| Re: Axis question [message #17307] |
Tue, 28 September 1999 00:00 |
davidf
Messages: 2866
Registered: September 1996
|
Senior Member |
|
|
Mirko (loehmann@iep112.nat.uni-magdeburg.de ) writes:
> I have two sets of data i like to put in one plot with different axis and I
> can
> not find my mistake while using the axis procedure.
> The scaling of the second y -axis is logarithmic
> without setting the /ylog keyword to specify logarithmic Y axis.
>
> IDL> curve=loaddata(1)
> IDL> plot,20*curve+1,ystyle=8,position=[0.15,0.15,0.85,0.95],/ylo g
> IDL> axis,yaxis=1,yrange=[1,35],/save,ytitle='linear axis expected'
> IDL> oplot,curve+1,linestyle=0,psym=-4
>
> I've modified an example from D. Fannings book (its very good - i like it)
> to show what I mean.
Humm. Sure enough. Odd.
What I think is happening is that the /YLOG keyword sets
a system variable (!Y.Type) that is too "sticky". Or, more
likely, it doesn't get reset properly in the code. In any
case, you can work around your problem like this:
IDL> curve=loaddata(1)
IDL> plot,20*curve+1,ystyle=8,position=[0.15,0.15,0.85,0.95],/ylo g
IDL !Y.TYPE = 0
IDL> axis,yaxis=1,yrange=[1,35],/save,ytitle='linear axis expected'
IDL> oplot,curve+1,linestyle=0,psym=-4
Cheers,
David
P.S. Would you like to report this to RSI? :-)
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
