addDecorators.jy

# Das2's canvas object has two hooks for decorating the plot, to plot below and
# above the normal graphics.  These provide direct access to the Graphics object 
# that paints the canvas.  This demos how they are used.

reset()

import javax 
import org.das2.graph.Painter

ur= 'http://www.cottagesystems.com/honeycomb.1.gif' 
image= javax.imageio.ImageIO.read( getFile( ur, monitor ) )

class BottomPaint(org.das2.graph.Painter):
   def paint( self, g ):
      g.drawImage( image, java.awt.geom.AffineTransform(), None )


class TopPaint(org.das2.graph.Painter):
   def paint( self, g ):
      g.rotate( -15*PI/180,300,300 )
      g.setFont( java.awt.Font.decode( 'sans-42' ) )
      g.setColor( Color( 255,255,255,80 ) )
      g.drawString( "Provisional", 302,302 )
      g.setColor( Color( 0,0,0,80 ) )
      g.drawString( "Provisional", 300,300 )

bottom= BottomPaint()
top= TopPaint()

dom.canvases[0].controller.dasCanvas.removeBottomDecorators()
dom.canvases[0].controller.dasCanvas.removeTopDecorators()
dom.canvases[0].controller.dasCanvas.addBottomDecorator( bottom )
dom.canvases[0].controller.dasCanvas.addTopDecorator( top )
dom.plots[0].controller.dasPlot.setOpaque(True)
plot( 'http://cdaweb.gsfc.nasa.gov/istp_public/data/polar/hydra/hyd_h0/$Y/po_h0_hyd_$Y$m$d_v$v.cdf?ELECTRON_DIFFERENTIAL_ENERGY_FLUX&timerange=2000-01-09' )