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IDL 8, log plots and titles [message #73119]

Tue, 26 October 2010 12:03

b_gom
Messages: 105
Registered: April 2003

Senior Member

Am I missing something, or is IDL 8 fumbling logarithmic y axes and
plot titles when using the new plot function?

When plotting log plots, the plot title seems to vanish, and also IDL
does not seem to be able to calculate the y range properly. In the
sample code below, compare the direct graphics output (which handles
the range and title correctly automatically) to the new plot function
output which doesn't seem to be able to figure out what I want:

----------------------------------------
x=findgen(100)/100*3*!pi
y=sin(x)

;This is what I expect; yaxis handles infinite log range and title
appears correctly
plot,x,y,/ylog,title='Direct Graphics Yrange and Title'

;Now for the plot function output:
;title works for linear y axes
p1=plot(x,y,yrange=[0.1,1],title='Linear Y Axis
Works',window_title='Linear Y Axis Works')
;title gone for log plots
p2=plot(x,y,/ylog,yrange=[0.1,1],title='Title Error Log Y
Axis',window_title='Title Error Log Y Axis')
;if you set the yrange, the title appears, but in the wrong place
p3=plot(x,(y+2)*10,/ylog,yrange=[1,100],title='Title Error Log Y
Axis',window_title='Title Error Log Y Axis')
;if you don't set the yrange, the title is gone
p4=plot(x,(y+2)*10,/ylog,title='Title Error Log Y
Axis',window_title='Title Error Log Y Axis')
----------------------------------------

Any ideas?

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[Message index]

		IDL 8, log plots and titles By: b_gom on Tue, 26 October 2010 12:03
		Re: IDL 8, log plots and titles By: b_gom on Wed, 27 October 2010 10:29
		Re: IDL 8, log plots and titles By: Mark Piper on Wed, 27 October 2010 09:50
		Re: IDL 8, log plots and titles By: David Fanning on Wed, 27 October 2010 07:14
		Re: IDL 8, log plots and titles By: penteado on Wed, 27 October 2010 07:08
		Re: IDL 8, log plots and titles By: David Fanning on Wed, 27 October 2010 07:00
		Re: IDL 8, log plots and titles By: Kenneth P. Bowman on Wed, 27 October 2010 06:37
		Re: IDL 8, log plots and titles By: penteado on Tue, 26 October 2010 21:26

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