# HG changeset patch
# User Rik <rik@octave.org>
# Date 1523400367 25200
# Node ID 5251de3c34d7ebe4b2776dfdcf74b4a14d80d596
# Parent  ff830f8e61ac800e3b831d6f8f253c93e5f19ec4
Center label if only one value is given for a pie chart.

* __pie__.m: Use HorizontalAlignment value of "center" if there is
only a single value for the entire pie chart.

diff -r ff830f8e61ac -r 5251de3c34d7 scripts/plot/draw/private/__pie__.m
--- a/scripts/plot/draw/private/__pie__.m	Tue Apr 10 15:43:16 2018 -0700
+++ b/scripts/plot/draw/private/__pie__.m	Tue Apr 10 15:46:07 2018 -0700
@@ -131,8 +131,10 @@
     elseif (strcmp (caller, "pie"))
       if (xt > 0)
         align = "left";
+      elseif (xt < 0)
+        align = "right";
       else
-        align = "right";
+        align = "center";
       endif
 
       hlist = [hlist; patch(xoff + [0, -sind(xn)], yoff + [0, cosd(xn)], i);