Subject: Using entity snaps

Entity snaps enable you to quickly select exact geometric points on existing entities without having to know the exact coordinates of those points. With entity snaps, you can select the endpoint of a line or arc, the center point of a circle, the intersection of any two entities, or any other geometrically significant position. You can also use entity snaps to draw entities that are tangent or perpendicular to an existing entity.             

You can use entity snaps any time the program prompts you to specify a point—for example, if you are drawing a line or other entity. You can work with entity snaps in one of two ways:

   Enable a running entity snap that remains in effect until you turn it off by choosing an entity snap when no other command is active.    

   Enable a one-time entity snap for a single selection by choosing an entity snap when another command is active. You can also use a one-time entity snap to over­ride a running entity snap.    

If you type the name of entity snaps, you don’t need to type the whole name.
Type only the first three letters of the snap name.    

When using entity snaps, the program recognizes only visible entities or visible por­tions of entities. You cannot snap to entities on layers that have been turned off or to the blank portions of dashed lines.

When you specify one or more entity snaps, an entity snap target box is added to the crosshairs. In addition, an icon appears adjacent to the crosshairs indicating the active entity snap. When you select an entity, the program snaps to the snap point closest to the center of the target box.            

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Setting entity snaps

Nearest Snap tool

Endpoint Snap tool

Midpoint Snap tool

Center Snap tool

Perpendicular Snap tool

Tangent Snap tool

Quadrant Snap tool

Insertion Point Snap tool

Node Snap tool

Parallel Snap tool

Apparent Intersection Snap tool

Quick Snap command

Clear Entity Snaps tool

From Point tool

Temporary Tracking Point tool

Mid Between 2 Points tool

Setting snap spacing

Using fly-over snapping

Using entity snap tracking

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