我没有包含用于跟踪maya节点的补充文件，所以如果你看到attr，就知道它是一种跟踪dags / MObjects以及传递变量和查找那些属性的路径的方法。跟踪节点。 Polygon和PolygonShape是继承该节点跟踪方法的类似类，但特定于这些类型的节点。他们的代码在这个文件中更进一步，但是我将代码排除在外，以便不再需要它。可以说，它们只跟踪多边形dag和polygonShape MObj。
这是我的问题。
# Error: line 1: TypeError: file D:/Libraries/My Documents/maya/scripts\toolbox\Shapes.py line 332: an integer is required #
第332行是底部的setWeight行。
使用这段代码，我可以得到权重，并将它们的顶点分开看似很好，但是当我尝试setWeights时，它说它需要一个int变量。该int变量指的是setWeight方法的vert by vert版本。由于某种原因，它不接受我提交的变量并回复到错误的方法。我检查了进入方法的所有类型。他们是对的。我检查了影响的长度和重量的长度是否正确。由于它们是正确的类型和正确的长度，我只能假设它与self.vertexComp有关，但是这个MObject正好用于获取，我已经看到这个setWeights的版本使用了确切的同样的方法。
任何人都可以看看这个，看看是什么导致setWeight得到错误：
import maya.cmds as cmds
import Attributor as attr #custom package to interact with nodes
import maya.api.OpenMaya as om
import maya.api.OpenMayaAnim as omAnim
class skinCluster(attr.node):
outputGeometry = attr.connection("outputGeometry")
def getInfl_IDs(self,dagObj=False,pathFirst=False):
infDags = self.skinFn.influenceObjects()
infIds = {}
for x in xrange(len(infDags)):
infPath = attr.joint(nodeName=infDags[x].fullPathName()) if dagObj else infDags[x].fullPathName()
infId = int(self.skinFn.indexForInfluenceObject(infDags[x]))
if pathFirst:
infIds[infPath] = infId
else:
infIds[infId] = infPath
return dict(infIds)
# Returns something like {0:"joint1",1:"joint2"}
# useful for figuring out what list indexes to edit with weight tools
def __init__(self, nodeName=None, tracker=None, vertices=None, shapeNode=None):
if not nodeName and vertices:
nodeName = polygonShape(nodeName=vertices[0]).inMesh["in"][0]
self.initialize(nodeName=nodeName, tracker=tracker)
self.polygon = polygon(nodeName=self.outputGeometry["out"][0])
self.shapeNode = shapeNode if shapeNode else polygonShape(nodeName=self.polygon.shapeNodes[0].path)
self.skinFn = omAnim.MFnSkinCluster(self.tracker.obj)
self.vertexComp = om.MFnSingleIndexedComponent().create(om.MFn.kMeshVertComponent)
def getWeights(self, vertices=None):
vertWeights = self.skinFn.getWeights(self.polygon.tracker.dag, self.vertexComp)
weights = list(vertWeights[-2])
infCount = vertWeights[-1]
weights = [weights[x:x+infCount] for x in range(0,len(weights),infCount)]
dicty = {}
for i, weight in enumerate(weights):
if not vertices or i in vertices:
dicty.update({i:weight})
return dicty
# returns a vert weight list
# {0:[0.1, 0.2, 0.3, 0.4], 1:[etc..]}
def setWeights(self,values=None,normalize=True):
vertices = values.keys() #gets all the verts that are going to be edited
oldWeights = self.getWeights(vertices) #gets vert weights for undo
oldValues = []
newValues = []
influences = self.getInfl_IDs().keys() # gets the influence indices
for vert in vertices:
oldValues += oldWeights[vert] # combine weights into a list
newValues += values[vert] # combines the new weights to a list
self.skinFn.setWeights(self.polygon.tracker.dag, self.vertexComp,
om.MIntArray(influences), om.MDoubleArray(newValues),
normalize=normalize, oldValues=om.MDoubleArray(oldValues))
在打印到双重检查类型时，这是输出：
<type 'OpenMaya.MDagPath'>
<type 'OpenMaya.MObject'>
<type 'OpenMaya.MIntArray'>
<type 'OpenMaya.MDoubleArray'>
<type 'bool'>
<type 'OpenMaya.MDoubleArray'>
来源材料：
发现了一个类似问题的帖子，但似乎没有帮助。也许其他人会注意到为什么他们的解决方案有效以及我缺少什么。
答案 0 :(得分：2)
我在maya.api.OpenMayaAnim setWeight函数中发现的是它不可撤销。你必须做一些额外的步骤才能做到这一点，以便它可以撤消，这是一个痛苦。因此，我创建了一些获取getWeight值的东西，并使用skinPercent命令来设置它们。
@property
def weights(self):
vertWeights = self.skinFn.getWeights(self.polygon.tracker.dag, self.vertexComp)
weights = list(vertWeights[-2])
infCount = vertWeights[-1]
weights = [weights[x:x + infCount] for x in range(0, len(weights), infCount)]
dicty = {}
for i, weight in enumerate(weights):
dicty.update({i: weight})
# returns {vert1:[weightValue0,weightValue1,weightValue2..],vert2:[etc..]}
# weight list index corresponds to influences from self.getInfl_IDs(), so it's easy to iterate weights using the index.
return dicty
@weights.setter
def weights(self, values):
#Will only set verts sent to it. Uses same data structure as get
influences = self.getInfl_IDs()
for vert, weights in values.iteritems():
tempy = []
for i, value in enumerate(weights):
tempy += [(influences[i],value)]
cmds.skinPercent(self.path, self.shapeNode.getVertName(vert), transformValue=tempy)
答案 1 :(得分：0)
这不是一个解决方案，而是一个解决方案。我发现，如果我从setWeight中取出oldValues，它会突然发挥作用。
def setWeights(self,values=None,normalize=True):
vertices = values.keys()
oldWeights = self.getWeights()
newWeights = dict(oldWeights)
for key, value in values.iteritems():
newWeights[key] = value
oldValues = []
newValues = []
influences = self.getInfl_IDs().keys()
intArray = om.MIntArray()
intArray.copy(influences)
for vert in oldWeights.keys():
oldValues += oldWeights[vert]
newValues += newWeights[vert]
oldValues = om.MDoubleArray(oldValues)
newValues = om.MDoubleArray(newValues)
self.skinFn.setWeights(self.polygon.tracker.dag, self.vertexComp, intArray, newValues, normalize=normalize)
所以如果有人知道为什么oldValues会导致它调用错误的方法，请告诉我。