angle= linspace( -PI,PI,40 )
rad= linspace( 1, 5, 20 )
dist= copy(ripples( 40, 20 ))
dist[0:3,10:]= -1e31

#plotx( angle, rad, dist )
result= link(  angle, rad, dist )
result.putProperty( QDataSet.RENDER_TYPE, 'pitchAngleDistribution' )
#plotx( ds, renderType='pitchAngleDistribution' )