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Subject: 
Re: Suggestion for new meta command & help request
Newsgroups: 
lugnet.cad.dev
Date: 
Tue, 25 Apr 2000 06:14:22 GMT
Viewed: 
894 times
  
In lugnet.cad.dev, Steve Bliss writes:
In lugnet.cad.dev, Michael Lachmann wrote:

What would you suggest as the best way to define the rotation point? Please • try
to describe it as clear as possible from the user point of view! What should
the user press or do in order to define this center point?

Like Fredrik said, you should use the origin as the rotation point for parts • and
other subfiles.  Most parts have been written with the idea that the part • would
be rotated around the origin.

Also, rotating subfiles on the origin allows advanced modelers to cleanly
control the functioning of their advanced models.  When a section of the model
needs to rotate on a hinge or axle, they can put the rotating section in a
subfile, making sure the section is positioned with the rotation-point at the
origin.

One thing MLCad could do is to base the snap-to movements on the local
dimensions of the part being moved.  So if I rotate a 2x4 brick 90 degrees
around X (so it's sideways), then move it downward, Y should change by +5, not
the normal +4.

<SNIP>

Steve

Ha, sorry for that, but you know what MLCad did first?
It was rotating the part arround it's origin. But what happened?

Example: (the star is the origin)

+--+
|  |
*--+

now rotated ...

*-+
| |
| |
+-+

... and people (not all) complained: The view is so small and I can't see the
part anymore after rotating it ...
So I started to rotate the part over it center so that the center of the part
is on the same place after the rotation ... and this is where all the problems
started.

And now I revert back, it's better the part goes out of view, as if it is
miss-placed ... and Chuck wrote another article later than you wrote it, and
had I think a very good idea, I'll give it a try!

But thank you Steve ... at least your words prove the I have to go back to the
original rotation method.

Michael



Message is in Reply To:
  Re: Suggestion for new meta command & help request
 
(...) Like Fredrik said, you should use the origin as the rotation point for parts and other subfiles. Most parts have been written with the idea that the part would be rotated around the origin. Also, rotating subfiles on the origin allows advanced (...) (24 years ago, 24-Apr-00, to lugnet.cad.dev)

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