 | | Re: open source ldd?
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(...) I'd say it's unlikely. It would be a fairly big undertaking, and since the files can already be viewed in LDD, I'm not sure how much real benefit there would be. Additionally, do you know of any open source cross-platform libraries for (...) (19 years ago, 17-May-07, to lugnet.cad.ldd)
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| | Re: Articles on ldraw.org out of date - I can help
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(...) Well, because MLCad's process is so manual, it is very easy to create MPD files that are incomplete or not in the right order. One of MPD's rules is that the first FILE is the top level model. I've gotten plenty of letters from people who say (...) (19 years ago, 17-May-07, to lugnet.cad.dev.org.ldraw)
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| | Re: open source ldd?
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(...) Sure, I understand and not surprised you already knew this. I just thought maybe Harry (or others reading the post) may not be aware of it. But, since you replied... Any chance of LDView reading and rendering from LXFML in the future? I'm (...) (19 years ago, 17-May-07, to lugnet.cad.ldd)
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| | Re: open source ldd?
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(...) Thanks for the info, but I was actually aware of that. I was just trying to point out that the actions of LEGO as a company imply to me that they aren't interested in 3rd party support with LDD. --Travis (19 years ago, 16-May-07, to lugnet.cad.ldd)
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| | Re: open source ldd?
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(...) Not to mention the fact that it has some form of submodelling feature that could probably be hacked. Tim (19 years ago, 16-May-07, to lugnet.cad.ldd)
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| | Re: open source ldd?
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(...) --SNIP-- (...) Take any LDD 2.0 file and change it's extension from .lxf to .zip. Unzip it with your favorite unzipper tool. Open IMAGE100.LXFML in your favorite text editor. It's XML. Go to town. -PD PS: Love to see a tool to control the (...) (19 years ago, 16-May-07, to lugnet.cad.ldd)
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| | Re: open source ldd?
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(...) I don't know either, but based on what happened before and after the original release of LDD 1.0, I'm going to have to say that I'd find it to be unlikely. Prior to LDD 1.0 being released, someone from Lego contacted a number of LDraw tool (...) (19 years ago, 15-May-07, to lugnet.cad.ldd)
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| | Re: open source ldd?
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(...) I've not heard anything suggesting that addons are possible and I have my doubts that LEGO will be inclined to open its source (or if they even legally can since I believe it uses thrid-party libraries). Tim (19 years ago, 15-May-07, to lugnet.cad.ldd)
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| |
| | open source ldd?
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Hello, what programming language is used for ldd? Is it allowed, possible or even welcome that users can develop addons? Thanks for your replies.... (19 years ago, 15-May-07, to lugnet.cad.ldd)
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| | Re: Snowmobile tread hubs?
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Yes I have just completed a first draft but have not submitted to LDraw yet. It still contains many error but is ready for use. Donald (19 years ago, 14-May-07, to lugnet.cad.dat.parts)
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| | Re: LSynth Service
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Dear Jim, Thank-you so much for this service! LSynth was the program I missed the most from Windows, but your version works flawlessly. Now I can get back to work! Thanks again! (19 years ago, 13-May-07, to lugnet.cad.dev.mac)
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| | Snowmobile tread hubs?
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Anybody working on these wheels? (URL) (19 years ago, 11-May-07, to lugnet.cad.dat.parts)
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| |
| | Re: LDD continuously downloading updates (Mac)
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|
(...) Well, I received some helpful advice from the folks at LEGO. I downloaded the freestanding full version of the program, and installed it. Everything is now working as expected. Chris -- (URL) about brittle bone disease (URL) (19 years ago, 10-May-07, to lugnet.cad.ldd)
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| | Re: personal OMR
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(...) I'm in the middle of some heavy coding now, and I don't want to break to look at something else. But this is something I'm interested in and hopefully will remember to check back on when I'm done with my current project. James (19 years ago, 9-May-07, to lugnet.cad.dat.models.sets, lugnet.cad)
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| |
| | Re: personal OMR
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Thomas Main schrieb: (...) Hi Thomas, sorry. I made a mistake. Now it should work (I have tested now). cu mikeheide (19 years ago, 9-May-07, to lugnet.cad.dat.models.sets, lugnet.cad)
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| | Re: personal OMR
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(...) Mike, Thanks for doing this - but I had trouble getting the file...kept saying it was corrupted. Is this a problem on my end? -- Thomas Main thomasmain@charter.net (19 years ago, 9-May-07, to lugnet.cad.dat.models.sets, lugnet.cad)
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| | Re: personal OMR
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Thomas Main schrieb: (...) Hello Thomas, thank you for your feedback. I have just uploaded a file mpd.zip that contains all MPD-files. You should get it with the following link (URL) am not shure that I will update that file regulary. cu mikeheide (19 years ago, 9-May-07, to lugnet.cad.dat.models.sets, lugnet.cad)
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| | Re: personal OMR
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|
Hello James, thanks for your question. The script that builds the pages reads only the entries in the MPD-File. So far I did not mention any genre or keywords in the MPD-files I have created. This was not my intend as I wrote that. I only wanted to (...) (19 years ago, 9-May-07, to lugnet.cad.dat.models.sets, lugnet.cad)
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| | Re: LDD continuously downloading updates (Mac)
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(...) The update worked fine on my PC. I would recommend calling customer service. I will also mention it to Steve & Jan. Are you able to continue using it by choosing not to update? (I can't remember if it gave me the option or not.) ROSCO (URL) (19 years ago, 9-May-07, to lugnet.cad.ldd, FTX)
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| | LDD continuously downloading updates (Mac)
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I've fallen into an infinite loop. When I launch LDD, LDD informs me that there is a new version, so I agree to download it. LDD goes through its installation procedure, but each time I go back to LDD, it informs me that there is a new version (...) (19 years ago, 9-May-07, to lugnet.cad.ldd)
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| | Re: personal OMR
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(...) Mike, Would it be possible to make this library downloadable as a single file? I would love to have it as a reference. -- Thomas Main thomasmain@charter.net (19 years ago, 7-May-07, to lugnet.cad.dat.models.sets, lugnet.cad)
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| | Re: personal OMR
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|
Does it create the images too? And what about adding the ability to categorize them by genre or keyword? James (...) (19 years ago, 7-May-07, to lugnet.cad.dat.models.sets, lugnet.cad)
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| | Re: personal OMR
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|
It is a long time since the last update. Please visit my peronal OMR at (URL) there are more than 760 set as MPD-file for download. cu mikeheide mikeheide schrieb: (...) snip (...) (19 years ago, 6-May-07, to lugnet.cad.dat.models.sets, lugnet.cad)
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| |
| | Re: Articles on ldraw.org out of date - I can help
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(...) Becuase sadly when I was creating tutorials/articles for the site I only focused on the WINDOWS side of the house since I have zero MAC experience. =( MLCAD is the dominate GUI that users use when using LDraw. (...) Yes the pages were (...) (19 years ago, 4-May-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Articles on ldraw.org out of date - I can help
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--snip-- (...) There's discussions. I really think it's the optimal solution overall. Let's anyone with expertise create, improve or fix articles where they can and for an ldraw audience I think that wiki markup should be easy enough. Tim (19 years ago, 3-May-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Articles on ldraw.org out of date - I can help
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(...) Maybe it could just explain the theory without including instructions how to do it, then show the "easy way". James (19 years ago, 3-May-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Articles on ldraw.org out of date - I can help
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(...) I hate to bring this up, but I've noticed some of the Mac related questions I get may be because the tutorials are all MLCad specific. Is it possible to include information on that page how to do it on Mac with Bricksmith? There is something (...) (19 years ago, 3-May-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Articles on ldraw.org out of date - I can help
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(...) I wouldn't call loading LPub to make an MPD the easy way. The easy way is to use the menus in MLCad. The article is most certainly out of date. (...) But we don't learn how an MS Word document is formatted before using a word processor. (...) (19 years ago, 3-May-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Articles on ldraw.org out of date - I can help
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(...) It does show the "easy" way as well: (URL) reason the EASY way is not shown first is becuase users should learn the THEORY behind what they are doing rather than just learning how to do it. Eg. You can use a calculator to do multiplication. (...) (19 years ago, 3-May-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Articles on ldraw.org out of date - I can help
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(...) Any reason why we'd want that instead of just wiki.ldraw.org, or ldraw.org/wiki/? Dan (19 years ago, 2-May-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Inline POV code in official parts?
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(...) Well, maybe others don't care about visible polys when it should be smooth, but it makes all the difference in the world to me. (...) Well, yeah. But that is better than everyone inventing their own POV- Ray code to make their own parts. How (...) (19 years ago, 2-May-07, to lugnet.cad.dev)
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| | Re: Articles on ldraw.org out of date - I can help
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(...) Strike that. We can add you as an article editor. You simple need to email us with your LDraw User ID. -Orion (19 years ago, 2-May-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Inline POV code in official parts?
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(...) The LDraw POV project ((URL) was created with the intention of someday becoming the de-facto, if not the actual, official LDraw compatible POV repository. I'll admit that it has languished for sometime (it's been almost 4 years sine I (...) (19 years ago, 2-May-07, to lugnet.cad.dev)
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| | Re: Inline POV code in official parts?
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(...) It doesn't really gain you much if you are just converting the LDraw parts directly - l3p does that just fine, and fairly fast. The only advantage of a POV-ray library is when you start adding POV-ray specific stuff, eg: replace the curve (...) (19 years ago, 1-May-07, to lugnet.cad.dev)
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| | Re: Articles on ldraw.org out of date - I can help
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(...) I'd see it as a side-wiki probably. Move as much content as people are willing to open source across but keep the best articles fixed on ldraw.org. Would mean anyone could edit tutorials etc. but we'd have fixed versions. Tim (not speaking as (...) (19 years ago, 1-May-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Articles on ldraw.org out of date - I can help
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(...) Hmm - an ldraw wiki? That's a good idea, and it's not hard. For example you could sign up for a wiki on pbwiki.com (ldraw.pbwiki.com is available) and we can transfer the existing content there and move the links on the existing site to point (...) (19 years ago, 1-May-07, to lugnet.cad.dev.org.ldraw)
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| | Re: Inline POV code in official parts?
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Why not make official POV-Ray Lego bricks and skip the whole LDraw to POV-Ray conversion? Use the same names, scale, and coordinates and all you need is a small script to convert the LDraw lines into POV- Ray lines using the same translations. Or (...) (19 years ago, 1-May-07, to lugnet.cad.dev)
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| | Re: Inline POV code in official parts?
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(...) More than three years have passed, the only thing that has happened is that the SteerCo and/or the Standard Committee has decided not to allow EmbPOV in the official Parts folder. A vauge discussion on creting yet another folder for Ldraw POV (...) (19 years ago, 1-May-07, to lugnet.cad.dev)
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| |
| | Re: Hair for female minifigs?
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(...) Yes, I am very much wanting this too. Creating a female hair using solid objects (how Anton's library works) is a bit daunting. POV-Ray can render meshes, and I have thought of modeling the hair in a real 3d app like modo or Maya and importing (...) (19 years ago, 1-May-07, to lugnet.cad)
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| | Re: Articles on ldraw.org out of date - I can help
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(...) Hi William, At the moment I think it's only the webmasters who can edit articles (might be nice to have an ldraw wiki one day but...) so if you email us (webmaster@ldraw.org) with a list of things you've noticed and/or suggested improvements (...) (19 years ago, 1-May-07, to lugnet.cad.dev.org.ldraw)
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| | Articles on ldraw.org out of date - I can help
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I was looking through some of the articles on ldraw.org and found some to be out of date or to have errors. I'd be happy to help clean this up but I don't know what the process is to get access or to submit changes...? For example (URL) has a long (...) (19 years ago, 1-May-07, to lugnet.cad.dev.org.ldraw)
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| | Hair for female minifigs?
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Hello, I would like to make some CGI brick films and have run into a problem with finding hair for the female characters. The only parts I know of for female characters are the shoulder-length hair and the hair with pigtails. Has anyone made an (...) (19 years ago, 1-May-07, to lugnet.cad)
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| | LDraw.org's April 2007 Model and Scene of the Month Winners
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Congratulations to the winners of the April 2007 Model/Part Of The Month (MOTM/POTM) contests: (URL) MOTM, USS-Wolfram by Emory Dunn> (URL) Part, Minifig Torso with Telephone Pattern by Michael Heidemann (mikeheide)> (URL) Desired Part, Minifig (...) (19 years ago, 1-May-07, to lugnet.cad, lugnet.cad.dev.org.ldraw, lugnet.announce, FTX)
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| | Re: LDD Model of GG-1 Electric Locomotive - Advice Requested
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(...) NOW you tell me :-) Actually I managed to get it built, but it wasn't easy. (...) That doesn't seem to help, as I did a fresh install of the program last night just for this - my wife's Mac didn't have it installed. (...) OK, I will do that (...) (19 years ago, 30-Apr-07, to lugnet.trains, lugnet.cad.ldd, FTX)
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| | Re: LDD Model of GG-1 Electric Locomotive - Advice Requested
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(...) Glad that you ordered the GG1! This isn't the first complaint about instructions generation in LDD, unfortunately. I would suggest trying the different instructions modes (there's one for vehicles, buildings, and Technic) to see if you have (...) (19 years ago, 30-Apr-07, to lugnet.trains, lugnet.cad.ldd, FTX)
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| | Re: Trapezoid flag 2 X 2 unknown part number
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(...) This is part 44676 and already on the Parts Tracker at : (URL) (19 years ago, 29-Apr-07, to lugnet.cad.dat.parts)
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| |
| | Trapezoid flag 2 X 2 unknown part number [DAT]
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Here is a model for the trapezoidal flag 2 X 2. The part had no visible number so any idea what to name it? 0 Flag 2 x 2 trapezoid 0 Name: unknown? 0 Author: Mark Kennedy 0 BFC CERTIFY CW 1 16 0 10 30 0 0 2 10 1 0 20 0 0 rect.dat 1 16 0 20 10 2 0 0 (...) (19 years ago, 29-Apr-07, to lugnet.cad.dat.parts)
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| |
| | Re: Very hard to find ldconfig.ldr
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(...) Thanks and done. Tim (19 years ago, 28-Apr-07, to lugnet.cad.dev.org.ldraw, FTX)
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| | Re: Very hard to find ldconfig.ldr
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(...) Oooo, no they are not. The one on LDraw.org contains a bottom subsection of newer colors—such as flesh and Maersk blue but not Trans Orange—which are not part of the standard distribution. I had no idea there were official color codes for (...) (19 years ago, 28-Apr-07, to lugnet.cad.dev.org.ldraw, FTX)
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| |
| | LDD 2.0 - Inventory of a MOC
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|
Hi, Once I create a moc in LDD 2.0 (or open elseone's moc) how do I get the list of the parts? Also, can I "Try to Build it" on peeron? (I understand that if the LDD->LDraw conversion was working fine I could "kill these two rabbits at once".) (...) (19 years ago, 27-Apr-07, to lugnet.cad.ldd)
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| | LDD PRR T1 #6110
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|
For my next LDD MOC, I built a PRR T1 #6110 (4-4-4-4 duplex-drive steam locomotive). I've uploaded it to the Lego® Factory, so once it is approved you can take a closer look. My new BBB wheels arrived in the mail today, so this may be the one that I (...) (19 years ago, 27-Apr-07, to lugnet.trains, lugnet.announce.moc, lugnet.cad.ldd, FTX)
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| | Re: Very hard to find ldconfig.ldr
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(...) Personally, I'd have used the one from the official library download. IIRC, the one you linked to is the same. (19 years ago, 26-Apr-07, to lugnet.cad.dev.org.ldraw)
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| |
| | Very hard to find ldconfig.ldr
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|
Before I found the direct link to (URL) here on a lugnet discusion, I searched for ldconfig.ldr at ldraw.org for quite a long time without succeess. I tried the Search function, entering ldconfig.ldr. It came up with: "Downloads: no downloads (...) (19 years ago, 26-Apr-07, to lugnet.cad.dev.org.ldraw)
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| | Re: NEW VERSION! Re: Conversion file for ldraw to ldd
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(...) Well it took al little longer than I thought but I have all the ones done I could figure out. Some only import or export one way, others I have no clue on why they do not work, some do not have official LDR files yet. But here is the updated (...) (19 years ago, 23-Apr-07, to lugnet.cad.ldd)
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| |
| | Re: L3P On Strike
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|
(...) Thanks Lars, Rosco and Tim. At last, I found what was wrong. I ran msconfig and discovered a junk character presented as a "wide pipe" (or black rectangle) at the end of LDRAWDIR line. It is also visible in original MS Notepad, but not in (...) (19 years ago, 23-Apr-07, to lugnet.cad.ray)
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| |
| | Re: L3P On Strike
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(...) If your C:\Windows\ldraw.ini contains: [LDraw] BaseDirectory=f:\LDraw it should not be necessary to set the LDRAWDIR environment variable also. Though (URL) might give the opposite impression L3P first uses LDRAWDIR if set, otherwise it looks (...) (19 years ago, 23-Apr-07, to lugnet.cad.ray)
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| | Re: L3P On Strike
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(...) In Windows XP, they should be set by Control Panel / System / Advanced / Environment variables. I put mine in the system variable section. Earlier versions of Windows may be different, although I seem to remember it was always similar. ROSCO (19 years ago, 22-Apr-07, to lugnet.cad.ray)
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| | Re: L3P On Strike
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(...) Yes, it did the trick! I just pasted "SET LDRAWDIR=F:\LDraw" into the batch file and L3P went nicely back to work. Now I have to figure out how to remind Windows please to use its enviroment variables... Thanks again! /Tore (19 years ago, 22-Apr-07, to lugnet.cad.ray)
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| | Re: L3P On Strike
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(...) Sometimes Windows seems to have a hard time remembering environment variables in DOS boxes (I'm sure there's some long, complicated and stupid system to it). Maybe add something to set them to the batch files and see if it works. Tim (19 years ago, 22-Apr-07, to lugnet.cad.ray)
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| | Re: L3P On Strike
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(...) Thanks for your quick reply. Yes, it is my method of marking that the file represents one animation frame. '@' is a legal filename character and has worked before, but to be 100% sure, I removed it from the batch file as well as from the model (...) (19 years ago, 22-Apr-07, to lugnet.cad.ray)
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| | Re: L3P On Strike
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--snip-- (...) Is the above '@' verbatim? Could it be causing the problem? Tim (19 years ago, 22-Apr-07, to lugnet.cad.ray)
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| |
| | L3P On Strike
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I have used L3P for years, and suddely it went on strike. AutoExec.bat still contains: SET LDRAWDIR=F:\LDraw And the SET command still outputs: LDRAWDIR=F:\LDraw And C:\Windows\ldraw.ini still contains: BaseDirectory=f:\LDraw But running the .bat (...) (19 years ago, 22-Apr-07, to lugnet.cad.ray)
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| |
| | Re: Should MLCad be able to run on Windows Vista?
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(...) It runs fine. (19 years ago, 20-Apr-07, to lugnet.cad.mlcad)
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| | Re: Should MLCad be able to run on Windows Vista?
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(...) I am running MLCad and LDView on Vista without any issues. I haven't tried any others, but I hope this helps. -Duane (19 years ago, 20-Apr-07, to lugnet.cad.mlcad)
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| | Should MLCad be able to run on Windows Vista?
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Subject speaks for it's self. I got a question from a Dutch Lowlug member regarding running MLCad (and other LDraw related software) on Windows Vista. Does anyone have experience in doing so? Thanks. Jaco (19 years ago, 20-Apr-07, to lugnet.cad.mlcad)
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| | Re: Help need
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(...) Si, accosento that the "pipistrello" part is not the best to begin with as an unexperienced LDraw author. I had it in my LDraw todo-bucket before I sold my LEGO collection. I regret that I didn't withhold that bucket from the deal, or I could (...) (19 years ago, 17-Apr-07, to lugnet.cad.dat.parts)
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| | Re: Help need
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(...) ciao miriana, la creazione di parts (specialmente di un freeform come il pipistrello) richiede una certa esperienza CAD per raggiungere un risultato soddisfacente in breve tempo - e comunque prima che il tutto diventasse troppo frustrante. se (...) (19 years ago, 17-Apr-07, to lugnet.cad.dat.parts)
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| |
| | Re: A Cool Viaduct
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|
(...) It's definitely not Mac specific. I know someone using a PC who's had the problem too. Tim (19 years ago, 17-Apr-07, to lugnet.trains, lugnet.cad.ldd)
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| |
| | Re: A Cool Viaduct
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|
(...) Oh yeah, no problem about calling me Jason. It happens a lot in real life to me, too. I guess it could be a Mac-specific bug. If you know of any other Mac LDD users (or have a spare Mac box around), perhaps they could download this model and (...) (19 years ago, 17-Apr-07, to lugnet.trains, lugnet.cad.ldd)
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| |
| | Re: Model scales?
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|
(...) You can do this directly in your LDraw model. The most direct way is to open your model file in a text editor (like Notepad). Then add a new line for your reduced-scale model: 1 16 0 0 0 .5 0 0 0 .5 0 0 0 .5 MyHalfScaleModel.ldr The three .5 (...) (19 years ago, 17-Apr-07, to lugnet.cad)
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| | Help need
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|
Hi! I'm Miriana, from Italy. I'm a Lego fan and I need help to make own part. Now I'm making howgwarts castel and I noticed that some parts are not on database. Can I make them by my own? For example if I want make bat part (30103.dat) how can I (...) (19 years ago, 17-Apr-07, to lugnet.cad.dat.parts)
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| |
| | Re: Model scales?
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(...) Uhh, I meant Erwin. Sorry. -Orion (19 years ago, 17-Apr-07, to lugnet.cad)
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| |
| | Re: Model scales?
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(...) Hi Edwin, Look in the L3P file for the main model reference. For example: object { _6825_dot_mpd #if (version >= 3.1) material #else texture #end { Color7 } } Now all you need to add is a scale directive (I've indented the original code for (...) (19 years ago, 17-Apr-07, to lugnet.cad)
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| | Model scales?
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|
I have seen some Pov-Ray renderings that a normal scale model placed on a mini or nano scale model, How to do that? I really want to know the way to do it. Can anyone help? Erwin~ (19 years ago, 16-Apr-07, to lugnet.cad)
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| |
| | Re: DATheader
|
|
Willy Tschager schrieb: (...) -- snip (...) Sorry, my webspace was full. I have deleted some old versions.. Now all works fine (I have tested it!). I recommend all to update to the latest version! cu mikeheide (19 years ago, 16-Apr-07, to lugnet.cad)
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| |
| | Yet Another Color List
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|
As if there weren't enough of color lists, I've also made one myself.. This one is from an L3 user's point of view, that is L3Lab and L3P. So far, it lists colors from ldconfig and Lugnet Color Images Guide, but I may add other sources. For a user (...) (19 years ago, 15-Apr-07, to lugnet.cad, lugnet.color)
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| |
| | Re: DATheader
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(...) version 1.1.1 and 1.1.0 at: (URL) not found :'-( FEHLER 404 Die gewünschte Internet-Seite ist nicht erreichbar. Überprüfen Sie bitte die Adresse oder versuchen Sie es später noch einmal. bye, w. (19 years ago, 15-Apr-07, to lugnet.cad)
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| | Are the metallic colours defined in LDraw?
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Hi all, I was wondering if the metallic colours from Racers sets etc (what I call faux-chrome) have ldraw colours. I can't find the numbers for them but that doesn't guarantee they don't have numbers. In my opinion there should be if there is not as (...) (19 years ago, 15-Apr-07, to lugnet.cad)
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| |
| | Re: DATheader
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|
I have just uploaded a new version (1.1.1). What has changed: Version 1.1.1 The following testing will be done additionally if you want to save the file: Now you have to set a Liscense Type and BFC Statement. Also you need to set the Author Name. A (...) (19 years ago, 14-Apr-07, to lugnet.cad)
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| | Re: Save the 10183 trains!
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In lugnet.trains, Jeroen de Haan wrote: ... (...) In working with LDD, I've found a couple of tricks. First, even in the instruction mode you can change your viewpoint to see the bricks that have appeared (a "highlight new bricks" feature in the (...) (19 years ago, 13-Apr-07, to lugnet.trains, lugnet.cad.ldd, lugnet.dear-lego)
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| | Re: Another matrix inverse question (and answer?)
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(...) Yes, that makes sense. Looking back at Travis's code, I see that's basically what's happening there, except that some references to the original matrix should be references to the inverse matrix. He probably used it only to invert rotations (...) (19 years ago, 11-Apr-07, to lugnet.cad)
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| | Re: Another matrix inverse question
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(...) Som further clarification... I was back in the 3x3 matrix world when I wrote this: the true inverse of a rotation + translate in psuedo-4x4 notation is as follow [ R11 R12 R13 x R21 R22 R23 y R31 R32 R33 z 0 0 0 1 ] goes to [ R11 R21 R31 xp (...) (19 years ago, 11-Apr-07, to lugnet.cad)
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| | Re: Another matrix inverse question (and answer?)
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(...) If it's only rotations then it should make sense. Another way of passing the information is as follows (M,x) where M is the matrix and x is the translation vector the inverse of this is (Mi,-Mi x) which you can see by showing that an operation (...) (19 years ago, 11-Apr-07, to lugnet.cad)
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| | Re: Another matrix inverse question [DAT]
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(...) You might want to check your row/column order for the converted code from LDView. At least conceptually, I always invision transformation matrices like so: A B C X D E F Y G H I Z 0 0 0 1 Notice that the translation info is in the last column, (...) (19 years ago, 11-Apr-07, to lugnet.cad)
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| | Re: Another matrix inverse question (and answer?)
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(...) I think I just answered my own question. I applied the inverse rotation (calculated by swapping the off-diagonals) to the translation row of the original transformation and then negated it to get the translation row in the inverse. That worked (...) (19 years ago, 11-Apr-07, to lugnet.cad)
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| | Re: Another matrix inverse question
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(...) I can see the advantages of swapping the off-diagonals for inverting the rotation(s), but that still leaves the question of how to invert translations. In a current example I'm looking at, a minifig hand, the hand is rotated 45 degrees, (...) (19 years ago, 11-Apr-07, to lugnet.cad)
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| | Re: Another matrix inverse question
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(...) Quarternions are, IMO, a bad way to do what matrices do well. For a rotation you don't need to (and shouldn't) calculate the inverse by a routine. Just transpose (swap the off-diagonals) and you have the inverse. There's no point running (...) (19 years ago, 10-Apr-07, to lugnet.cad)
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| | Re: Another matrix inverse question
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Thanks for the information, everyone. Although the test case I posted was arbitrary, I did some other tests with matrices that were used for rotations and translations. The upper-left 3x3 seemed to be OK, but the bottom row had problems. I'm (...) (19 years ago, 10-Apr-07, to lugnet.cad)
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| | LSynth Service
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Hi, all. I've taken the liberty of fiddling around with the LSynth 2 source code a little bit more to create an LSynth Service, a text-processing extension for Mac OS X that lets you run LSynth just about anywhere you can edit text. The service (...) (19 years ago, 10-Apr-07, to lugnet.cad.dev.mac, lugnet.cad.dev, lugnet.cad)
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| | Re: Another matrix inverse question
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(...) Hi Travis, Looking at the java version of your inversion routine I would guess that it will work for almost any 3x3 matrix + 1x3 translation (the 4x3 + 1 form). Where it will have problems is in matrices for which one or more of the (...) (19 years ago, 10-Apr-07, to lugnet.cad)
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| | Re: NEW VERSION! Re: Conversion file for ldraw to ldd
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Hi Mike, Couple of ideas for a couple of the bugs. (...) Did you triy transparent and opaque? (...) Did you try 30039? (...) Tim (19 years ago, 10-Apr-07, to lugnet.cad.ldd)
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| | Re: Another matrix inverse question
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(...) Sorry about that. I wrote that code so long ago that I forgot that it wasn't a fully general-purpose matrix inversion routine. (Note that it is the way it is so that it will perform better, not because I was too lazy to do the whole shebang.) (...) (19 years ago, 10-Apr-07, to lugnet.cad)
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| | Re: Another matrix inverse question
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(...) I think you've converted Travis' code properly, but just looking at the code, I'd say it's only intended to produce the inverse of the upper-left 3x3 matrix. None of the other rows or the determinant depend in any way on the 4th row, and it's (...) (19 years ago, 10-Apr-07, to lugnet.cad)
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| | Another matrix inverse question
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Hello, I read James Reynolds' question about inverse matrices and the responses with interest since I similar questions about matrix inverses. I used Travis's TCVector::invertMatrix code as the base for a Java function. Other than the change to Java (...) (19 years ago, 10-Apr-07, to lugnet.cad)
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| | Re: NEW VERSION! Re: Conversion file for ldraw to ldd
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(...) I just uploaded my version 1.01e. This is what I have fixed and found as of today. I’m still working on some problem ones below and I’m at a loss on what to do if anything I could do. If you already downloaded the 1.01A through D you will have (...) (19 years ago, 10-Apr-07, to lugnet.cad.ldd)
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| | Re: POV Color Cheat! Turn Pink into Medium Blue
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(...) I thought it was, but in this case it wasn't. The color 24 line can be skipped. And the double pigment declaration was just a pure mistake; one definition is of course sufficient. :) /Tore (19 years ago, 9-Apr-07, to lugnet.cad.ray)
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| | Re: POV Color Cheat! Turn Pink into Medium Blue
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(...) Good to know. Thanks! (...) I kind of recall that. In some cases, I've seen that L3P ignores an LDraw file with just Type 0 lines. I haven't checked if the IFPOV code makes it not ignore C13-73.dat, but I just did it in a routine manner. /Tore (19 years ago, 9-Apr-07, to lugnet.cad.ray)
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| | Re: POV Color Cheat! Turn Pink into Medium Blue
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(...) If you want to see the medium blue in LDView, just add the following line to C13-73.dat (anywhere outside the IFPOV section): 0 !COLOUR Medium_Blue CODE 13 VALUE #6E99C8 EDGE 0 Tore, is the color 24 line in the file necessary in order to make (...) (19 years ago, 9-Apr-07, to lugnet.cad.ray)
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| | Re: POV Color Cheat! Turn Pink into Medium Blue [DAT]
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(...) This is a great idea that deserves to be highlighted while we're waiting for L3P and other programs to support ldconfig.ldr! Inpired be the objects like timers, dialog objects, menu items etc I add to a Form in a Delphi project, I just came up (...) (19 years ago, 9-Apr-07, to lugnet.cad.ray)
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| | Re: how does a line ends?
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(...) Now that I'm at work, I'm able to look at Microsoft's implementation of fgets for Visual Studio 2005. They do a lock on the file prior to their loop, then call _fgetc_nolock to get each character, instead of fgetc or fread. (That's an (...) (19 years ago, 9-Apr-07, to lugnet.cad, FTX)
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