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Old 13th July 2020, 05:50 AM   #4
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Join Date: Jun 2003
Posts: 4,450
Default Re: Co ordinate systems

AC3D's coordinate system is the same as X-Plane i.e. Y is up.

Your diagram shows a coordinate system where Z is up i.e. like Blender and some other 3D packages - mostly CAD.

It could be that Planemaker is transforming the coordinates to another coordinate system on saving?

in AC3D, use menu Views->Configure-views to choose the individual view angles but note that you can't change the coordinate system used e.g. from right-handed to left.
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