[Maya]OpenMayaでカーブのポイントを取得

api2.0(2016以降)

import maya.api.OpenMaya as om2

def main():
    sl = om2.MGlobal.getActiveSelectionList()
    dagPath = sl.getDagPath(0)
    try:
        dagPath.extendToShape()
    except:
        return
    if not dagPath.hasFn(om.MFn.kNurbsCurve):
        return
    crv = om.MFnNurbsCurve(dagPath)
    pnts = fn_crv.cvPositions()
    for pnt in pnts:
        print pnt
        
        
main()

api1.0

import maya.OpenMaya as om
util = om.MScriptUtil()

def main():
    sl = om.MSelectionList()
    om.MGlobal.getActiveSelectionList(sl)
    dagPath = om.MDagPath()
    sl.getDagPath(0, dagPath)
    try:
        dagPath.extendToShape()
    except: return
    if not dagPath.hasFn(om.MFn.kNurbsCurve):
        return
    crv = om.MFnNurbsCurve(dagPath)
    pnts = om.MPointArray()
    crv.getCVs(pnts)
    for i in range(pnts.length()):
        pnt = pnts[i]
        print pnt.x, pnt.y, pnt.z
main()