basicObjectSet.py

#-
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#+

#
# Creation Date:   12 October 2006
#
# Description:
#       Trivial extension of MPxObjectSet
#

import maya.OpenMaya as OpenMaya
import maya.OpenMayaMPx as OpenMayaMPx
import math, sys

kNodeName = "spBasicObjectSet"
kCmdName = "spBasicObjectSetTest"
kNodeId = OpenMaya.MTypeId(0x87012)

# Node definition
class BasicObjectSet(OpenMayaMPx.MPxObjectSet):
        def __init__(self):
                OpenMayaMPx.MPxObjectSet.__init__(self)


class BasicObjectSetTest(OpenMayaMPx.MPxCommand):
        def __init__(self):
                OpenMayaMPx.MPxCommand.__init__(self)
                self.__fDGMod = OpenMaya.MDGModifier()


        def doIt(self, args):
                # Create the node
                #
                setNode = self.__fDGMod.createNode(kNodeId)
                self.__fDGMod.doIt()

                # Populate the set with the selected items
                #
                selList = OpenMaya.MSelectionList()
                OpenMaya.MGlobal.getActiveSelectionList(selList)
                if selList.length():
                        setFn = OpenMaya.MFnSet(setNode)
                        setFn.addMembers(selList)

                depNodeFn = OpenMaya.MFnDependencyNode(setNode)
                OpenMayaMPx.MPxCommand.setResult(depNodeFn.name())


#####################################################################


# creator
def nodeCreator():
        return OpenMayaMPx.asMPxPtr(BasicObjectSet())


# initializer
def nodeInitializer():
        # nothing to initialize
        pass


def cmdCreator():
        return OpenMayaMPx.asMPxPtr(BasicObjectSetTest())


def cmdSyntaxCreator():
        return OpenMaya.MSyntax()


# initialize the script plug-in
def initializePlugin(mobject):
        mplugin = OpenMayaMPx.MFnPlugin(mobject, "Autodesk", "1.0", "Any")
        try:
                mplugin.registerCommand(kCmdName, cmdCreator, cmdSyntaxCreator)
        except:
                sys.stderr.write("Failed to register command: %s" % kCmdName)
                raise

        try:
                mplugin.registerNode(kNodeName, kNodeId, nodeCreator, nodeInitializer, OpenMayaMPx.MPxNode.kObjectSet)
        except:
                sys.stderr.write("Failed to register node: %s" % kNodeName)
                raise


# uninitialize the script plug-in
def uninitializePlugin(mobject):
        mplugin = OpenMayaMPx.MFnPlugin(mobject)
        try:
                mplugin.deregisterCommand(kCmdName)
        except:
                sys.stderr.write("Failed to deregister command: %s" % kCmdName)
                raise

        try:
                mplugin.deregisterNode(kNodeId)
        except:
                sys.stderr.write("Failed to deregister node: %s" % kNodeName)
                raise

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