DEF SCRIPT Script {
          directOutput TRUE
          field SFFloat  width     IS  width
          field SFFloat  height    IS  height
          field SFNode   transform USE TRANSFORM
          url "javascript:
              function initialize() {
                  transform.translation = new SFVec3f(width/2,height/2,0);
                  transform.scale       = new SFVec3f(width,height,width);
              }
          "
      }
  }