gnuplot / Bugs / #2865 Plot title is not initialized correctly following a plot with no valid data

A portable, multi-platform, command-line driven graphing utility

#2865 Plot title is not initialized correctly following a plot with no valid data

Milestone: None

Status: pending-fixed

Owner: nobody

Labels: None

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Updated: 2 days ago

Created: 2 days ago

Creator: Ethan Merritt

Private: No

If a plot title is given as a string-valued function, this expression is stored for evaluation after the plot is drawn and then cleared. However if the plot is never drawn because there are no valid data points, the stored expression is not cleared. If the following plot component does not specify a title, it inherits the unused expression which is at best wrong and at worst may cause an error failure because the expression is no longer valid.

Reproducer:

plot for [foo in "A B"] 'silver.dat' title foo if (0), 40-x/2
     "title.bug" line 11: warning: Skipping data file with no valid points
     "title.bug" line 11: warning: Skipping data file with no valid points
     "title.bug" line 11: undefined variable: foo

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Description has changed:

Diff:

--- old
+++ new
@@ -2,7 +2,6 @@

 Reproducer:


-    list = &#34;A B&#34;
     plot for [foo in &#34;A B&#34;] &#39;silver.dat&#39; title foo if (0), 40-x/2
          &#34;title.bug&#34; line 11: warning: Skipping data file with no valid points
          &#34;title.bug&#34; line 11: warning: Skipping data file with no valid points

Group: -->
Priority: -->

Description has changed:

Diff:

--- old
+++ new
@@ -6,5 +6,3 @@
          &#34;title.bug&#34; line 11: warning: Skipping data file with no valid points
          &#34;title.bug&#34; line 11: warning: Skipping data file with no valid points
          &#34;title.bug&#34; line 11: undefined variable: foo
-
-The same problem is present for splot.

Ethan Merritt - 2 days ago

status: open --> pending-fixed
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Ethan Merritt - 2 days ago

Fixed in 6.1
Queued for 6.0.5

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Plot title is not initialized correctly following a plot with no valid data

A portable, multi-platform, command-line driven graphing utility

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#2865 Plot title is not initialized correctly following a plot with no valid data

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