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In lugnet.cad.dev, Travis Cobbs wrote:
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Very nice. I don’t author parts, so I won’t be trying it out. However, I
looked at your tutorial, and I have two suggestions:
- Add “Un-Project”, where it takes a projected shape and flattens it automatically on an axis specified by the user (X, Y, or Z).
- Automatically split pattern polygons so that they don’t cross any polygon boundaries of the template part. Use the un-projected geometry that you generated in the above as the “pre-projected” template, and do the splitting while the pattern is still flat.
The first feature above is probably pretty trivial. The second one would
likely be a lot more work, but would make the tool a whole lot more powerful.
--Travis
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For unproject MLCad does the job. Symply select everything and set the
appropriate matrix row at 0. This is perfect for triangle, quads... If you have
primitives you have to later automatically fix the “all zero matrix row” using
LDDP.
The pattern split program is actually a special case of a tool I consider
writing for a long time. It would take two sheets of tri/quads and cut them at
the intersection between the sheets. I am slowly clearing my mind about the
whole process... so some day I’ll try to write it. But it is far from obvious!!!
Also if you manually build the pattern as an overlay of the original shape, you
optimize it (eg avoid teeny triangles), something an automatic cut wouldn’t do.
Philo
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Message is in Reply To:
 | | Re: New Ldraw parts authors tool: Projector
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| Very nice. I don't author parts, so I won't be trying it out. However, I looked at your tutorial, and I have two suggestions: Add "Un-Project", where it takes a projected shape and flattens it automatically on an axis specified by the user (X, Y, or (...) (16 years ago, 7-May-08, to lugnet.cad.dev, lugnet.vikings, lugnet.castle, FTX)
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