如何使用Maya Python API查找所有上游DG节点? [英] How to find all upstream DG nodes with maya python api?

问题描述

我可以使用

hypershade -listUpstreamNodes

以获取它们，但是此命令在maya批处理模式下不可用. 我想我应该使用 MItDependencyGraph 吗?有人可以给我一个简短的例子吗?谢谢！

to get them, but this command is not available in maya batch mode. i guess i should use MItDependencyGraph ? can someone give me a short example ? thanks !

ps:我想在动画控件上找到所有动画曲线(它们可能在动画图层中).我可以使用的另一个地方是找到与给定网格关联的所有着色节点.我不想多次使用listConnections或connectionInfo并编写一个长函数来做到这一点.

ps: i want to find all anim curves on anim controls( they may be in anim layers). another place i can use this is find all shading nodes associated with a given mesh. i don't want to use listConnections or connectionInfo multiple times and write a long function to do it.

推荐答案

在香草玛雅蟒蛇中

 import maya.cmds as cmds
 cmds.ls(*cmds.listHistory (mynode), type = 'animCurve' )

应该做同样的事情.在这两种情况下，您还都必须寻找将在结果中显示的诸如驱动键之类的东西.

Should do the same thing. In both cases you'll also have to look for things like driven keys that will show up in the results.

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