Python cmds.keyframe函数代码示例

def keyCopyObjectOnce( target, start, end ):
    
    otherTarget = ''
    if target in CtlInfo.leftCtls:
        otherTarget = target.replace( '_L1_', '_R1_' )
    elif target in CtlInfo.rightCtls:
        otherTarget = target.replace( '_R1_', '_L1_' )
    if not otherTarget: return None
    
    attrs = cmds.listAttr( target, k=1 )

    for attr in attrs:
        times = cmds.keyframe( target+'.'+attr, q=1, t=(start,end), tc=1 )
        if not times: continue
        
        values = cmds.keyframe( target+'.'+attr, q=1, t=(start,end), vc=1 )
        keyLocks = cmds.keyTangent( target+'.'+attr, q=1, t=(start,end), lock=1 )
        inAngles = cmds.keyTangent( target+'.'+attr, q=1, t=(start,end), ia=1 )
        outAngles = cmds.keyTangent( target+'.'+attr, q=1, t=(start,end), oa=1 )

        cmds.cutKey( otherTarget+'.'+attr, t=(start+0.01, end-0.01) )
        
        for i in range( len( times ) ):
            value = values[i]
            ia = inAngles[i]
            oa = outAngles[i]
            cmds.setKeyframe( otherTarget+'.'+attr, t=times[i], v=value )
            cmds.keyTangent( otherTarget+'.'+attr, e=1, t=(times[i],times[i]), lock=0 )
            cmds.keyTangent( otherTarget+'.'+attr, e=1, t=(times[i],times[i]), ia=ia )
            cmds.keyTangent( otherTarget+'.'+attr, e=1, t=(times[i],times[i]), oa=oa )
            cmds.keyTangent( otherTarget+'.'+attr, e=1, t=(times[i],times[i]), lock=keyLocks[i] )

def random():
	import random
	curves = mc.keyframe(q=1, sl=1, name=1)
	for curve in curves:
		indexes = mc.keyframe(curve, q=1, sl=1, iv=1)
		for index in indexes:
			mc.keyframe(curve, r=1, vc=random.uniform(-1.0, 1.0), index=tuple([index]) )

def camMovementDetector():
	shotCam = [cam for cam in cmds.listCameras(perspective = True) if cam != 'persp' if cmds.objExists('%s.type' % cam) if cmds.getAttr('%s.type' % cam) == 'shotCam']
	shotCam = shotCam[0] if shotCam else None
	
	animated_curves = []
	anim_curves = cmds.findKeyframe(shotCam, curve = True)
	
	if anim_curves:
		keyframes_min_max = []
		
		for crv in anim_curves:
			keys = cmds.keyframe(crv, valueChange = True, q = True)
			frames = cmds.keyframe(crv, timeChange = True, q = True)
			keyframes = dict( zip(keys, frames) )
	
			if keyframes:
				if len(keyframes) > 1:
					start_anim = max( keyframes.values() )
					stop_anim = min( keyframes.values() )
					
					keyframes_min_max.append(start_anim) if start_anim not in keyframes_min_max else None
					keyframes_min_max.append(stop_anim) if stop_anim not in keyframes_min_max else None
					
		if keyframes_min_max:
			return min(keyframes_min_max), max(keyframes_min_max)

def hold():
	curves = mc.keyframe(q=1, sl=1, name=1)
	for curve in curves:
		index = mc.keyframe(curve, q=1, sl=1, iv=1)
		firstValue = mc.keyframe(curve, q=1, sl=1, vc=1)[0]
		mc.keyframe(curve, vc=firstValue, index=(index[0], index[-1]))
		mc.keyTangent(itt='flat', ott='flat')

def fillGapLinear(item=None,step=None, start=None, end=None) :


    try :
        if item is None : item = getItem()
        if step is None : step = datarate.get(item)
        if start is None or end is None :
            (start, end) = findCurrentGap(item)

    except ValueError as e :
        print "Could not fill linear gap: " + str(e)
        return

    fillObj = item


    gapval = [
        m.keyframe(fillObj + ".tx", q=True, time=( start, end ), vc=True),
        m.keyframe(fillObj + ".ty", q=True, time=( start, end ), vc=True),
        m.keyframe(fillObj + ".tz", q=True, time=( start, end ), vc=True) ]

    chan = [ ".tx", ".ty", ".tz" ]

    ktime = 0
    for i in range(0,3) :
        ktime = start + step
        while ktime <= end - step :
            progress = (ktime-start) / (end - start)
            kvalue   = (gapval[i][-1] - gapval[i][0]) * progress + gapval[i][0]
            m.setKeyframe( fillObj + chan[i], t=ktime, value = kvalue)
            ktime = ktime + step

    setActiveKeys(fillObj)

def chimaPullThemDown() :

	num = -6975.209
	nodes = mc.ls( sl=True )
	tys = []

	for node in nodes :
		
		src = mc.listConnections( '%s.ty' % node , p=True , s=True , d=False )[0]
		srcType = mc.nodeType( src )
		ty = ''

		if srcType == 'character' :
			ty = mc.listConnections( src , s=True , d=False )[0]
		elif srcType == 'animCurveTL' :
			ty = src.split( '.' )[0]
		else :
			print '%s has been constrained to object' % node
			ty = None
		if ty :
			tys.append( ty )
	
	mc.keyframe( tys ,
					e=True ,
					includeUpperBound=False ,
					animation='objects' ,
					time=(0,100000) ,
					r=True ,
					o='move' ,
					timeChange=0 ,
					valueChange=num
				)

def plot():
	curves = mc.keyframe(q=1, sl=1, name=1)
	if type(curves).__name__ != 'NoneType':
		for curve in curves:
			indexes = mc.keyframe(curve, q=1, sl=1, iv=1)
			if len(indexes) != 1:
				startTime = int(mc.keyframe(curve, q=1, tc=1, index=tuple([indexes[0]]))[0])
				endTime = int(mc.keyframe(curve, q=1, tc=1, index=tuple([indexes[1]]))[0])
				mc.selectKey(cl=1)
				for point in range(startTime, endTime):
					mc.setKeyframe(curve, insert=1, time=point)
					mc.selectKey(curve, time=( (startTime+0.01), (endTime-0.01) ), add=1, k=1)
			else:
				mc.warning('Only one keyframe is selected for the curve ' + curve + '.')
	else:
		sels = mc.ls(sl=1)
		if sels:
			timeSlider = mm.eval('$tmp = $gPlayBackSlider')
			if mc.timeControl(timeSlider, q=1, rv=1) == 1:
				startTime = int(mc.timeControl(timeSlider, q=1, ra=1)[0])
				endTime = int(mc.timeControl(timeSlider, q=1, ra=1)[1])
			else:
				startTime = int(mc.playbackOptions(q=1, min=1))
				endTime = int(mc.playbackOptions(q=1, max=1))

			curves = mc.keyframe(q=1, name=1)
			for curve in curves:
				for point in range(startTime, endTime):
					mc.setKeyframe(curve, insert=1, time=point)
					mc.selectKey(curve, time=( (startTime+0.01), (endTime-0.01) ), add=1, k=1)
		else:
			mc.warning('Nothing is selected.')

def getKeyByObject(obj):
    data = dict()
    
    #- object exists ?
    if not mc.objExists(obj):
        return data
    data['object'] = re.search('\w+$', obj).group()
    
    #- object has attributes ?
    attributes = mc.listAttr(obj, k=True)
    if not attributes:
        return data
    
    #- get keys
    for attr in attributes:
        times      = mc.keyframe(obj,   at=attr, q=True,  tc=True)
        values     = mc.keyframe(obj,   at=attr, q=True,  vc=True)
        inAngles   = mc.keyTangent(obj, at=attr, q=True,  ia=True)
        outAngles  = mc.keyTangent(obj, at=attr, q=True,  oa=True)
        inWeights  = mc.keyTangent(obj, at=attr, q=True,  iw=True)
        outWeights = mc.keyTangent(obj, at=attr, q=True,  ow=True)
        #- keys not found..
        if not times:
            continue
        
        #- save data..
        data.setdefault('keyData', {})[attr] = zip(times, values, inAngles, inWeights, outAngles, outWeights)
    
    return data

 def on_actionLoadSourceControl_triggered(self, clicked=None):
     if clicked == None:return
     selectOBJ = mc.ls(sl=True)
     
     if len(selectOBJ) == 0:return
     self.sourceControlFLD.setText(selectOBJ[0])
     
     KeyableAttr = mc.listAttr(selectOBJ[0], k=True)
     
     del self.sourceAtrLst[:]
     del self.targentAtrLst[:]
     # loop  Attributes..
     for Attr in KeyableAttr:
         SDKeys = mc.connectionInfo('%s.%s'%(selectOBJ[0], Attr), dfs=True)
         # loop driven Attributes..
         for key in SDKeys:
             if mc.nodeType(key) == 'unitConversion':
                 keyNode = mc.connectionInfo('%s.output'%key.split('.')[0], dfs=True)[0].split('.')[0]
             
             elif mc.nodeType(key) not in ('animCurve','animCurveTA', 'animCurveTL', 'animCurveTT','animCurveTU','animCurveUA','animCurveUL','animCurveUT','animCurveUU'):
                 continue
             else:
                 keyNode = key.split('.')[0]
             DriverValues     =  mc.keyframe(keyNode, q=True, fc=True)
             DrivenValues     =  mc.keyframe(keyNode, q=True, vc=True)
             DriverAttribute =  mc.connectionInfo('%s.output'%keyNode, dfs=True)[0]
             
             # if more than one Drivers, from add  node get the attribute..
             if  DriverAttribute.endswith(']'):
                 DriverAttribute = mc.connectionInfo('%s.output'%(DriverAttribute.split('.')[0]), dfs=True)[0]
              
             self.sourceAtrLst.append(['%s.%s'%(selectOBJ[0], Attr), DriverAttribute, DriverValues, DrivenValues])
     
     self.on_actionInputSearchReplace_triggered()

def canInsertKey(attr):
    '''
    Returns True if a given attribute can be keyframed with the insert keyframe
    command option.

    Raises KeyframeQueryFailed
    '''
    # Insert keys match the curvature of the existing curve.
    # They have a few limitations though...
    try:
        # You can't insert a keyframe if there are no keyframes to begin with
        if cmd.keyframe(attr, query=1, keyframeCount=1) == 0:
            return False
    except RuntimeError as err:
        raise KeyframeQueryFailed(err)

    # You don't want to insert a keyframe if the user changed something.
    # Keyframe always returns a list
    oldValue = cmd.keyframe(attr, query=1, eval=1)
    # GetAttr returns a single value if only one.  Otherwise, a list of
    # tuples ex: [(0, 0, 0)]
    newValue = cmd.getAttr(attr)

    if not isinstance(newValue, collections.Iterable) and len(oldValue) == 1:
        # There's only one attribute.
        if round(oldValue[0], 6) != round(newValue, 6):
            return False
    elif len(oldValue) == len(newValue[0]):
        # Attribute is an array, check each one.
        if any(round(oldValue[x], 6) != round(newValue[0][x], 6) for x in range(len(oldValue))):
            return False
    else:
        # I don't know what this is.
        return False
    return True

	def __init__( self, attrpath, keyTime=None, keyIdx=None ):
		#if the attrpath doesn't exist, then just create an empty key instance
		if not cmd.objExists(attrpath):
			self.obj = None
			self.attr = None
			self.time = None
			self.value = None
			self.iw = None
			self.ow = None
			self.itt = None
			self.ott = None
			return

		self.obj,self.attr = attrpath.split('.')

		#make sure the attr name is the long version of the name, its too annoying to have to deal with shortnames AND long names...
		self.attr = cmd.attributeQuery(self.attr,longName=True,node=self.obj)

		#and just for uber convenience, store the attrpath as well...
		self.attrpath = attrpath

		if keyIdx != None:
			times = cmd.keyframe(attrpath,index=keyIdx,query=True)
			self.time = times[0]
		elif keyTime != None:
			self.time = keyTime

		#is there a key at the time?
		if cmd.keyframe(attrpath,time=(keyTime,),query=True,keyframeCount=True):
			self.value = cmd.keyframe(attrpath,time=(keyTime,),query=True,valueChange=True)[0]
			self.iw,self.ow,self.ia,self.oa = cmd.keyTangent(attrpath,time=(keyTime,),query=True,inWeight=True,outWeight=True,inAngle=True,outAngle=True)
			self.itt,self.ott = cmd.keyTangent(attrpath,time=(keyTime,),query=True,inTangentType=True,outTangentType=True)

			#this is purely 'clean up after maya' code.  for whatever reason maya will return a tangent type of "fixed" even though its a completely invalid tangent type...  not sure what its supposed to map to, so I'm just assuming spline
			if self.itt == 'fixed': self.itt = 'spline'
			if self.ott == 'fixed': self.ott = 'spline'

		else:
			self.value = cmd.keyframe(attrpath,time=(keyTime,),query=True,eval=True,valueChange=True)
			index = self.index
			previousOutTT = None
			previousOutTW = None
			nextInTT = None
			nextInTW = None
			if index > 1:
				previousOutTT = cmd.keyTangent(attrpath,index=(index-1,),query=True,outTangentType=True)
				previousOutTW = cmd.keyTangent(attrpath,index=(index-1,),query=True,outWeight=True)
			else:
				previousOutTT = cmd.keyTangent(attrpath,index=(index,),query=True,outTangentType=True)
				previousOutTW = cmd.keyTangent(attrpath,index=(index,),query=True,outWeight=True)

			if index < cmd.keyframe(self.attr,query=True,keyframeCount=True):
				nextInTT = cmd.keyTangent(attrpath,index=(index+1,),query=True,inTangentType=True)
				nextInTW = cmd.keyTangent(attrpath,index=(index+1,),query=True,inWeight=True)
			else:
				nextInTT = cmd.keyTangent(attrpath,index=(index,),query=True,inTangentType=True)
				nextInTW = cmd.keyTangent(attrpath,index=(index,),query=True,inWeight=True)

			#now average the tangents
				self.iw = self.ow = (previousOutTW + nextInTW )/2

def export(anim_curve):
    """Creates a dictionary of all the data necessary to rebuild the
    curve."""
    
    # Check the curve exists and is an animation curve.
    if not cmds.objExists(anim_curve):
        cmds.error("Failed to find anim curve {0}".format(anim_curve))
        
    type = cmds.nodeType(anim_curve)
    if not is_type_exportable(type):
        cmds.error("Node {0} is not an anim curve".format(anim_curve))
    
    # Get the keys on the curve.
    keys = cmds.keyframe(anim_curve, query=True)
    key_count = cmds.keyframe(anim_curve,
                              keyframeCount=True,
                              query=True)
                              
    # Gather the value and in/out tangent type, and x,y coordinates of
    # each key.
    data = {'name':anim_curve,'type':type}
    data['key_data'] = [key_info_by_index(anim_curve, i)
                        for i in range(key_count)]
    
    # Get infinity values
    data['pre'] = cmds.getAttr("{0}.preInfinity".format(anim_curve))
    data['post'] = cmds.getAttr("{0}.postInfinity".format(anim_curve))
                
    # Get curve colour values
    data['useColor'] = cmds.getAttr("{0}.useCurveColor".format(
                                                            anim_curve))
    data['color'] = cmds.getAttr("{0}.curveColor".format(anim_curve))[0]
    
    return data 

    def __init__(self,
                 name='mlBreakdownDraggerContext',
                 minValue=None,
                 maxValue=None,
                 defaultValue=0,
                 title = 'Breakdown'):

        self.keySel = utl.KeySelection()
        if self.keySel.selectedKeys():
            pass
        elif self.keySel.visibleInGraphEditor():
            self.keySel.setKeyframe()
        elif self.keySel.keyedChannels():
            self.keySel.setKeyframe()

        if not self.keySel.curves:
            return

        utl.Dragger.__init__(self, defaultValue=defaultValue, minValue=minValue, maxValue=maxValue, name=name, title=title)


        #setup tangent type
        itt,ott = utl.getHoldTangentType()

        self.time = dict()
        self.value = dict()
        self.next = dict()
        self.prev = dict()
        self.average = dict()

        for curve in self.keySel.curves:
            if self.keySel.selected:
                self.time[curve] = mc.keyframe(curve, query=True, timeChange=True, sl=True)
                self.value[curve] = mc.keyframe(curve, query=True, valueChange=True, sl=True)
            else:
                self.time[curve] = self.keySel.time
                self.value[curve] = mc.keyframe(curve, time=self.keySel.time, query=True, valueChange=True)

            self.next[curve] = list()
            self.prev[curve] = list()
            self.average[curve] = list()

            for i in self.time[curve]:
                next = mc.findKeyframe(curve, time=(i,), which='next')
                prev = mc.findKeyframe(curve, time=(i,), which='previous')
                n = mc.keyframe(curve, time=(next,), query=True, valueChange=True)[0]
                p = mc.keyframe(curve, time=(prev,), query=True, valueChange=True)[0]

                self.next[curve].append(n)
                self.prev[curve].append(p)
                self.average[curve].append((n+p)/2)

                #set the tangents on this key, and the next and previous, so they flatten properly
                mc.keyTangent(curve, time=(i,), itt=itt, ott=ott)
                mc.keyTangent(curve, time=(next,), itt=itt)
                mc.keyTangent(curve, time=(prev,), ott=ott)

        self.setTool()
        self.drawString('Left: Weight Prev/Next, Middle: Weight Average')
        OpenMaya.MGlobal.displayWarning('Left: Weight Prev/Next, Middle: Weight Average')

def getMinMax():            
          
    rangeStart  = cmds.playbackOptions(query=True, minTime=True)
    rangeEnd    = cmds.playbackOptions(query=True, maxTime=True)
    curvesShown = cmds.animCurveEditor( 'graphEditor1GraphEd', query=True, curvesShown=True)
    keysTimes   = []
    keysValues  = []
    keysShown   = []
    
    if curvesShown:
        for aCurve in curvesShown:
            keysTimes.extend(cmds.keyframe(aCurve, query=True, timeChange=True))
            keysValues.extend(cmds.keyframe(aCurve, query=True, valueChange=True))
            for n, key in enumerate(keysTimes):
                if rangeStart <= key <= rangeEnd:
                    keysShown.append(keysValues[n])
                    
        keyMax = max(keysShown)
        keyMin = min(keysShown)
        total  = keyMax - keyMin
        if total == 0: total = 1
        border = total * .1
        
        return [keyMax+border, keyMin-border]
    else:
        return [0, 100]

def returnSetDrivenCurveInfo(driverAttribute,drivenObject):
    """ 
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>   
    DESCRIPTION:
    Returns the info for a sdk curve

    ARGUMENTS:
    driverAttribute(string)
    drivenObject(string)

    RETURNS:
    curveInfo(dict){time:value,etc...}
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    """
    driverCurve = returnDriverCurve(driverAttribute,drivenObject)
    
    if driverCurve:
        setDrivenCurveInfo = {}
        keyCnt = mc.keyframe(driverCurve[0],q=True, keyframeCount = True)
        curveValues = mc.keyframe(driverCurve[0],q=True, vc=True)

        for cnt in range(keyCnt):
            
            # Because maya is stupid and the syntax for this in pythong unfathomable my mere mortals such as I
            mel.eval('string $animCurve = "%s";' %driverCurve[0])
            mel.eval('int $cnt = %i;' %cnt)
            keyTimeValue = mel.eval('keyframe -index $cnt -query -fc $animCurve')
            
            setDrivenCurveInfo[keyTimeValue[0]] = (curveValues[cnt])
            
        return setDrivenCurveInfo