如何定期执行Maya MEL过程 [英] How to execute a Maya MEL procedure at regular intervals

问题描述

我希望每x秒执行一次Maya MEL程序.有什么办法吗?

解决方案

mel设置为

scriptJob -e "idle" "yourScriptHere()";

但是，很难从梅尔那里获得时间(以秒为单位)-system("time/t")将使您得到的时间达到分钟，但没有达到Windows上的秒.在Unix系统中("date + \"％H:％M:％S \")可以使您花费数小时，数分钟和数秒.

这里的scriptJob的主要缺点是，当用户或脚本运行时，不会处理空闲事件-如果GUI或脚本执行了很长时间，则在此期间不会触发任何事件. /p>

您也可以使用Python在线程中执行此操作:

import threading
import time
import maya.utils as utils

def example(interval, ):
    global run_timer = True
    def your_function_goes_here():
        print "hello"

    while run_timer: 
        time.sleep(interval)
        utils.executeDeferred(your_function_goes_here)
        # always use executeDeferred or evalDeferredInMainThreadWithResult if you're running a thread in Maya!

t = threading.Thread(None, target = example, args = (1,) )
t.start()

线程更强大，更灵活-麻烦很多.它们还受到与scriptJob空闲事件相同的限制；如果玛雅人很忙，他们将不会开火.

I would like one of my Maya MEL procedures to be executed every x seconds. Is there any way to do that ?

解决方案

The mel setup would be

scriptJob -e "idle" "yourScriptHere()";

However it's hard to get the time in seconds from Mel - system("time /t") will get you time to the minute but not to the second on windows. In Unix system("date +\"%H:%M:%S\"") would get you hours, minutes and seconds.

The main drawback to scriptJob here is that idle events won't be processed when the user or a script is operating - if either the GUI or a script does something long you won't get any events fired during that period.

You can do this in Python with threads as well:

import threading
import time
import maya.utils as utils

def example(interval, ):
    global run_timer = True
    def your_function_goes_here():
        print "hello"

    while run_timer: 
        time.sleep(interval)
        utils.executeDeferred(your_function_goes_here)
        # always use executeDeferred or evalDeferredInMainThreadWithResult if you're running a thread in Maya!

t = threading.Thread(None, target = example, args = (1,) )
t.start()

Threads are much more powerful and flexible - and a big pain the the butt. They also suffer from the same limitation of as the scriptJob idle event; if Maya's busy they won't fire.

这篇关于如何定期执行Maya MEL过程的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！