@Anonymous wrote:
...the horizontal and vertical relations was interchange ...
No, you are working in 3D world now.
Horizontal is related to the XYZ Cartesian coordinate system.
If you are on an XY sketch plane then X is Horizontal and Y is vertical (no matter how you rotate the view).
If you are on any other sketch plane (XZ or YZ ) then Z is the vertical and X or Y is the horizontal.
By following this convention - the sketch constraints are always consistent no matter how you rotate the view.
If you have the sketch Axis displayed - the thick axis is Horizontal and the thin axis is Vertical. (no matter how you rotate the view)
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