code: public Bbox union(Bbox one, Bbox two) {
  		org.geomajas.gwt.client.spatial.Bbox bbox1 = GeometryConverter.toGwt(one);
  		org.geomajas.gwt.client.spatial.Bbox bbox2 = GeometryConverter.toGwt(two);
  		return GeometryConverter.toDto(bbox1.union(bbox2));
  	}
docs: Calculate the union of two bounding boxes.
  
  @param one
  The first bounding box.
  @param two
  The second bounding box.
  @return The union of the two given bounding boxes.