[Octave-bug-tracker] [bug #52624] gnuplot toolkit binary image is only black pixels

[Rik]

Follow-up Comment #9, bug #52624 (project octave):

I think the algorithm you have now is right.

The interpretation does depend on the data type (integer vs. float) of the
"cdata" property.  Try this example


close all
figure ("colormap", [1 0 0; 0 1 0; 0 0 1]);  # RGB map
h = image ([0 1 2 3 4])
## "cdata" is double, therefore indexing begins at 1
## Displayed color is R R G B B
set (h, "cdata", uint8 ([0 1 2 3 4])
## "cdata" is now integer, indexing begins at 0
## Displayed color is R G B B B


Both FLTK and gnuplot produce the same image for the input above.


    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?52624>

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