Re: recent change to __go_draw_axes__

[Daniel J Sebald]

On 02/09/2013 04:27 PM, John W. Eaton wrote:
> After this change:
>
>    # HG changeset patch
>    # User Ben Abbott<address@hidden>
>    # Date 1360366055 18000
>    # Node ID 1e35b64ac31ade05453c03bacb9df73ab05b387e
>    # Parent  5b2126a8c84fa4624c737e5921362b79a0e879d4
>    Pad binary data to gnuplot with a space
>
>    * scripts/plot/private/__go_draw_axes__.m: Add a space to the end of each
>    binary record.  Fixes the "nset obj 1;\n<- line 0: invalid command".
>
>    diff --git a/scripts/plot/private/__go_draw_axes__.m 
> b/scripts/plot/private/__go_draw_axes__.m
>    --- a/scripts/plot/private/__go_draw_axes__.m
>    +++ b/scripts/plot/private/__go_draw_axes__.m
>    @@ -2027,6 +2027,7 @@
>           endif
>         endif
>       endif
>    +  fprintf (plot_stream, "\n # pad binary data with a space\n")
>
>     endfunction
>
> I'm seeing output like this when making some of the figures for the
> manual:
>
>    $ ../../run-octave -f -q -H -p . --eval "geometryimages ('voronoi', 'eps');"
>
>    multiplot>  
> �-���?�;[G�&�?Ȟ�ف�?;�����?0a$"�?J���?X�x����?�F��?�T3t��?�+ܣ��?�Q���w�?���:��?j=���6�?�
>               ^
>               line 0:
>
>
>    multiplot>  
> k���?y�,Hy��?�&���?���&���?Lî\��?�D��Zx�?/-Y(!��?1`�+�:�?�5�6�e�?�)ӻ���?����C�?�{i�7��?��,
>                              
> �?j�򫟇�?gD�}J��?���/N�?�������?R5b���?�����?_�W���?�7N��~�?�(a��?g�g�Q�?YwW�u�?)�—�#�?"��KB�?�������?�j���?�ker��?z��?��?�����?��
>          �e�?:I�fj[�?3t��}
>    ����?�Z                �?�����%�?=��?�<�����?N/*       d�?Z�
>                ^
>               line 0:
>
>
> What problem was the extra blank line attempting to solve?  Maybe it
> works with some versions of gnuplot and not others?  I'm using 4.6.0.

I've not heard of any changes to gnuplot's binary format.  It looks to 
me that Ben was trying to fix

"nset obj 1;\n"

showing up in the gnuplot stream because "nset" is not a valid command. 
 "set obj" is a valid command.  Perhaps the goal was to change "nset" 
to "\nset".

Dan