Create a MItMeshVertex using a set of vertex

[illunara]

Hi everybody 

I want to query the border vertexs of an mesh, then create another MItMeshVertex from it.

Then i looked into maya's doc and found this constructor might does what i need :

MItMeshVertex (const MDagPath &polyObject, MObject &component=MObject::kNullObj, MStatus *ReturnStatus=NULL) 

But i not sure about the MObject &component param, can someone give me a hint please? Thanks

[Tuan Nguyen]

Some how i figure it out, i will post the code snippet here if anyone got interested

Name of MFnSingleIndexedComponent class confused me

import maya.OpenMaya as om

#Get active list

selList= om.MSelectionList()
om.MGlobal.getActiveSelectionList(selList)

dagpath = om.MDagPath()
sellist.getDagPath(0, dagpath)

#Get mesh vertex list
allVertexIt = om.MItMeshVertex(dagpath)
vtxComponent = om.MFnSingleIndexedComponent()
vtxComponent.create(om.MFn.kMeshVertComponent)


while not allVertexIt.isDone():
    if allVertexIt.onBoundary():
        vtxComponent.addElement(allVertexIt.index())
    allVertexIt.next()

#Get mesh border vertex list
bounderVtxIt = om.MItMeshVertex(dagpath, vtxComponent.object())
while not bounderVtxIt.isDone():
    print bounderVtxIt.index()
    bounderVtxIt.next()

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