Re: Problem with appearance of plots

[Lennart O]

Ben Abbott wrote:
> 
> 
> On Tuesday, February 17, 2009, at 12:09PM, "Lennart O"
> <address@hidden> wrote:
>>
>>Ben Abbott wrote:
>>> 
>>> On Feb 17, 2009, at 5:10 AM, Lennart O wrote:
>>> 
>>>> Ben Abbott wrote:
>>>>>
>>>>> On Feb 16, 2009, at 6:29 PM, Lennart O wrote:
>>>>>
>>>>>>
>>>>>> Hi I'm having a problem with plots that are not very pretty. It's
>>>>>> almost like
>>>>>> an old version of gnuplot is being used. The result looks very
>>>>>> crude. I
>>>>>> should mention that I am using Octave 3.0.1 on Ubuntu 8.10. I took
>>>>>> some
>>>>>> screenshots to show what I mean.
>>>>>>
>>>>>> Plot with Octave:
>>>>>> http://www.nabble.com/file/p22048113/octave.png
>>>>>>
>>>>>> Plot with Gnuplot:
>>>>>> http://www.nabble.com/file/p22048113/gnuplot.png
>>>>>>
>>>>>> Any idea how to fix this? Is it a problem with the Ubuntu package or
>>>>>> do I
>>>>>> need to change some settings in Octave?
>>>>>>
>>>>>> ps. Sorry about the images being so large.
>>>>>
>>>>> Octave is telling gnuplot to use the x11 terminal, and when you run
>>>>> gnuplot directly it is using the wxt terminal.
>>>>>
>>>>> Try ...
>>>>>
>>>>>   $ export GNUTERM=wxt
>>>>>   $ octave
>>>>>
>>>>> ... and then do some plots.
>>>>>
>>>>> Ben
>>>>>
>>>> Thank you very much, entering that into the terminal did the trick.  
>>>> Now I
>>>> just need to figure out how to change which numbers are printed on the
>>>> axises, theres' not enough room for them when doing a sublot. But  
>>>> that can
>>>> be done with gnuplot syntax directly in the m-file, right?
>>> 
>>> I think you're referring to the 2.1.x version of octave. Presently,  
>>> when using subplot, there are problems with the positioning of the  
>>> tick marks, axes labels, and titles.
>>> 
>>> If you are referring to the horizontal spacing of the x-axis tick- 
>>> marks and tick-labels, you can change the defaults by
>>> 
>>>     set (hax, 'xtick', xticks)
>>> 
>>> where hax is the handle to the axes and xticks is a vector containing  
>>> values for where you'd like the tick-mark labels placed.
>>> 
>>>> Also, how do I make the GNUTERM export more permanent so I don't  
>>>> have to
>>>> type it in every time I want to run Octave?
>>> 
>>> You can place it in the startup script for the shell that runs octave.  
>>> For example, if  you are running a bash shell, place it is ~/.bashrc.
>>> 
>>> Ben
>>> 
>>> p.s. There is presently a 3.0.3 version available that fixes some bugs  
>>> (soon there will be a 3.0.4). I recommend you update you installation.
>>> 
>>> 
>>I am using version 3.0.1 but yes I should update. 
>>
>>Thanks for your help, I got it all working now. 
>>I used: set(gca,'ytick',[-2 -1 0 1 2]). Not sure what 'gca' is, found it
in
>>another thread, except that it apparently is a handle for an axis. Just
>>regurgitating what you said. :) Care to explain? 
> 
> gca == Get Current Axes
> 
> Ben
> _______________________________________________
> Help-octave mailing list
> address@hidden
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> 
> 

Ah that makes a lot of sense now. Thanks again.
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