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Hi Mike, As it turns out, my laptop hard disk died since brickfest. Please send me all relevent files and some background on how to recreate. Life has been very busy. Thnks for your patience, Kevin (...) (20 years ago, 23-Sep-04, to lugnet.cad.dev)
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| | Re: LPub mask generation
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"Kevin L. Clague" <kevin_clague@yahoo.com> wrote in message news:I4EJ6K.154K@lugnet.com... [ ... snipped ... ] (...) California (...) converted to (...) list (...) Any luck chasing down the problem we were looking at at BrickFest? Mike (20 years ago, 22-Sep-04, to lugnet.cad.dev)
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| | Re: Converting Polyline to Mesh
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(...) Err, no. That would have required some RTFM on my part, which seriously conflicts with the coefficient of laziness. Somebody turn off that firehose, pronto! (20 years ago, 21-Sep-04, to lugnet.cad.dev, FTX)
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| | Re: LPub mask generation
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(...) I was looking too hard in the wrong place. I've got access to it now. I've installed the component, but I think I have to write a header file for it, so that I can use it under C++ builder. It looks very nice to use. I'm really looking forward (...) (20 years ago, 21-Sep-04, to lugnet.cad.dev)
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| | Re: LPub mask generation
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(...) Do what? Get the source code, or use the png classes? At least for me, clicking on the link takes me to the sourceforge page for PNGImage, up left is a "Download" link which gets the .zip archive ((URL) I just downloaded it again, to make (...) (20 years ago, 21-Sep-04, to lugnet.cad.dev)
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| | Re: Converting Polyline to Mesh
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(...) the instructions on (URL) this page> when you compiled it? ;-) --Travis (20 years ago, 21-Sep-04, to lugnet.cad.dev, FTX)
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| | Re: Converting Polyline to Mesh
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(...) OK. If some makes commercial/research software that outputs LDraw format, it'd be good for us to know about... (...) Well, there's also the bit about Triangle wanting *me* to tell *it* about holes in the area to be filled -- that was one of (...) (20 years ago, 21-Sep-04, to lugnet.cad.dev)
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| | Re: Converting Polyline to Mesh
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(...) Err, twisted is probably a good call. I followed a few links and did see some with free windows executables, and I thought I saw some that mentioned other "normal" formats like STL and/or DXF? Anyhow, I compiled triangle for windows if you (...) (20 years ago, 21-Sep-04, to lugnet.cad.dev)
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| | Re: Converting Polyline to Mesh
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(...) You have a twisted sense of 'lazy'. ;) Or is there something obvious I'm missing? Steve (20 years ago, 21-Sep-04, to lugnet.cad.dev)
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| | Re: Converting Polyline to Mesh
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(...) Well, just in case you change your mind on gcc, it really is easy. (URL) Anyway, thanks for the link. Once I have results, I post them somewhere. Speaking of links and firehoses, here's a short list of alternative triangle mesh generators. (...) (20 years ago, 21-Sep-04, to lugnet.cad.dev)
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| | Re: LPub mask generation
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I forgot a few things. First of all, you'll also need the TCImageFormat class. Second, in TCImage, you'll need to comment out the line that looks like so (unless you want to use my TCBmpImageFormat class): addImageFormat(new TCBmpImageFormat, true); (...) (20 years ago, 21-Sep-04, to lugnet.cad.dev)
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| | Re: Converting Polyline to Mesh
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(...) Uh. Wow. Yeah, that should do what I need. If it can fill in Lake Superior, it should handle my little de-rasterized figure. I suspect that using Triangle on my little polygon-filling exercise will be like using a firehose to water a flower (...) (20 years ago, 21-Sep-04, to lugnet.cad.dev)
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| | Re: Converting Polyline to Mesh
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(...) Oops, found it. (URL) in case I lose it again: Delaunay, triangle, vectorize, mesh, polyline, voronoi, and tesselate! That oughta do it... Don (20 years ago, 21-Sep-04, to lugnet.cad.dev)
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| | Re: Converting Polyline to Mesh
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(...) I coulda sworn I mentioned this here before. (URL) I can't find the reference (something about stained glass window patterns). Oh well. Enjoy, Don (20 years ago, 21-Sep-04, to lugnet.cad.dev)
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| | Converting Polyline to Mesh
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Heya, Can anyone point me to an algorithm for converting a polyline to a triangle mesh? The polyline must be allowed to be highly irregular - concave, definitely. Maybe not ... ummm ... fully connected. I've been doing some googling, but so far I've (...) (20 years ago, 21-Sep-04, to lugnet.cad.dev)
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| | Re: LPub mask generation
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(...) Hi Anders, I have not been able to gain access to the source. Do you have any suggestions on how to do it? Thanks, Kevin (20 years ago, 20-Sep-04, to lugnet.cad.dev)
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| | Re: LPub mask generation
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(...) Both classes are in the TCFoundation directory: TCImage and TCPngImageFormat. To use them directly, you'll also need TCObject and TCAutoreleasePool. However, the only thing they use out of there that I know of is my reference counting stuff, (...) (20 years ago, 20-Sep-04, to lugnet.cad.dev, FTX)
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| | Re: LPub mask generation
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(...) Hi Travis, I've downloaded LDview, and gotten libpng and zlib built under C++ Builder. What classes do you have for reading and writing PNG files based on libpng. I'd like to give them a look. Thanks, Kevin (20 years ago, 20-Sep-04, to lugnet.cad.dev)
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| | Re: LPub mask generation
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(...) This project seems pretty old, but you've set me on the right track. PNG provides compression like JPG and no loss of image quality like BMP. Plus POV-Ray supports alpha channel with PNG. These three combined set me off on the task of (...) (20 years ago, 17-Sep-04, to lugnet.cad.dev)
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| | Re: LPub mask generation
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(...) If you're interested, LDView has two C++ classes that together allow you to write a PNG via libpng. They have the advantage of being much easier to use that libpng itself. Take a look in the LDView source at TCImage.{h,cpp} and (...) (20 years ago, 16-Sep-04, to lugnet.cad.dev)
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