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Special: 
[DAT] (requires LDraw-compatible viewer)
Subject: 
Re: LDraw-Pattern-Creator (LPC)
Newsgroups: 
lugnet.cad
Date: 
Tue, 7 Jun 2011 20:23:33 GMT
Viewed: 
21961 times
  
From: Reuben Pearse
Date: Freitag, 3. Juni 2011 07:43
To: Nils Schmidt
Subject: Fwd: Re: FWD: LDraw-Pattern-Creator

Hi Nils,

I've posted some details about you LDraw-Pattern-Creator program here:
http://www.pearse.co.uk/lego/links/ldrawpatterncreator/

...and I've encouraged part authors to experiment with the program and >provide feedback.

I hope this is OK. Please let me know if you have other LPC information you >would like me to put on the website.

Thanks

Reuben
reuben@pearse.co.uk

Hi Reuben!

Thank you for hosting my program on your web space, for promoting my program to
other part authors and Thanks to J.C. Tchang for writing this great manual!

I am still working on the LPC.

Here is my TODO-List:
- To write a documentation or a manual
- To implement automatic primitive recognition and substitution (the program identifies capabilities of xxxdisc.dat and xxxndis.dat primitives and 48-primitive counterparts)
Status of implementation: Nearly finished, but it will take two weeks or more to
complete, because of the heavy mathematics in discrete geometry.

Example of this feature:

The method expects triangles like
3 16 0 0 0 0.6561 0 -0.7547 0.89499448 0 -0.44617786
3 16 0 0 0 0.89499448 0 -0.44617786 0.99757668 0 -0.06972006
3 16 0 0 0 0.99757668 0 -0.06972006 0.9483568 0 0.3173471
3 16 0 0 0 0.9483568 0 0.3173471 0.7547 0 0.6561
3 16 0 0 0 0.7547 0 0.6561 0.44617786 0 0.89499448
3 16 0 0 0 0.44617786 0 0.89499448 0.06972006 0 0.99757668
3 16 0 0 0 0.06972006 0 0.99757668 -0.3173471 0 0.9483568
3 4 2 0 2 0.7547 0 0.6561 0.44617786 0 0.89499448
3 16 0 0 0 -0.3173471 0 0.9483568 -0.6561 0 0.7547
3 16 0 0 0 -0.6561 0 0.7547 -0.89499448 0 0.44617786
3 16 0 0 0 -0.89499448 0 0.44617786 -0.99757668 0 0.06972006
3 16 0 0 0 -0.99757668 0 0.06972006 -0.9483568 0 -0.3173471
3 16 0 0 0 -0.9483568 0 -0.3173471 -0.7547 0 -0.6561
3 16 0 0 0 -0.7547 0 -0.6561 -0.44617786 0 -0.89499448
3 16 0 0 0 -0.44617786 0 -0.89499448 -0.06972006 0 -0.99757668
3 16 0 0 0 -0.06972006 0 -0.99757668 0.3173471 0 -0.9483568
3 16 0 0 0 0.3173471 0 -0.9483568 0.6561 0 -0.7547

and converts this input to only two lines
1 16 0 0 0 0.6561 0 0.7547 0 1 0 -0.7547 0 0.6561 4-4disc.dat
3 4 2 0 2 0.7547 0 0.6561 0.44617786 0 0.89499448
The algorithm is very complex to implement for ndis-primitives, but I will make
it. This feature is really nice to have.
- Auto-Rectifie the pattern while exporting the pattern as DAT (I have to ask Philo. He is the author of the program rectifier [http://www.philohome.com/isecalc/rectifier.htm] )
- Implement the CSG Add-function (http://en.wikipedia.org/wiki/Constructive_solid_geometry)
- Minor improvements on DAT- in- and export
- General bugfixing, code- and GUI-cleanup.
- Performance improvements

Thanks for your support

Nils



Can anyone assist with providing translations for English and other
languages? If you are able to help with translating then I would suggest that
you download the zip file here:
http://www.pearse.co.uk/lego/downloads/Manuel-LPC-v1beta.zip

...make amendments and then email me the updated zip file (email address on the
website)

Bye for now

Reuben

I'll translate it into English and German.


Nils



Message is in Reply To:
  Re: LDraw-Pattern-Creator (LPC)
 
(...) J.C. Tchang has kindly put a manual together for the LDraw-Pattern-Creator. At the moment this is only available in French. I have added some links to the manual on the following page: (URL) can browse the manual online or you can download a (...) (13 years ago, 7-Jun-11, to lugnet.cad)

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