[Octave-bug-tracker] [bug #52595] gnuplot toolkit fails "light" demo #11

[Dan Sebald]

URL:
  <http://savannah.gnu.org/bugs/?52595>

                 Summary: gnuplot toolkit fails "light" demo #11
                 Project: GNU Octave
            Submitted by: sebald
            Submitted on: Wed 06 Dec 2017 05:08:08 AM UTC
                Category: Plotting with gnuplot
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

    _______________________________________________________

Details:

In bug report https://savannah.gnu.org/bugs/?52589 is noted an error with the
light function demo 11:

"
I did notice that


graphics_toolkit gnuplot
demo light 11


produced this error


multiplot> splot "-" using 1:2:3:4 title "" with pm3d , "-" binary
format='%float64' record=4 using ($1):($2):($3) title "" with linespoints
linewidth 0.500000 pointtype -1 dashtype solid pointsize 0.666667 lc rgb "#00
, "-" binary format='%float64' record=4 using ($1):($2):($3) title "" with
linespoints linewidth 0.500000 pointtype -1 dashtype solid pointsize 0.666667
lc rgb "

"

What is wrong with the above is the RGB description construction only has the
first color component '"#00' rather than the proper '"#rrggbb"'.  I suspect
that the warning message before the above error message, i.e.,:


warning: "interp" not supported, using 1st entry of cdata
warning: called from
    __gnuplot_draw_axes__ at line 954 column 21
    __gnuplot_draw_figure__ at line 172 column 17
    __gnuplot_drawnow__ at line 86 column 5
[snip]
warning: "interp" not supported, using 1st entry of cdata
warning: called from
    __gnuplot_draw_axes__ at line 954 column 21
    __gnuplot_draw_figure__ at line 172 column 17
    __gnuplot_drawnow__ at line 86 column 5


is a clue as to why the color string isn't constructed correctly.

Also, let's see if we can reduce all those warnings to just a single warning.




    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?52595>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/