load( 'vap+das2server:http://www-pw.physics.uiowa.edu/das/das2Server?dataset=das2_1/cassini/cassiniLrfc&start_time=2008-12-17T00:00:00.000Z&end_time=2008-12-18T00:00:00.000Z&-lfdr+BxByBz+-mfdr+BxByBz+-mfr+13BxBz+-n+hfr_snd+-n+lp_rswp+-n+bad_data+-n+dpf_zero+-n+mfdr_mfr2+-n+mfr3_hfra+-n+hf1_hfrc+-a+-bgday' )
dom.plots[0].yaxis.log=True

from org.das2.components import DataPointRecorder
dpr= DataPointRecorder()

addTab( 'digitizer', dpr )

## add the box selector #########################
dom= getDocumentModel()
plot= dom.plots[0].controller.dasPlot
from org.das2.event import BoxSelectorMouseModule

def boxSelected(event):
    x= event.getX()
    y= event.getY()
    dpr.addDataPoint( x, y, None )

mm= plot.dasMouseInputAdapter.getModuleByLabel("Crosshair Digitizer")
mm.dataPointSelected= boxSelected

plot.dasMouseInputAdapter.primaryModule= mm

import javax
javax.swing.JOptionPane.showMessageDialog(None,'the crosshair are recorded on the digitizer tab.')