Apparent Intersection Snap

Snaps to points where two lines would meet. An auxiliary line is displayed from both lines, extending to this point. Show Magnetic Point must be turned on.

1. Start with lines whose extensions will meet (non-parallel). When you pass the cursor over each line, the line's endpoint is marked.
   
2. When the cursor passes over any apparent intersection point, auxiliary lines will be displayed from the actual lines, and their intersection point is marked.
   
   

Note: If Always show auxiliary lines is checked in the Drawing Aids window, the auxiliary lines will be displayed, even when you move the cursor away from them.