tester1313 Posted November 18, 2021 Posted November 18, 2021 I have uploaded the file with the two shapes (A=red shape , B=black shape). I also have updated affinity for latest version (1.10.4.1198) on windows 10. The result I want to achieve is the B - A . When I perform the substract, or even the Xor, I do not get the correct result (I get B). If I perform an intersect the, I get as expected the result (A). Is there a way to get the expected result? Thanks for your help. Regards Quote
tester1313 Posted November 18, 2021 Author Posted November 18, 2021 the file I could not upload before substract-bug.afdesign Quote
GarryP Posted November 18, 2021 Posted November 18, 2021 Change the Fill Mode to Alternate once the shape has been subtracted – menu “Layer → Fill Mode → Alternate (Even-Odd)”. Or, reverse the direction of either curve before subtracting. I have no idea why there should be a difference but this, at least, gets you what you want. Note: I don’t know if this is a bug, as such, and it may simply be the expected behaviour. Quote
tester1313 Posted November 18, 2021 Author Posted November 18, 2021 Hello. Thanks for the workaround. It worked!!! But I was not expecting it would as used shapes are oval ones, (which means not polycurve with intersecting lines .) So there probably something to correct anyway (if I replaced any oval by rectangle shape, it is ok). Best regards and many thanks again 🙂 Quote
GarryP Posted November 18, 2021 Posted November 18, 2021 Subtracting an ellipse from another ellipse seems to work okay for me but I haven’t tried every combination. Same goes when I have converted each ellipse to curves. There may be something ‘odd’ with your particular curves but I’m not a curve/node guru so I’m not best suited to explore that. Anyway, glad you can continue on your way. Quote
Old Bruce Posted November 18, 2021 Posted November 18, 2021 Try looking at the design at 100% before doing this sort of thing. It is not even 6 by 7 pixels in size. What real world difference is it going to make? Quote Mac Pro (Late 2013) Mac OS 12.7.6 Affinity Designer 2.5.7 | Affinity Photo 2.5.7 | Affinity Publisher 2.5.7 | Beta versions as they appear. I have never mastered color management, period, so I cannot help with that.
GarryP Posted November 19, 2021 Posted November 19, 2021 Maybe it’s an eye for a tiny pixel creature? Good catch though Old Bruce, I simply didn’t notice it. Quote
tester1313 Posted November 19, 2021 Author Posted November 19, 2021 This is a part of a 16x16 for font icon that I have extracted to located precisely the problem (it is the head of a user, so you were not that far! 🙂 ).So the case of a font design, it is important to have a very precise shape like you have usually on any alphabet: It is a 16x16 design Note: If you rescale to 1000x1000 size, you will have the same effect. I tried it. So this is not a question of image size. Anyway, now thanks to you, I can make it work, but this is weired. Quote
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