System Variables (R3SYS)¶

Command: R3SYS

R3Survey stores settings as system variables, similar to AutoCAD's own system variable model. Type R3SYS at the command line to list all variables and their current values.

How to view and change variables¶

Enter R3SYS at the command line. A list of all settings and their current values is displayed.

R3SYS system variables form

To change a variable, enter its name at the command line and follow the prompts.

Variable reference¶

Variable	Commands affected	Description
`BLOCKLIBRARYFOLDER`	Various	Path to the folder where custom blocks are stored for use in drawing commands
`SELECTED_AREA_UNIT_1`	R3PROPERTIES	First area unit displayed in the R3Properties panel
`SELECTED_AREA_UNIT_2`	R3PROPERTIES	Second area unit displayed in the R3Properties panel
`SELECTED_AREA_UNIT_3`	R3PROPERTIES	Third area unit displayed in the R3Properties panel
`SELECTED_LENGTH_UNIT_1`	R3PROPERTIES	First length unit displayed in the R3Properties panel
`SELECTED_LENGTH_UNIT_2`	R3PROPERTIES	Second length unit displayed in the R3Properties panel
`SELECTED_LENGTH_UNIT_3`	R3PROPERTIES	Third length unit displayed in the R3Properties panel
`TEXT0LAY`	T0	Layer for text placed by the `T0` command
`TEXT1LAY`	T1	Layer for text placed by the `T1` command
`TEXT2LAY`	T2	Layer for text placed by the `T2` command
`TEXT3LAY`	T3	Layer for text placed by the `T3` command
`TEXT4LAY`	T4	Layer for text placed by the `T4` command
`USECURRENTTEXTLAYER`	T0–T4	When `true`, text commands use the current drawing layer instead of predefined layers. Toggle with `ToggleTextLayer`.

Notes¶

Default layer names for T0–T4 are TEXT0, TEXT1, TEXT2, TEXT3, TEXT4
The USECURRENTTEXTLAYER default is true
The SELECTED_LENGTH_UNIT and SELECTED_AREA_UNIT variables correspond to the units selected in the R3PROPERTIES panel settings (gear icon). Changing them there updates these variables automatically.