ellipse in Affinity Photo

[pioneer]

Good morning I am trying to cut this ellipse in half in AP but sadly for the life of me after looking and trying everywhere I seem unable to do this.  Is there a way of cutting this ellipse in half please? Cheers John

[firstdefence]

Use the Pie Tool, create the ellipse you want, and use the red handles to make the ellipse half an ellipse.

Forum tip: when posting large images, double click on the image to scale it, clicking on the image will show actual size but from the initial view a smaller image makes reading the post easier, my image above is scaled to 500px

[pioneer]

Firstdefence, thanks for the speedy reply and visual solution. Can now progress my project. Once again thank you. John

[GarryP]

Just in case anyone is interested, here are three other methods for getting half an ellipse (and there are more).
In my attached video:
1. Segment Tool.
2. Geometry functionality.
3. Shape Builder functionality (Designer only).

Note: You may need to set one or more of the snapping settings ON to get the various shapes to line-up nicely.

[R C-R]

If you want to divide the ellipse into 2 parts instead of cutting away part of it, you can do that too, by placing a rectangle over part of it & then using boolean divide to divide it into 3 shapes & deleting the one that does not contain either half ellipse.

This can be used to cut apart the ellipse at any angle or to cut it into 2 unequal half ellipses.

For completeness, if you also have Affinity Designer V2 as well as Affinity Photo, you can use the new Knife Tool in AD V2 to do this in one step, without adding any shapes or conversions to pies or whatever.

[v_kyr]

Such egg like elipse parts can also be easily created with the "Cresent & Segment Tools" (shapes) instead. - Just create one part of them and then afterwards "copy/paste & flip" a selected one in order to get the second part!

 

 

[R C-R]

31 minutes ago, v_kyr said:

Such egg like elipse parts can also be easily created with the "Cresent & Segment Tools" (shapes) instead.

FWIW, @GarryP already mentioned using the Segment Tool for this, but the subtract a rectangle method I mentioned above is I believe the quickest & most flexible way to do this, particularly if you want dissimilar sizes for the 2 parts or ovoid shapes that have a flat side at an angle to make them bilaterally non-symmetrical.

[v_kyr]

36 minutes ago, R C-R said:

but the subtract a rectangle method I mentioned above

Many ways lead to Rome!

[R C-R]

27 minutes ago, v_kyr said:

Many ways lead to Rome!

True, but some are much longer than others. So for example, consider trying to get this uneven split.afphoto result (history included) by using the Crescent or Segment tools.

[v_kyr]

2 hours ago, R C-R said:

So for example, consider trying to get this ...

No problem to get that out of initial segments etc. too.

 

[R C-R]

1 minute ago, v_kyr said:

No problem to get that out of initial segments etc. too.

But how many steps does it take, especially if you want a particular angle for the flat sides? That's easy to do precisely by setting the rotation of the rectangle to the angle desired.

[pioneer]

Wow, thank you everybody for the interest on my post. I will play around with all these.  Cheers John, and Happy new year to everybody

[v_kyr]

22 minutes ago, R C-R said:

That's easy to do precisely by setting the rotation of the rectangle to the angle desired.

Same for the segment part then by using an auxialiary angled rectangle to precisely adjust according to that as desired. - Steps do depend on your Node tool usage and geometry knowledge here.

[R C-R]

3 hours ago, v_kyr said:

Same for the segment part then by using an auxialiary angled rectangle to precisely adjust according to that as desired.

Sure, but that is a bit fiddly, requires no special geometric knowledge other than the angle you want, & takes more steps than just using a rectangle plus an ellipse.

[pioneer]

Thanks for everybody's help with this. I finally achieved my project.  Cheers John

[GarryP]

I know this thread is for Photo but I thought I’d just mention – just in case it interests anyone – that the ellipse in the above post can be created using only one shape in Designer using three Strokes and a Gradient Fill (rotated by 90 degrees) via the Appearance Panel, see attached screenshot.

[pioneer]

GarryP, thanks for this. One thing I cannot see how to do is how you get your strokes to show as Px. I can only seem to get pts even though my document is set up for Px. I am probably missing something obvious  Cheers John

[v_kyr]

26 minutes ago, pioneer said:

I can only seem to get pts even though my document is set up for Px.

What do the rulers show pts or px?

[pioneer]

V_kyr. Thanks for that have changed settings to reflect that.  Cheers John