ComputeWidePolyPolylinePoints

function ComputeWidePolyPolylinePoints(

  const linepts: array of TPointF;

  width: single;

  pencolor: TBGRAPixel;

  linecap: TPenEndCap;

  joinstyle: TPenJoinStyle;

  const penstyle: TBGRAPenStyle;

  options: TBGRAPolyLineOptions;

  miterLimit: single = 2;

  arrow: TBGRACustomArrow = Nil

):ArrayOfTPointF;