在类外调用变量

Question

如何获取类内定义的intSliderGrp的值并将其用于所述类外的函数

我试图将我的主UI全部放在一个类中，这样我就可以在maya中调用它，但我需要在滑块上设置值来修改类UI之外的函数：

import maya.cmds as cmds

def setSubdivision(*args):
    obj = cmds.ls(sl = True)
    asubd = cmds.intSliderGrp(sliderSet, query = True , value = True)
    for i in obj:
        cmds.setAttr('%s.aiSubdivIterations' %i, int(asubd))
        
class subdivisionUI():
    
    windowName = "ArnoldSubdivisionWindow"

    def show(self):

        if cmds.window(self.windowName, query =  True, exists =  True, width = 150):
            cmds.deleteUI(self.windowName)

        cmds.window(self.windowName)
        
        mainColumn = cmds.columnLayout(adjustableColumn = True)
        
        cmds.text(l='Set subdivisions to selected objects', al = 'center')

        column2 = cmds.rowLayout(numberOfColumns = 2, adjustableColumn=2, columnAlign=(1, 'right'))
        sliderSet = cmds.intSliderGrp(l = "Subdivisions", s =1, min = 0, max = 20, field = True)
        b = cmds.button(l = 'Set')
        cmds.button(b, e = True , command = setSubdivision, width = 50 ) 

        

        cmds.showWindow()
        
        
subdivisionUI().show()

这是我第一次使用类，所以我仍在努力了解它们是如何工作的以及如何正确使用

Answer 1

目前，在Maya中创建UI时不使用类的优势。最大的优点是可以将所有内容封装在这个类中，而不需要任何外部函数或全局变量。如果您尝试这种方法，您的问题就会消失：

import maya.cmds as cmds

        
class subdivisionUI():
    
    windowName = "ArnoldSubdivisionWindow"
    
    def __init__(self):
        if cmds.window(self.windowName, query =  True, exists =  True, width = 150):
            cmds.deleteUI(self.windowName)

        self.window = cmds.window(self.windowName)
        mainColumn = cmds.columnLayout(adjustableColumn = True)
        cmds.text(l='Set subdivisions to selected objects', al = 'center')

        column2 = cmds.rowLayout(numberOfColumns = 2, adjustableColumn=2, columnAlign=(1, 'right'))
        self.sliderSet = cmds.intSliderGrp(l = "Subdivisions", s =1, min = 0, max = 20, field = True)
        b = cmds.button(l = 'Set')
        cmds.button(b, e = True , command = self.setSubdivision, width = 50 ) 
        
    def setSubdivision(self, *args):
        obj = cmds.ls(sl = True)
        asubd = cmds.intSliderGrp(self.sliderSet, query = True , value = True)
        for i in obj:
            cmds.setAttr('%s.aiSubdivIterations' %i, int(asubd))

    def show(self):
        cmds.showWindow(self.window)
        
        
subdivisionUI().show()