# HG changeset patch
# User Jordi Gutiérrez Hermoso <jordigh@octave.org>
# Date 1464563101 14400
# Node ID 305b7361a5bd7094f7dc672cc9981462aaf6a3a2
# Parent  f81a65086498ca94eeb70a482fcb53abb6cb44e2
showalgo: save a snapshot instead of waiting for keyboard input

diff --git a/talk/code/showalgo.m b/talk/code/showalgo.m
--- a/talk/code/showalgo.m
+++ b/talk/code/showalgo.m
@@ -20,7 +20,14 @@
 
 graphics_toolkit fltk;
 figure
-pause
+
+
+function snapshot()
+  persistent x = 1;
+  fname = sprintf("%02d.png", x);
+  print("-dpng", fname);
+  x++;
+endfunction
 
 for iter = 1:length(Am)
   if iter > rows(L)
@@ -42,7 +49,7 @@
 
   printf("Remaining: %d\n", remaining(iter))
   imshow(imgH);
-  pause
+  snapshot;
 
   ## Make the guess yellow
   [i,j] = find(Am(iter) == H);
@@ -50,7 +57,7 @@
   imgH(i,j,3) = 0;
 
   imshow(imgH);
-  pause
+  snapshot;
 
   if iter == length(Am)
     break
@@ -80,7 +87,7 @@
   imgH(i,j,3) = 0;
 
   imshow(imgLeft);
-  pause
+  snapshot;
 
   ## Check the right side
   imgRight = imgH;
@@ -105,16 +112,16 @@
   imgH(i,j,1) = imgH(i,j,2) = 1;
   imgH(i,j,3) = 0;
   imshow(imgRight);
-  pause
+  snapshot;
 
   imshow(imgH);
   printf("rank is between %d and %d (target: %d)\n",
          Ptot(iter), Qtot(iter), medc_idx)
-  pause
+  snapshot;
 
 endfor
 
 if (jackpot)
   printf("Jackpot!\n")
 endif
-pause
+snapshot;