3D Mirror, possible?

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 From:  Dee3 (DMATHO)
160.1 
Hi Michael
I was wondering if it would be possible to add a 3D-Mirror option in order to create a copy of an object using a plane or any 3-points in space?

The attached shows the current process, following a two step-process. Starting from the lower-left to the bottom right, first create a mirrored copy and then, on the top-right, another copy via rotate-by-axis. I believe a 3D-Mirror would cut down on the steps, unless there's something already there I don't know about.

Cheers,

- Diego -
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 From:  Michael Gibson
160.2 In reply to 160.1 
Hi Diego - I might not completely understand, but I think you should be able to complete your mirror there in one step if you switch to the front or right view and then pick the mirror axis along that diagonal, like this:



Sometimes it can help to switch to those other views - since the 3D view's construction plane is located on the XY plane you can get limited by some things there, for things that want to work in reference to the plane such as mirror.

Please let me know if I have misunderstood what you're building there.

But I've made a note to myself to look into adding some 3D mirror options, because I can certainly see that they would be useful in other situations. It will probably be a little while before I'll be able to get to them - it's not a high priority at the moment since doing a mirror + rotate axis is not too terrible of a work-around.

- Michael
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 From:  Dee3 (DMATHO)
160.3 In reply to 160.2 
Hi Michael
you're of course very right! In this case, due to the orthographic orientation of the shapes in the example I gave, I dug my own grave ;) ,it could have been perfectly well resolved with just the one step... but I'm certain you'll agree too, that was an extraordinary circumstance to begin with, especially when using a (free-form) modeler such as MoI.

Thanks for the quick reply and taking note of it, even as it were, for down the road.

Cheers,

-Diego -

By the way, it seems my suggestion on enhancing the Viewing controls in the viewport (post # 135.1) didn't trigger any comments... right?
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 From:  Michael Gibson
160.4 In reply to 160.3 
> Thanks for the quick reply and taking note of it, even as it were, for down the road.

No problem. One reason why I'm not jumping immediately on it is it raises a few questions that don't seem clear at the moment. Another way to define a mirror plane would be by drawing a line that defined the plane's perpendicular. I was wondering if that would be useful as well. But that's quite a lot of stuff - perpendicular, 3 points, or select planar face... I kind of hestitate to add a bunch of things in when some of them might not be used very often and can be done pretty easily with some combination of existing tools... It can tend to be difficult to remove things once they are added.


> By the way, it seems my suggestion on enhancing the Viewing
> controls in the viewport (post # 135.1) didn't trigger any comments... right?

Yup, sorry about that I was kind of thinking about it a bit and I never got around to answering it. I will take a run at it now though! If I seem to forget about something, please don't hesitate to remind me about it.

- Michael
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 From:  Frenchy Pilou (PILOU)
160.5 In reply to 160.4 

< Another way to define a mirror plane would be by drawing a line that defined the plane's perpendicular
hehe that is that I made also here for a "rotation" :D
http://moi3d.com/forum/index.php?webtag=MOI&msg=156.4

< I kind of hestitate to add a bunch of things in when some of them might not be used very often and can be done pretty easily with some combination of existing tools... It can tend to be difficult to remove things once they are added.
sure ;)

EDITED: 11 Oct 2006 by PILOU

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