如何使用python在maya的活动视图中显示/隐藏项目（？）？答案

【问题标题】：How to show/hide items(?) in active view on maya with python?如何使用python在maya的活动视图中显示/隐藏项目（？）？
【发布时间】：2023-04-01 10:22:01
【问题描述】：

现在我知道如何隐藏活动视口上的所有 nurbs 曲线了。但是，我怎样才能同时对视口上显示菜单上的所有项目（如相机、操纵器、网格......等）做同样的事情？

我认为我需要为此使用 for 循环，但我需要一些指导。谢谢。

import maya.cmds as cmds

actView = cmds.getPanel(wf=True)

if cmds.modelEditor(actView, q=True, nurbsCurves=True) == 1:
    cmds.modelEditor(actView, e=True, nurbsCurves=False)

【问题讨论】：

标签： python hide show maya

【解决方案1】：

这是一种隐藏一切的方法：

actView = cmds.getPanel(wf=True) # actView='modelPanel4'
# list the flag we use to hide, not that alo hide nearly everything
hide_attrs = ['alo', 'manipulators', 'grid', 'hud', 'hos', 'sel']
# value is used to make visible or to hide (0 is for hiding)
value = 0
# flags is used to create a dictionary that will be used in the command to do : manipulators = 0
flags = { i : value for i in hide_attrs }
# the double star unpack a python dictionnary the key = value, i.e in this case : alo = 0, hud = 0....
cmds.modelEditor(actView, e=1, **flags)

如果你想更具体，你可以为可见属性构建另一个字典

# merge dictionnaries
def merge_two_dicts(x, y):
    # In Python 3.5 or greater, : z = {**x, **y}
    # or w = {'foo': 'bar', 'baz': 'qux', **y}

    z = x.copy()  # start with x's keys and values
    z.update(y)  # modifies z with y's keys and values & returns None
    return z

actView = cmds.getPanel(wf=True) # actView='modelPanel4'
hide_attrs = ['alo', 'manipulators', 'grid', 'hud', 'hos']
vis_attrs = ['sel']
hide_flags = { i : 0 for i in hide_attrs }
vis_flags = { i : 1 for i in vis_attrs }
flags = merge_two_dicts(hide_flags, vis_flags)
cmds.modelEditor(actView, e=1, **flags)

但如果我是你，我会把它封装到一个 def 中：

def set_actviewVis(value, attrs=list):
    actView = cmds.getPanel(wf=True) # actView='modelPanel4'    
    flags = { i : value for i in attrs }
    cmds.modelEditor(actView, e=1, **flags)

hide_attrs = ['alo', 'manipulators', 'grid', 'hud', 'hos']
set_actviewVis(0, hide_attrs)
vis_attrs = ['sel']
set_actviewVis(1, vis_attrs)

【讨论】：