def buildNode( cls, nodeName ):
'''
Builds a curve control.
@param nodeName: String. Name of the node.
'''
# Create the curve.
curveNode = CurveControlComponent( nodeName ).createCurveControl( cls( nodeName ).controlName, cls( nodeName ).curveType )
controlName = OpenMaya.MDagPath.getAPathTo( curveNode ).fullPathName()
# Set the control to the transform matrix.
applyStoredTransforms( nodeName, controlName )
# Get the saved properties and apply them to the curve.
cvList = NurbsCurveUtility.readCurveValues( nodeName )
cvPointArray = NurbsCurveUtility.buildCVPointArray( cvList )
NurbsCurveUtility.setCurveCvs( controlName, cvPointArray )
# Color.
GeneralUtility.setUserColor( controlName, userColor=cls( nodeName ).controlColor )
# Create the control spacer.
transReference = NodeUtility.getNodeAttrSource( nodeName, 'parentName' )
controlSpacer = GeneralUtility.createSpacer( None, inGroupName=cls( nodeName ).controlName, inTargetObject=transReference[0], inDoParent=False, inPrefix='sp' )
cmds.parent( controlName, controlSpacer, relative=True )
return curveNode
