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diff spyh.m @ 691:527a7b954f26 feature/quantumTriangles

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Merge with default
author Ylva Rydin <ylva.rydin@telia.com>
date Thu, 14 Sep 2017 16:00:36 +0200
parents 12db86a8ec7b
children
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line diff
--- a/spyh.m	Mon Aug 07 13:20:48 2017 +0200
+++ b/spyh.m	Thu Sep 14 16:00:36 2017 +0200
@@ -3,10 +3,14 @@
     [n,m] = size(A);
     [I,J] = find(A);
 
-    h = plot(J,I);
-    h.LineStyle = 'none';
-    h.Marker = '.';
-    h.MarkerSize = 14;
+    if ~isempty(J)
+        h = plot(J,I);
+        h.LineStyle = 'none';
+        h.Marker = '.';
+        h.MarkerSize = 14;
+    else
+        h = [];
+    end
 
     a = gca;
     xlim([0 m+1]);