public void rectValuesToPixel(List<RectF> rects){
  Matrix m=getValueToPixelMatrix();
  for (int i=0; i < rects.size(); i++)   m.mapRect(rects.get(i));
}

public void rectValuesToPixel ( List < RectF > rects ) { Matrix m = getValueToPixelMatrix ( ) ; for ( int i = 0 ; i < rects . size ( ) ; i ++ ) m . mapRect ( rects . get ( i ) ) ; }
transforms multiple rects with all matrices
