Alignment

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DRVale
Registered Member
Posts: 2
Joined: Thu Jan 15, 2026 11:14 am

Alignment

Post by DRVale » Thu Jan 15, 2026 11:47 am

QCAD Pro 3.32.5 - Macbook Air M3 Tahoe 26.2

I am not sure if I am having a senior moment. Last night Mac updated to Tahoe 26.2, all working fine yesterday. Today when I draw say a vertical line top to bottom via the grid then the angle is not 0 but 270. Attached example screenshot illustrates. I have looked to see if a setting has changed but cannot find one. Somehow everything is inverted. if I select the Vertical tool line then the line is correctly drawn vertically but the PE gives it as 90 degrees not 0
Attachments
orientation.jpg
orientation.jpg (175.72 KiB) Viewed 4374 times

CVH
Premier Member
Posts: 5098
Joined: Wed Sep 27, 2017 4:17 pm

Re: Alignment

Post by CVH » Thu Jan 15, 2026 1:28 pm

Hi, and welcome to the QCAD forum.

We draw on a 2D plane with a Cartesian grid.
Angles are measured from zero in the direction of the positive X-axis, increasing in the CCW direction.
up is thus 90 degrees, left is 180 degrees.

When selected a red maker indicates a start.

Hence, a perfect vertical line pointing downwards is pointing in the 270 degrees direction.
The line angle is thus 270 unnamed angle units.

It has always been that way. :wink:
Some users would like zero = up and increasing in the CW direction but that is not implemented.

Regards,
CVH

DRVale
Registered Member
Posts: 2
Joined: Thu Jan 15, 2026 11:14 am

Re: Alignment

Post by DRVale » Thu Jan 15, 2026 2:07 pm

Senior moment I guess, but having done 50 odd drawings with curves and angles previously then my brain has not cottoned onto this! Yes North UP so to speak would be a distinct advantage, or at least the option for it would be more in tune with us pilot folks. Thanks for the simple solution though.

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