Coordinate System Orientation

Coordinate System Orientation

Corvin.Huber
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Message 1 of 5

Coordinate System Orientation

Corvin.Huber
Contributor
Contributor

Hello!

 

I would like to work in an "aviation coordinate system" where X is facing forward, Y is facing "right" and Z is facing DOWN. And a home cube that reflects those orientations. Have not been able to find any setting that allows for this. Any ideas? Thank you!

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Message 2 of 5

TheCADWhisperer
Consultant
Consultant

@Corvin.Huber 

Can you post a link to a reference for the aviation coordinate system?

This image would seem to indicate Y pointing left give your other conditions.

TheCADWhisperer_0-1743080488472.png

 

TheCADWhisperer_1-1743080567390.png

TheCADWhisperer_2-1743080666689.png

 

TheCADWhisperer_3-1743080743102.png

 

I only pay attention to the axis and not the words, but I guess this comes down the label are you viewing to the right or are you naming the left side of the aircraft. It is the View Cube.

 

 

That is the problem of view orientation vs label of sides we are viewing.

A similar issue on Top and Front.

Which is the Top of the Calculator?

TheCADWhisperer_4-1743081198113.png

 

If we ignore labels like right, left, top, front - across any cartesian coordinate system the relation between X,Y,Z seems to be consistent.

 

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Message 3 of 5

davebYYPCU
Consultant
Consultant

Why?

That would do my head in.

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Message 4 of 5

Corvin.Huber
Contributor
Contributor

Thank you for your reply!

I just realised, that WITHOUT changing the orientation of the dimensions (standard sketching default), the viewing cube ALSO has questionable (=weird) name labels ... in other words, the "weirdness" does not change with the re-orientation of the axes.

You are , of course right, that these are "only" labels. The main thing is the correct orientation of the axes.

 

And yes, the label could be defined by the side you are looking at (which is, by the way, the same side you are looking FROM, let's call it Rule 1), let us say LEFT in an Example A, OR by the direction you have to direct your glance in order to see that side, which would then be RIGHT (Rule 2).

 

HOWEVER that would then need to be consistently applied. When you are looking at the front of something that would then be "BACK" with Rule 2, which is not what happens in the viewing cube nomenclature. So from my point of view, any "naming rule" that may have been devised was not consistently applied to the viewing cube.

 

CorvinHuber_0-1743587213345.png

If "RIGHT" were to be correct, then TOP would need to be BOTTOM and FRONT needed to be BACK.

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Message 5 of 5

TheCADWhisperer
Consultant
Consultant

@Corvin.Huber 

The labels themselves come from traditional ANSI/ASME 2D drafting standards for 3rd angle orthographic projection of views.

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