The wheel and the Fit button used to jump to the new view. Now the
view takes a short way there, 200 ms by default, everywhere the editor
zooms. The zoom steps stay the same, only the change is shown.
- viewTween: tweenView is the way between two views as a pure
function. The scale moves by equal ratios, and the world point that
sits at the same place on screen in both views stays there. After a
wheel step that is the point under the pointer.
- ViewTween drives it on the ticker. A surface hands it reading,
writing and drawing its own view and wraps its wheel and Fit code in
change(). A step during a transition starts from where that one was
heading, so quick steps add up to exactly as many steps.
- Anything else that moves the view ends the transition. A pan jumps
to the target first, and saving a view saves the target.
- Wired into FreeViewport (Scene, Container, animation preview),
SheetCanvas (Texture, Curve, Pixel art, Vector art), GraphCanvas,
panAndZoom (Tile board, plugin node board) and the timeline.
- Menu > General settings... sets the time in ms, 0 jumps at once. It
is kept in this browser like the panel sizes, not in the project,
and it is not an undo step.
- A document that opens still comes up framed at once. The animation
preview frames a new subject itself instead of calling fit().
- The pixel art readout names the step the view is heading for.
Measured in the scene view at 200 ms on melektaus-atx, where every
frame of the transition is a full redraw:
- 500 sprites: redraw 6.7 ms, 16 frames, mean 18 ms
- 1000 sprites: redraw 13.0 ms, 9 frames, mean 27 ms
- 2000 sprites: redraw 32.2 ms, 5 frames, mean 58 ms
Tests:
- The harness sets 0 ms on every load, so the existing modules read
the step and not the way.
- e2e 46i samples one wheel step at 1000 ms a frame later: zoom 1.033
between 1 and 2, the point under the pointer kept at (134, -40). It
lands on the view a 0 ms jump reaches.
- e2e 46 and 49 expect the new menu entry.
- Gate (atx): 234 files, 3563 tests, CHECK EXIT 0 (+15)
- e2e 46,49 (atx): ALL PASSED, 43 checks (+3, sum 1735)
- Three counter-checks fail view-tween.test.ts as expected. e2e 46i
fails when the scene view does not carry its centre along.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
