Re: Empty plot

[John B. Thoo]

On Dec 17, 2010, at 8:26 AM, bpabbott wrote:

> On Dec 17, 2010, at 09:24 AM, "John B. Thoo" <address@hidden> wrote:
> 
>> On Dec 17, 2010, at 5:19 AM, Ben Abbott wrote:
>> 
>> > On Dec 16, 2010, at 10:39 PM, John B. Thoo wrote:
>> > 
>> >> Hi. I'm sorry if this is a FAQ, but I haven't been able to find an answer.
>> >> 
>> >> I'm using Octave 3.2.3 on Mac OS X 10.6.4 in X11. When I try to plot, I 
>> >> get an empty plot window and this:
>> >> 
>> >> octave-3.2.3:1> getenv ("GNUTERM")
>> >> ans = x11
>> >> octave-3.2.3:2> x = 0:0.1:pi;
>> >> octave-3.2.3:3> plot (x, sin(x))
>> >> octave-3.2.3:4> 
>> >> gnuplot> set palette file "-" binary record=64 using 1:2:3:4;
>> >> ^
>> >> line 0: Gray scale not sorted in gradient.
>> >> 
>> >> 
>> >> octave-3.2.3:4>
>> >> 
>> >> When I start gnuplot on its own, I see that I have Version 4.2 patchlevel 
>> >> 5.
>> >> 
>> >> Any help would be appreciated. Thanks.
>> >> 
>> >> ---John.
>> >> 
>> >> -----------------------------------------------------------------------
>> >> "There are no atheists in foxholes."
>> >> ---Fr. William T. Cummings, M.M. (WWII, Philippines)
>> >> [_The Grunt Padre_, CMJ Marian Pub., p. 56]
>> > 
>> > http://atheism.about.com/od/atheismmyths/a/AtheistsFoxhole.htm
>> > 
>> > John, please tell us where you got your Octave. Was it from MacPorts, 
>> > Fink, Sourceforge, or somewhere else?
>> > 
>> > Also it is possible to have more than one version of gnuplot. Please check 
>> > which one Octave is using by typing ...
>> > 
>> > __gnuplot_version__
>> > 
>> > Since you're set up to use X11, please make sure the X11.app is running 
>> > before you try to plot. I've had some troubles in X11 on MacOS X, and 
>> > often have to quit X11 and start it again.
>> > 
>> > Ben
>> 
>> Hello, Ben. Thanks for your reply.
>> 
>> I'm using Thomas Treichi's binary of Octave from sourceforge. The thing is 
>> that I could plot in X11 using Thomas's previous version on my former 
>> PowerBook 12". It was only after upgrading to Octave 3.2.3 i386 because I 
>> had gotten a MacBook Pro that plotting broke.
>> 
>> I had asked about this previously
>> 
>> <http://octave.1599824.n4.nabble.com/set-palette-file-quot-quot-binary-record-64-using-1-2-3-4-td2292036.html>
>> 
>> but didn't get any reply then. Unfortunately, I haven't been able to figure 
>> out the problem since, either.
>> 
>> By the way, this is what Octave returns for gnuplot version:
>> 
>> octave-3.2.3:1> __gnuplot_version__
>> ans = 4.2.5
>> octave-3.2.3:2>
>> 
>> Thanks again for your reply.
>> 
>> ---John.
>  
> I haven't encountered the specific problem you are seeing. However, since you 
> are using SnowLeopard, you'll want to read the link below, before upgrading 
> to 10.6.5.
> 
> http://sourceforge.net/projects/octave/files//Octave%20MacOSX%20Binary/2009-10-03%20binary%20of%20Octave%203.2.3/README_OSX1065.txt/view

Ben, I upgraded the OS to 10.6.5 today, so your advice to read the above link 
was very timely.  I made the changes suggested in the link to Octave and to 
gnuplot, and they seem to be working OK.  Thanks very much.

---John.

-----------------------------------------------------------------------
Pascal's wager
<http://www.catholic.com/thisrock/2003/0303fea1.asp>