Offset

       Ribbon: Home, Draw - Modify >  Offset Object

      Menu: Modify –  Offset

      Toolbar: Modify –

 Command line: O, OFFSET, VCOFFSETCMD

This command allows the creation of a new object similar to the selected one and is placed at the specified distance from it.

The Offset command is applicable to the following types of objects:

·         line segment;

·         arc;

·         circle;

·         ellipse and elliptical arc (as a result, splines of oval shapes are formed);

·         two-dimensional polyline;

·         line;

·         ray.

Similarly, arcs and circles have diameters smaller or larger than the source objects, according to which side the offset was made.

If the Multiple option is selected, all similar objects are created with the current offset.

The OFFSETGAPTYPE system variable determines the type of external angles when constructing a polyline offset:

·         OFFSETGAPTYPE = 0 (default value) – offset lines are extended to form a corner

·         OFFSETGAPTYPE = 1 – at the intersection of offset lines, a fillet is constructed with a radius equal to the offset distance

·         OFFSETGAPTYPE = 2 – at the intersection of offset lines, a chamfer is constructed, the perpendicular distance from each chamfer to the corresponding vertex on the source object is equal to the offset distance

Command options:

?	Opens the additional options to select objects.
Erase	Erases the source objects after creating similar ones. The option starts the following prompt in the command line: Erase source objects after offsetting? [Yes/No] <No>: Options: Yes - Deletes the source objects. No - Source objects are not deleted.
Layer	Defines the layer of the source objects. The option starts the following prompt in the command line: Enter layer option for offset objects [Source/Current] <Current>: Options: Source - Creates similar objects on the source layer. Current - Creates similar objects on the current layer.
Multiple	Switches on the mode for multiple creation of similar objects.
Undo	Consecutive undo of previous actions.
Exit	Finishes the command.

 

Selection of object	Offset	Selection of object	Offset	Result

Command prompts:

Specify offset distance or [Erase/Layer] <10.0000>:	Specify points to define the offset distance or enter an offset value.
Specify second point or [Through/Erase/Layer]:	Specify a second point to define the offset distance.
Select objects to offset or [?/Exit]:	Select an object.
Specify point on side to offset or [Exit/Multiple] <Exit>:	Specify a point.
Select objects to offset or [?/Exit]:	Select an object.
Specify point on side to offset or [Exit/Multiple] <Exit>:	Specify a point.
Select objects to offset or [?/Exit]:	Select the Exit option to finish the command.