View > Pixel Aspect Ratio and its Correction toggle only stored a value:
the canvas transform (ViewXform) had no notion of pixel aspect, so the
image was always drawn with square pixels.
ViewXform now carries the displayed pixel aspect ratio and stretches
document x by it before rotation and flip. Drawing, pointer-to-document
mapping, pan and zoom-about deltas, rulers, grid, Fit/Fill on Screen,
scrollbars, the Navigator's view box and paste-in-place visibility all
go through it. Correction is on by default, as in Photoshop. A corrected
view draws through the CPU canvas path, like a flipped one, since the
GPU shader assumes square pixels. The document's pixels are unchanged.
Co-authored-by: Fabio Lussi <198260595+itrycodinganditsbad@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
Turns the canvas camera around its centre without rewriting pixels.
Reset View zeros the angle; Match Rotation copies it across documents.
Trackpad rotate follows Preferences › Enhanced Controls › Rotate View with Trackpad.
