setvar (AutoLISP)

Sets an AutoCAD system variable to a specified value

Supported Platforms: Windows and Mac OS

Signature

(setvar varname value)

varname

Type: String

System variable name.

You can find a list of the current AutoCAD system variables in the product Help.

value

Type: Integer, Real, String, List, T, or nil

An atom or expression whose evaluated result is to be assigned to varname. For system variables with integer values, the supplied value must be between -32,768 and +32,767.

Return Values

Type: Integer, Real, String, List, T, or nil

If successful, setvar returns value.

Remarks

Some AutoCAD commands obtain the values of system variables before issuing any prompts. If you use setvar to set a new value while a command is in progress, the new value might not take effect until the next AutoCAD command.

When using the setvar function to change the AutoCAD ANGBASE system variable, the value argument is interpreted as radians. This differs from the AutoCAD SETVAR command, which interprets this argument as degrees. When using the setvar function to change the AutoCAD system variable SNAPANG, the value argument is interpreted as radians relative to the AutoCAD default direction for angle 0, which is east or 3 o'clock. This also differs from the SETVAR command, which interprets this argument as degrees relative to the ANGBASE setting.

Note: The UNDO command does not undo changes made to the AutoCAD CVPORT system variable by the setvar function.

Examples

Set the AutoCAD fillet radius to 0.5 units:

(setvar "FILLETRAD" 0.50)
0.5