#!/usr/bin/env python

import sys
sys.path.insert(1,'..')

import biggles
import Numeric, RandomArray

p = biggles.FramedPlot()
p.xrange = 0, 100
p.yrange = 0, 100
p.aspect_ratio = 1

x = Numeric.arange( 0, 100, 5 )
yA = RandomArray.normal( 40, 10, (len(x),) )
yB = x + RandomArray.normal( 0, 5, (len(x),) )

a = biggles.Points( x, yA, type="circle" )
a.label = "a points"

b = biggles.Points( x, yB )
b.label = "b points"
b.style( type="filled circle" )

l = biggles.Slope( 1, type="dotted" )
l.label = "slope"

k = biggles.PlotKey( .1, .9, [a,b,l] )

p.add( l, a, b, k )

#p.write_img( 400, 400, "example2.png" )
#p.write_eps( "example2.eps" )
p.show()