How to use

org.jfree.ui.FloatDimension

constructor

/**
 * Creates an object based on the description.
 *
 * @return The object.
 */
public Object createObject() {
  final Dimension2D dim = new FloatDimension();
  final float width = getFloatParameter("width");
  final float height = getFloatParameter("height");
  dim.setSize(width, height);
  return dim;
}