code: public void setScale(float scale) {
  		this.scale = scale;
  		linePaint.setStrokeWidth(scale * lineStrokeWidth);
  		polygonPaint.setStrokeWidth(scale * polygonStrokeWidth);
  		featurePaintCache.clear();
  	}
docs: Set the scale
  
  @param scale
  scale factor
  @since 3.2.0