public LabelPointRenderer(){
  column=1;
  format=NumberFormat.getInstance();
  font=Font.decode(null);
  alignmentX=0.5;
  alignmentY=0.5;
}

public LabelPointRenderer ( ) { column = 1 ; format = NumberFormat . getInstance ( ) ; font = Font . decode ( null ) ; alignmentX = 0.5 ; alignmentY = 0.5 ; }
initializes a new renderer .
