pymel.core.modeling.nurbsSquare¶
- nurbsSquare(*args, **kwargs)¶
The nurbsSquare command creates a square
Flags:
Long Name / Short Name Argument Types Properties caching / cch bool Toggle caching for all attributes so that no recomputation is needed center / c float, float, float The center point of the square. centerX / cx float X of the center point. Default:0 centerY / cy float Y of the center point. Default:0 centerZ / cz float Z of the center point. Default:0 constructionHistory / ch bool Turn the construction history on or off. degree / d int The degree of the resulting circle: 1 - linear, 2 - quadratic, 3 - cubic, 5 - quintic, 7 - heptic Default:3 frozen / fzn bool 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 normal / nr float, float, float The normal of the plane in which the square will lie. normalX / nrx float X of the normal direction. Default:0 normalY / nry float Y of the normal direction. Default:0 normalZ / nrz float Z of the normal direction. Default:1 object / o bool Create the result, or just the dependency node. Flag can have multiple arguments, passed either as a tuple or a list. sideLength1 / sl1 float The length of a side on the square. Default:1.0 sideLength2 / sl2 float The length of an adjacent side on the square. Default:1.0 spansPerSide / sps int The number of spans per side determines the resolution of the square. Default:1 Common flags Derived from mel command maya.cmds.nurbsSquare
Example:
import pymel.core as pm # create degree 1 square with side length 2, center (0,0,0) on the # x-y plane pm.nurbsSquare( nr=(0, 0, 1), d=1, c=(0, 0, 0), sl1=2, sl2=2 ) # Result: [nt.Transform(u'nurbsSquare1'), nt.MakeNurbsSquare(u'makeNurbsSquare1')] # # create degree 2 rectangle with length 2,4 at origin on the x-y plane pm.nurbsSquare( d=2, nr=(0, 0, 1), c=(0, 0, 0), sl1=2, sl2=4 ) # Result: [nt.Transform(u'nurbsSquare2'), nt.MakeNurbsSquare(u'makeNurbsSquare2')] # # create square of degree 3,side lengths 3, 4 spans per side pm.nurbsSquare( nr=(0, 0, 1), c=(0, 0, 0), d=3, sl1=3, sl2=3, sps=4 ) # Result: [nt.Transform(u'nurbsSquare3'), nt.MakeNurbsSquare(u'makeNurbsSquare3')] #