code: public Transform scaleAboutPoint(final double scale, final double x, final double y)
      {
          translate(x, y);
  
          scale(scale, scale);
  
          translate(-x, -y);
  
          return this;
      }
docs: Concatenates this transform with a translation, a rotation and another translation transformation,
  resulting in an scaling with respect to the specified point (x,y).
  <p>
  Equivalent to:
  <pre>
  translate(x, y);
  scale(scale, scale);
  translate(-x, -y);
  </pre>
  @param scale
  @param x
  @param y