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[Octave-bug-tracker] [bug #49757] Line drawing overlaying image fails un


From: Dan Sebald
Subject: [Octave-bug-tracker] [bug #49757] Line drawing overlaying image fails under the gnuplot toolkit
Date: Sun, 4 Dec 2016 05:23:05 +0000 (UTC)
User-agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:42.0) Gecko/20100101 Firefox/42.0

Follow-up Comment #2, bug #49757 (project octave):

I've identified where the problem is.  Redirecting the output shows the
following plot command:


plot "-" binary array=100x100 scan=yx origin=(1,1) dx=1 dy=1 using 1 title ""
with image; \
if (GPVAL_TERM eq "qt") unset obj 1;
plot "-" binary format='%float64' record=5 using ($1):($2) axes x1y1 title ""
with points linestyle 10 \
;


That should be a single "plot", e.g.,


if (GPVAL_TERM eq "qt") unset obj 1;
plot "-" binary array=100x100 scan=yx origin=(1,1) dx=1 dy=1 using 1 title ""
with image, \
     "-" binary format='%float64' record=5 using ($1):($2) axes x1y1 title ""
with points linestyle 10 \
;


The logic for constructing the command must be wrong.  I'll look at this at a
later time.


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