ml_utilities.py 文件源码

def curves(self):
        '''
        The keySelections's animation curve list.
        '''

        # if self._curves is False or None, then it has been initialized and curves haven't been found.
        if self._curves == []:

            #find anim curves connected to channels or nodes
            for each in (self._channels, self._nodes):
                if not each:
                    continue
                # this will only return time based keyframes, not driven keys
                self._curves = mc.keyframe(each, time=(':',), query=True, name=True)

                if self._curves:
                    self._curvesCulled = False
                    break
            if not self._curves:
                self._curves = False

        # need to remove curves which are unkeyable
        # supposedly referenced keys are keyable in 2013, I'll need to test that and update
        if self._curves and not self._curvesCulled:
            remove = list()
            for c in self._curves:
                if mc.referenceQuery(c, isNodeReferenced=True):
                    remove.append(c)
                else:
                    plug = mc.listConnections('.'.join((c,'output')), source=False, plugs=True)
                    if plug:
                        if not mc.getAttr(plug, keyable=True) and not mc.getAttr(plug, settable=True):
                            remove.append(c)
            if remove:
                for r in remove:
                    self._curves.remove(r)
            self._curvesCulled = True

        return self._curves