... Jaco "Jonathan Wilson" (...) (22 years ago, 12-Dec-02, to lugnet.cad.dev)
 
  question/problem with some flag parts
 
Can someone explain why the "flag 6 x 4" and the "flat 6 x 4 with jolly roger pattern" are different sizes? Is this an error? (22 years ago, 12-Dec-02, to lugnet.cad.dev)
 
  Re: Why should parts not have vertices lying along edges?
 
(...) I wouldn't ignore it lightly as it can have many adverse effects. You get little holes from from the roundoff errors. You can also see it in lighting problems with more advanced renderers such as ldview and POV. Here's an old example of the (...) (22 years ago, 12-Dec-02, to lugnet.cad.dev)
 
  Re: Why should parts not have vertices lying along edges?
 
(...) My opinion is that this isn't a significant enough problem to worry about. Further more, I consider this is a renderer limitation and not a problem with the part itself. Therefore, feel free to ignore this if it suits your purposes. -Orion (22 years ago, 12-Dec-02, to lugnet.cad.dev)
 
  Why should parts not have vertices lying along edges?
 
For this discussion, I'm using the term "polygon" to refer to quads or triangles. When I say "primitive", I'm talking about more complex primitives such as discs and non-discs. And when I refer to "edges", I'm talking about line segments between a (...) (22 years ago, 11-Dec-02, to lugnet.cad.dev)
 
  Numbers Report - 5 Dec. 2002
 
Section Totals 028 certified files. 184 files need admin review. 193 files need more votes. 244 have uncertified subfiles. 136 held files. 785 files total. For comparison: 2002-12-05 - 028 / 184 / 193 / 244 / 136 (785) 2002-10-21 - 159 / 153 / 221 / (...) (22 years ago, 5-Dec-02, to lugnet.cad.dev, lugnet.cad.dev.org.ldraw)
 
  Re: True Type fonts and LDraw files
 
Niels, I'm not sure what to do about arrows that are hidden because the view angle hides it. Do you have any ideas? It seems to me that it is just like any other part that is hidden from view. You can't see it. Do you have ideas how to work around (...) (22 years ago, 3-Dec-02, to lugnet.cad.dev)
 
  Re: True Type fonts and LDraw files
 
Thanks Jeroen, I guess there are multiple issues here. My original thoughts were primarily restricted to my LPub centric perspective, where we create step by step building instructions with a fixed view angle, and use rotation steps to virtually (...) (22 years ago, 3-Dec-02, to lugnet.cad.dev)
 
  Re: True Type fonts and LDraw files
 
Hmm, you could use the IFPOV and ENDPOV statements: 0 IFPOV 0 text { ttf "arial.ttf" // check your fonts directory for the proper names 0 "place your text here" // well, place your text there 0 1, // thickness of text (text will be 3D, dunno what (...) (22 years ago, 3-Dec-02, to lugnet.cad.dev)
 
  Re: True Type fonts and LDraw files
 
(...) MLCAD indeed has a BACKGROUND meta commmand that places an image as a background. This image always faces the "camera", indepedently of the view angle. It will not work in al instances (it might get obscured by the model), but it is the only (...) (22 years ago, 3-Dec-02, to lugnet.cad.dev)


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