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Edit Question: Rotation

kurt7D8 Avon
Location: Fumb
Join date: 1 Aug 2009
Posts: 42
12-20-2009 23:27
I've hung a painting and it is turned a few degrees too far to the left. I can't find any edit tool to rotate clockwise or counterclockwise.
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Chosen Few
Alpha Channel Slave
Join date: 16 Jan 2004
Posts: 7,496
12-21-2009 00:44
Right-click on the object, and select Edit on the pie menu. Hold down ctrl, and you'll see three colored rings appear. These are rotational manipulator handles. Hover your mouse over one, and you'll see it light up. This indicates that your mouse is now in position to grab the handle in order to rotate the object. In this context "grab" means click and drag. So, just grab whichever handle is oriented to rotate your painting in the direction you want it to go, and rotate away.

If you've got Use Grid enabled in the editor, you'll see a white compass or protractor appear as soon as you click and hold on a handle. Drag the mouse over the ledger lines on this to snap the object's rotation to the lines. This makes for fast, easy alignment with cardinal directions and other major rotational intervals.


Alternatively, you can also rotate the object by punching in numbers, instead of moving things by hand, if you prefer. With the painting selected, click on the Object tab in the editor. Toward the bottom left, you'll see three fields for rotation. Simply enter the number of degrees by which you want the painting to be rotated on each axis.

Note, these numbers are absolute, not relative. So if you want to rotate the painting, say, 3 degrees on Y, you wouldn't just enter a 3. You add 3 to whatever the current number is. If it's currently 87, for example, change it to 90. Make sense?
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Gaia Clary
mesh weaver
Join date: 30 May 2007
Posts: 884
12-21-2009 03:39
In addition to what Chosen has written please check that your Ruler is set to "local"
By default it is set to "World" and you might encounter the problem that you are rotating your picture right into the wall ;-)

You find the Ruler selection list in the upper region of the edit-popup box.
Chosen Few
Alpha Channel Slave
Join date: 16 Jan 2004
Posts: 7,496
12-21-2009 07:47
Gaia, wouldn't the chances of rotating part of the painting through the wall be equal in all ruler modes? I'm not sure quite what you're suggesting.
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Gaia Clary
mesh weaver
Join date: 30 May 2007
Posts: 884
12-21-2009 09:26
Most probably a picture is placed on the wall with its "image surface normal" parallel to the "wall surface normal". Hence rotation around that "normal" axis should make the picture be adjusted relative to the wall.

So when you are in Local ruler mode, the rotation handle is oriented such that you can easily rotate "on the surface of the wall" while in World ruler mode the rotation handle will be oriented relative to the world coordinates, which is probably not how the picture is oriented.

I suspect that i am overlooking something, maybe a mode or function i am not aware of ?
Chosen Few
Alpha Channel Slave
Join date: 16 Jan 2004
Posts: 7,496
12-21-2009 10:46
Nah, I don't think you're overlooking anything. I think we're just both seeing the problem a little differently. Here's how I'm seeing it:

1. If the wall is vertical, as most walls are, then World mode will be really, really easy. Simply snap the rotation to 0 on both X and Y, and then spin the painting around Z until it's facing the same direction as the wall.

-OR-

2. If you want to be able to snap the painting to the wall's exact rotation, you'd want to use Reference mode. Select the wall, and press shift-G (with chat closed, of course), to reference it. Now select the painting. Those white compasses I mentioned earlier will now be oriented to match the wall's exact rotation. Simply snap the painting into alignment with the cardinal directions on each axis, and you're all set. This will work with equal ease, whether the wall is vertical or not.



Reference mode is really the best thing to use whenever you want to align anything with anything else. That's what it's for. World mode will usually work well for things like paintings, since walls are almost always vertical, but it's not quite as guaranteed as Reference. Local mode won't be helpful for anything except eyeballing it. Make sense?
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Gaia Clary
mesh weaver
Join date: 30 May 2007
Posts: 884
12-21-2009 14:16
so i overlooked Reference mode!
Indeed it sounds like Reference mode is better suited to the task than local mode ;-)

But Vertical walls... They can still be rotated along the Z-axis... Which will probably make rotations in World-mode unusable in this case, but it will work for local mode (mostly) and reference mode (ever).

Now "everything there has to be said has been said ?" ;-)

Cheers,
gaia