# HG changeset patch
# User Rik <rik@octave.org>
# Date 1626961997 25200
# Node ID 4f51ea7a510a238909f1e363aa0bf74b8cc458a3
# Parent  ef865fcd4611ed354bcc60910dcc21aa6924434e
Suppress incorrect warning in semilog[xy]err plots (bug #60959).

* __errplot__.m (__do_errplot__): When creating the line objects that form the
plot use initial "xdata", "ydata" of [1,1].  The default data for the plot
system is [0, 1], [0, 1] and the point (0,0) causes an warning about
non-positive data on log-axis plots.

diff -r ef865fcd4611 -r 4f51ea7a510a scripts/plot/draw/private/__errplot__.m
--- a/scripts/plot/draw/private/__errplot__.m	Wed Jul 21 13:25:46 2021 -0400
+++ b/scripts/plot/draw/private/__errplot__.m	Thu Jul 22 06:53:17 2021 -0700
@@ -126,8 +126,12 @@
     args = __add_datasource__ ("__do_errplot__", hg,
                                {"x", "y", "l", "u", "xl", "xu"});
 
-    hl = [(__line__ (hg, "color", lc, "linestyle", "-", "marker", "none")),
-          (__line__ (hg, "color", lc, "linestyle", ls, "marker", mk))];
+    ## Use a single data point for line rather than default data of [0, 1].
+    ## The real data will be applied to the line object later.  See bug #60959.
+    hl = [__line__(hg, "xdata", 1, "ydata", 1,
+                       "color", lc, "linestyle", "-", "marker", "none"),
+          __line__(hg, "xdata", 1, "ydata", 1,
+                       "color", lc, "linestyle", ls, "marker", mk)];
 
     switch (numel (varargin))
       case 2