code: static boolean multiPointEqualsPoint_(MultiPoint multipoint_a,
  			Point point_b, double tolerance, ProgressTracker progress_tracker) {
  		Envelope2D env_a = new Envelope2D(), env_b = new Envelope2D();
  		multipoint_a.queryEnvelope2D(env_a);
  		point_b.queryEnvelope2D(env_b);
  		return envelopeEqualsEnvelope_(env_a, env_b, tolerance,
  				progress_tracker);
  	}
docs: Returns true if multipoint_a equals point_b.