finitystone Posted November 23, 2021 Share Posted November 23, 2021 Hi, I try to substract a thin rectangle (blue) from an ellipse (red). The desired result should be the ellipse with a thin cut out (where rectangle lies over the ellipse), but what it gives me is a crashed form. I read through this forum and tried many advices (creating curves before substraction, changing fill mode after substraction) but nothing seems to work for me. Do you have any suggestions *hope*? I attached a document below. substract_rectangle.afdesign Quote Link to comment Share on other sites More sharing options...
Komatös Posted November 23, 2021 Share Posted November 23, 2021 Hello and welcome to the forums, @finitystone I hope my solution is what you expect. I have saved the history for better understanding. substract_rectangle _ with history .afdesign finitystone 1 Quote AMD Ryzen 7 5700X | INTEL Arc A770 LE 16 GB | 32 GB DDR4 3200MHz | Windows 11 Pro 23H2 (22631.3085) AMD A10-9600P | dGPU R7 M340 (2 GB) | 8 GB DDR4 2133 MHz | Windows 10 Home 22H2 (1945.3803) Affinity Suite V 2.3.1 & Beta 2.(latest) Better translations with: https://www.deepl.com/translator Need a system wide color picker? Try Microsoft's (New) Power Toys Need a robust PDF Solution? Have a look at Stirling PDF There's nothing you get used to faster than working slowly! Link to comment Share on other sites More sharing options...
finitystone Posted November 23, 2021 Author Share Posted November 23, 2021 That's magic! Many thanks to you, it works as exptected. To be honest never mind that way to go. Quote Link to comment Share on other sites More sharing options...
Old Bruce Posted November 23, 2021 Share Posted November 23, 2021 I took the blue rectangle and converted it to a curve. I then added a couple of points on the rectangle just outside the circle and moved the farthest away from the circle making a large odd looking shape. It all subtracted fine. Subtract 02.afdesign finitystone 1 Quote Mac Pro (Late 2013) Mac OS 12.7.2 Affinity Designer 2.3.1 | Affinity Photo 2.3.1 | Affinity Publisher 2.3.1 | Beta versions as they appear. I have never mastered color management, period, so I cannot help with that. Link to comment Share on other sites More sharing options...
BofG Posted November 23, 2021 Share Posted November 23, 2021 Dare we dream that one day Affinity will be able to handle boolean operations correctly? CLC 1 Quote Link to comment Share on other sites More sharing options...
finitystone Posted November 23, 2021 Author Share Posted November 23, 2021 That's also working for me @Old Bruce! I'm happy actually with both solutions, but it makes me curious why that happens. Try to figure out the orientation/fill behavior. Quote Link to comment Share on other sites More sharing options...
Old Bruce Posted November 23, 2021 Share Posted November 23, 2021 2 minutes ago, finitystone said: I'm happy actually with both solutions, but it makes me curious why that happens. You and I and so many other people. BofG and CLC 1 1 Quote Mac Pro (Late 2013) Mac OS 12.7.2 Affinity Designer 2.3.1 | Affinity Photo 2.3.1 | Affinity Publisher 2.3.1 | Beta versions as they appear. I have never mastered color management, period, so I cannot help with that. Link to comment Share on other sites More sharing options...
BofG Posted November 23, 2021 Share Posted November 23, 2021 If you scale both objects up to a massive size (so the thin rectangle is a few hundred px tall), does it then work? Not at a computer to check. Quote Link to comment Share on other sites More sharing options...
Old Bruce Posted November 23, 2021 Share Posted November 23, 2021 1 minute ago, BofG said: If you scale both objects up to a massive size (so the thin rectangle is a few hundred px tall), does it then work? Not at a computer to check. I tried that and no it didn't. I didn't scale it to more than 500% so I can't say for certain. BofG 1 Quote Mac Pro (Late 2013) Mac OS 12.7.2 Affinity Designer 2.3.1 | Affinity Photo 2.3.1 | Affinity Publisher 2.3.1 | Beta versions as they appear. I have never mastered color management, period, so I cannot help with that. Link to comment Share on other sites More sharing options...
JimmyJack Posted November 23, 2021 Share Posted November 23, 2021 Hi @finitystone Step 1: Alt/option Boolean Subtract (to create a compound subtraction) Step 2: CMD Return (convert to curves) Step 3: Don't ask why 🙃 Old Bruce, Ron P. and Andy05 1 2 Quote Link to comment Share on other sites More sharing options...
R C-R Posted November 23, 2021 Share Posted November 23, 2021 2 hours ago, Old Bruce said: I tried that and no it didn't. I didn't scale it to more than 500% so I can't say for certain. I scaled up to 20 times larger & to 30 times larger -- it still did not work. Quote All 3 1.10.8, & all 3 V23.0 Mac apps; 2020 iMac 27"; 3.8GHz i7, Radeon Pro 5700, 32GB RAM; macOS 10.15.7 Affinity Photo 1.10.8; Affinity Designer 1.108; & all 3 V2 apps for iPad; 6th Generation iPad 32 GB; Apple Pencil; iPadOS 15.7 Link to comment Share on other sites More sharing options...
BofG Posted November 24, 2021 Share Posted November 24, 2021 Yep, not a sized based issue. The booleans work off pixel intersections, sometimes if one path (or part of) is too few pixels it all goes haywire. Not the case here though, this is just fundamentally broken Quote Link to comment Share on other sites More sharing options...
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