Maya Python - 使用 UI 中的数据

我正在开发一个脚本程序，并且在用户界面方面遇到了一些困难。我制作了几个用户界面，所有这些用户界面似乎都可以单独工作，但我不知道如何将用户界面中输入的数据使用到另一个函数。我正在尝试获取枪类型（由用户选择）Bullet_Spray_Generator) 来影响随后调用哪个 UI。每种枪类型都需要一组不同的滑块值，因此我为每种枪类型制作了不同的 UI。我想我需要将从 BSG 中选择的数据传递到if函数以便调用正确的（第二个）UI，但运行它总是跳转到else函数并关闭窗口。到目前为止，这是我的代码：

import maya.cmds as cmds
from functools import partial


if (cmds.window("Bullet_Spray_Generator", exists = True)): 
    cmds.deleteUI("Bullet_Spray_Generator")
if (cmds.window("BSG2", exists = True)): 
    cmds.deleteUI("BSG2")

cmds.select(all=True)
cmds.delete()



def goShoot(numOfShots, distToTarget, *pArgs): 
    print "Begin"
    cmds.deleteUI("BSG2")
    createWall()

def cancelShoot(*pArgs):
    print "cancel"
    cmds.deleteUI("Bullet_Spray_Generator")


def createWall():
    cmds.select(all=True)
    cmds.delete()
    wall = cmds.polyCube(h=10, w=15, d=1, name='wall')
    cmds.move(0,5,0, 'wall')


def createGunUI(gunType, *pArgs):
    if (GunSelectCtrl == 'Pistol'):
        createPistolUI()
    elif (GunSelectCtrl == 'Shotgun'):
        createShotgunUI()
    elif (GunSelectCtrl == 'SMG'):
        createSMGUI()
    elif (GunSelectCtrl == 'Sniper Rifle'):
        createSniperUI()
    elif (GunSelectCtrl == 'RPG'):
        createRPGUI()
    else:
        print "Something went wrong"
        cancelShoot()



def createPistolUI():
    cmds.window("Pistol")
    cmds.columnLayout(adjustableColumn=True)

    cmds.deleteUI("Bullet_Spray_Generator")

    NumBulletsCtrl = cmds.intSliderGrp(label='Number of Shots',
    minValue=1, maxValue=9, value=4, field=True)

    DistCtrl = cmds.intSliderGrp(label='Distance to Target (metres)', 
    minValue=1, maxValue=50, value=25, field=True)

    cmds.button(label = "Fire", command = lambda *args: goShoot(cmds.intSliderGrp(NumBulletsCtrl, 
    query=True, value=True), cmds.intSliderGrp(DistCtrl, query=True, value=True), ))

    cmds.button(label = "Cancel", command = cancelShoot)

    cmds.showWindow("Pistol")

def createShotgunUI():
    cmds.window("Shotgun")
    cmds.columnLayout(adjustableColumn=True)

    cmds.deleteUI("Bullet_Spray_Generator")

    NumBulletsCtrl = cmds.intSliderGrp(label='Number of Shots',
    minValue=1, maxValue=4, value=2, field=True)

    DistCtrl = cmds.intSliderGrp(label='Distance to Target (metres)', 
    minValue=1, maxValue=50, value=25, field=True)

    cmds.button(label = "Fire", command = lambda *args: goShoot(cmds.intSliderGrp(NumBulletsCtrl, 
    query=True, value=True), cmds.intSliderGrp(DistCtrl, query=True, value=True), ))

    cmds.button(label = "Cancel", command = cancelShoot)

    cmds.showWindow("Shotgun")

def createSMGUI():
    cmds.window("SMG")
    cmds.columnLayout(adjustableColumn=True)

    cmds.deleteUI("Bullet_Spray_Generator")

    NumBulletsCtrl = cmds.intSliderGrp(label='Number of Shots',
    minValue=1, maxValue=20, value=4, field=True)

    DistCtrl = cmds.intSliderGrp(label='Distance to Target (metres)', 
    minValue=1, maxValue=50, value=25, field=True)

    cmds.button(label = "Fire", command = lambda *args: goShoot(cmds.intSliderGrp(NumBulletsCtrl, 
    query=True, value=True), cmds.intSliderGrp(DistCtrl, query=True, value=True), ))

    cmds.button(label = "Cancel", command = cancelShoot)

    cmds.showWindow("SMG")

def createSniperUI():
    cmds.window("Sniper")
    cmds.columnLayout(adjustableColumn=True)

    cmds.deleteUI("Bullet_Spray_Generator")

    NumBulletsCtrl = cmds.intSliderGrp(label='Number of Shots',
    minValue=1, maxValue=2, value=2, field=True)

    DistCtrl = cmds.intSliderGrp(label='Distance to Target (metres)', 
    minValue=1, maxValue=50, value=25, field=True)

    cmds.button(label = "Fire", command = lambda *args: goShoot(cmds.intSliderGrp(NumBulletsCtrl, 
    query=True, value=True), cmds.intSliderGrp(DistCtrl, query=True, value=True), ))

    cmds.button(label = "Cancel", command = cancelShoot)

    cmds.showWindow("Sniper")

def createRPGUI():
    cmds.window("RPG")
    cmds.columnLayout(adjustableColumn=True)

    cmds.deleteUI("Bullet_Spray_Generator")

    NumBulletsCtrl = cmds.intSliderGrp(label='Number of Shots',
    minValue=1, maxValue=1, value=1, field=True)

    DistCtrl = cmds.intSliderGrp(label='Distance to Target (metres)', 
    minValue=1, maxValue=50, value=25, field=True)

    cmds.button(label = "Fire", command = lambda *args: goShoot(cmds.intSliderGrp(NumBulletsCtrl, 
    query=True, value=True), cmds.intSliderGrp(DistCtrl, query=True, value=True), ))

    cmds.button(label = "Cancel", command = cancelShoot)

    cmds.showWindow("RPG")


def printNewMenuItem(item):
    print item
    return item


def createUI(): 
    cmds.window("Bullet_Spray_Generator")
    cmds.columnLayout(adjustableColumn=True)

    GunSelectCtrl = cmds.optionMenu(label='Gun', changeCommand=printNewMenuItem)
    cmds.menuItem(label='Pistol')
    cmds.menuItem(label='Shotgun')
    cmds.menuItem(label='SMG')
    cmds.menuItem(label='Sniper Rifle')
    cmds.menuItem(label='RPG')

    cmds.button(label = "Continue", command = partial(createGunUI, GunSelectCtrl))

    cmds.button(label = "Cancel", command = cancelShoot)

    cmds.showWindow("Bullet_Spray_Generator")

createUI()

任何帮助将不胜感激，非常感谢。

在 Maya 的 GUI 中传递复杂信息的最简单方法是将整个 UI 包装在 python 类中。该类可以“记住”您的所有字段、滑块等，以便您可以轻松地从一个或多个 GUI 项目收集信息并对其进行操作，而无需太多额外的工作。

class PistoUI(object):

    def __init__(self):
        self.window =  cmds.window("Pistol")
        cmds.columnLayout(adjustableColumn=True)
        self.bullet_count = cmds.intSliderGrp(label='Number of Shots', minValue=1, maxValue=9, value=4, field=True)
        self.distance = cmds.intSliderGrp(label='Distance to Target (metres)',  minValue=1, maxValue=50, value=25, field=True)
        cmds.button(label = "Fire", command = self.fire)
        cmds.button(label = "Cancel", command = self.cancel)
        cmds.showWindow(self.window)

    def fire(self, _ignore):
        bullets  =  cmds.intSliderGrp(self.bullet_count, q=True, v=True)
        distance = cmds.intSliderGrp(self.distance, q=True, v=True).
        goShoot(bullets, distance)

    def cancel(self, _ignore):
        cmds.deleteUI(self.window)

正如您在上面看到的，fire函数从活动窗口获取正确的字段并收集它们的值以传递给 goShoot 函数，而无需在布局步骤中进行任何额外工作以将值直接传递给函数。这比将所有部分都暴露在外要简单得多，也更优雅。它也更加独立 - 您可以在该方案中并排创建多个窗口，而不必担心按名称创建和删除它们。

更好的是，这些类非常适合区分逻辑差异和数据差异，因此您可以轻松重用重复代码：

class WeaponUI(object):
    LABEL = 'weapon_name'  #default name
    SHOTS = (1, 9, 4)   # default shots
    RANGE = (1, 50, 25)  # default range

    def __init__(self):
        self.window =  cmds.window(title = self.LABEL)
        cmds.columnLayout(adjustableColumn=True)
        self.bullet_count = cmds.intSliderGrp(label='Number of Shots', minValue=self.SHOTS[0],
                                                    maxValue=self.SHOTS[1],
                                                    value=self.SHOTS[2], field=True)
        self.distance = cmds.intSliderGrp(label='Distance to Target (metres)',  
                                                    minValue=self.RANGE[0], 
                                                    maxValue=self.RANGE[1], 
                                                    value=self.RANGE[2], field=True)
        cmds.button(label = "Fire", command = self.fire)
        cmds.button(label = "Cancel", command = self.cancel)
        cmds.showWindow(self.window)


    def fire(self, _ignore):
        bullets  =  cmds.intSliderGrp(self.bullet_count, q=True, v=True)
        distance = cmds.intSliderGrp(self.distance, q=True, v=True).
        print "firing", self.LABEL
        goShoot(bullets, target)

    def cancel(self, _ignore):
        cmds.deleteUI(self.window)

class PistolUI(WeaponUI):
    LABEL = 'pistol'  
    SHOTS = (1, 9, 4)   
    RANGE = (1, 50, 25) 

class ShotgunUI(WeaponUI):
    LABEL = 'shotgun'  
    SHOTS = (1, 4, 2)  
    RANGE = (1, 50, 25) 

class SniperUI(WeaponUI):
    LABEL = 'sniper'  
    SHOTS = (1, 4, 2)  
    RANGE = (1, 50, 25) 

... 等等

有关 Maya GUI 连接的更多信息here http://techartsurvival.blogspot.com/2014/04/maya-callbacks-cheat-sheet.html and here http://techartsurvival.blogspot.com/2014/02/rescuing-maya-gui-from-itself.html