2011

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26 
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Figure50.Directmanipulationpolylinetools
Youcanalsoactivatethegripbyclickingonit.Thenyoucancyclethroughtheavailablefunctionsby
pressingCTRL,orchoosingoneoftheoptionsfromtheright‐clickmenu. Iconsnexttothecursor
indicatetheactivefunction.
Sub‐selectionforpolylineshasbeenrefinedinAutoCAD2011.
Tosub‐selectoneormoresegmentsofa
polyline,holddownCTRLwhileleft‐clickingonthepolyline.
  
Figure51.Polylinesub‐objectselection
Gripbehaviorforsub‐selectedsegmentsisidenticaltothebehaviorwhentheentirepolylineisselected.
YoucannowusetheJOINcommandtoconnectlines,arcs,andpolylinesto3Dpolylines,aslongasthey
areallcontiguous(inotherwords,theyshareacommonendpoint). Youmustselect
themostcomplex
objectfirst(inthiscase,the3Dpolyline),andtheobjectstobejoineddonotneedtobecoplanar.
Splines
SplineshavebeenupdatedinAutoCAD2011toprovidemoreflexibilityandcontrol.Youcandefinea
splineusingfitpointsorcontrolvertices(CV).CVsplinesaremoreappropriateifyouwillbeusingthem
with3DNURBSsurfaces.
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Figure52.FitsplineandControlVerticesspline