ecmascript:

// Functions for ProximitySensor

function position (value) {
  var x = Math.floor (value[0] * precision + 0.5) / precision;
  var y = Math.floor (value[1] * precision + 0.5) / precision;
  var z = Math.floor (value[2] * precision + 0.5) / precision;
  Browser.println ('position: ' + x + ' ' + y + ' ' + z);
}

function orientation (value) {
  var x = Math.floor (value[0] * precision + 0.5) / precision;
  var y = Math.floor (value[1] * precision + 0.5) / precision;
  var z = Math.floor (value[2] * precision + 0.5) / precision;
  var a = Math.floor (value[3] * precision + 0.5) / precision;
  Browser.println ('orientation: ' + x + ' ' + y + ' ' + z + ' ' + a);
}

// Functions for VisibilitySensor

function isVisible (value) {
  Browser.println ('The region is visible: ' + value);
}