comparison toolboxes/FullBNT-1.0.7/bnt/examples/dynamic/HHMM/Square/plot_square_hhmm.m @ 0:e9a9cd732c1e tip

first hg version after svn

+function plot_square_hhmm(ev)
+% Plot the square shape implicit in the evidence.
+% ev{i,t} is the value of node i in slice t.
+% The observed node contains a velocity (delta increment), which is converted
+% into a position.
+% The Q2 node specifies which model is used, and hence which color
+% to use: 1=red, 2=green, 3=blue, 4=black.
+
+Q1 = 1; Q2 = 2; Q3 = 3; F3 = 4; F2 = 5; Onode = 6;
+
+delta = cell2num(ev(Onode,:)); % delta(:,t)
+Q2label = cell2num(ev(Q2,:)); 
+
+T = size(delta, 2);
+pos = zeros(2,T+1);
+hold on
+cols = {'r', 'g', 'b', 'k'};
+for t=2:T+1
+  pos(:,t) = pos(:,t-1) + delta(:,t-1);
+  plot(pos(1,t), pos(2,t), sprintf('%c.', cols{Q2label(t-1)}));
+  if (t==2)
+    text(pos(1,t-1),pos(2,t-1),sprintf('%d',t))
+  elseif (mod(t,20)==0)
+    text(pos(1,t),pos(2,t),sprintf('%d',t))
+  end
+end
+