Subject:
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Re: [LDAO] Editor Feedback requested
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Newsgroups:
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lugnet.cad
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Date:
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Fri, 20 Nov 1998 08:41:05 GMT
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Viewed:
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2886 times
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Steve Bliss wrote:
> Jacob Sparre Andersen wrote:
>
> > If you want to use the instructions paradigm, then the
> > proper solution is most likely to let the user have an
> > option for handling every line as a separate step.
>
> Wow. That could mean hundreds of step-images, for large models at
> least.
Yes, but I would probably not keep more images at a time
than what's needed to fill the screen/window.
> > It should of cause be possible to choose a part by pointing
> > at it on the drawings (not as hard as it might sound).
>
> True. I can think of two approaches of the top of my head (use math
> to do 3D hit-testing, or build a part-bitmap during rendering, and
> lookup the clicked pixel in the part-bitmap). But that doesn't help
> if someone accidently hides a piece.
I was thinking of a part-bitmap. I think 3D hit-testing is
slower, even counting the time to make the part-bitmap.
| Now, can someone figure out a solution to the problem of using the
| mouse to drag parts around the drawing?
What makes most sense to me is that you only move the part
in a plane parallel to the image. - You move the pointer in
that plane, so you move the part in that plane. - This will
of cause demand more than one drawing window to create a
model (I would use four: top, side, front, and 3D).
Play well,
Jacob
----------------------------------------------
-- E-mail: Jacob.Sparre.Andersen@risoe.dk --
-- Web...: <URL:http://hugin.risoe.dk/> --
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LEGO: MOC+++c TO+++(6543) TC+++(8880) AQ+++ BV-- #++ S LS++ A-/+ YB72m
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Message has 1 Reply:
 | | Re: [LDAO] Editor Feedback requested
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| (...) Right. Or keep just a few more off-screen images, for interactive performance. If there was a set of maps (color, z-buffer and part) for each element, these could be quickly combined into the display images. (...) Probably. There's not a large (...) (26 years ago, 20-Nov-98, to lugnet.cad)
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Message is in Reply To:
| | Re: [LDAO] Editor Feedback requested
|
| (...) Wow. That could mean hundreds of step-images, for large models at least. (...) True. I can think of two approaches of the top of my head (use math to do 3D hit-testing, or build a part-bitmap during rendering, and lookup the clicked pixel in (...) (26 years ago, 19-Nov-98, to lugnet.cad)
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