If the Grid auto-spacing checkbox is checked, grid spacing is automatically adapted based on the view dimensions. Stored in the ビューGrid Auto property of the sketch.
The Snap to grid checkbox toggles grid snap in all sketches. If checked, the cursor will snap to grid lines and grid intersections. Snapping occurs if the distance of the cursor to a grid line is 20% of the grid spacing or less. Snapping also works if the grid is invisible. Note that grid snap is just a drawing aid, it does not produce additional constraints. introduced in 1.1
Spacing specifies the distance between two subsequent grid lines. Used as a base value if Grid auto-pacing is enabled. Stored in the ビューGrid Size property of the sketch.