[Subtract does not work as expected]

12 minutes ago, Old Bruce said:

I think the actual problem is that you are subtracting a curve from a curves layer. If you go to Layers > Geometry > Separate Curves and then subtract the triangle from the larger disk and then subtract the smaller disk from the larger (with the triangle cut out) disk you'll see what you are striving for.

That sounds like a lot of work for something that should be a trivial operation. Seeing that it actually gives the correct result when rotating the circle, or when increasing the size I would rather think I found a bug. I would expect these simple path operations to work just like they do in other tools like Illustrator. Besides, if the tool couldn't handle compound curves I would expect the tool not to work at all, instead of giving a strange and unexpected result, right?

[Subtract does not work as expected]

30 minutes ago, Alfred said:

In this particular case there’s no need to perform a subtraction at all. The Donut Tool isn't limited to creating whole donuts: you can specify start and end angles (e.g. 135° and 45°) if you want a donut with a bite taken out of it.

Thank you for your suggestion. Unfortunately the donut tool only allows defining a hole radius as a percentage of the donut. I wanted to have a border of exactly 2 pixels wide.

[Subtract does not work as expected]

I was trying to subtract two simple shapes from each other in Affinity Designer (version 1.9.3 on macOS). The result is not what I expected. See the screenshots below. I also attached the original file. Why does subtract not work as expected in this example? When increasing the size of the document and shapes, subtract actually gives the expected result.

PS I already found a workaround in another topic: option-click subtract, then convert the compound shape to curves.

 

 

 

 

subtract.afdesign