casterle Posted April 14, 2022 Share Posted April 14, 2022 As the title suggests, I'd like to automatically create strokes (or shapes) on a vector layer based on a color or range of colors visible on layers below. Specifically, I've got an image layer displaying a map with lakes and rivers. I'd like to use the blue colors to create the strokes. I've also got all 3 apps, so if I can use Photo or Pub to accomplish this I've got them as well. Quote Windows 11 Pro, XP-Pen Deco 03, AP, AD & APub Link to comment Share on other sites More sharing options...
walt.farrell Posted April 14, 2022 Share Posted April 14, 2022 Can't you just sample the color you want, and assign the sampled color to the strokes? Quote -- Walt Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases PC: Desktop: Windows 11 Pro, version 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 Laptop: Windows 11 Pro, version 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU. iPad: iPad Pro M1, 12.9": iPadOS 17.3, Apple Pencil 2, Magic Keyboard Mac: 2023 M2 MacBook Air 15", 16GB memory, macOS Sonoma 14.3 Link to comment Share on other sites More sharing options...
thomaso Posted April 15, 2022 Share Posted April 15, 2022 Assuming your image layer is a raster image, there is no way in Affinity to automatically create vector objects from this image content because Affinity does not convert pixels to vectors. If you want to draw vector objects manually over the image without having to select colours, the blend mode "Overlay" can result in colours that are corresponding to or similar to the colours of the image underneath. Quote macOS 10.14.6 | MacBookPro Retina 15" | Eizo 27" | Affinity V1 only Link to comment Share on other sites More sharing options...
casterle Posted April 15, 2022 Author Share Posted April 15, 2022 20 hours ago, walt.farrell said: Can't you just sample the color you want, and assign the sampled color to the strokes? I had hoped to create the strokes based on the underlying color or range. Quote Windows 11 Pro, XP-Pen Deco 03, AP, AD & APub Link to comment Share on other sites More sharing options...
casterle Posted April 15, 2022 Author Share Posted April 15, 2022 19 hours ago, thomaso said: Assuming your image layer is a raster image, there is no way in Affinity to automatically create vector objects from this image content because Affinity does not convert pixels to vectors. If you want to draw vector objects manually over the image without having to select colours, the blend mode "Overlay" can result in colours that are corresponding to or similar to the colours of the image underneath. I was afraid that was the case. I ended up using a free online converter (https://www.pngtosvg.com/) to convert the image to SVG, then loaded the SVG into AD and edited away the bits I didn't want. BTW, I tried several online converters - the one I mentioned is the only one that did the job adequately. Quote Windows 11 Pro, XP-Pen Deco 03, AP, AD & APub Link to comment Share on other sites More sharing options...
BillB1 Posted April 22, 2022 Share Posted April 22, 2022 Considering the way the Affinity suite straddles pixel / vector imaging, that's a bit of an omission. Hopefully it will be added in a future update. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.