pymel.core.modeling.stitchSurface¶

stitchSurface(*args, **kwargs)¶

The stitchSurface command aligns two surfaces together to be G(0) and/or G(1) continuous by ajusting only the Control Vertices of the surfaces. The two surfaces can be stitched by specifying the two isoparm boundary edges that are to stitched together. The edge to which the two surfaces are stitched together is obtained by doing a weighted average of the two edges. The weights for the two edges is specified using the flags -wt0, -wt1 respectively.

Flags:

Long Name / Short Name		Argument Types	Properties
bias / b		float
	Blend CVs in between input surface and result from stitch. A value of 0.0 returns the input surface. Default:1.0
caching / cch		bool
	Toggle caching for all attributes so that no recomputation is needed
cascade / c		bool
	Cascade the created stitch node. (Only if the surface has a stitch history) Default is ‘false’.
constructionHistory / ch		bool
	Turn the construction history on or off.
cvIthIndex / ci		int
	The ith boundary CV index on the input surface. Default:-1
cvJthIndex / cj		int
	The jth boundary CV index on the input surface. Default:-1
fixBoundary / fb		bool
	Fix Boundary CVs while solving for any G1 constraints. Default:false
frozen / fzn		bool
keepG0Continuity / kg0		bool
	Stitch together with positional continuity. Default is ‘true’.
keepG1Continuity / kg1		bool
	Stitch together with tangent continuity. Default is ‘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
	Maya dependency nodes have 6 possible states. The Normal (0), HasNoEffect (1), and Blocking (2)states can be used to alter how the graph is evaluated. The Waiting-Normal (3), Waiting-HasNoEffect (4), Waiting-Blocking (5)are for internal use only. They temporarily shut off parts of the graph during interaction (e.g., manipulation). The understanding is that once the operation is done, the state will be reset appropriately, e.g. Waiting-Blockingwill reset back to Blocking. The Normaland Blockingcases apply to all nodes, while HasNoEffectis node specific; many nodes do not support this option. Plug-ins store state in the MPxNode::stateattribute. Anyone can set it or check this attribute. Additional details about each of these 3 states follow. StateDescriptionNormalThe normal node state. This is the default.HasNoEffectThe HasNoEffectoption (a.k.a. pass-through), is used in cases where there is an operation on an input producing an output of the same data type. Nearly all deformers support this state, as do a few other nodes. As stated earlier, it is not supported by all nodes. Its typical to implement support for the HasNoEffectstate in the nodes compute method and to perform appropriate operations. Plug-ins can also support HasNoEffect. The usual implementation of this state is to copy the input directly to the matching output without applying the algorithm in the node. For deformers, applying this state leaves the input geometry undeformed on the output. BlockingThis is implemented in the depend node base class and applies to all nodes. Blockingis applied during the evaluation phase to connections. An evaluation request to a blocked connection will return as failures, causing the destination plug to retain its current value. Dirty propagation is indirectly affected by this state since blocked connections are never cleaned. When a node is set to Blockingthe behavior is supposed to be the same as if all outgoing connections were broken. As long as nobody requests evaluation of the blocked node directly it wont evaluate after that. Note that a blocked node will still respond to getAttrrequests but a getAttron a downstream node will not reevaluate the blocked node. Setting the root transform of a hierarchy to Blockingwont automatically influence child transforms in the hierarchy. To do this, youd need to explicitly set all child nodes to the Blockingstate. For example, to set all child transforms to Blocking, you could use the following script. import maya.cmds as cmds def blockTree(root): nodesToBlock = [] for node in {child:1 for child in cmds.listRelatives( root, path=True, allDescendents=True )}.keys(): nodesToBlock += cmds.listConnections(node, source=True, destination=True ) for node in {source:1 for source in nodesToBlock}.keys(): cmds.setAttr( ‘%s.nodeState’ % node, 2 ) Applying this script would continue to draw objects but things would not be animated. Default:kdnNormal
numberOfSamples / ns		int
	The number of samples on the edge. Default is 20.
object / o		bool
	Create the result, or just the dependency node.
parameterU / u		float
	The U parameter value on surface for a point constraint. Default:-10000
parameterV / v		float
	The V parameter value on surface for a point constraint. Default:-10000
positionalContinuity / pc		bool
	Toggle on (off) G0 continuity at edge corresponding to multi index. Default:true
replaceOriginal / rpo		bool
	Create in place(i.e., replace).
stepCount / sc		int
	Step count for the number of discretizations. Default:20
tangentialContinuity / tc		bool
	Toggle on (off) G1 continuity across edge corresponding to multi index. Default:false
togglePointNormals / tpn		bool
	Toggle on (off) normal point constraints on the surface. Default:false
togglePointPosition / tpp		bool
	Toggle on (off) position point constraints on the surface. Default:true
toggleTolerance / tt		bool
	Toggle on (off) so as to use Tolerance or specified steps for discretization. Default:false
tolerance / tol		float
	Tolerance to use while discretizing the edge. Default:0.1 Common flags
weight0 / wt0		float
	The weighting factor for the first edge. Default is 0.5.
weight1 / wt1		float
	The weighting factor for the second edge. Default is 0.5. Flag can have multiple arguments, passed either as a tuple or a list.

Derived from mel command maya.cmds.stitchSurface

Example:

import pymel.core as pm

# Stitch the two surfaces along the two specified surface isoparam with C0 continuity.
# Since wt0 = 0.0, both the surfaces are stitched to surface2.vn[0] really.
pm.stitchSurface( 'surface1.vn[1.0]', 'surface2.vn[0.0]', kg0=False, kg1=True, cascade=False, ns=100, wt0=0.0, wt1=1.0 )