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Offset an Object

May 20, 2011

       You can use the offset feature to copy selected objects and align them offset to the original objects at a specified distance. You can make offset objects using arcs, circles, ellipses, elliptical arcs, lines, two dimensional polylines, rays, and infinite lines.

     Making offset copies of curved objects creates larger or smaller curves, depending on which side of the original object you place the copy. For example, placing a offset l copy of a circle outside the circle creates a larger concentric circle; positioning the copy inside the circle creates a smaller concentric circle.

     You can perform TRIM or EXTEND command while the OFFSET command is active. The result is as follows:

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      If the objects to offset are 2D polyline or spline, the system trims them automatically when the specified distance is larger than can otherwise be accommodated. Displaying as follows:

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To make a offset copy by specifying the distance

  1.   Choose Modify > offset.

  2.   Specify the distance by selecting two points or by entering a distance.

  3.   Select the object to copy.

  4.   Specify on which side of the object to place the parallel copy.

  5.   Select another object to copy, or press Enter to complete the command.

Modify toolbar\

Command line OFFSET

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To make a parallel copy, specify the distance between copies by entering a distance or selecting two points (A and B), select the object to copy (C), and specify on which side to place the copy (D) Result

To make a offset copy passing through a point

  1.   Choose Modify > offset.

  2.   On the command line, type through (Through Point).

  3.   Select the object to copy.

  4.   Specify the point for the object to pass through.

  5.   Repeat steps 3 and 4, or press Enter to complete the command.

Modify toolbar \

Command line OFFSET

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To make a parallel copy passing through a point, select the object to copy (A) and then specify the through point (B)

Commands Reference

OFFSET: Creates a copy of selected object while offsetting it to a specified position or with specified displacement, and keeps the copy of offset object parallel to the source object.

System Variables Reference

OFFSETDIST: Sets the default offset distance

OFFSETGAPTYPE: Controls how potential gaps between segments are treated when polylines are offset


 

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