| Toolbar | Menu | 
|---|---|
| 
                         
                              | 
                    
                         Analyze Diameter  | 
                
The Diameter command reports the diameter of a curve at a specified point.
| Command-line options | |
|---|---|
| 
                         SelectCurve  | 
                    
                         Limit the selection to a specified curve. Press Enter to select any curve.  | 
                
| 
                         MarkDiameter  | 
                    
                         Places a point object at the evaluated point on a curve and creates a curvature circle through that point.  | 
                
| 
                         Units  | 
                    
                         Set the units for the length display. This option is only available if no objects are selected.  | 
                
| 
                         Type subcrv to select part of a curve as input.  | 
                |
| Toolbar | Menu | 
|---|---|
| 
                         
                              | 
                    
                         Analyze Radius  | 
                
The Radius command reports the radius of a curve at a specified point.
| Command-line options | |
|---|---|
| 
                         SelectCurve  | 
                    
                         Limit the selection to a specified curve. Press Enter to select any curve.  | 
                
| 
                         MarkRadius  | 
                    
                         Places a point object at the evaluated point on a curve and creates a curvature circle through that point.  | 
                
| 
                         Units  | 
                    
                         Set the units for the length display. This option is only available if no objects are selected.  | 
                
| 
                         Type subcrv to select part of a curve as input.  | 
                |
The Length, Radius, and Distance commands are nestable. This means that if Rhino is asking for a distance in a command, you can use these commands to measure another object or distance and the resulting value will be feed to the command as if you had typed the number.
Rhinoceros 6 © 2010-2020 Robert McNeel & Associates. 11-Nov-2020