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 “-nk” flag. eg. if you specify none, then the default (one) knot will be added at each specified parameter value. If you specify one “-nk” value then that number of knots will be added at each parameter value. Otherwise, you must specify the same number of “-nk” flags as “-p” flags, defining the number of knots to be added at each specified parameter value. You can insert up to “degree” knots 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 directionDefault:1Advanced flags
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
	Name the resulting object
nodeState (nds)		int
	Modifies the node state. See the node documentation for more information.Note:For advanced users only.Common flags
numberOfKnots (nk)		int
	How many knots to insertDefault:1
object (o)		bool
	Create the result, or just the dependency node
parameter (p)		float
	Parameter value(s) where knots are addedDefault:0.0
replaceOriginal (rpo)		bool
	Create “in place” (i.e., replace)Flag can appear in Create mode of commandFlag can have multiple arguments, passed either as a tuple or a list.

Derived from mel command maya.cmds.insertKnotSurface

Example:

import pymel.core as pm

import maya.cmds as cmds

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.