Subject:
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Re: Creating 47457.dat 2x2x2/3 Sloped&Rounded
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Fri, 1 Oct 2004 03:20:49 GMT
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Viewed:
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4453 times
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In lugnet.cad.dat.parts, Niels Bugge wrote:
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I personally round off the numbers to 4 decimals, but I’ve been known to do
crazy stuff like modelling in 1/100 (max zoom in mlcad) and use 1-24 parts of
high res primitives from time to time.
But I would suggest you to round off to
(at least) two decimals as the default non coplanar threshold check in LDDP
is 0.1, and you would create a lot of non coplanar-errors by rounding off to
less. Does anybody know if the thresholds in other programs (like l3) is
different, or can two decimals be accepted?
Anyways, regarding simplifying parts I think one should always consider the
greebeling effect before erasing small detail (is the 4 pairs some internal
detail? I don’t have the part).
Finally I’d like to congratulate you with your first part, nicely done, now
you just have to BFC it, which is pretty easy. Here’s a tutorial:
http://www.ldraw.org/library/tracker/ref/reviewfaq/
And then I’d just say that I look forward to your tutorial on how to
calculate curved surfaces, conditional lines and I especially look forward to
the translator to a game maker!
And now I’ll finally shut up and go away...
-NB
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Features wish list
For the purpose of improved readability in LDAO, I thought of entering each
vertex with 2 decimal places. Then I discovered the color-coded vertices in
LDDP. It was better, but I still wish the vertices aligned in columns.
Actually, I wish the vertices were objects. As objects, I’d desire certain
properties and functionality.
For example:
First, I layed out a set of 4 T2s along each of the symetrical curved and sloped
edges. As objects, one could layout one side and call a symetry function to set
the other side.
Second, I drew T4s to cover the top surface by cutting and pasting vertices out
of the T2s. Again, as objects, the vertices could be selected as input to
creating the T4s (with proper winding, of course).
Third, I thought of laying out quads along the sloped sides. Instead, I
followed convention and layed out pairs of T3s along the sloped sides. This is
when I wished for a function that would take the vertices and create the T3s
such that ABC is followed by ACD, then DCE, DEF, etc.
I guess I’m too spoiled by the functionality found in 3D modeling software like
Blender
Simplifying parts
I tried to find a similar feature in another brick. The closest I could find is
an 4204.dat Brick 8x16. In the corners are round posts. These are not
represented in 4204.dat. In 47457, the features are positioned such that it
acts as clips. since I have to add T5s and try to figure out BFC, then i will
add these features.
Translating to Game Maker 3D objects
This is going to take some work. I will move on this slowly but surely. My
first challenge is to render only the surface of the model.
Creating Next Part from scratch
I’m working on it! What fun! .
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Message has 1 Reply:
 | | Re: Creating 47457.dat 2x2x2/3 Sloped&Rounded
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| (...) The general standard is to go up to 3 decimal places in part files. I agree, main vertices really don't need more than 1 or 2 places. For derived vertices, more precision may be require to keep everything aligned, so going out to 3 places is (...) (20 years ago, 1-Oct-04, to lugnet.cad.dat.parts, FTX)
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Message is in Reply To:
| | Re: Creating 47457.dat 2x2x2/3 Sloped&Rounded
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| I personally round off the numbers to 4 decimals, but I’ve been known to do crazy stuff like modelling in 1/100 (max zoom in mlcad) and use 1-24 parts of high res primitives from time to time. But I would suggest you to round off to (at least) two (...) (20 years ago, 29-Sep-04, to lugnet.cad.dat.parts, FTX)
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