Re: Blurry Graphs

[John B. Thoo]

On Feb 17, 2014, at 10:52 AM, Ben Abbott <address@hidden> wrote:

> On Feb 17, 2014, at 11:51 AM, Jordan Erisman <address@hidden> wrote:
> 
>> On Mon, Feb 17, 2014 at 10:33 AM, Ben Abbott <address@hidden> wrote:
>> 
>> On Feb 17, 2014, at 11:29 AM, Jordan Erisman <address@hidden> wrote:
>> 
>>> On Feb 17, 2014 7:52 AM, "Ben Abbott" <address@hidden> wrote:
>>>> 
>>>> On Feb 16, 2014, at 11:08 PM, Jordan Erisman <address@hidden> wrote:
>>>> 
>>>>> On Sun, Feb 16, 2014 at 7:00 PM, Ben Abbott <address@hidden> wrote:
>>>>>> 
>>>>>> 
>>>>>> On Feb 15, 2014, at 5:46 PM, Jordan Erisman <address@hidden> wrote:
>>>>>> 
>>>>>>> Hello,
>>>>>>> 
>>>>>>> I have Octave installed on my Macbook Pro. When I go to plot my graphs 
>>>>>>> using X11, the images are very blurry. I have plotted a few graphs on a 
>>>>>>> PC at my school and the graphs are very clear. I am new to octave, and 
>>>>>>> do not much about it. I would also like to know how to save the graphs 
>>>>>>> from X11 to say, a word document. Thanks for the help in advance.
>>>>>>> 
>>>>>>> Jordan
>>>> 
>>>> 
>>>>>> 
>>>>>> X11 on Mac OSX doesn't do any anti-aliasing.  If you can tell us what 
>>>>>> version of Octave you are running and where you get if from, as well as 
>>>>>> what version of Mac OSX you are running it on we'll be able to help out.
>>>>>> 
>>>>>> To save a graph to include in a word document, try ....
>>>>>> 
>>>>>>        print test.png
>>>>>> 
>>>>>> And then add the png picture to your word document.  Word on Mac OSX 
>>>>>> lets you use PDF files for pictures, which often gives a superior 
>>>>>> result.  If you are running Octave whose version is 3.4.x, 3.6.x, or 
>>>>>> 3.8.x, then you can ....
>>>>>> 
>>>>>>        print -dpdfwrite test.pdf
>>>>>> 
>>>>>> Ben
>>>>> 
>>>>> I have GNU Octave, version 3.6.4 installed on my 10.9.1 Macbook via fink. 
>>>>> The plots are clear when I manually set the environment to plot in 
>>>>> aquaterm, but I prefer x11 if possible.
>>>> 
>>>> 
>>>> Please bottom-post ...
>>>> 
>>>> http://en.wikipedia.org/wiki/Posting_style#Bottom-posting
>>>> 
>>>> And avoid top-posting ...
>>>> 
>>>> http://en.wikipedia.org/wiki/Posting_style#Top-posting
>>>> 
>>>> For Octave via Fink, I recommend you install the atlas variant (there are 
>>>> bugs in Apple's vecLib).
>>>> 
>>>> fink install octave364-atlas-dev
>>>> 
>>>> 
>>>> To improve the graphic display, I'd avoid x11 and if you'd like to avoid 
>>>> Aquaterm, then try wxt or qt.
>>>> 
>>>> 
>>>> fink install gnuplot-wxcocoa-qtmac
>>>> 
>>>> 
>>>> When you run Octave, you can compare the different plots by ...
>>>> 
>>>> 
>>>> close all
>>>> 
>>>> graphics_toolkit gnuplot
>>>> 
>>>> figure (1)
>>>> 
>>>> clf ()
>>>> 
>>>> setenv GNUTERM wxt
>>>> 
>>>> plot (rand (3))
>>>> 
>>>> title ("wxt")
>>>> 
>>>> figure (2)
>>>> 
>>>> clf ()
>>>> 
>>>> setenv GNUTERM qt
>>>> 
>>>> plot (rand (3))
>>>> 
>>>> title ("qt")
>>>> 
>>>> 
>>>> Ben
>>>> 
>>>> 
>>> 
>>> Thank you for all of the tips, Ben. I have one more question. Once I find 
>>> which plots I like, how do I get octave to permanently plot the one I 
>>> choose. I tried to do this with aquaterm by editing the octaverc file, and 
>>> adding the line "setenv GNUTERM aqua," but it still plotted in X11.
>>> 
>>> Thanks,
>>> 
>>> Jordan
>> 
>> The file you'll need to edit is "~/.octaverc".  The tilde "~" refers to your 
>> home directory (i.e. the ".octaverc" file needs to be in your home 
>> directory), and the dot "." preceding "octaverc" makes the file invisible.  
>> You need the dot "." since it is also part of the filename.  Since the file 
>> is invisible, you won't see it from the Finder.  Instead you'll need to "ls 
>> -ah ~" from a Terminal window.
>> 
>> Ben
>> 
>> 
>> 
>> Im sorry that I probably keep asking questions, but I typed in the command 
>> ls -ah ~/.octaverc, and got the line 
>> /Users/Jordan/.octaverc, I went to that directory and saw a file called 
>> #.octaverc# and edited it, but still no luck. Maybe I misunderstood the 
>> directions.
>> 
>> Jordan 
> 
> I don't know what "#.octaverc#" is from.  You want to edit  
> "/Users/Jordan/.octaverc"
> 
> If you try to use TextEdit, you won't see .octaverc because it is invisible.
> 
> I don't know what your app your system will use, but from the Terminal you 
> can try "open ~/.octaverc"

To use TextEdit, try from Terminal

  open -a TextEdit ~/.octaverc


---John.