When you call the command from script, it will return whatever you put in the setResult or appendToResult command. It doesn't return the MStatus returned in the doIt() method.
On Wed, Mar 10, 2010 at 5:34 PM, ranxerox <[email protected]> wrote: > > thanks a lot Chad, I had tried that initially and had received some > error message which led me to believe that I had been exploring an > incorrect route. So .. if the command returns an MStatus object how > do you actually get the result of the command from the calling > script ? > > thanks > > -Greg > > On Mar 10, 7:54 pm, Chad Vernon <[email protected]> wrote: > > And for a bunch of doubles, you'll need to return either an MDoubleArray > > with setResult or call appendToResult several times with each value. > > > > On Wed, Mar 10, 2010 at 4:52 PM, Chad Vernon <[email protected]> > wrote: > > > In MPxCommand, doIt() is supposed to return an MStatus. In order to > get > > > the actual command to return something, use the setResult() or > > > appendToResult() methods. > > > > > On Wed, Mar 10, 2010 at 3:44 PM, ranxerox <[email protected]> > wrote: > > > > >> hey all, I've been writing a command plugin which does come > > >> calculations based on it's input and returns a vector back to the > > >> script which was calling it. It's been a while since I've written a > > >> plugin and I've never written one in python so please excuse the > > >> simplicity of the question but I haven't found my answer in the > > >> documentation so as a last resort I'll post it here. > > > > >> this is the end of my "doIt" method for my class derived from > > >> OpenMayaMPx.MPxCommand, I am trying to return the vector 'vecDegrees' > > >> back to the python script which is calling this command: > > > > >> retval = OpenMaya.MScriptUtil() > > > > >> retval.createFromDouble(vecDegrees[0],vecDegrees[1],vecDegrees[2],0) > > >> retvalFltPtr = retval.asFloat4Ptr() > > >> return retvalFltPtr > > > > >> from gleaning the documentation I guessed that this was the correct > > >> way to do it, but I am still getting an error from the calling script > > >> which is trying to index the return value, it says 'NoneType' object > > >> is unsubscriptable, so I guess I'm still returning a NoneType > > >> object. > > > > >> is this the correct way to return a value from a scripted command > > >> plugin ? I tried various methods (such as appendToResult) but got > > >> various errors and the documentation is really not very helpful. Any > > >> help would be much appreciated for this seemingly simple task. > > > > >> thanks > > > > >> -Greg > > > > >> -- > > >>http://groups.google.com/group/python_inside_maya > > > > > > -- > http://groups.google.com/group/python_inside_maya > -- http://groups.google.com/group/python_inside_maya
