Maya MEL - 在时间轴中突出显示特定范围

Question

我是写脚本的新手。在 Maya 中，我想在没有 shift+LMB 擦洗的情况下突出显示时间轴中的特定范围。我想输入 start/end 值并使脚本 select 该范围。这可能吗？我还没有找到任何解决方案。

提前致谢。

Answer 1

在尝试让它工作然后四处挖掘之后，不，这里有一些支持这个的链接：

http://ewertb.mayasound.com/mel/mel.027.php

你可以查询它但你不能设置它有点奇怪。尽管您应该能够使用 cmds.keyframe 和 cmds.scaleKey.

来模仿其行为

Answer 2

这是最大的 hacky 解决方法 - 但是在 Python 中。使用 Qt Mouse 按下、移动和释放事件来模拟鼠标在时间滑块小部件上的行为以获得它 select。我不会向初学者推荐它，但至少它有效。

在代码中，我临时更改了时间滑块范围以最大化屏幕 space 我想要单击的帧。

from maya import mel
from maya import OpenMayaUI as omui 

from shiboken2 import wrapInstance 
from PySide2 import QtCore, QtGui, QtWidgets


def select_time_slider_range(start, end):
    
    app = QtWidgets.QApplication.instance()
    
    widgetStr = mel.eval('$gPlayBackSlider=$gPlayBackSlider')
    ptr = omui.MQtUtil.findControl(widgetStr)
    slider = wrapInstance(long(ptr), QtWidgets.QWidget)
    
    slider_width = slider.size().width()
    slider_height = slider.size().height()
    
    # Store time slider settings
    min_time = cmds.playbackOptions(query=True, minTime=True)
    max_time = cmds.playbackOptions(query=True, maxTime=True)
    animation_start_time = cmds.playbackOptions(query=True, animationStartTime=True)
    animation_end_time = cmds.playbackOptions(query=True, animationEndTime=True)
    t = cmds.currentTime(query=True)
    
    # Set the time slider to the range we want so we have
    # perfect precision to click at the start and end of the
    # time slider.
    cmds.playbackOptions(minTime=start)
    cmds.playbackOptions(maxTime=end)
    
    a_pos = QtCore.QPoint(0, slider_height / 2.0)         
    b_pos = QtCore.QPoint(slider_width, slider_height / 2.0)
    
    # Trigger some mouse events on the Time Control
    # Somehow we need to have some move events around
    # it so the UI correctly understands it stopped
    # clicking, etc.
    event = QtGui.QMouseEvent(QtCore.QEvent.MouseMove, 
                              a_pos, 
                              QtCore.Qt.MouseButton.LeftButton, 
                              QtCore.Qt.MouseButton.LeftButton, 
                              QtCore.Qt.NoModifier)
    app.sendEvent(slider, event)
    
    event = QtGui.QMouseEvent(QtCore.QEvent.MouseButtonPress, 
                              a_pos, 
                              QtCore.Qt.MouseButton.LeftButton, 
                              QtCore.Qt.MouseButton.LeftButton, 
                              QtCore.Qt.ShiftModifier)
    app.sendEvent(slider, event)
   
    event = QtGui.QMouseEvent(QtCore.QEvent.MouseMove, 
                              b_pos, 
                              QtCore.Qt.MouseButton.LeftButton, 
                              QtCore.Qt.MouseButton.LeftButton, 
                              QtCore.Qt.ShiftModifier)
    app.sendEvent(slider, event)

    event = QtGui.QMouseEvent(QtCore.QEvent.MouseButtonRelease, 
                              b_pos, 
                              QtCore.Qt.MouseButton.LeftButton, 
                              QtCore.Qt.MouseButton.LeftButton, 
                              QtCore.Qt.ShiftModifier)
    app.sendEvent(slider, event)
    
    event = QtGui.QMouseEvent(QtCore.QEvent.MouseMove, 
                              b_pos, 
                              QtCore.Qt.MouseButton.LeftButton, 
                              QtCore.Qt.MouseButton.LeftButton, 
                              QtCore.Qt.NoModifier)
    app.sendEvent(slider, event)
    app.processEvents()
    
    # Reset time slider settings
    cmds.playbackOptions(minTime=min_time)
    cmds.playbackOptions(maxTime=max_time)
    cmds.playbackOptions(animationStartTime=animation_start_time)
    cmds.playbackOptions(animationEndTime=animation_end_time)
    cmds.currentTime(t)

select_time_slider_range(-200, 500000)

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