Hi, guys: I just guess some problem because I in the load of back home. When we executed the script:
imagePlaneName = "imagePlane1" The plane not attribute useFrameExtension until the maya executed other Mel script, it is maya internal. So you can't get the listConneuseFrame info until you stop the scrip or maya finished the Mel script! If it be the case, you can use the script to create the attribute, or use getAttr to judge the attribute is exists. I sorry the puzzle from my guess wrong! Sent from my iPhone > On 2013年10月2日, at 9:20, Mark Dietel <[email protected]> wrote: > > It turns out my approach was flawed. I wanted to get the expression so that > I could remove it and replace it. However, since it doesn't exist until the > termination of the script, I have just attached my own expression during > script run time. Maya never has a chance to connect it's own. > > Problem solved. (I suppose, there never really was a problem. > Problem...uninvented?) > >> On Tuesday, October 1, 2013 9:59:12 AM UTC-7, Mark Dietel wrote: >> Hey guys, >> This post isn't python specific, so forgive me if it's misplaced. >> >> I'm having some trouble interacting with an imagePlane after enabling the >> "useFrameExtension" attribute. Once this attribute is enabled, there should >> be an expression connected to the imagePlane node. I want to delete that >> expression in order to create my own key frames. The problem is that when I >> script these actions the expression doesn't get created until Maya regains >> control from the script. >> >> For example, if I run this script; >> >> imagePlaneName = "imagePlane1" # assuming this has already been created >> cmds.setAttr( "%s.useFrameExtension" % imagePlaneName, 1 ) >> connected_expressions = cmds.listConnections("%s.frameExtension" % >> imagePlaneName, source=True, destination=False) >> >> connected_expressions will be empty. >> >> I've tried sleeping the script and looping over the listConnections like this >> >> cmds.setAttr( "%s.useFrameExtension" % imagePlaneName, 1 ) >> >> while not connected_expressions: >> connected_expressions = >> cmds.listConneuseFrameExtensionctions("%s.frameExtension" % imagePlaneName, >> source=True, destination=False) >> >> time.sleep(1) >> >> >> ...but neither seems to allow Maya to create the expression. The only thing >> that seems to work is to stop the script entirely and give control back to >> Maya. Like this; >> >> cmds.setAttr( "%s.useFrameExtension" % imagePlaneName, 1 ) >> STOP THE SCRIPT >> connected_expressions = cmds.listConnections("%s.frameExtension" % >> imagePlaneName, source=True, destination=False) >> >> In this final case, the connected_expressions variable will contain a list >> of at least one expression. The one I need. >> >> How can I delay my script or force Maya to continue the expression creation >> so that I can act on the expression? >> > > -- > You received this message because you are subscribed to the Google Groups > "Python Programming for Autodesk Maya" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/python_inside_maya/7fd3979e-c534-4d1e-b005-26bea42c7163%40googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "Python Programming for Autodesk Maya" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/python_inside_maya/B0DCE543-8624-435E-A04D-96B826EF6A0C%40gmail.com. For more options, visit https://groups.google.com/groups/opt_out.
