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"Add" tool like Illustrator to fix self-intersecting elements

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My case: a self-intersecting shape that shows empty holes in the intersections.

What I want: obtain a shape with no holes

image.png.c4198237601e64b0de9aab261fc69042.png

 

On Illustrator I just need to: use Winding (non-zero) > duplicate the shape or overlay another small shape on it > use the "Unite" command

The intersections disappear and the shape is uniform.

 

In Affinity Designer this is impossible. Following this operation in AD the result is to just revert to the above shape.

So, there is no real way to empty those holes and make a single non-self-intersecting shape.

Winding (non-zero) is just a display option that doesn't unify the shape.

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Affinity Store: Affinity Suite (ADe, APh, APu) 1.7.3.481.
Windows 10 Pro, Version 1909, Build 18363.476.
Dell Latitude E5570, i5-6440HQ 2.60 GHz, 8 GB, Intel HD Graphics 530, 1920 x 1080.
Dell OptiPlex 7060, i5-8500 3.00 GHz, 16 GB, Intel UHD Graphics 630, Dell P2417H 1920 x 1080.

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Blend mode is Normal? 


Affinity Store: Affinity Suite (ADe, APh, APu) 1.7.3.481.
Windows 10 Pro, Version 1909, Build 18363.476.
Dell Latitude E5570, i5-6440HQ 2.60 GHz, 8 GB, Intel HD Graphics 530, 1920 x 1080.
Dell OptiPlex 7060, i5-8500 3.00 GHz, 16 GB, Intel UHD Graphics 630, Dell P2417H 1920 x 1080.

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@>|< nope, that doesn't work since when I click on "Divide" the object just switch Fille Mode and I start to see the empty holes.

Anyway, since it's just a single object self-intersecting, there is nothing to separate.

This is why I'm asking for a new feature, not a solution. There is no solution but to cover the "holes" with patch shapes like in picture and then "Add" all those patches to the original one. But it's long and in Illustrator I can do it with 2 clicks.

patches.png.cedad83e165bb1b8f6e1a05e884fcf0e.png

Here the file so you can try and see.

The original design comes from freepik.com

Crown-freepik.afdesign

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Ah! Thank you, @>|<, for the help. It does work! I had missed a step in your process.

I still hope that the Affinity team will add a function to simplify this case but this is a solution I couldn't see by myself.

Thanks again :)

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