ultrasound: reworked after tests

- new classes in frappy_psi/ultrasound.py and frappy_psi/adq.mr.py
- add signal plottter
- move clients to bin/ directory

Change-Id: I8db8e5ebc082c346278f09e0e54504e070655f14

bin/peus-plot

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+import sys
+from frappy.client.interactive import Client
+from frappy_psi.iqplot import Plot
+import numpy as np
+import matplotlib.pyplot as plt
+
+if len(sys.argv) < 2:
+    print('Usage: python peusplot.py <maxY>')
+
+
+def get_modules(name):
+    return list(filter(None, (globals().get(name % i) for i in range(10))))
+
+
+secnode = Client('localhost:5000')
+time_size = {'time', 'size'}
+int_mods = [u] + get_modules('roi%d')
+t_rois = get_modules('roi%d')
+i_rois = get_modules('roi%di')
+q_rois = get_modules('roi%dq')
+
+if len(sys.argv) > 1:
+    maxy = float(sys.argv[1])
+else:
+    maxy = 0.02
+
+
+iqplot = Plot(maxy)
+
+for i in range(99):
+    pass
+
+try:
+    while True:
+        curves = np.array(u.get_curves())
+        iqplot.plot(curves,
+                    rois=[(r.time, r.time + r.size) for r in int_mods],
+                    average=([r.time for r in t_rois],
+                             [r.value for r in i_rois],
+                             [r.value for r in q_rois]))
+        plt.pause(0.5)
+        if iqplot.fig is None:  # graph window closed
+            break
+except KeyboardInterrupt:
+    iqplot.close()