void drawText(Canvas canvas, String name, double x, double y,
      double angleRotationInRadians) {
    canvas.save();
    canvas.translate(x, y);
    canvas.rotate(angleRotationInRadians);
    TextSpan span =
        new TextSpan(style: new TextStyle(color: Color(0x0b000000)), text: name);
    TextPainter tp = new TextPainter(
        text: span,
        textAlign: TextAlign.left,
        textDirection: TextDirection.ltr);
    tp.layout();
    tp.paint(canvas, new Offset(0.0, 0.0));
    canvas.restore();
  }