 | | Re: Conditional Ring primitive?
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(...) That's a primitive I have been longing for... but I realized it is impossible to build: where would you put the control lines? The top control points would need to be scaled differently from bottom ones to match various cylinders/cones (...) (16 years ago, 12-Dec-08, to lugnet.cad)
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| | Conditional Ring primitive?
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(...) I just noticed something else while investigating a fix for the above problem. The above model could really use a circular conditional edge primitive. I would vote for x-ycedge.dat as the filename (ie 1-4cedge.dat, 4-4cedge.dat, (...) (16 years ago, 12-Dec-08, to lugnet.cad)
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| | Re: Colinear Vertices
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(...) I played with the settings, and I had to set the precision all the way down to 0.133 in order to get it to fully smooth. (0.125 failed to smooth properly.) (...) .005. I think I'll set the precision to .01, to hopefully give it some leeway. I (...) (16 years ago, 12-Dec-08, to lugnet.cad)
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| | Re: LETGUI new version 0.1.0.18
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(...) Thanks! For the record: - Ytruder 1.2 is no longer limited to Y direction and can extrude along x, y or z directions - Intersector 1.3 has a new scaling option that improves result for small parts. Philo (16 years ago, 12-Dec-08, to lugnet.cad.dev)
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| | Re: Colinear Vertices
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(...) It makes sense! (...) An example, this button: (URL) I rounded condlines to 2 decimal places since I couldn't get smoothing anyway. I did more experiments, with full precision in condline it works: (URL) but after rounding to 3 dp there is no (...) (16 years ago, 12-Dec-08, to lugnet.cad)
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| | LETGUI new version 0.1.0.18
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A new version of LETGUI ((URL) is now available. Support for new commandline options for Ytruder1.2 and Intersector1.3 are added. Have fun! cu mikeheide (16 years ago, 12-Dec-08, to lugnet.cad.dev)
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| | Re: x210c01 ChromeSilver Drill 4 x 4 x 7
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(...) Welcome back! (...) I agree with Mikeheide, since the total curvature is low I think 6 cones would be more than enough! (...) Seems a good approach. As for the edge line between screw and cones, Isecalc will provide it instantly! (It would be (...) (16 years ago, 12-Dec-08, to lugnet.cad.dat.parts)
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| | Re: x210c01 ChromeSilver Drill 4 x 4 x 7
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(...) I do not understand correctly what you are saying. If you use a cone primitive you can stretch it in all direction. There is no need to use "about 40 cones". A maximum of 10 should do the same! You should use for this the program "cones and (...) (16 years ago, 12-Dec-08, to lugnet.cad.dat.parts)
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| | Re: x210c01 ChromeSilver Drill 4 x 4 x 7
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(...) Just to refresh my memory ( I haven't done any parts since 2951) The 48 primitives divide a circle in 48 straight lines, right? That would for a 60 LDU diameter mean that each straight line is approx 4 LDU's long, so using coneshapes each 4 (...) (16 years ago, 11-Dec-08, to lugnet.cad.dat.parts)
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| | Re: x210c01 ChromeSilver Drill 4 x 4 x 7
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(...) None I know... (...) The official way is to ask a number to a LDraw admin. That said there are numerous parts on tracker named px... (would be px210c01 here) (...) Yes you should be able to use stacked cone primitives. As Travis suggested the (...) (16 years ago, 11-Dec-08, to lugnet.cad.dat.parts)
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| | Re: x210c01 ChromeSilver Drill 4 x 4 x 7
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(...) If you do find a way to use primitives, you'll probably need to use the \48 ones. I don't think 16 segments is enough for the thicker part of the drill, and switching from one resolution to another part-way along seems like it would be tricky. (...) (16 years ago, 11-Dec-08, to lugnet.cad.dat.parts)
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| | Re: Colinear Vertices
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(...) Not that I know of. I'll think about adding a page to the LDView web site. (I don't think it's really appropriate to add it to ldraw.org, since it's LDView-specific.) (...) The precision is 0.0001. I multiply the coordinate by 10000 and then (...) (16 years ago, 11-Dec-08, to lugnet.cad)
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| | x210c01 ChromeSilver Drill 4 x 4 x 7
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Has anyone been working on this? I used the Peeron partnumber, would that be correct? I have determined that the shape of the "body" of the drill is extremely close to 5+(x+3)^(1/1.58), does any primitives exist that are useable for such a curved (...) (16 years ago, 11-Dec-08, to lugnet.cad.dat.parts)
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| | Re: Colinear Vertices
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(...) Thanks, Travis. BTW, are there guidelines for part authors that would improve smooth shading? What about precision in coincidence between conditional lines and matching polygon sides? I have seen _many_ instances where a quad should blend into (...) (16 years ago, 11-Dec-08, to lugnet.cad)
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| | Re: Colinear Vertices
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(...) I looked at LDDP sources (very clear BTW!). Threshold is compared against square of cross product of each angle of quad. So it depends of size of quad to 4th power! Not very good imho, but since it works for such a long time I used the same (...) (16 years ago, 11-Dec-08, to lugnet.cad)
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| | Re: SR 3D Builder version 3.2.2.3 just released
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(...) MLCad keyboard controls are not supported since the user interface is totally different and parts are by far much more easy to place and connect MPD saving is not supported, but .L3B format is compatible with .LDR except for some metacommand (...) (16 years ago, 10-Dec-08, to lugnet.cad)
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| | Re: Creator Adventcalender 2004 - Xmas Blog
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(...) Oooo! What fun! Thanks for sharing this. I must admit, I miss the advent calendars like this, with simple pieces because I used to enjoy designing alternate models as the days went on. Remember 1998's set 1298? wow. ten years ago now: (URL) (16 years ago, 11-Dec-08, to lugnet.cad)
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| | Re: Rendering for liberty
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(...) Nice! You could also try wrapping a real photograph of the sunset around a sphere. -Mike (16 years ago, 10-Dec-08, to lugnet.cad, FTX)
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| | Rendering for liberty
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I've been working on honing my skills at the whole rendering thing using many of the tools written by members of this forum and with knowledge gleaned here. I thought it was time to share! I asked my kids which model they would like me to use for a (...) (16 years ago, 10-Dec-08, to lugnet.cad, FTX)
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| | Re: Colinear Vertices
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(...) It depends on what your threshold is but taking the difference (as you do in a cross product) of two big numbers is less accurate (very much so sometimes) than taking the difference of two smaller numbers. Even without this issue it means that (...) (16 years ago, 9-Dec-08, to lugnet.cad)
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