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changeset 21658:2f9078956a63

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don't open new figures unnecessarily in demos * brighten.m, contrast.m, copyobj.m: Reuse existing figure (if any) by calling clf instead of figure for the first figure window.
author John W. Eaton <jwe@octave.org>
date Fri, 29 Apr 2016 16:37:30 -0400
parents b45d53d1d638
children ff2347e1df02
files scripts/image/brighten.m scripts/image/contrast.m scripts/plot/util/copyobj.m
diffstat 3 files changed, 6 insertions(+), 4 deletions(-) [+]
line wrap: on
line diff
--- a/scripts/image/brighten.m	Fri Apr 29 16:35:41 2016 -0400
+++ b/scripts/image/brighten.m	Fri Apr 29 16:37:30 2016 -0400
@@ -84,7 +84,7 @@
 
 %!demo
 %! ## First figure uses default grayscale colormap
-%! figure;
+%! clf;
 %! colormap (gray (64));
 %! image (1:64, linspace (0, 1, 64), repmat ((1:64)', 1, 64));
 %! axis ([1, 64, 0, 1], "ticy", "xy");
--- a/scripts/image/contrast.m	Fri Apr 29 16:35:41 2016 -0400
+++ b/scripts/image/contrast.m	Fri Apr 29 16:37:30 2016 -0400
@@ -49,7 +49,7 @@
 
 
 %!demo
-%! figure;
+%! clf;
 %! img = reshape (1:100, 10, 10);
 %! imagesc (img);
 %! colormap (gray (64));
--- a/scripts/plot/util/copyobj.m	Fri Apr 29 16:35:41 2016 -0400
+++ b/scripts/plot/util/copyobj.m	Fri Apr 29 16:37:30 2016 -0400
@@ -116,7 +116,8 @@
 ## with FLTK backend which is not respecting the set ('position') call.
 
 %!demo
-%! hobj = figure ('name', 'Original', 'numbertitle', 'off');
+%! hobj = clf;
+%! set (hobj, 'name', 'Original', 'numbertitle', 'off');
 %! hold on;
 %! x = 1:10;
 %! y = x.^2;
@@ -139,7 +140,8 @@
 %! drawnow ();
 
 %!demo
-%! hobj = figure ('name', 'Original', 'numbertitle', 'off');
+%! hobj = clf;
+%! set (hobj, 'name', 'Original', 'numbertitle', 'off');
 %! subplot (2,2,1);
 %! hold on;
 %! contourf (rand (10, 10));