如何在计算中使用滑块值? [英] How to use a slider value in calculations?

问题描述

我有一段代码会产生噪音.噪声在0.0到1.0范围内产生.只要我设置一个定义的数字，代码就可以工作.如果我允许用​​户使用滑块选择该数字的最大范围，它将停止工作.

我有一个滑块，该滑块替换了亮度计算中的1.0值.一旦我用滑块生成的名为noiseAttribute的值替换Brightness中的1.0值，代码就会中断.它没有错误，并且在技术上可以运行，只是将对象变成黑色，而不是锁定颜色值.

import maya.cmds as cmds
import random
import functools

colorList = cmds.ls('colorSet*')

def createUI( pWindowTitle, pNoiseVerts):

    windowID = 'myWindowID'

    if cmds.window( windowID, exists=True ):
        cmds.deleteUI(windowID )

    cmds.window( windowID, title=pWindowTitle, s=False, rtf=True )
    cmds.rowColumnLayout( numberOfColumns=1, columnWidth=[(1,200)])

    cmds.text(label= 'Max Value Lock')
    noiseAttribute = cmds.floatSliderGrp( min=0.0, max=1.0, value=1, field=True)

    cmds.button( label='Noise', command=functools.partial (addNoise) )
    def cancelCallback( *pArgs ):
        if cmds.window( windowID, exists=True ):
            cmds.deleteUI( windowID)
    cmds.button( label='Cancel', command=cancelCallback )
    cmds.showWindow()


def pNoiseVerts(object, noiseAttribute):
    verts = range(cmds.polyEvaluate(object, vertex=True))
    random.shuffle(verts)

    for vertex in verts:
        cmds.select(object + '.vtx[' + str(vertex) + ']')

        brightness = random.uniform(0.0, noiseAttribute)

        cmds.polyColorPerVertex(rgb=(brightness, brightness, brightness))
        cmds.setAttr(object + '.displayColors', True)

def addNoise(noiseAttribute, *args):
    if len(colorList) > 0:
        cmds.delete(colorList)

    objects = cmds.ls( sl=True, long=True)

    if len(objects) > 0:
        setList = cmds.ls('colorSet*')
        result = cmds.polyColorSet ( create=True, colorSet='colorSet#')
        result = cmds.polyColorPerVertex ( rgb=[0.5,0.5,0.5])  
        result = cmds.polyColorSet ( create=True, colorSet='colorSet#')

        for object in objects:
            pNoiseVerts(object, noiseAttribute)
    else:
        cmds.inViewMessage (amg='Message: <hl>Please select an object first</hl>.', pos='midCenter', fade=True )


createUI( 'Config', pNoiseVerts)

如前所述，对象变为黑色，而不是锁定其最大颜色值.

解决方案

您不要通过functools传递任何参数 这是我对同一主题的回答之一:如何打印值Maya python中的intField的

Maya Python-使用来自UI的数据

您可以进入我的提问历史，我对functools回答了很多

import maya.cmds as cmds
import random
import functools

colorList = cmds.ls('colorSet*')

def createUI(pWindowTitle):

    windowID = 'myWindowID'

    if cmds.window( windowID, exists=True ):
        cmds.deleteUI(windowID )

    cmds.window( windowID, title=pWindowTitle, s=False, rtf=True )
    cmds.rowColumnLayout( numberOfColumns=1, columnWidth=[(1,200)])

    cmds.text(label= 'Max Value Lock')
    noiseAttribute = cmds.floatSliderGrp( min=0.0, max=1.0, value=1, field=True)

    cmds.button( label='Noise', command=functools.partial(ui_addNoise, noiseAttribute) )
    def cancelCallback( *pArgs ):
        if cmds.window( windowID, exists=True ):
            cmds.deleteUI( windowID)
    cmds.button( label='Cancel', command=cancelCallback )
    cmds.showWindow()

def ui_addNoise(noiseSlider, *args):
    value = cmds.floatSliderGrp(noiseSlider, q=True, value=True)
    addNoise(value)


def pNoiseVerts(object, value):
    verts = range(cmds.polyEvaluate(object, vertex=True))
    random.shuffle(verts)

    for id in verts:
        # you should never select things in maya, pass it as variable : 
        vtx = '{}.vtx[{}]'.format(object, id)

        brightness = random.uniform(0.0, value)

        cmds.polyColorPerVertex(vtx, rgb=(brightness, brightness, brightness))
        cmds.setAttr(object + '.displayColors', True)


def addNoise(value):
    if len(colorList) > 0:
        cmds.delete(colorList)

    objects = cmds.ls( sl=True, long=True)

    if len(objects) > 0:
        setList = cmds.ls('colorSet*')
        result = cmds.polyColorSet ( create=True, colorSet='colorSet#')
        result = cmds.polyColorPerVertex ( rgb=[0.5,0.5,0.5])  
        result = cmds.polyColorSet ( create=True, colorSet='colorSet#')

        for object in objects:
            pNoiseVerts(object, value)
    else:
        cmds.inViewMessage (amg='Message: <hl>Please select an object first</hl>.', pos='midCenter', fade=True )


createUI( 'Config')

I have a piece of code which generates noise. The noise is generated inside a 0.0 to 1.0 range. As long as I set a defined number the code works. If I were to allow users to select maximum range for the number with a slider it stops working.

I have a slider which replaces the value of 1.0 inside the brightness calculation. As soon as I replace 1.0 value inside Brightness with a slider generated value called noiseAttribute the code breaks. It gives no error and technically runs but just makes the object black instead of locking the color value.

import maya.cmds as cmds
import random
import functools

colorList = cmds.ls('colorSet*')

def createUI( pWindowTitle, pNoiseVerts):

    windowID = 'myWindowID'

    if cmds.window( windowID, exists=True ):
        cmds.deleteUI(windowID )

    cmds.window( windowID, title=pWindowTitle, s=False, rtf=True )
    cmds.rowColumnLayout( numberOfColumns=1, columnWidth=[(1,200)])

    cmds.text(label= 'Max Value Lock')
    noiseAttribute = cmds.floatSliderGrp( min=0.0, max=1.0, value=1, field=True)

    cmds.button( label='Noise', command=functools.partial (addNoise) )
    def cancelCallback( *pArgs ):
        if cmds.window( windowID, exists=True ):
            cmds.deleteUI( windowID)
    cmds.button( label='Cancel', command=cancelCallback )
    cmds.showWindow()


def pNoiseVerts(object, noiseAttribute):
    verts = range(cmds.polyEvaluate(object, vertex=True))
    random.shuffle(verts)

    for vertex in verts:
        cmds.select(object + '.vtx[' + str(vertex) + ']')

        brightness = random.uniform(0.0, noiseAttribute)

        cmds.polyColorPerVertex(rgb=(brightness, brightness, brightness))
        cmds.setAttr(object + '.displayColors', True)

def addNoise(noiseAttribute, *args):
    if len(colorList) > 0:
        cmds.delete(colorList)

    objects = cmds.ls( sl=True, long=True)

    if len(objects) > 0:
        setList = cmds.ls('colorSet*')
        result = cmds.polyColorSet ( create=True, colorSet='colorSet#')
        result = cmds.polyColorPerVertex ( rgb=[0.5,0.5,0.5])  
        result = cmds.polyColorSet ( create=True, colorSet='colorSet#')

        for object in objects:
            pNoiseVerts(object, noiseAttribute)
    else:
        cmds.inViewMessage (amg='Message: <hl>Please select an object first</hl>.', pos='midCenter', fade=True )


createUI( 'Config', pNoiseVerts)

As mentioned before the object turns black instead of having its max color value locked.

解决方案

You dont pass any arguments with your functools Here is one of my answer on the same topic : Need Help Making Buttons to perform for loops when you input a number

How to print the value of intField in Maya python

Maya Python - Using data from UI

You can go in my history of questions, I answered a lot about functools

import maya.cmds as cmds
import random
import functools

colorList = cmds.ls('colorSet*')

def createUI(pWindowTitle):

    windowID = 'myWindowID'

    if cmds.window( windowID, exists=True ):
        cmds.deleteUI(windowID )

    cmds.window( windowID, title=pWindowTitle, s=False, rtf=True )
    cmds.rowColumnLayout( numberOfColumns=1, columnWidth=[(1,200)])

    cmds.text(label= 'Max Value Lock')
    noiseAttribute = cmds.floatSliderGrp( min=0.0, max=1.0, value=1, field=True)

    cmds.button( label='Noise', command=functools.partial(ui_addNoise, noiseAttribute) )
    def cancelCallback( *pArgs ):
        if cmds.window( windowID, exists=True ):
            cmds.deleteUI( windowID)
    cmds.button( label='Cancel', command=cancelCallback )
    cmds.showWindow()

def ui_addNoise(noiseSlider, *args):
    value = cmds.floatSliderGrp(noiseSlider, q=True, value=True)
    addNoise(value)


def pNoiseVerts(object, value):
    verts = range(cmds.polyEvaluate(object, vertex=True))
    random.shuffle(verts)

    for id in verts:
        # you should never select things in maya, pass it as variable : 
        vtx = '{}.vtx[{}]'.format(object, id)

        brightness = random.uniform(0.0, value)

        cmds.polyColorPerVertex(vtx, rgb=(brightness, brightness, brightness))
        cmds.setAttr(object + '.displayColors', True)


def addNoise(value):
    if len(colorList) > 0:
        cmds.delete(colorList)

    objects = cmds.ls( sl=True, long=True)

    if len(objects) > 0:
        setList = cmds.ls('colorSet*')
        result = cmds.polyColorSet ( create=True, colorSet='colorSet#')
        result = cmds.polyColorPerVertex ( rgb=[0.5,0.5,0.5])  
        result = cmds.polyColorSet ( create=True, colorSet='colorSet#')

        for object in objects:
            pNoiseVerts(object, value)
    else:
        cmds.inViewMessage (amg='Message: <hl>Please select an object first</hl>.', pos='midCenter', fade=True )


createUI( 'Config')

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