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Subject: 
Re: tool for patterned parts
Newsgroups: 
lugnet.cad
Date: 
Sun, 27 May 2007 07:52:37 GMT
Viewed: 
2115 times
  
Anders Isaksson schrieb:
mikeheide wrote:
I thought about a tool to easily author patterned parts.

It should be used like quad2dat but with the following change:

If a part is scanned with a scanner and the part is not flat it should
be able to use the curvature of the part (that already has to exist
as a LDraw part) to make a parallel projection onto that curvature.
(sorry for my bad english).


Is it really worth the work? How many patterned parts have the pattern on a
curved surface, except for the minfig heads?

A couple of years ago I did start making a program that 'back-projected' a
bitmap and let you draw the triangles and quads by hand on top of that. It
includes some rudimentary intelligence, for example snapping to previously
drawn points.

It didn't get finished then, and will probably never be. It's written in
Borland Delphi 5, and anyone interested in taking over is welcome to the
source code.

Hi Anders,

I have found many curved parts with pattern on the curved surface. Also
I think of stickers that can be done with such a program.

I think it could work as follow:
1) Do a scan of the curved part (You need to have 90° angle to the
middle of the patterned surface.)
2) Create a LDraw file from that scan that is flat.
3) Use the new program
3a) You have to tell the program at which point it should be centered
(see point 1)
3b) You have to tell the program the patterned part file.
4) Output will be generated.

Any additional thoughts are welcome.

cu
mikeheide
2)



Message is in Reply To:
  Re: tool for patterned parts
 
(...) Is it really worth the work? How many patterned parts have the pattern on a curved surface, except for the minfig heads? A couple of years ago I did start making a program that 'back-projected' a bitmap and let you draw the triangles and quads (...) (18 years ago, 22-Oct-06, to lugnet.cad)

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