我在 pasteTheseKeys 方法中的 Maya 中 Python 代码的第 65 行收到此错误：
self.offsetVal = mc.intFieldGrp(self.int_offset, q=True, value1=True)
粘贴这些键在按下"粘贴键"按钮时调用。该关系在 commonButton 方法中定义。
完整代码：
# Animation Copy Tool
# Bakari Holmes 5/2/2015
# This is designed to copy and existing animation
# from one rig to another and make the process easier
# with a simple UI
# !!!Make sure you select keyframes in the graph editor to have them displayed before pasting!!!
import maya.cmds as mc
import functools
import maya.mel as mm
import pprint
"""OptionsWindow is a class definition of the basic window class.
The class is adding a set of controls to create a template
that resembles Maya's built-in tool option windows."""
class OptionsWindow(object):
#@classmethod
def showUI(cls):
win = cls()
win.create()
return win
def __init__(self):
self.window = "Animation Copy Tool"
self.title = "Animation Copier"
self.size = (546,350)
def create(self):
if mc.window(self.window,exists=True):
mc.deleteUI(self.window,window=True)
self.window = mc.window(self.window, title=self.title,widthHeight=self.size,menuBar=True)
self.mainForm = mc.formLayout(nd=100)
self.commandMenu()
self.commonButtons()
self.optionsBorder = mc.tabLayout(scrollable=True,height=1)
mc.formLayout(self.mainForm,e=True,attachForm=([self.optionsBorder,"top",0],[self.optionsBorder,"left",2],[self.optionsBorder,"right",2]),attachControl=([self.optionsBorder,"bottom",5,self.applyBtn]))
self.optionsForm=mc.formLayout(nd=100)
mc.tabLayout(self.optionsBorder,edit=True,tabLabel=(self.optionsForm,"Test"))
self.displayOptions()
self.tx_src = mc.textFieldGrp(label="Source Object", editable=False, text=sel[0])
self.int_offset = mc.intFieldGrp(label="Frame Offset Amount", value1=0)
mc.showWindow()
def commandMenu(self):
self.editMenu = mc.menu(label="Edit")
self.editMenuSave = mc.menuItem(label="Save Settings",command=self.editMenuSaveCmd)
self.editMenuReset = mc.menuItem(label="Reset Settings",command=self.editMenuResetCmd)
self.helpMenu = mc.menu(label="Help")
self.helpMenuItem = mc.menuItem(label="Help on %s"%(self.title),command=self.helpMenuCmd)
def helpMenuCmd(self,*args):
mc.launch(web="http://maya-python.com")
def editMenuSaveCmd(self,*args):pass
def editMenuResetCmd(self,*args):pass
def applyBtnCmd(self,*args):pass
def closeBtnCmd(self,*args):
mc.deleteUI(self.window,window=True)
#paste operation
def pasteTheseKeys(self):
self.offsetVal = mc.intFieldGrp(self.int_offset, q=True, value1=True)
self.selObj_pasteKeys = mc.ls(sl=True)
for objectQuant in selObj_pasteKeys:
print objectQuant
self.ct = mc.currentTime(query = True)
self.t = self.ct + self.offsetVal
mc.currentTime(self.t)
# mc.selectKey(selObj_pasteKeys[objectQuant])
mc.pasteKey(time=(self.t, self.t), f=(1.0,1.0), option="merge", copies=1, to=0, fo=0, vo=0)
def commonButtons(self):
self.commonBtnSize=(self.size[0]-18/3,26)
self.acctionBtn=mc.button(label="Paste Keys", command = self.pasteTheseKeys(), height=self.commonBtnSize[1])
self.closeBtn = mc.button(label="Close",height=self.commonBtnSize[1],command=self.closeBtnCmd)
mc.formLayout(self.mainForm, e=True, attachForm=([self.acctionBtn,"left",5],
[self.acctionBtn,"bottom",5],
[self.closeBtn,"bottom",5],
[self.closeBtn,"right",5]),
attachPosition=([self.acctionBtn,"right",1,33],
[self.closeBtn,"left",0,67]),
#attachControl=([self.applyBtn,"left",4,self.acctionBtn],
# [self.applyBtn,"right",4,self.closeBtn]),
attachNone=([self.acctionBtn,"top"],
[self.closeBtn,"top"]))
def displayOptions(self):pass
#########################
# end of class definition
#########################
def keys_as_dictionary(channel):
"""return a dictionay of times:values for <channel>"""
keys = mc.keyframe(channel, q=True, tc=True) or []
values = mc.keyframe(channel, q=True, vc=True) or []
return dict(zip(keys, values))
def channels(object):
"""return a dictionary of <plug>:<channel_dict> for each animated plug selected"""
keys = mc.keyframe(object, sl=True, n=True, q=True)
result = {}
for k in keys:
plugs = mc.listConnections(k, p=True)[0]
result[plugs]= keys_as_dictionary(k)
return result
copyAnim="copyAnim"
#store selected object info
sel = mc.ls(selection=True)
print sel
if (len(sel) != 1):
mm.eval("warning Must select one animated object;")
else:
mc.copyKey()
win = OptionsWindow()
win.create()
pprint.pprint(channels(sel))
我一直在梳理有关属性错误和实例属性与.class属性的其他条目，但仍然对为什么出现此错误感到非常困惑。
通常，只有在首次设置属性的值后才能访问该属性。无论属性是类属性还是实例属性，都是如此。
在这种特殊情况下，您似乎在首次设置属性之前尝试访问属性int_offset。
分析代码会发现，属性int_offset首先设置在方法末尾create()在到达该代码行之前引用。事实上，在方法create()的前面，调用的方法commonButtons()
int_offset的方法pasteTheseKeys()，而该方法还没有机会被定义。