pymel.core.modeling.insertKnotSurface¶

insertKnotSurface(*args, **kwargs)¶

The insertKnotSurface command inserts knots (aka isoparms) into a surface given a list of parameter values. The number of knots to add at each parameter value and whether the knots are added or complemented can be specified. The name of the surface is returned and if history is on, the name of the resulting dependency node is also returned. You must specify one, none or all number of knots with the -nkflag. eg. if you specify none, then the default (one) knot will be added at each specified parameter value. If you specify one -nkvalue then that number of knots will be added at each parameter value. Otherwise, you must specify the same number of -nkflags as -pflags, defining the number of knots to be added at each specified parameter value. You can insert up to degreeknots at a parameter value that isn’t already an isoparm. eg. for a degree 3 surface, you can insert up to 3 knots. Use this operation if you need more CVs in a local area of the surface. Use this operation if you want to create a corner in the surface. Note: A single insertKnotSurface command cannot insert in both directions at once; you must use two separate commands to do this.

Flags:

Long Name / Short Name		Argument Types	Properties
addKnots / add		bool
	Whether to add knots or complement. Complement means knots will be added to reach the specified number of knots. Default:true
caching / cch		bool
	Modifies the node caching mode. See the node documentation for more information. Note:For advanced users only.
constructionHistory / ch		bool
	Turn the construction history on or off.
direction / d		int
	Direction in which to insert knot: 0 - V direction, 1 - U direction Default:1
frozen / fzn		bool
insertBetween / ib		bool
	If set to true, and there is more than one parameter value specified, the knots will get inserted at equally spaced intervals between the given parameter values, rather than at the parameter values themselves. Default:false
name / n		unicode
	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.
nodeState / nds		int
	Modifies the node state. See the node documentation for more information. Note:For advanced users only. Flag can have multiple arguments, passed either as a tuple or a list.
numberOfKnots / nk		int
	How many knots to insert Default:1
object / o		bool
	Create the result, or just the dependency node.
parameter / p		float
	Parameter value(s) where knots are added Default:0.0 Common flags
replaceOriginal / rpo		bool
	Create in place(i.e., replace). Advanced flags

Derived from mel command maya.cmds.insertKnotSurface

Example:

import pymel.core as pm

pm.insertKnotSurface( 'surface1', ch=True, p=0.3, d=0 )
pm.insertKnotSurface( 'surface1.v[0.3]', ch=True )
# Inserts one knot (which is the default) into surface1 at
# parameter value v = 0.3.  When an isoparm is specified, the direction
# and parameter value is implied and the "p" and "d" flags can be omitted.

pm.insertKnotSurface( 'surface1', ch=True, p=0.3, nk=2, d=0 )
# Inserts two knots into surface1 at parameter value v = 0.3.

pm.insertKnotSurface( 'surface1', ch=True, p=0.3, p=0.5, p=0.8, nk=2, d=0 )
# Inserts two knots at each parameter value v = 0.3, 0.5 and 0.8.

pm.insertKnotSurface( 'surface1', ch=True, p=0.5, add=False, nk=3, d=1 )
# Inserts enough knots into surface1 at parameter value u = 0.5 to
# achieve a knot multiplicity of 3.