Model units properties manage the units settings for the current model space.
Layout units properties manage the layout units for the current layout space.
Controls the units used in the model.
Controls the units used in the layouts.
When you change from one units system to another, Rhino asks if you want to have the geometry automatically scaled to match the unit change.
Hatch patterns are automatically scaled when units change.
Tolerance in units used when creating new geometry that cannot be absolutely accurate. For example, trimming surfaces, doing offsets and Boolean operations usually create approximate geometry.
Sets the relative tolerance used in some commands. If, in those commands, the relative tolerance is smaller than the absolute tolerance setting, the relative tolerance is used instead.
Sets the angle tolerance in some commands use to create, modify, or evaluate geometry.
When creating or modifying geometry the angle between two objects will be less than or equal to the tolerance value.
Two objects will meet an evaluation criterion, such as tangency, when the angle between them is less than the tolerance value.
The unit name.
Enters a scale in units per meter.
Sets the distance display for the status bar and distance and length commands.
Sets the display to decimal (1.25).
Sets the display to fractional (1-1/4).
Sets the display to feet and inches (1'-3").
Sets the number of decimal places for the distance display.
Use any of the Rhino unit measurements including fractions. You can mix fractional and decimal input.
Use any of the Rhino angle unit measurements including fractions. You can mix input types.
The direction for 0 degrees is 3 o'clock. Positive angular measurement is counterclockwise.
The "°" symbol can be used, but it is easier to just type d.
45 (If no units are specified, then degrees are assumed.)
3.1415926535897932384626433832795r (pi radians)