Setting Grid and Snap Options

The Snap functions enable you to determine how certain features—line, pad, filled surface, arc, text—snap to positions on the grid or to other features, and enables you to decide whether the grid is displayed as well as in what form.

The Control Snapping tool opens the Snap dialog box . Selecting a mode in the Snap dialog box causes the tool icon in the toolbar of the Result Viewer to change to the specific tool in use. The Grid Mode options determine whether to display the grid or not; and if displayed, in what form. There are hot keys for each of the snap options.

Snap Mode options can be deactivated by clicking Off.

Tool	Use
	Grid — Snaps to grid intersection.
	Center — Snaps to center of pad (end of arc or line).
	Skeleton — Snaps to skeleton hairline in center of line or arc, or to center of pad.
	Edge — Snaps to closest edge of feature (also lines and arcs).
	Intersect — Snaps to intersection of lines or arcs.
	Midpoint — Snaps to midpoint of lines (not arcs) or center of pads and filled surfaces.
	Profile — Snaps to the closest point on the defined profile.
	Between — Snaps to the center of an orthogonal (horizontal or vertical) line between two closest pads.

Procedure

Clear the Off option under Grid, or press Ctrl-G.
Select one of the grid type options.
- Marks — Grid is displayed in crosses at grid intersections
- Net — Displays horizontal and vertical lines
- Dots — Displays dots at grid intersections
In X size and Y size set the distances between grid intersections along the X/Y axes.