 | | Re: unofficial new primitive -- "Rounded Corner"
|
|
(...) Good suggestion. Except without the second dash, please. Could you make the title be: 1/8 Sphere Cut Off And add some comment lines, something like: 0 This figure is a sphere (radius 2^.5) intersected with a 0 standard-sized LDraw box (see (...) (24 years ago, 15-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: unofficial new primitive -- "Rounded Corner"
|
|
(...) Yah, that would be the thing to do: send it to partsref@home.com. (...) I'm planning on using it in the skeleton leg, and maybe retro-fitting it into the minifig torso.[1] (24 years ago, 15-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: unofficial new primitive -- "Rounded Corner"
|
|
(...) There's a primitives group who decides if the primitive should be accepted or not (it's been a while since we last discussed anything so I don't know if it's still active). I don't have the list of members in this computer so I think the best (...) (24 years ago, 15-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: unofficial new primitive -- "Rounded Corner"
|
|
(...) You mean you've managed to add the type 5 lines ? [snip] (...) To me, it's a special kind of sphere, so what fo you all think of 1-8sph-c.dat (standing for 1/8 of a sphere, cut of to fit in a corner) Greatings, M. Moolhuysen. (24 years ago, 15-Sep-00, to lugnet.cad.dev)
|
| |
| | Test version of LDraw Add-On Installation
|
|
I've finally put together an installation package for LDAO that should be safe. But it needs some more testing, before I publish it generally. Would someone be willing to try this out, and verify that it works? The test copy is at: (URL) Just (...) (24 years ago, 15-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: part number for "Animal Cattlehorn" and "Minifig Accessory Islander Crest"
|
|
ACK!! Brain cramp, brain cramp! :-P I meant to say "6029a.dat" and "6029b.dat", respectively. That's "6", not "8". Really.... Thanks, Franklin (...) ===== Franklin Cain (and please do *not* call me "Frank" ;-) fwcain@yahoo.com | (URL) OR (...) (24 years ago, 15-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: unofficial new primitive -- "Rounded Corner"
|
|
OK, I've finished this primitive, but before I re-submit it, I need to know a couple of things... Just what do I call the DAT file? On my PC's hard drive, I'm calling it "RND-CRNR.DAT". Is that food enough? Also, what extra steps (if any) do I need (...) (24 years ago, 15-Sep-00, to lugnet.cad.dat.parts.primitives, lugnet.cad.dev)
|
| |
| | part number for "Animal Cattlehorn" and "Minifig Accessory Islander Crest"
|
|
According to this post "(URL) part number for the sprue containing the cattlehorns and Islander crest is 8029. Therefore, I want to rename the DAT file for the cattlehorn piece to "8029a.dat", and the name I'll be using for the Islander crest will (...) (24 years ago, 14-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: "Needs Work"- Needs Work
|
|
(...) Basically, the idea is that each new partfile would be carefully reviewed by a small number of people (between 1 and 3 reviewers per file, I think). Once the reviewers and the author agreed on the part, it would be released. As soon as I can, (...) (24 years ago, 14-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: "Needs Work"- Needs Work
|
|
Steve Bliss <blisses@worldnet.att.net> wrote in message news:G0sn7p.M08@lugnet.com... (...) This sounds like an interesting idea. I'd like to hear more. Adam (24 years ago, 14-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Intersection of 2 3D lines?
|
|
Travis Cobbs skrev i meddelandet ... (...) I have C-code at work to solve this, even if the lines are not co-planar. It calculates one point on each line (the 'nearest points'), and if they are the same, the lines are co-planar. Mail me at ai@cej.se (...) (24 years ago, 13-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Intersection of 2 3D lines?
|
|
Thanks to both of you. Given that this newsgroup covers both part development and cad program development (with part development getting more posts for obvious reasons), I probably should have specified that I needed to do this programatically. (On (...) (24 years ago, 13-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Off-topic: website building
|
|
"Ryan J Farrington" <ryanjf2@juno.com> wrote in message news:20000913.090209...uno.com... (...) Though you did certainly hit an appropriate group to gain the attention of web authors/designers, I think the question was a tad too off-topic. Why not (...) (24 years ago, 13-Sep-00, to lugnet.cad.dev.org.ldraw, lugnet.cad.mlcad, lugnet.cad.dev)
|
| |
| | Re: Intersection of 2 3D lines?
|
|
(...) Well, thanks Steve. But you could easilly make it 3D couldn't you ?! 8) See ya (24 years ago, 13-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Intersection of 2 3D lines?
|
|
(...) You can use the "Line Intersect" tab on my rotate.xls spreadsheet (get it from (URL)). It's only 2D, but you can do XY first, then XZ. The resulting XYZ values will be your intersection. Not as elegant as Rui's solution, but it works for me... (...) (24 years ago, 13-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Minifig Skeleton Arm - part number?...
|
|
(...) It's 6265. Steve (24 years ago, 13-Sep-00, to lugnet.cad.dev)
|
| |
| | Off-topic: website building
|
|
To all who have made their own websites: I am going to be building a website of my own, and I was curious which tools all of you have used to make yours. And does anyone write directly in HTML or JavaScript? Please respond to my personal e-mail (...) (24 years ago, 13-Sep-00, to lugnet.cad.dev.org.ldraw, lugnet.cad.mlcad, lugnet.cad.dev)
|
| |
| | Re: Intersection of 2 3D lines?
|
|
(...) you just have to define the lines equation! as you now: Y = mX +b Z = nX +c defining a line as a function of X coord. Now, these lines probably are edges os something, or at least you have to points which belong to them, usint them, you can (...) (24 years ago, 13-Sep-00, to lugnet.cad.dev)
|
| |
| | Intersection of 2 3D lines?
|
|
If I have two co-planar lines in 3-space, does anyone know how I can determine their intersection? If it makes the equations easier, the plane that they are in is: Z = 1 - X - Y otherwise written X + Y + Z = 1 Anyone? --Travis Cobbs (...) (24 years ago, 13-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Minifig Skeleton Arm - part number?...
|
|
(...) Well, I can't find one on it using my v1.0 Eyeball and Beaker ("Eeep!") accidentally installed MS Windows Y2K on the home-built electron microscope (powered by the surplus Soviet "Fusion Buddy" mini-reactor) so I obviously can't use THAT to (...) (24 years ago, 13-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: "Needs Work"- Needs Work
|
|
(...) I've been working on another one. The particular part I've been looking at was released in mid-1998, and it seems apparent that the tools available at the time had a big impact on the ability of the author to be thorough in modeling. Once the (...) (24 years ago, 12-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Sphere tesselation
|
|
(...) I wonder if it's possible to push the (initial?) vertices toward the center. I was playing around with fractaling from a simplest case (1 triangle in the mesh). I noticed the center area was made up of one type of triangle (nearly (...) (24 years ago, 12-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: "Needs Work"- Needs Work
|
|
(...) Yes, but according to my, possibly unreliable recollection, those parts where rejected or withdrawn before voting (during submission time), or as a result of the discussion, but not as a result of a actual vote. And regardless why, like you've (...) (24 years ago, 12-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Skeleton Torso: Attn Steve Bliss
|
|
(...) Go fer it. Let me know if you need the part number -- I don't remember if they were all posted or not. Steve (24 years ago, 12-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: "Needs Work"- Needs Work
|
|
(...) IIRC, several parts were rejected in one of the votes but that was the only time. Don't you remember the endless discussion about people being allowed to model parts that they don't have ? Leonardo (24 years ago, 12-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: "Needs Work"- Needs Work
|
|
I would like to bring under your attention that in the past year some "Needs Work" parts actualy have been fixed by authors other than original ones. And recently myself and other people did review some parts that didn't have the "Needs Work"-tag on (...) (24 years ago, 12-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Sphere tesselation
|
|
"Steve Bliss" <steve.bliss@home.com> wrote in message news:f5csrssq9rkotte...4ax.com... (...) 5 (...) points (...) Thanks for the info. The next thing I'm going to try will be similar, but iterative instead of recursive in order to allow for a set (...) (24 years ago, 12-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Sphere tesselation
|
|
(...) It was a fractal-thingy--it started with a 10-vertex triangular mesh (the three points on the axes, two points along each edge, and the point at the center of the surface of the hemi-demi-semi-sphere). Then it divided each triangle in the mesh (...) (24 years ago, 12-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: HELP !!! Rotating a cylinder
|
|
"Dennis Osborn" <osbodr01@holmes.ipfw.edu> wrote in message news:G0qCM2.AE4@lugnet.com... (...) rotation (...) I (...) No problem. Thanks for the "credit". One thing about writing a program which displays these models is that you tend to get a (...) (24 years ago, 12-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Sphere tesselation
|
|
(...) You got me on that one 8) See ya Rui Martins (24 years ago, 11-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Sphere tesselation
|
|
"Rui Martins" <Rui.Martins@link.pt> wrote in message news:Pine.GSU.4.10.1...0@is-sv... (...) ends (...) a (...) circumference (...) sphere, (...) it has (...) this (...) sphere, (...) Actually, I don't believe the existing one is quite a sphere. I (...) (24 years ago, 11-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Sphere tesselation
|
|
"Steve Bliss" <steve.bliss@home.com> wrote in message news:ppnprssksi9anl3...4ax.com... (...) How did you generate this file? It certainly looks like it was algorithmically generated. Don't tell me you figured out all those points BY HAND? I did (...) (24 years ago, 11-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Voting Open for LCAD Parts Update 2000-02
|
|
(...) I've corrected this now and sent the correction to Steve Bliss. Thanks again for your comment. Fredrik PS: A change of the motherboard fixed my computer. This was very easy to fix -- the difficult part was to find out which component was (...) (24 years ago, 11-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: HELP !!! Rotating a cylinder
|
|
(...) I posted the Skeleton Torso in lugnet.cad.dat.parts Dennis (24 years ago, 11-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: It's all clear now...
|
|
"Steve Bliss" <steve.bliss@home.com> wrote in message news:qn1arso26cua6dm...4ax.com... (...) Like Chris, I spent probably an hour rotating, inverting, skewing the cyls.dat primitives before coming to the conclusion that I needed something else. I (...) (24 years ago, 11-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: HELP !!! Rotating a cylinder
|
|
Travis, I want to thank you for your help and the explaination on the rotation matrix. You can see the results in the Skeleton Torso I am about to post. I have documented your help in the file. Once again, Thanks. Dennis (24 years ago, 11-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Sphere tesselation
|
|
(...) As far as I know, the sphere is incorrectly tesselated in Ldraw, because it has non-planar quads. So if there is ever going to be a matematical tesselation, which aproaches this form, it won't surelly be a sphere, more like "spheroid", similar (...) (24 years ago, 11-Sep-00, to lugnet.cad.dev)
|
| |
| | Re: Sphere tesselation
|
|
(...) Nope, sorry. (...) I don't think James used any particular algorithm when he selected points for the sphere p-files. At some point, I'd like to replace the sphere p-files with something better-looking. Something like the 48\1-8sphe.dat I (...) (24 years ago, 11-Sep-00, to lugnet.cad.dev)
|
| |
| | Sphere tesselation
|
|
Does anyone know how to perform an arbitrary sphere tesselation which ends up with the tesselation used by the LDraw sphere primitives when set to a detail level of 16 (16 being the number of facets around the circumference at the equator). I'll (...) (24 years ago, 9-Sep-00, to lugnet.cad.dev)
|
| |
| | Fanzine- CAD Page? (was Re: "Needs Work"- Needs Work)
|
|
(...) current (...) A feature of the fan-zine CAD page perhaps? If anyone was willing to write one? Other, items could include: Tool reviews and comparisons. How to - tutorials... MOC's in the CAD system- (Although I supsect most of the artwork for (...) (24 years ago, 9-Sep-00, to lugnet.cad.dev)
|
