UV shell information from API?

[tmr]

       Is there any way to get UV shell information from within the API?

I found a reference to an undocumented method MFnMesh::getUvShellsIds()
in the sample code, but that gives inconsistent, often incorrect results.  Does anyone have any experience using getUvShellsIds?

[uiron]

you can just simply code that one yourself. one day when i could not find an api for getting a shell from vertex index, i wrote that myself. it's in python, but it's not hard to understand what's going on. algorithm is simple - queue one vertex; then process the queue (untill all queue items are checked), for each vertex in the queue adding connected vertices to the same queue.

    def getShellByVert(mesh,vertID):
        meshFn = GeomUtils.getFnMesh(mesh)

        vertexIterator = om.MItMeshVertex(meshFn.object())
        vertQueue = [vertID]
        i = 0
        dummyPtr = om.MScriptUtil().asIntPtr()
        while i<len(vertQueue):

            vertexIterator.setIndex(vertQueue[i],dummyPtr)
            connectedVerts = om.MIntArray()
            vertexIterator.getConnectedVertices(connectedVerts)
            for v in range(0,connectedVerts.length()):
                if connectedVerts[v] not in vertQueue:
                    vertQueue.append(connectedVerts[v])

            i +=1

        return vertQueue

it should not be hard to do the same for UV shells.

[joojaa]

I think this function is actually deprecated. Wich would explain why its inconsitent.