Ahah! Thanks Chad! On Oct 5, 2:38 pm, Chad Vernon <[email protected]> wrote: > You'll get an exception if the filter doesn't turn up anything. Since > they're aren't any smooth nodes in the scene, the MItDependencyGraph > constructor throws an exception. It'll only work if there are actual nodes > that match your filter. > > Chad > > On Tue, Oct 5, 2010 at 2:31 PM, JP <[email protected]> wrote: > > Hey all, > > > I'm pretty new to working with the API, and I'm having some trouble > > getting an MItDependencyGraph node. I keep getting the good old > > "(kFailure): Unexpected Internal Failure", and I've been scratching my > > head for quite a while over it. Was hoping someone here can publicly > > point and laugh at whatever I'm doing wrong here. > > > This is going to be part of a function that traverses upstream from > > all meshes under nodes passed to the function and looks for polySmooth > > nodes > > > WARNING - this will create a new empty scene! > > > Thanks in advance for the help!! > > > import maya.OpenMaya as OM > > import maya.cmds as MC > > > MC.file(new=True, force=True) > > group = MC.group(em=True, name= "grp") > > for i in range(3): > > sphere = MC.polySphere(name='sphere%i' % i) > > MC.parent(sphere, group) > > > #get an MItSelectionList object with all meshes parented under "grp" > > funcArgs = ["grp"] > > MC.select(MC.listRelatives(funcArgs, pa=1, ad=1, type='mesh')) > > sel = OM.MSelectionList() > > OM.MGlobal.getActiveSelectionList(sel) > > selIt = OM.MItSelectionList(sel, OM.MFn.kMesh) > > > #would normally start itering here, but for testing just grab the > > first item in the selection list > > meshNode = OM.MObject() > > selIt.getDependNode(meshNode) > > > typeFilter = OM.MFn.kPolySmooth > > direction = OM.MItDependencyGraph.kUpstream > > > dgIt = OM.MItDependencyGraph (meshNode, typeFilter, direction) > > > -- > >http://groups.google.com/group/python_inside_maya > >
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