pymel.core.modeling.pointOnSurface

pointOnSurface(*args, **kwargs)

This command returns information for a point on a surface. If no flag is specified, this command assumes p/position by default. If more than one flag is specifed, then a string array is returned.

Flags:

Long name (short name)		Argument Types	Properties
caching (cch)		bool
constructionHistory (ch)		bool
	Turn the construction history on or offFlag can appear in Create mode of commandFlag can have multiple arguments, passed either as a tuple or a list.
nodeState (nds)		int
normal (no)		bool
	Returns the (x,y,z) normal of the specified point on the surface
normalizedNormal (nn)		bool
	Returns the (x,y,z) normalized normal of the specified point on the surface
normalizedTangentU (ntu)		bool
	Returns the (x,y,z) normalized U tangent of the specified point on the surface
normalizedTangentV (ntv)		bool
	Returns the (x,y,z) normalized V tangent of the specified point on the surfaceCommon flags
parameterU (u)		float
	The U parameter value on surfaceDefault:0.0
parameterV (v)		float
	The V parameter value on surfaceDefault:0.0
position (p)		bool
	Returns the (x,y,z) positon of the specified point on the surface
tangentU (tu)		bool
	Returns the (x,y,z) U tangent of the specified point on the surface
tangentV (tv)		bool
	Returns the (x,y,z) V tangent of the specified point on the surface
turnOnPercentage (top)		bool
	Whether the parameter is normalized (0,1) or notDefault:false

Derived from mel command maya.cmds.pointOnSurface

Example:

import pymel.core as pm

import maya.cmds as cmds

pm.pointOnSurface( 'surface1', u=0.5, v=1.0, position=True )
# Returns the (x,y,z) position of the surface at parameter (u=0.5,v=1.0).

infoNode = pm.pointOnSurface('surface1', ch= True, u=0.55, v=0.33)
pm.getAttr(infoNode + ".position" )  # returns the position
# The pointOnSurface command returns  a string which is the name of
# a new pointOnSurfaceInfo dependency node.  With this node connected
# to the surface, the output values of the pointOnSurfaceInfo node
# are always current even if, for example, the surface parameters are
# being animated.