Settings and system variables

Most of Musa CAD’s settings have sensible starting values, so you can draw without touching any of them. This chapter shows where to find them when you want something different.

The main settings windows

Window	Open with	What it holds
Options	OP	Whether Musa CAD checks for updates, and the performance overlay.
Drafting Settings	DS or OS	Snap and grid, polar tracking, object snaps, and Dynamic Input.
Drawing Units	UN	How lengths and angles are shown, their precision, and the drawing’s unit.
Dimension Style Manager	D	How dimensions look.
Text Style	ST	Fonts and text sizes.

System variables

A system variable is a single named setting, such as PICKBOX for the size of the pick box or FILLETRAD for the fillet radius. Type its name and press Enter. Musa CAD shows the current value in angle brackets; type a new one, or press Enter to keep it:

Command line

Command: PICKBOX
Enter new value for PICKBOX <10>: 15

SETVAR does the same and can list them. The system variable reference has a page for every variable Musa CAD has, with its starting value.

What travels with a drawing

Some settings belong to the drawing and are saved in the .musa file, so anyone who opens it sees the same thing. These include the drawing units, the limits, the linetype scale, the layers, and the text, dimension, table and multileader styles.

Other settings belong to you and stay the same in every drawing you open, such as your keyboard shortcuts, your command aliases, the Dynamic Input settings and the update check.

Where your own settings are kept

System	Settings	Command aliases
Linux (AppImage or built from source)	~/.config/Musa-CAD/musa_cad.conf	~/.config/Musa-CAD/musa_cad/musacaduser.pgp
Linux (Flatpak)	~/.var/app/org.musacad.MusaCAD/config/Musa-CAD/musa_cad.conf	~/.var/app/org.musacad.MusaCAD/config/Musa-CAD/musa_cad/musacaduser.pgp
Windows	the registry, under HKEY_CURRENT_USER\Software\Musa-CAD\musa_cad	%LOCALAPPDATA%\Musa-CAD\musa_cad\musacaduser.pgp

To start again with every setting at its starting value, close Musa CAD and delete or rename the settings file.

Command	Type	What it does
OPTIONS	OP	Change application settings: update checks and the performance overlay.
OSNAP	OS, DS, SE, RM, DDOSNAP, DDRMODES, DSETTINGS	Open the Drafting Settings: snap and grid, polar tracking, object snaps, dynamic input.
UNITS	UN	Set the display format and precision of lengths and angles (the Drawing Units dialog).
SETVAR	SET	Change a system variable by its name.
LIMITS	LIMITS	The drawing's limits, and whether points outside them are refused.

Next

• Make Musa CAD fit your hands in Customising.