Pen tool: snap curve control/tangent points to grid
I use the handles snapping to grid functionality extensively when creating icons and other detail-intensive shapes. This is critical to my workflow.
Note from Adobe: curve anchor points (the points the curve pass through) should snap to the grid already. This request is about the curve control points (the two handles on either side of each anchor point, with the tangent line connecting them) snapping to the grid; this does not cause any visible part of the path to align to the grid better, it just helps keep the control points organized and makes it easier to match curves identically in different parts of the shape.
Thanks for the clarification, Sascha. I've tweaked the description above to help make that more clear.
As a workaround, note that you can hold down Shift to snap the angle of the control points' tangent line to 15-degree increments. This might help a bit, at least, with keeping your control points consistently placed.
I'm referring to the handles. Each anchor point has two handles that contol the character of the anchor point. Those handles should also snap to the grip (optionally of course). Am talking about XD! (Not Illustrator)
Adobe regrettably eliminated that feature in Illustrator CC 2014. I use the handles snapping to grid functionality extensively when creating icons and other detail-intensive shapes. This is critical to my workflow.
See this discussion: https://forums.adobe.com/thread/1506427