code: public void applyScale( SceneStructureMetric structure ,
  							SceneObservations observations ) {
  
  		if( structure.homogenous ) {
  			applyScaleToPointsHomogenous(structure);
  		} else {
  			computePointStatistics(structure.points);
  			applyScaleToPoints3D(structure);
  			applyScaleTranslation3D(structure);
  		}
  		// NOTE: Observations can't be centered/scaled here because that changes the camera model.
  		//       That requires knowledge this class can't have access to and must be done externally
  	}
docs: Applies the scale transform to the input scene structure. Metric.
  @param structure 3D scene
  @param observations Observations of the scene