code: public void connectPointToView( int pointIndex , int viewIndex ) {
  		SceneStructureMetric.Point p = points[pointIndex];
  
  		for (int i = 0; i < p.views.size; i++) {
  			if( p.views.data[i] == viewIndex )
  				throw new IllegalArgumentException("Tried to add the same view twice. viewIndex="+viewIndex);
  		}
  		p.views.add(viewIndex);
  	}
docs: Specifies that the point was observed in this view.
  @param pointIndex index of point
  @param viewIndex index of view