Re: print produces strange results (4.0.0-rc2, Win7)

[Martin Kunz]

Am 11.04.2015 um 03:31 schrieb Tatsuro MATSUOKA:
> ----- Original Message -----
>
>> From: tmacchant
>> To: help-octave
>> Cc: 
>> Date: 2015/4/10, Fri 23:16
>> Subject: Re: print produces strange results (4.0.0-rc2, Win7)
>>
>> **********************************************
>> 1) Try using graphics_backend("gnuplot") and cairo based 
>> terminals ("wxr", "qt", "pdfcairo", 
>> "pngcairo").
>>
>> 2) Try using UTF characters directly (i.e. instead of ylabel 
>> ("\\Omega")
>>   use ylabel("Ω"))
>>
>> Hope that helps.
>>
>> Dmitri
>> ***********************************************
>>
>> The gnuplot bundled with the current octave binary does not support cairo
>> based nor qt terminal.  To use cairo based terminal, you should download and
>> install the gnuplot from the gnuplot official web site.  You should set
>> gnuplot_binary that points to the full path to which the gnuplot from
>> official web site is installed.  For current octave. I recommend to use
>> version 4.6.6 but not 5.0.0.
>>
>
> The gnuplot official web site:
> http://www.gnuplot.info/
>
> 　Version 4.6 Release
> 　　Download from SourceForge
>
> Download 32 bit or 64 bit version according to your PC environment.
>
>
> Install binary where you want. I strongly recommend to install it  to the 
> folder whose full-path does not have any white space.
>
> Ex. 
>    C:\Program Files\gnuplot : not recommended
>    C:\Programs\gnuplot      : recommended
>
> Test:
>   >> gnuplot_binary C:\Programs\gnuplot\bin\gnuplot.exe
>   >> setenv GNUTERM wxt
>   >> plot ([0:10],[0:10].^2)
>
> If you want to the above default, add the below in the end of
> C:\octave\Octave-4.0.0-rc2\share\octave\4.0.0-rc2\m\startup\octaverc
>
>
> gnuplot_binary C:\Programs\gnuplot\bin\gnuplot.exe
>
> setenv GNUTERM wxt
>
>
> Hope this helps.
>
> Tatsuro
>
> _______________________________________________
> Help-octave mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/help-octave

Dear Dmitri and Tatsuro,

Thanks for your suggestions. I have set up a separate Gnuplot
installation as the graphics toolkit for Octave as you suggested:

>> gnuplot_binary
ans = D:\Software\gnuplot\bin\gnuplot.exe

When I ran my test script, I got a message that the epstool binary is
not installed and some output formats would be not available. So I
downloaded epstool-3.08-win32.zip from
http://fossies.org/linux/misc/ghost/ghostgum/epstool-3.08-win32.zip/ and
added the bin-folder to my path system variable.
Furthermore, I have switched to Octave 4.0.0-rc3 this morning and
reinstalled Ghostscript 9.16 64bit.

When I run the attached script, the result is worse than ever before. I
get the following output:

>> plotTest
ans = 4.0.0-rc3
ans = gnuplot
Error: /undefined in -1.#QNAN
Operand stack:
   --nostringval--
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--
--nostringval--   2   %stopped_push   --nostringval--  --nostringval--
 --nostringval--   false   1   %stopped_push
 1951   1   3   %oparray_pop   1950   1   3   %oparray_pop
--nostringval--   1934   1   3   %oparray_pop   1820   1   3
%oparray_pop   --nostringval--   %errorexec_pop   .runexec2
 --nostringval--   --nostringval--   --nostringval--   2  %stopped_push
  --nostringval--
Dictionary stack:
   --dict:1197/1684(ro)(G)--   --dict:0/20(G)--   --dict:83/200(L)--
--dict:39/64(L)--
Current allocation mode is local
GPL Ghostscript 9.16: Unrecoverable error, exit code 1
Error: /undefined in -1.#QNAN
Operand stack:
   --nostringval--
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--
--nostringval--   2   %stopped_push   --nostringval--  --nostringval--
 --nostringval--   false   1   %stopped_push
 1951   1   3   %oparray_pop   1950   1   3   %oparray_pop
--nostringval--   1934   1   3   %oparray_pop   1820   1   3
%oparray_pop   --nostringval--   %errorexec_pop   .runexec2
 --nostringval--   --nostringval--   --nostringval--   2  %stopped_push
  --nostringval--
Dictionary stack:
   --dict:1198/1684(ro)(G)--   --dict:0/20(G)--   --dict:83/200(L)--
--dict:39/64(L)--
Current allocation mode is local
GPL Ghostscript 9.16: Unrecoverable error, exit code 1
>> plotTest
ans = 4.0.0-rc3
ans = gnuplot
Error: /undefined in -1.#QNAN
Operand stack:
   --nostringval--
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--
--nostringval--   2   %stopped_push   --nostringval--  --nostringval--
 --nostringval--   false   1   %stopped_push
 1951   1   3   %oparray_pop   1950   1   3   %oparray_pop
--nostringval--   1934   1   3   %oparray_pop   1820   1   3
%oparray_pop   --nostringval--   %errorexec_pop   .runexec2
 --nostringval--   --nostringval--   --nostringval--   2  %stopped_push
  --nostringval--
Dictionary stack:
   --dict:1197/1684(ro)(G)--   --dict:0/20(G)--   --dict:83/200(L)--
--dict:39/64(L)--
Current allocation mode is local
GPL Ghostscript 9.16: Unrecoverable error, exit code 1
Error: /undefined in -1.#QNAN
Operand stack:
   --nostringval--
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--
--nostringval--   2   %stopped_push   --nostringval--  --nostringval--
 --nostringval--   false   1   %stopped_push
 1951   1   3   %oparray_pop   1950   1   3   %oparray_pop
--nostringval--   1934   1   3   %oparray_pop   1820   1   3
%oparray_pop   --nostringval--   %errorexec_pop   .runexec2
 --nostringval--   --nostringval--   --nostringval--   2  %stopped_push
  --nostringval--
Dictionary stack:
   --dict:1198/1684(ro)(G)--   --dict:0/20(G)--   --dict:83/200(L)--
--dict:39/64(L)--
Current allocation mode is local
GPL Ghostscript 9.16: Unrecoverable error, exit code 1

The resulting files and screenshots can be accessed via
https://oc.bgc.mpg.de/public.php?service=files&t=62be247e133afe4918954b2449c1ac2f
(The list moderator asked me not to attach them because of their size.)
f1.png is not being created at all. From the figure window it seems that
graphics_toolkit is just ignored and Octave still uses Qt Handles. They
look exactly like before, only the ylabel in figure 2 consists of
strange symbols now. The files look a bit different now, but not much
better.
Something seems very wrong here...

plotTest.m
Description: Text document