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Tangent
Snaps to the tangent of an arc, circle, ellipse, elliptical arc, or spline. Deferred
Tangent snap mode is automatically turned on when the object you are
drawing requires that you complete more than one tangent snap. You can use
Deferred Tangent to draw a line or xline that is tangent to arcs, polyline arcs,
or circles. When the aperture box passes over a Deferred Tangent snap point,
a marker and an AutoSnap tooltip are displayed.
NOTE When you use the From option in conjunction with the Tangent snap mode
to draw objects other than lines from arcs or circles, the first point drawn is tangent
to the arc or circle in relation to the last point selected in the drawing area.
Nearest
Snaps to the nearest point on an arc, circle, ellipse, elliptical arc, line, multiline,
point, polyline, ray, spline, or xline.
Apparent Intersection
Snaps to the visual intersection of two objects that are not in the same plane
but may appear to intersect in the current view.
Extended Apparent Intersection is not available as a running object snap.
Apparent and Extended Apparent Intersection do not work with edges or
corners of 3D solids.
NOTE You might get varying results if you have both the Intersection and Apparent
Intersection running object snaps turned on at the same time.
Parallel
Constrains a line segment, polyline segment, ray or xline to be parallel to
another linear object. After you specify the first point of a linear object, specify
the parallel object snap. Unlike other object snap modes, you move the cursor
and hover over another linear object until the angle is acquired. Then, move
the cursor back toward the object that you are creating. When the path of the
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