extrude is undoable, queryable, and editable.
This command computes a surface given a profile curve and possibly
a path curve. There are three ways to extrude a profile curve. The
most basic method is called a "distance" extrude where direction and
length are specified. No path curve is necessary in this case. The
second method is called "flat" extrude. This method sweeps the profile
curve down the path curve without changing the orientation of the
profile curve. Finally, the third method is called "tube" extrude.
This method sweeps a profile curve down a path curve while the
profile curve rotates so that it maintains a relationship with the
path curve.
In query mode, return type is based on queried flag.
| Long name (short name) |
Argument types |
Properties |
|
-caching(-cch)
|
boolean
|
  
|
|
Toggle caching for all attributes so that no recomputation is needed
|
|
-degreeAlongLength(-dl)
|
int
|
|
|
Surface degree along the distance when a distance extrude is performed
Default: 1
|
|
-direction(-d)
|
linear linear linear
|
|
|
The direction in which to extrude.
Use only for distance extrudeType and useProfileNormal off
|
|
-directionX(-dx)
|
linear
|
|
|
X of the direction
Default: 0
|
|
-directionY(-dy)
|
linear
|
|
|
Y of the direction
Default: 1
|
|
-directionZ(-dz)
|
linear
|
|
|
Z of the direction
Default: 0
|
|
-extrudeType(-et)
|
int
|
|
|
The extrude type (distance-0, flat-1, or tube-2)
Default: 2
|
|
-fixedPath(-fpt)
|
boolean
|
|
|
If true, the resulting surface will be placed at the path curve.
Otherwise, the resulting surface will be placed at the profile curve.
Default: false
|
|
-length(-l)
|
linear
|
|
|
The distance to extrude.
Use only for distance extrudeType
Default: 1
|
|
-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-Blocking will reset
back to Blocking.
The Normal and Blocking cases apply to all nodes, while
HasNoEffect is node specific; many nodes do not support this option.
Plug-ins store state in the MPxNode::state attribute. Anyone can set
it or check this attribute. Additional details about each of these 3 states follow.
| State |
Description |
| Normal |
The normal node state. This is the default. |
| HasNoEffect |
The HasNoEffect option (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.
It’s typical to implement support for the HasNoEffect state in
the node’s 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.
|
| Blocking |
This is implemented in the depend node base class and applies to all nodes.
Blocking is 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 Blocking the 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 won’t evaluate after that. Note that a blocked
node will still respond to getAttr requests but a getAttr on a
downstream node will not reevaluate the blocked node.
Setting the root transform of a hierarchy to Blocking won’t automatically
influence child transforms in the hierarchy. To do this, you’d need to
explicitly set all child nodes to the Blocking state.
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
|
|
-pivot(-p)
|
linear linear linear
|
|
|
The pivot point used for tube extrudeType
|
|
-reverseSurfaceIfPathReversed(-rsp)
|
boolean
|
|
|
If true, extrude type is tube (2) and path has been internally reversed then computed surface is reversed in the direction corresponding to the path.
Default: false
|
|
-rotation(-ro)
|
angle
|
|
|
Amount to rotate the profile curve as it sweeps along the path curve.
Default: 0.0
|
|
-scale(-sc)
|
float
|
|
|
Amount to scale the profile curve as it sweeps along the path curve.
Default: 1.0
|
|
-subCurveSubSurface(-scs)
|
boolean
|
|
|
If true, curve range on the path will get applied to the resulting surface instead of cut before the extrude.
Default: false
|
|
-useComponentPivot(-ucp)
|
int
|
|
|
Use closest endpoint of the path - 0, component pivot - 1 or the center of the bounding box of the profile - 2
Default: 0
|
|
-useProfileNormal(-upn)
|
boolean
|
|
|
If true, use the profile curve normal for the direction in which to extrude.
Use only for distance or tube extrudeType.
Default: false
|
|
| Common flags |
-constructionHistory(-ch)
|
boolean
|
|
|
Turn the construction history on or off.
|
|
-mergeItems(-mi)
|
boolean
|
|
|
Merge component results where possible. For example, instead of returning a[1] and a[2], return a[1:2].
|
|
-name(-n)
|
string
|
|
|
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.
|
|
-object(-o)
|
boolean
|
|
|
Create the result, or just the dependency node.
|
|
-polygon(-po)
|
int
|
|
|
The value of this argument controls the type of the object
created by this operation
- 0: nurbs surface
- 1: polygon (use nurbsToPolygonsPref to set the parameters for the conversion)
- 2: subdivision surface (use nurbsToSubdivPref to set the parameters for the conversion)
- 3: Bezier surface
- 4: subdivision surface solid (use nurbsToSubdivPref to set the
parameters for the conversion)
|
|
-range(-rn)
|
boolean
|
|
|
Force a curve range on complete input curve.
|
|
-rebuild(-rb)
|
boolean
|
|
|
Rebuild the input curve(s) before using them in the operation. Use nurbsCurveRebuildPref to set the parameters for the conversion.
|
|
Flag can be used more than once in a command.