David Thomas Posted January 13, 2011 Share Posted January 13, 2011 I've always wondered what the extra options are in the Triball right click menu when two options to Orient Tribal appear: Orient Triball to global (Eliminate Mirroring) Orient Triball to global (Preserve Mirroring) and similarly for the Orient Triball to Active coordinates. What do they mean and why have they appeared for some parts. See image Thanks Quote Link to comment Share on other sites More sharing options...
IronKevin Posted January 13, 2011 Share Posted January 13, 2011 Those options appear when an object has been mirrored. One retains the mirrored state while orienting to global, the other does not. Quote Link to comment Share on other sites More sharing options...
Cary OConnor Posted January 13, 2011 Share Posted January 13, 2011 The other option is when you create local coordinate systems and activate them. You can have the TriBall align to the global or the local active coordinate. Quote Link to comment Share on other sites More sharing options...
David Thomas Posted January 13, 2011 Author Share Posted January 13, 2011 Those options appear when an object has been mirrored. One retains the mirrored state while orienting to global, the other does not. 30873[/snapback] What do you mean by "retains the mirrored state" what "state" is there to maintain ! Quote Link to comment Share on other sites More sharing options...
IronKevin Posted January 13, 2011 Share Posted January 13, 2011 Just try it, rotate 2 parts to be skewed from Global Coordinates Mirror them both with the TriBall Then use a different Orient to Global option on each. Quote Link to comment Share on other sites More sharing options...
Cary OConnor Posted January 13, 2011 Share Posted January 13, 2011 Basically a shape has a mirror transformation on it. When you select Align to Global it can either maintain the mirror transformation on the shape and align or remove the mirror and align. If you test what Kevin stated, you will see this behavior. Cary Quote Link to comment Share on other sites More sharing options...
David Thomas Posted January 13, 2011 Author Share Posted January 13, 2011 (edited) ok I've got it. I didn't try it, because I thought the Orient Triball to Global command could not change the part so my mind was stuck before this step! I created a block with a hole in one corner, so there are no planes of symetry. I then mirrored this part. So the mirroring process has changed the part. ok fine no great surprise. (no amount of rotating or translating will the new part look like the original) But upon choosing the Orient to Triball command while Eliminating the Mirroring has CHANGED the part back to its orginal. So I am surprised that to find what is essentially a rotate command has changed the part. Thanks (edited for spelin) Edited January 13, 2011 by David Thomas Quote Link to comment Share on other sites More sharing options...
IronKevin Posted January 13, 2011 Share Posted January 13, 2011 That's why it's labeled "Eliminate Mirroring", it's eliminates the mirroring. Quote Link to comment Share on other sites More sharing options...
Cary OConnor Posted January 14, 2011 Share Posted January 14, 2011 Basically in terms of coding the part has a transformation on it. Users can't see this in the positioning but it is there on the object. The Triball orient sees this can can either eliminate it or preserve it. That is why the option exists. Cary Quote Link to comment Share on other sites More sharing options...
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