Subject:
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In progress ... Minifig Head Darth Maul Pattern
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Newsgroups:
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lugnet.cad
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Date:
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Mon, 15 Jan 2001 09:19:10 GMT
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Viewed:
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451 times
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Just thought I'd let people know I'm working on this (as Franklin Cain and
Paul Easter have known for a while, amongst others). Since undertaking this
part I've realised how much work goes into authoring a patterned part - you
can't just slap the pattern on, you have to fit it into the part faces. My
first mistake was to not check existing parts, so I just went ahead and drew
the pattern as triangles and quads, and later when I tried rendering the
pattern on part 3626 realised that it was a complete mess. I've been working
through the dat splitting the triangles and quads where they meet vertexs,
and to help me I wrote a simple app in VB to load in the vertexes of 3626b
as a wireframe and load the triangles and quads of my dat as red polygons,
thereby easily allowing me to see where the edges don't meet. Luckily I had
only done the main part of the pattern before I realised my mistake, so once
I've tidied up the large pattern I should be able to get the rest done
pretty quickly. Hopefully I will be adding more to my app in the near future
so I can load a bitmap and plot points around the patterns, and then load a
part mesh and automatically split the pattern at the part edges, making
pattern authoring much simpler than it appears to be at the moment, and
given a 3D mesh also adjust the Z co-ord automatically to keep the pattern
on the faces.
You can see an image of my app showing the head mesh and the Maul polygons
I've done so far at http://www.brickshelf.com/cgi-bin/gallery.cgi?i=27975 -
if you look carefully you can see that the outer areas overlap the mesh
which is where I am currently correcting the co-ords.
I've also loaded the pattern into MLCad and put it together with the 3626b
subpart for scale comparison, which is at
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=27976 - the Z co-ords are
not quite correct which is why the top-down view shows a lumpy line and
nothing folded back for the upper edges of the head, but apart from that I'm
quite pleased with what I've done so far.
Time permitting I hope to have this part completed in the next couple of
weeks, although I have got 4 new servers to set up here, plus a firewall,
and configs to connect to a new ISP, and I'm going to Seattle all next week
(although I might have my laptop with me to work on this in the evenings),
and numerous other things to keep me busy ...
Dan
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Message has 2 Replies:
 | | In progress ... Minifig Head Darth Maul Pattern - Phase 2
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| I've managed to get a little more done thanks to Paul Easter - my VB app now interfaces to his trig.xls spreadsheet to calculate the Z co-ords for points given the X and Y and 3 vertices of the polygon on which the point sits. I could have put the (...) (23 years ago, 18-Jan-01, to lugnet.cad)
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