Reduce ctrl+scrollwheel zoom speed by 4x (fix #224)

edemaine · Aug 9, 2023 · 5dddff2 · 5dddff2
1 parent e64646a
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -10,6 +10,7 @@ instead of version numbers.
 ## 2023-08-09
 
 * Fix PDF export of LaTeX text and arrows
+* Reduce zoom speed via <kbd>Ctrl</kbd> + mouse wheel by 4x
 
 ## 2023-05-01
 

diff --git a/client/DrawApp.coffee b/client/DrawApp.coffee
@@ -225,7 +225,7 @@ export DrawAppRoom = ->
             deltaY *= currentBoard().clientBBox.height
         if e.ctrlKey
           ## Ensure zoom-out motion is inverse of equivalent zoom-in
-          factor = 1 + 0.01 * Math.abs deltaY
+          factor = 1 + 0.0025 * Math.abs deltaY
           factor = 1/factor if deltaY > 0
           currentBoard().setScaleFixingPoint transform.scale * factor,
             x: e.offsetX