From 5ecda002221e6639796e214960ec5485366ae3aa Mon Sep 17 00:00:00 2001
From: Nicola Vigano <nicola.vigano@esrf.fr>
Date: Wed, 6 May 2015 17:22:55 +0200
Subject: [PATCH] GUI: Added simple function for efficiently collect point
coordinates by clicking in the image
Signed-off-by: Nicola Vigano <nicola.vigano@esrf.fr>
---
zUtil_GUI/gtGuiCollectPointsFromImage.m | 36 +++++++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100755 zUtil_GUI/gtGuiCollectPointsFromImage.m
diff --git a/zUtil_GUI/gtGuiCollectPointsFromImage.m b/zUtil_GUI/gtGuiCollectPointsFromImage.m
new file mode 100755
index 00000000..880f747d
--- /dev/null
+++ b/zUtil_GUI/gtGuiCollectPointsFromImage.m
@@ -0,0 +1,36 @@
+function points = gtGuiCollectPointsFromImage(map)
+ f = figure();
+ ax = axes('parent', f);
+ map = (map - min(map(:))) ./ (max(map(:)) - min(map(:)));
+ im = imagesc(map, 'parent', ax);
+
+ cm = uicontextmenu('Parent', f, 'Callback', @(src, evt)save_clicked_point());
+ set(im, 'UIContextMenu', cm);
+ uimenu(cm, 'Label', 'Add point..', 'Callback', @(src, evt)add_current_point());
+ uimenu(cm, 'Label', 'Exit', 'Callback', @(src, evt)get_finally_out());
+
+ point = zeros(1, 2);
+
+ points = zeros(0, 2);
+
+ get_out = false;
+
+ while(~get_out)
+ pause(0.001);
+ end
+
+ close(f);
+
+ function save_clicked_point()
+ point = get(ax, 'CurrentPoint');
+ point = round(point(1, 1:2));
+ end
+
+ function add_current_point()
+ points(end+1, :) = point;
+ end
+
+ function get_finally_out()
+ get_out = true;
+ end
+end
--
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