extendSurface is undoable, queryable, and editable.
      This command extends a surface or creates a new surface as an extension.
In query mode, return type is based on queried flag.
      
      
      
    
		
		  | Long name (short name) | Argument types | Properties | 
		
	
	  | -extensionType(-et) | int |     | 
	
	  | 
	      
		|  | The type of extension (0 - tangent, 2 - extrapolate) Default: 0
 |  | 
	
	  | -extendMethod(-em) | int |     | 
	
	  | 
	      
		|  | The extend method (0 - distance) Default: 0
 |  | 
	
	  | -extendSide(-es) | int |     | 
	
	  | 
	      
		|  | Which end of the surface to extend ( 0 - end, 1 - start, 2 - both ) Default: 1
 |  | 
	
	  | -extendDirection(-ed) | int |     | 
	
	  | 
	      
		|  | Which parametric direction of the surface to extend ( 0 - U, 1 - V, 2 - both ) Default: 0
 |  | 
	
	  | -join(-jn) | boolean |     | 
	
	  | 
	      
		|  | Join extension to original Default: true
 |  | 
	
	  | -distance(-d) | linear |     | 
	
	  | 
	      
		|  | The distance to extend (for by distance only) Default: 1
 |  | 
| Advanced flags | 
	
	  | -caching(-cch) | boolean |     | 
	
	  | 
	      
		|  | Modifies the node caching mode. See the node documentation for more information. Note: For advanced users only.
 |  | 
	
	  | -nodeState(-nds) | int |     | 
	
	  | 
	      
		|  | Modifies the node state. See the node documentation for more information. Note: For advanced users only.
 |  | 
| Common flags | 
	
	  | -name(-n) | string |   | 
	
	  | 
	      
		|  | Sets the name of the newly-created node. If it contains
namespace path, the new node will be created under the
specified namespace; if the namespace does not exist, it
will be created. |  | 
	
	  | -constructionHistory(-ch) | boolean |   | 
	
	  | 
	      
		|  | Turn the construction history on or off |  | 
	
	  | -object(-o) | boolean |   | 
	
	  | 
	      
		|  | Create the result, or just the dependency node |  | 
	
	  | -replaceOriginal(-rpo) | boolean |   | 
	
	  | 
	      
		|  | Create "in place" (i.e., replace) |  |