GEMPAK Manual | Programs | Parameters

     CNTR

     CNTR specifies the plot attributes for Cell Centroid movement 
     barbs (knots):
 
           color / size / width ; filter

     A value of 0 is used to turn off centroid plotting. 

     FILTER is a logical variable or real number which controls the
     filtering of data in order to eliminate plotting of overlapping
     data.