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Re: What is going on with the minor ticks on log plots????? [message #12585 is a reply to message #12579]

Wed, 26 August 1998 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Joe (Post.Reply@This.News.Group) writes:

> I'm running v5.1 under NT and have noticed the following bad
> behavior. While using the /XLOG key along with even powers of
> 10 for XRANGE and XTICKS set to the proper number of decades
> and xminor set to zero. I either do or do not get the expected
> minor ticks at (2,3,4,5,6,7,8,9). After some experimentation, it
> became apparent that the range specified by XRANGE had to
> fall wholly within the range from 1.000 to 1.e10.
>
> That is
> plot,[1],/nodata,/xlog,xrange=[1,1000],xticks=3,xminor=0
> works, but
> plot,[1],/nodata,/xlog,xrange=[0.1,100],xticks=3,xminor=0
> plot,[1],/nodata,/xlog,xrange=[1.e8,1.e11],xticks=3,xminor=0
> do not!
>
> This strikes me as being arbitrary behavior and, therfore,
> a BUG in IDL. This may actually be a very old bug going back
> several versions of IDL. Does this happen on other platforms?
> It also appears on IDL for Digital Unix as far as I know.
>
> Is there a way around this to force the proper minor ticks no
> matter the bounds of XRANGE. I have not tested this on YRANGE
> but assume there is similar behavior.

I am running Windows NT 4, SP3 on my machine and I find that
all three of these commands work correctly in both IDL 5.1 and
IDL 5.1.1. Could this be a graphics driver problem?

Cheers,

David

----------------------------------------------------------
David Fanning, Ph.D.
Fanning Software Consulting
E-Mail: davidf@dfanning.com
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		Re: What is going on with the minor ticks on log plots????? By: Joe[2] on Wed, 26 August 1998 00:00
		Re: What is going on with the minor ticks on log plots????? By: Joe[2] on Wed, 26 August 1998 00:00
		Re: What is going on with the minor ticks on log plots????? By: Joe[2] on Wed, 26 August 1998 00:00
		Re: What is going on with the minor ticks on log plots????? By: davidf on Wed, 26 August 1998 00:00

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