Affinity Photo creating a grid with equal subdivisions.

[davshev]

I'm trying to create a grid overlay of for an image.  I want to be able to subdivide the grid into perfectly equal parts so that all of the subdivisions are the exact same aspect ratio as the image.   The default grid setting seems to just superimpose a grid of squares regardless of the size/shape of my image.  In Photoshop you can alter the grid size in terms of a percentage.

Edited April 10, 2023 by davshev

[Old Bruce]

17 minutes ago, davshev said:

I'm trying to create a grid overlay of for an image.  I want to be able to subdivide the grid into perfectly equal parts so that all of the subdivisions are the exact same aspect ratio as the image.   The default grid setting seems to just superimpose a grid of squares regardless of the size/shape of my image.  

Do it like this. Make your document have Margins with 0 (zero) pixels. And use the Guides dialog to set up your divisions using outline and 0 (zero) width gutters.

[davshev]

Ahh....so, it's done with the guides manager, not the grid manager.  Can the guides be stored as a preset?

[iconoclast]

You could also try "View" > "Grid and Axis". Choose "Advanced", "Grid Type": "Two axis custom". Then "Fixed aspect ratio". Now you can change the "Spacing" of the two axes separately.