Python maya.OpenMaya.MFnUnitAttribute() Examples

The following are 4 code examples of maya.OpenMaya.MFnUnitAttribute(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module maya.OpenMaya , or try the search function .
Example #1
Source File: oyTrajectoryDrawer.py    From anima with MIT License 6 votes vote down vote up 
def nodeInitializer():
    '''initializer
    '''
    # create the size attr
    uAttrFn = OpenMaya.MFnUnitAttribute()
    oyTrajectoryDrawer.aSize = uAttrFn.create( "size", "in", OpenMaya.MFnUnitAttribute.kDistance )
    uAttrFn.setDefault(1.0)
    oyTrajectoryDrawer.addAttribute( oyTrajectoryDrawer.aSize )
    
    # create the trajectory positions attr
    nAttrFn = OpenMaya.MFnNumericAttribute()
    tAttrFn = OpenMaya.MFnTypedAttribute()
    mAttrFn = OpenMaya.MFnMessageAttribute()
    
    defaultVectorArray = OpenMaya.MVectorArray()
    vectorArrayDataFn = OpenMaya.MFnVectorArrayData()
    vectorArrayDataFn.create( defaultVectorArray )
    
    oyTrajectoryDrawer.aTPos = tAttrFn.create( "trajectoryPosition", "tp", OpenMaya.MFnData.kVectorArray, vectorArrayDataFn.object() )
    
    tAttrFn.setWritable(True)
    tAttrFn.setStorable(True)
    
    oyTrajectoryDrawer.addAttribute( oyTrajectoryDrawer.aTPos )
Example #2
Source File: instanceAlongCurve.py    From instanceAlongCurve with MIT License 5 votes vote down vote up 
def addCompoundVector3Attribute(cls, compoundAttribute, attributeName, unitType, arrayAttr, inputAttr, defaultValue):

        # Schematic view of compound attribute:
        # compoundAttribute[?]
        #   compoundAttributeX
        #   compoundAttributeY
        #   compoundAttributeZ

        unitAttr = OpenMaya.MFnUnitAttribute()
        nAttr = OpenMaya.MFnNumericAttribute()

        compoundAttribute.x = unitAttr.create(attributeName + "X", attributeName + "X", unitType, defaultValue.x)
        unitAttr.setWritable( inputAttr )
        cls.addAttribute(compoundAttribute.x)

        compoundAttribute.y = unitAttr.create(attributeName + "Y", attributeName + "Y", unitType, defaultValue.y)
        unitAttr.setWritable( inputAttr )
        cls.addAttribute(compoundAttribute.y)

        compoundAttribute.z = unitAttr.create(attributeName + "Z", attributeName + "Z", unitType, defaultValue.z)
        unitAttr.setWritable( inputAttr )
        cls.addAttribute(compoundAttribute.z)

        # Output compound
        compoundAttribute.compound = nAttr.create(attributeName, attributeName,
                                     compoundAttribute.x, compoundAttribute.y, compoundAttribute.z)
        nAttr.setWritable( inputAttr )
        nAttr.setArray( arrayAttr )
        nAttr.setUsesArrayDataBuilder( arrayAttr )
        nAttr.setDisconnectBehavior(OpenMaya.MFnAttribute.kDelete)
        cls.addAttribute(compoundAttribute.compound)
Example #3
Source File: instanceAlongCurve.py    From instanceAlongCurve with MIT License 5 votes vote down vote up 
def addCurveAxisHandleAttribute(cls, curveAxisHandleAttr, attributeName, defaultAxisValue):

        # Schematic view of compound attribute:
        # curveAxisHandle[]
        #   curveAxisHandleParameter
        #   curveAxisHandleAngle

        nAttr = OpenMaya.MFnNumericAttribute()
        cmpAttr = OpenMaya.MFnCompoundAttribute()

        curveAxisHandleAttr.parameter = nAttr.create(attributeName + "Parameter", attributeName + "Parameter", OpenMaya.MFnNumericData.kDouble, 0.0)
        nAttr.setWritable( True )
        cls.addAttribute(curveAxisHandleAttr.parameter)

        curveAxisHandleAttr.angle = nAttr.create(attributeName + "Angle", attributeName + "Angle", OpenMaya.MFnNumericData.kDouble, 0.0)
        nAttr.setWritable( True )
        cls.addAttribute(curveAxisHandleAttr.angle)

        # cls.addCompoundVector3Attribute(curveAxisHandleAttr.axis, attributeName + "Axis", OpenMaya.MFnUnitAttribute.kAngle, False, True, defaultAxisValue)

        # Build compound array attribute
        curveAxisHandleAttr.compound = cmpAttr.create(attributeName, attributeName)
        cmpAttr.addChild(curveAxisHandleAttr.parameter)
        cmpAttr.addChild(curveAxisHandleAttr.angle)
        cmpAttr.setWritable( True )
        cmpAttr.setArray( True )
        cmpAttr.setUsesArrayDataBuilder( True )

        cls.addAttribute(curveAxisHandleAttr.compound)
Example #4
Source File: shakeNode.py    From tutorials with MIT License 4 votes vote down vote up 
def nodeInitializer():

	nAttr = OpenMaya.MFnNumericAttribute()
	uAttr = OpenMaya.MFnUnitAttribute()

	# input

	ShakeNode.amp = nAttr.create( "amplitude", "amp", OpenMaya.MFnNumericData.k3Float, 1.0 )
	nAttr.setStorable(True)
	nAttr.setKeyable(True)

	ShakeNode.freq = nAttr.create( "frequency", "freq", OpenMaya.MFnNumericData.k3Float, 1.0 )
	nAttr.setStorable(True)
	nAttr.setKeyable(True)

	ShakeNode.seed = nAttr.create( "randomSeed", "seed", OpenMaya.MFnNumericData.kLong, 1000 )
	nAttr.setStorable(True)
	nAttr.setKeyable(False)
	nAttr.setMin(0)

	ShakeNode.octaves = nAttr.create( "octaves", "oct", OpenMaya.MFnNumericData.kInt, 3 )
	nAttr.setStorable(True)
	nAttr.setKeyable(True)
	nAttr.setMin(2)
	
	# the time attribute should be connected to the default "time1" node
	# or any time node to provide a changing time value
	ShakeNode.time = uAttr.create( "currentTime", "time" , OpenMaya.MFnUnitAttribute.kTime,  0.0 )
	uAttr.setHidden(True)
	nAttr.setStorable(False)
		
	# output
	ShakeNode.output = nAttr.create( "output", "out", OpenMaya.MFnNumericData.k3Float, 0.0 )
	nAttr.setStorable(False)
	nAttr.setWritable(False)
	nAttr.setHidden(False)


	# add attributes to the node
	ShakeNode.addAttribute( ShakeNode.amp )
	ShakeNode.addAttribute( ShakeNode.freq )
	ShakeNode.addAttribute( ShakeNode.seed )
	ShakeNode.addAttribute( ShakeNode.time )
	ShakeNode.addAttribute( ShakeNode.octaves )
	ShakeNode.addAttribute( ShakeNode.output )

	# when one attribute is changed, it will cause
	# the other to become "dirty", meaning that its value
	# should be computed again
	ShakeNode.attributeAffects( ShakeNode.amp, ShakeNode.output )
	ShakeNode.attributeAffects( ShakeNode.freq, ShakeNode.output )
	ShakeNode.attributeAffects( ShakeNode.seed, ShakeNode.output )
	ShakeNode.attributeAffects( ShakeNode.octaves, ShakeNode.output )
	ShakeNode.attributeAffects( ShakeNode.time, ShakeNode.output )
	


# initialize the script plug-in