Adjusting Snap and Grid

Commands

DDRMODES	Sets drawing aids
DDUNITS	Controls coordinate and angle display formats and determines precision
GRID	Displays a dot grid in the current viewport
LIMITS	Sets and controls the drawing boundaries and grid display
SNAP	Restricts cursor movement to regular intervals
UNITS	Selects coordinate and angle display formats and precision

System Variables

ANGBASE	Stores the base angle 0 with respect to the current UCS
ANGDIR	Sets the positive angle direction from angle 0 with respect to the current UCS
AUNITS	Stores Angular Units mode
AUPREC	Sets the number of decimal places for angular units displayed on the status line or when listing an object
GRIDUNIT	Specifies the grid spacing (X and Y) for the current viewport
LIMCHECK	Controls object creation outside the drawing limits
LIMMAX	Stores upper-right drawing limits for the current space expressed as a World coordinate
LIMMIN	Stores lower-left drawing limits for the current space expressed as a World coordinate
SNAPANG	Sets the snap and grid rotation angle for the current viewport
SNAPBASE	Sets the snap and grid origin point for the current viewport relative to the current UCS
SNAPUNIT	Sets snap spacing for the current viewport