 | | Re: Dimensions needed for part 4424
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Steve Bliss <steve.bliss@earthlink.net> schrieb im Newsbeitrag news:H9vCoG.6x7@lugnet.com... (...) Thank you for reviewing this. I've made it nearly one year ago. But I think thats the correct size because I used a measuring gauge with a vernier (...) (22 years ago, 7-Feb-03, to lugnet.cad.dev)
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| | Re: Making parts 2999 and 2998 work together
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Steve, I agree with your opinion. I am one of the people that have the 8448 modeled and do not mind one bit when I have to re-position a part so that it's orientation is more sensible. It's a small price to pay for the over all good for the entire (...) (22 years ago, 7-Feb-03, to lugnet.cad.dev)
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| | Dimensions needed for part 4424
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See: (URL) working on reviewing 4424.dat, the washtub/half-barrel. I do not have one of these parts. Using the LDraw file, I got a rough size of 4.5 x 4.5 (actually, it's more like 4.4 x 4.4). Could who has the actual part please check the (...) (22 years ago, 6-Feb-03, to lugnet.cad.dev)
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| | Re: New part 3648a - 3648s01.dat [DAT]
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0 ~Technic Gear 24 Tooth - Cogs and Outer Ring 0 Name: s\3648s01.dat 0 Author: Lance Hopenwasser <hopenwasser@acm.org> 0 Unofficial Sub-Part 0 BFC CERTIFY CCW 0 0 Cogs 0 1 16 0 27.04 0 1 0 0 0 1 0 0 0 1 tooth24a.dat 1 16 -6.998 26.1179 0 .9659 (...) (22 years ago, 3-Feb-03, to lugnet.cad.dev, lugnet.cad.dat.parts.primitives)
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| | Re: New part 3648a - 48\1-6cyli,dat [DAT]
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0 8-48 Hi-Res Cylinder 0 Name: 48\1-6cyli.dat 0 Author: Lance Hopenwasser <hopenwasser@acm.org> 0 Unofficial Primitive 0 BFC CERTIFY CW 5 24 1 0 0 1 1 0 0.9914 0 0.1305 1 0 -1 5 24 0.9914 0 0.1305 0.9914 1 0.1305 0.9659 0 0.2588 1 0 0 5 24 0.9659 0 (...) (22 years ago, 3-Feb-03, to lugnet.cad.dev, lugnet.cad.dat.parts.primitives)
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| | Re: New part 3648a - 3648as01.dat [DAT]
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0 ~Technic Gear 24 Tooth with 3 Axleholes - Eighth of Pin Holes 0 Name: s\3648as01.dat 0 Author: Lance Hopenwasser <hopenwasser@acm.org> 0 Unofficial Sub-Part 0 BFC CERTIFY CCW 0 Ring surfaces 1 16 10.3201 3 7.625 0 0 .3201 -1 0 0 0 -1 0 rect3.dat 1 (...) (22 years ago, 3-Feb-03, to lugnet.cad.dev, lugnet.cad.dat.parts.primitives)
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| | Re: New part 3648a - Test Models [DAT]
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0 Test Interlocking Two 3648a 0 Name: Test1 3648a.ldr 0 Author: Lance Hopenwasser 0 Unofficial Model 1 1 -14 -17 0 1 0 0 0 1 0 0 0 1 3894.DAT 1 0 26 -7 0 0 0 1 0 1 0 -1 0 0 3705.DAT 1 0 -34.009 -7.131 0 0 0.1305 0.9914 0 0.9914 -0.1305 -1 0 0 (...) (22 years ago, 3-Feb-03, to lugnet.cad.dev, lugnet.cad.dat.parts.primitives)
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| | Re: New part 3648a - tooth24a.dat [DAT]
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0 Single Tooth (Tall) for Technic Gear 24 Tooth 0 Name: tooth24a.dat 0 Author: Lance Hopenwasser <hopenwasser@acm.org> 0 Unofficial Primitive 0 BFC CERTIFY CCW 1 16 0 5.8525 0 .8 0 0 0 -1 0 0 0 4.75 rect.dat 1 16 1.275 4.3525 0 0 -1 -.475 0 0 1.5 (...) (22 years ago, 3-Feb-03, to lugnet.cad.dev, lugnet.cad.dat.parts.primitives)
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| | Re: New part 3648a - 3-4ring3.dat [DAT]
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0 3/4 Ring Radius 3:4 0 Name: 3-4ring3.dat 0 Author: Lance Hopenwasser <hopenwasser@acm.org> 0 Unofficial Primitive 0 BFC CERTIFY CW 4 16 -3 0 0 -2.7717 0 -1.1481 -3.6956 0 -1.5308 -4 0 0 4 16 -2.7717 0 -1.1481 -2.1213 0 -2.1213 -2.8284 0 -2.8284 (...) (22 years ago, 3-Feb-03, to lugnet.cad.dev, lugnet.cad.dat.parts.primitives)
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| | Re: New part 3648a - 3648s02.dat [DAT]
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0 ~Technic Gear 24 Tooth - Eighth of Center Axlehole 0 Name: s\3648s02.dat 0 Author: Lance Hopenwasser <hopenwasser@acm.org> 0 Unofficial Sub-Part 0 BFC CERTIFY CCW 0 Center Axlehole 4 16 2 5.58 9.625 0 6 9.625 0 6 0 2 5.58 0 2 24 0 6 9.625 2 5.58 (...) (22 years ago, 3-Feb-03, to lugnet.cad.dev, lugnet.cad.dat.parts.primitives)
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| | Re: New part 3648a - 48\1-6edge.dat [DAT]
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0 8-48 Hi-Res Edge 0 Name: 48\1-6edge.dat 0 Author: Lance Hopenwasser <hopenwasser@acm.org> 0 Unofficial Primitive 2 24 1.0000 0.0000 0.0000 0.9914 0.0000 0.1305 2 24 0.9914 0.0000 0.1305 0.9659 0.0000 0.2588 2 24 0.9659 0.0000 0.2588 0.9239 0.0000 (...) (22 years ago, 3-Feb-03, to lugnet.cad.dev, lugnet.cad.dat.parts.primitives)
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| | Re: New part 3648a - tooth24b.dat [DAT]
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0 Single Tooth (Short) for Technic Gear 24 Tooth 0 Name: tooth24b.dat 0 Author: Lance Hopenwasser <hopenwasser@acm.org> 0 Unofficial Primitive 0 BFC CERTIFY CCW 1 16 0 4.8525 0 1.25 0 0 0 -1 0 0 0 4.75 rect.dat 1 16 1.6875 3.2275 0 0 -1 -.4375 0 0 (...) (22 years ago, 3-Feb-03, to lugnet.cad.dev, lugnet.cad.dat.parts.primitives)
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| | New part 3648a - Technic Gear 24 Tooth with 3 Axleholes [DAT]
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OK, after much work, refinement, and most especially help from Mark Kennedy, Chris Dee, Steve Bliss, and Orion Pobursky, I have finally finished my first part along with several supporting primitives (thus the cross-post to LCDPP). I would (...) (22 years ago, 3-Feb-03, to lugnet.cad.dev, lugnet.cad.dat.parts.primitives)
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| | Re: Need for rect primitive with two or one edge?
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Actually, in hindsight, I think maybe it was my brain that was missing. I thought it was missing rect2p.dat, but I just looked at my zip and there is was. It probably wouldn't be a bad idea to run it as a daily job anyway, if it doesn't take too (...) (22 years ago, 3-Feb-03, to lugnet.cad.dat.parts.primitives, lugnet.cad.dev)
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| | Re: Making parts 2999 and 2998 work together
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(...) I would move 2999... and do it in this release, partly because it's the sensible and consistent thing to do and partly because it will have less impact if moved now than at any point in future. ++Lar (22 years ago, 3-Feb-03, to lugnet.cad.dev)
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| | Re: Making parts 2999 and 2998 work together
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(...) I say reposition 2999. I think that the few, if any, models that use this part could be updated with relative ease and the frustration saved by going this route would offset any inconveinence. -Orion (22 years ago, 3-Feb-03, to lugnet.cad.dev)
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| | Making parts 2999 and 2998 work together
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I posted a 'hold' review on the wheel from the 8080 Super Car (part 2998). You can read it at: (URL). The part file itself is good. Unfortunately, 2998 only fits with part 2999 (see 2999 at (URL). 2999 was released back in 1998. Right now, the two (...) (22 years ago, 2-Feb-03, to lugnet.cad.dev)
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| | Re: Need for rect primitive with two or one edge?
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(...) What was it missing? We did have a problem running out of disk space recently, that could have caused the trouble. (...) I've rebuilt the zip file. I should probably set that up to run as a daily job. Steve (22 years ago, 1-Feb-03, to lugnet.cad.dat.parts.primitives, lugnet.cad.dev)
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| | Updated Axle and Connect POV primitives
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I updated the axle and connect primitve POV file. I also added POV code to the axlehole and connect primitves so that L3P add my code automatically. I put these in a zip file that just needs to be put into the /P directory. let me know if these are (...) (22 years ago, 1-Feb-03, to lugnet.cad.ray, lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) Don, I look forward to figuring this one out, but since it was not immediately obvious to me how to use it, I put it aside for now. (Just too much crap going on at the moment.) Thanks for bringing it to the Mac. Chris (22 years ago, 1-Feb-03, to lugnet.cad.dev, lugnet.cad.dev.mac)
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| | Re: Need for rect primitive with two or one edge?
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(...) The Rectangle with 2 Parallel Edges (rect2p.dat) was already on the Parts Tracker. I've just added rect2a.dat (Rectangle with 2 Adjacent Edges) and rect1.dat (Rectangle with 1 Edge). I can't fix the zip file right now, but will try to get to (...) (22 years ago, 31-Jan-03, to lugnet.cad.dat.parts.primitives, lugnet.cad.dev)
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| | Re: LDRAW and Blender
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Hi Matthew, I've had Blender installed on my computer since Christmas but hadn't played with it much. After reading this, I've downloaded all the manuals and I am ready to go. This is the boost that I needed. Very promising - thanks a lot! (22 years ago, 30-Jan-03, to lugnet.cad.dev)
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| | Re: When (if) to use optional lines?
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(...) Hi Lance, I asked the same question last summer and since then have come to realize optional lines are useful. Here's the thread to my original question (and the many replies): (URL) a thread on how optional lines help smoothing algorithms: (...) (22 years ago, 30-Jan-03, to lugnet.cad.dev)
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| | When (if) to use optional lines?
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I am just about to finish development of a fairly complicated piece (24-tooth gear with 3 axlesholes), and in looking at previous posts and documentation I have seen some talk about optional lines. Currently I have not used them at all. What are the (...) (22 years ago, 30-Jan-03, to lugnet.cad.dev)
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| | Need for rect primitive with two or one edge?
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Assuming these don't already exist (I looked for rect2.dat on Parts Tracker, but could find nothing -- speaking of which, the "complete" unofficial parts zip seems to be out of date, since it is missing some stuff): Would it be reasonable to create (...) (22 years ago, 30-Jan-03, to lugnet.cad.dat.parts.primitives, lugnet.cad.dev)
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| | Re: LDRAW and Blender
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Matthew, I was wondering when someone would develop an import routine for Blender. I have used and known about Blender for some time. Over time, I would not be surprised to see the community embrace Blender as its favorite renderer even over POVRAY (...) (22 years ago, 30-Jan-03, to lugnet.cad.dev)
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| | LDRAW and Blender
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Hi all --- I am currently working on an LDRAW to Blender importer written in Python. For those of you who have never heard of Blender, it is a free, open source 3d modeler and renderer that includes a Python API (see it at www.blender.org). For (...) (22 years ago, 29-Jan-03, to lugnet.cad.dev)
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| | Re: LPub 2.1.0.6 Available
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(...) Steven, I think it was a fair question, not a stupid one. Please *don't* shut up. Kevin (...) (22 years ago, 30-Jan-03, to lugnet.cad, lugnet.inst, lugnet.cad.dev)
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| | Re: LPub 2.1.0.6 Available
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(...) Worked like a charm. Shoot...I should have thought of that. Boy do I feel stupid. Sorry about that! I'll shut up now. -- Steven (22 years ago, 30-Jan-03, to lugnet.cad, lugnet.inst, lugnet.cad.dev)
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| | Re: LPub 2.1.0.6 Available
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Steven, In LPub Steps, Generate, uncheck Construction Images, then use Generate->Instruction Images menu item. Kevin (...) (22 years ago, 29-Jan-03, to lugnet.cad, lugnet.inst, lugnet.cad.dev)
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| | Re: LPub 2.1.0.6 Available
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(...) OK...I'm new to editing .DAT files (although this is an area I would like to improve). That was just too cool. I used LDraw Design Pad, removed the lines under the wire stub area, previewed the image (using the LDView button) and the wire was (...) (22 years ago, 29-Jan-03, to lugnet.cad, lugnet.inst, lugnet.cad.dev)
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| | Re: LPub 2.1.0.6 Available
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(...) Yep, we sure have! I'm finding it incredibly useful for my multiple projects right now. Thanks again, Kevin, for your hard work with this! (...) And we're all better for it that you are :-) -Tim (22 years ago, 29-Jan-03, to lugnet.cad, lugnet.inst, lugnet.cad.dev)
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| | Re: LPub 2.1.0.6 Available
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(...) Thanks Steve! Tim Courtney and I have been putting LPub through its paces trying to get stuff ready for BricksWest. I finished up building instructions for a pneumatic adding machine, and Tim has got some of his own tricks up his sleeve. I (...) (22 years ago, 29-Jan-03, to lugnet.cad, lugnet.inst, lugnet.cad.dev)
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| | Re: LPub 2.1.0.6 Available
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Steven, My bad. 880A.DAT is an LSynth part that I failed to add to the setup list. You can make one of your own by copying 880.DAT to 880A.DAT. Edit 880A.DAT and remove the electric cord stub. I'll add it tto the distribution. Thanks, Kevin (...) (22 years ago, 29-Jan-03, to lugnet.cad, lugnet.inst, lugnet.cad.dev)
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| | Re: LPub 2.1.0.6 Available
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Kevin, Quick technical question. When I try to use the part 2982C02.DAT ~Electric Light Sensor (Complete Assembly Shortcut without wire) I receive a "File 880A.DAT not found! Continue loading?" error. When I respond yes, it loads the sensor but (...) (22 years ago, 28-Jan-03, to lugnet.cad, lugnet.inst, lugnet.cad.dev)
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| | Re: LPub 2.1.0.6 Available
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Kevin, Boy, you continue to make a great program even better! Thanks for all of your time updating LPub. It has become my new best friend when documenting student instructions. I used it yesterday and save for a few little quirks, free software just (...) (22 years ago, 28-Jan-03, to lugnet.cad, lugnet.inst, lugnet.cad.dev)
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| | Re: LPub 2.1.0.6 Available
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As is often the case, I gave an incomplete URL. Try this: (...) (22 years ago, 28-Jan-03, to lugnet.cad, lugnet.inst, lugnet.cad.dev)
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| | New address
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To all, Due to some technical problems, my server has changed the address of my website to (URL) on the K'nex and Lincoln Logs parts libraries can be found at (URL) ArTron space story is here: (URL) am sorry for any problems the change might have (...) (22 years ago, 27-Jan-03, to lugnet.publish, lugnet.cad.dev)
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| | Method for splitting quads with not coplanar vertices? (Cross-post for /dat and /dev)
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hi folks, I had a little chat with carsten about the possibility to fix not coplanar vertices automatically in LDDP. we all know that running a line like this: 0 4 16 10 -1 10 10 0 -10 -10 0 -10 -10 0 10 through L3P with –dist 0.1 or –det 0.001 will (...) (22 years ago, 27-Jan-03, to lugnet.cad.dev, lugnet.cad.dat.parts)
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| | Re: Rect primitive with one edge missing?
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(...) Thanks to Mark Kennedy, you'll find this on the Parts Tracker at (URL) (22 years ago, 26-Jan-03, to lugnet.cad.dat.parts.primitives, lugnet.cad.dev)
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| | Rect primitive with one edge missing?
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Is there a primitive for a rectangle with one edge missing? I can't seem to find one, and I think it would be useful. It certainly would for a part that I am currently working on -- reducing three lines of code to one, 48 times. If there isn't one, (...) (22 years ago, 26-Jan-03, to lugnet.cad.dat.parts.primitives, lugnet.cad.dev)
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| | Re: Wierd shading in LDView
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(...) The 1-4con0 primitive should arguably have a different name, because it is a different shape than all the other cone primitives. Specifically, it comes to a point, while all the other cone primitives are missing the point (they're open at both (...) (22 years ago, 24-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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<snip> (...) Yes. lsynth only deals with 1 peice of stretched rubber band at a time, which is why I was keeping those other three pulleys a secret from Don. Kevin (...) (22 years ago, 24-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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"Kevin Clague" <kevin_clague@yahoo.com> skrev i meddelandet news:H94xC1.11z@lugnet.com... (...) calculate (...) If the condition above (Dist(...) etc.) holds, then it's just a matter of projecting the circle centers onto the line, ie. solve for a (...) (22 years ago, 23-Jan-03, to lugnet.cad.dev)
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| | Wierd shading in LDView
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I was updating part 3847 to use the 1-4con0 primitve and I notice some wierd shading at the tip. I then open the 1-4con0 primitive directly and there were no shading problems I could see. Download 3847 at the Parts Tracker to see what I mean. (URL) (...) (22 years ago, 24-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) What you really need is to find a way to find just one side of the "rubber band". Say, pulley A to pulley B, "Side one". Then you could use the same function to determine pulley B to C, side one or two, and so on... Right? Paul (22 years ago, 24-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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Kevin, I have been watching this thread with great interest and it is really fun to watch the community pitch in and assist you. Would you do me a favor. When you finally have the solution, could you summarize in a post? I plan on using this as a (...) (22 years ago, 23-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) I couldn't find it anywhere in this thread, so the project page is here: (URL) on the Browse CVS link near the bottom to view the source code. The homepage is here: (URL) just to test things out a bit, I logged into the sourceforge compile (...) (22 years ago, 23-Jan-03, to lugnet.cad.dev, lugnet.cad.dev.mac)
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| | Re: Tangent between two circles in 3D space?
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(...) This looks great! This is what I was trying say the other day during my ah,hah! moment, but not so tersely. Now I just need to know how to calculate the intersection of the line and each circle and I'll be all set I think. I'll do some (...) (22 years ago, 22-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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"Kevin Clague" <kevin_clague@yahoo.com> skrev i meddelandet news:H92o0p.CGB@lugnet.com... (...) a (...) Line = Intersect(C1.Plane, C2.Plane) if (Dist(C1.Center, Line) = C1.Radius) and (Dist(C2.Center, Line) = C2.Radius) ... (Or have I (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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Agreed! -- Steven B. Combs, Publisher Bricks in my Pocket (BimP) (URL) Submission Information: (URL) member #414 "Kevin Clague" <kevin_clague@yahoo.com> wrote in message news:H92o80.D83@lugnet.com... (...) question! (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) More or less... there are 4 tangents to the 2 cylinders that happen to be on the circles. (...) Some thoughts that could perhaps (with [lots of] work) lead to an iterative solution: - Select one of the circles, then choose one radius of this (...) (22 years ago, 22-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) Yes. This *is* the ultimate (and probably universal) solution, although we probably need to be able to find one of four cylinders between any two circles in 3D space. You are thinking in terms of pulleys always on the outside of the band. With (...) (22 years ago, 22-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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Hi Kevin, I think common tangent to circles is too restrictive, since rubber belts tolerate quite a lot of misalignment. ((URL) the problem should be reformulated as: Two circles in 3D space define two cylinders orthogonnally extruded from them. (...) (22 years ago, 22-Jan-03, to lugnet.cad.dev)
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| | Re: Seam width
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(...) Please see (URL) (22 years ago, 22-Jan-03, to lugnet.cad.dev)
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| | Re: Seam width
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(...) In LDView, I do a few things. First, I check to see if the file I just loaded is a part. In order to be a part, it has to satisfy two criteria. First, it can't be the child of a part. Second, it has to either be in the LDraw Parts directory, (...) (22 years ago, 22-Jan-03, to lugnet.cad.dev)
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| | Re: LDraw Infotip Shell Extension DLL
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(...) parts directories, researching parts stuff... :) (...) This version is very nice, just as it is. :) But if you were to figure out to make LDraw files display rendered images in Explorer's "thumbnail" view, that would be awesome... Steve (22 years ago, 22-Jan-03, to lugnet.cad, lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) Well, I'll start 8?) Step 6 - thats radius Step 7 - should be sin T = L / R ROSCO (22 years ago, 22-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) OK. Here's my rather convoluted analysis: 1. Find the plane of pulley A 2. Find the plane of pulley B 3. If they dont intersect, no tangent so stop here 4. Find the angle between them, call it T 5. Find the normal to plane A that passes (...) (22 years ago, 22-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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I have a child in fourth grade, and like many his age, he is a natural born lawyer looking for loopholes, so 'm well versed in the tactic because it is hard to resist.... If you notice my original post, I didn't even mention pulleys, I just asked (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) Ah Ha! Apparently there were TWO other pulleys you weren't telling us about. (URL) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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|
Agreed! -- Steven B. Combs, Publisher Bricks in my Pocket (BimP) (URL) Submission Information: (URL) member #414 "Kevin Clague" <kevin_clague@yahoo.com> wrote in message news:H92o80.D83@lugnet.com... (...) question! (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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Don, I'm assuming four pulleys in this case. Two are parallel to each other where the rubber band bends to be non-planar, and two others that pull the band around the two parallel pulleys. Kevin (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) Don, this is what I do for planar rubber bands and it works great if the two pulleys are in the same plane. But I can imagine a four pulley configuration where the first pulley is parallel to the YZ plane, the second pulley is parallel to the (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) It sounds like you want the intersection point of the 2nd circle with the plane of the first circle. I guess that should be exactly one point unless they're in the same plane. However, I don't see how the rubber band gets back to the first (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) I'm sure you're probably looking for a solution with x,y,z coords, but just in case, the 2D solution is on page 7 of Graphics Gems, and also here: (URL) think you should be able to transform your circles into the x,y plane with one center at (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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Steven, I debated with myself about adding L3PAO, because it certainly has had a positive effect for people who don't like command lines (and even for some of those that do). LPub has all the capabilities of L3PAO plus a *lot* more, so I felt like (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) With two circles in the same plane you can have four possible tangent lines. LSynthcp uses this to calculate straight line segments of rubber bands around pulleys. In 3D space you can have circles that are tangent along one line. Imagine a (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) What have you tried so far? And which tangent? Think about it, there's an infinite number of solutions. Even on a plane there are multiple solutions. Recommendation: start with the book _Computational Geometry in C_ by Joseph O'Rourke. -Erik (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: Tangent between two circles in 3D space?
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(...) Wouldn't they have to be on the same plane in order to find the tangency? Or did you mean the tangency of two spheres? Steven (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) I just completed Chapter 9 of your book and I think I answered my own question! Steven (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Tangent between two circles in 3D space?
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Anyone know how to find out the tangent between two cicles in 3D space? Kevin (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) ;^) Relax, we are talking about both on the command line that starts the program, as well as on the LDraw meta-commands that start synthesis of a specific part. Notice he said getopt() style parameters, not getopt() to get the parameters. (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) Whoah, wait a minute! I like getopt() as much as anyone, but I thought we were talking about something to go *inside* the file on the SYNTH BEGIN line(s), not necessarily on the command line. Units may be universal for all synthesized parts in (...) (22 years ago, 21-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) Much better! I've been programming on Windows too much lately (isn't any amount too much? ;^) Kevin (...) (22 years ago, 20-Jan-03, to lugnet.cad.dev)
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| | Seam width
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Hi. Just wondering: How do you calculate the seam width in programs like L3P and LDView? Do you just scale the part by x% ? Or ? Trond Hasse Lie Norway (o\_/o) (22 years ago, 20-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) What about getopt() style parameters, eg: -f foo.dat -l 20 -u cm --filename foo.dat --length 20 --units cm ROSCO (22 years ago, 20-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) Yeah, I thought so. Other options are copying the line before the strupper(), or using strnicmp() or strncasecmp() for the keyword test. The copy method is easier to do in a portable way. (...) I like the named parameters. That makes it easy (...) (22 years ago, 20-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) I'd like to discuss changes before they are made, so I can keep track of new capabilities of the program. (...) Yes. I was trying to make lsynth not case sensitive when it came to recognizing keywords, but I don't like the fact that it changes (...) (22 years ago, 20-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) I don't know about the math, but I do have a few thoughts after a quick peek at the sources. So how should we go about making changes? Discuss them here first, or just put them in CVS with an appropriate comment if we think they won't break (...) (22 years ago, 20-Jan-03, to lugnet.cad.dev)
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| | Re: LDraw Infotip Shell Extension DLL
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Hi ok.. i changed the two mentioned points and uploaded v1.01. Play well Carsten "Jaco van der Molen" <jmolen@globalxs.nl> schrieb im Newsbeitrag news:H90I85.9wE@lugnet.com... (...) in (...) your (...) information (...) un-install. (...) (22 years ago, 20-Jan-03, to lugnet.cad, lugnet.cad.dev)
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| | Re: LDraw Infotip Shell Extension DLL
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OK, this works! It does show up with DAT and LDR extension but... ...could it also be associated with MPD? Furthermore I suggest to explicitely display lines that have useful info in them, for now it displays lines like ROTATION CENTER and ROTATION (...) (22 years ago, 20-Jan-03, to lugnet.cad, lugnet.cad.dev)
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| | Re: LSynth 2.0 Available
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(...) I like the fact the it doesn't use the registry. This mean I can move the LDRAW directory around at will and have to worry about flargging Windows not being able to update itself. You would think something as basic as update all the registry (...) (22 years ago, 20-Jan-03, to lugnet.cad, lugnet.cad.dev, lugnet.inst)
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| | Re: LSynth 2.0 Available
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I agree that it should ask. For example I keep my LDraw files in C:\Program Files\LDraw and MLCAD in C:\Program Files\MLCAD. It was a little awkward to set up, but it works great. If LDraw used a proper Windows installer then this wouldn't be an (...) (22 years ago, 19-Jan-03, to lugnet.cad, lugnet.cad.dev, lugnet.inst)
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| | Re: LSynth 2.0 Available
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(...) Another issue is the ownership of the changes. Do you wish to require authors who contribute changes to assign ownership of the changes to you? If you do not, then the program becomes partly owned by you and all whose code you have accepted (...) (22 years ago, 19-Jan-03, to lugnet.cad, lugnet.cad.dev, lugnet.inst)
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| | LDraw Infotip Shell Extension DLL
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Hello! I was sick and bored and Leonardo did not have the time so i just wrote it. Its the same little expansion to the explorer shell so when you hover your mouse over a LDR or DAT file it will give you the basic header information in a tooltip. It (...) (22 years ago, 19-Jan-03, to lugnet.cad, lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) One last question; I am curious as to why you didn't include LP3AO as a "Power Tool?" This is another one of those no-brainers (creating a GUI for a command line program). Was it due to the timeline of your text? Steven (22 years ago, 18-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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<snip> (...) Thanks Steven. Comments like this are highly motivating. When I started writing LPub, I'd only just heard of L3P, although I new of POV-Ray from way back. It has been quite a learning experience. (...) I learned a lot about L3P writing (...) (22 years ago, 18-Jan-03, to lugnet.cad.dev)
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| | Re: lsynthcp community development project setup on sourceforge
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(...) Maybe we can look forward to it in the next version. (...) LPub is just an amazing tool. I was not a fan of POV-Ray and the LP3 conversion tool to create documents. However, using LPub has encouraged me to begin creating many more (...) (22 years ago, 18-Jan-03, to lugnet.cad.dev)
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| | Re: LSynth 2.0 Available
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(...) OK the installer is slightly less sucky, because now it puts the parts in the LDRAW\Parts directory. Kevin (22 years ago, 18-Jan-03, to lugnet.cad, lugnet.cad.dev, lugnet.inst)
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| | Re: Seeking input on reused user parts in building instructions
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I totally agree with all these comments. This especially rears it's head when doing passenger coaches where I've use the same sub model 36 times in s set of 4 coaches! Which brings up an interesting philosophical question about instruction (...) (22 years ago, 17-Jan-03, to lugnet.cad.dev, lugnet.inst)
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| | Re: lsynthcp community development project setup on sourceforge
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Steven, Hopefully the sourceforge effort will also get some folks that can help me with the mathematical ins and outs of the effort. I contacted Michael about lsynthcp support in MLCAD, but he was already wrapping up the 3.0 release. I'm hoping that (...) (22 years ago, 17-Jan-03, to lugnet.cad.dev)
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| | RE: lsynthcp community development project setup on sourceforge
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Kevin, Excellent idea. Using SourceForge will hopefully garner you some additional support and programming resources to allow you to further LSynth's development. When will LPub be moving to SourceForge? As an aside, I have been reviewing your new (...) (22 years ago, 17-Jan-03, to lugnet.cad.dev)
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| | Re: Seeking input on reused user parts in building instructions
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"Kevin Clague" <kevin_clague@yahoo.com> wrote in message news:H8vFL3.9Js@lugnet.com... (...) [ ... snipped ... ] (...) it to (...) I don't see any down side to doing that. Mike -- Mike Walsh - mike_walsh at mindspring.com (URL) - North Carolina (...) (22 years ago, 17-Jan-03, to lugnet.cad.dev, lugnet.inst)
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| | Re: Seeking input on reused user parts in building instructions
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(...) I remembered this issue the other day and was surprised no one had asked about it. (...) I like the idea of creating the seperate picture, but would prefer to add it to the screen web pages also. (...) Thanks Mike, Kevin (22 years ago, 17-Jan-03, to lugnet.cad.dev, lugnet.inst)
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| | Re: LSynth 2.0 Available
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(...) Installers are highly uninspiring, but I will fix this for the next release (which will happen as soon as I fix and test the installer.) Kevin (22 years ago, 17-Jan-03, to lugnet.cad, lugnet.cad.dev, lugnet.inst)
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| | Re: LSynth 2.0 Available
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I really like your tool, it will save me a lot of time and struggling and allow mw to add to my models I do, hower have a a comment on the installer you use, it sucks.. instead of placing the parts in the correct parts directories it placed them in (...) (22 years ago, 17-Jan-03, to lugnet.cad, lugnet.cad.dev, lugnet.inst)
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| | Re: Seeking input on reused user parts in building instructions
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"Kevin Clague" <kevin_clague@yahoo.com> wrote in message news:H8t9F9.BAt@lugnet.com... (...) parts (...) in (...) was (...) Yeah! I have seen this with many of the train models I have created. In one case I used a sub-model 8 times and LPub (...) (22 years ago, 17-Jan-03, to lugnet.cad.dev, lugnet.inst)
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| | Re: LSynth 2.0 Available
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Hi Ahui, If you are still having problems, just email an example that does not work, or post it here. I will figure it out and get back to you. Kevin (...) (22 years ago, 17-Jan-03, to lugnet.cad, lugnet.cad.dev, lugnet.inst)
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| | Re: LSynth 2.0 Available
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Hi Dave, Right now the installer is too simple. It needs to know where the LDraw directory is, so it can add some parts to your parts directory. It does a simple search for this: LDRAW\MKLIST.EXE on your hard disks. It cannot find it. I'd guess one (...) (22 years ago, 17-Jan-03, to lugnet.cad, lugnet.cad.dev, lugnet.inst)
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