[Visualpython-users] Clarifying question regarding semi-log plots

[Gabor K. <Kal...@ms...>]

In my earlier (9/11/08) "submit" I asked:
    "How can one "fool" Vpython  to display y=f(log10(x))  as a semi-log plot?"

To clarify: 
    How can I change the "tick-marks" to a log scale?

see sample program below:

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from visual import *
from visual.graph import *


graph1=gdisplay(x=0,y=0, width=400,height=300,title="semilog",xtitle="f=10^x",
                ytitle="y",xmax=4,xmin=1,ymax=500,ymin=0,
                foreground=color.black,background=color.white)
plot1 = gvbars(delta=0.5, color=color.green)

x=[10,100,1000]
y=[400,200,100]

for i in range(0,3):
    plot1.plot(pos=(log10(x[i]),y[i]))