Merge pull request #48 from pupil-labs/python3-examples

Update Python scripts

.gitignore

@@ -1,2 +1,3 @@
 dev_Refactor-and-demos/Library/
 dev_Refactor-and-demos/Temp/
+*.pyc

python_reference_client/README.md

@@ -8,7 +8,7 @@ This guide shows how to calibrate using the HMD_Calibration plugin in Pupil Capt
 The calibration plugin samples pupil positions and receives reference positions (positions of a stimulus on the left and right hmd screen) from the client app. The reference positions are determined by the client and sent in normalised screen coordinates with timestamp and id.
 
 ```python
-ref_data = [{'norm_pos':pos,'timestamp':t,'id':0},...]
+ref_data = [{'norm_pos': pos,'timestamp': t, 'id': 0},...]
 ```
 
 The right side is denoted as id 0 , the left side as id 1. The timestamp giving clock needs to be in sync with the Pupil Capture / Service.

python_reference_client/gaze_monitor.py

@@ -10,5 +10,8 @@
 print('connected')
 
 while True:
-    topic,g = monitor.recv()
-    print(g)
+    try:
+        topic,g = monitor.recv()
+        print(g)
+    except KeyboardInterrupt:
+        break

python_reference_client/hmd_calibration_client.py

@@ -15,28 +15,29 @@
 #convenience functions
 def send_recv_notification(n):
     # REQ REP requirese lock step communication with multipart msg (topic,msgpack_encoded dict)
-    req.send_multipart(('notify.%s'%n['subject'], msgpack.dumps(n)))
-    return req.recv()
+    req.send_string('notify.%s'%n['subject'], flags=zmq.SNDMORE)
+    req.send(msgpack.dumps(n, use_bin_type=True))
+    return req.recv_string()
 
 def get_pupil_timestamp():
-    req.send('t') #see Pupil Remote Plugin for details
-    return float(req.recv())
+    req.send_string('t') #see Pupil Remote Plugin for details
+    return float(req.recv_string())
 
 # set start eye windows
 n = {'subject':'eye_process.should_start.0','eye_id':0, 'args':{}}
-print send_recv_notification(n)
+print(send_recv_notification(n))
 n = {'subject':'eye_process.should_start.1','eye_id':1, 'args':{}}
-print send_recv_notification(n)
+print(send_recv_notification(n))
 time.sleep(2)
 
 
 # set calibration method to hmd calibration
 n = {'subject':'start_plugin','name':'HMD_Calibration', 'args':{}}
-print send_recv_notification(n)
+print(send_recv_notification(n))
 
 # start caliration routine with params. This will make pupil start sampeling pupil data.
 n = {'subject':'calibration.should_start', 'hmd_video_frame_size':(1000,1000), 'outlier_threshold':35}
-print send_recv_notification(n)
+print(send_recv_notification(n))
 
 
 # Mockup logic for sample movement:
@@ -45,7 +46,7 @@ def get_pupil_timestamp():
 
 ref_data = []
 for pos in ((0.5,0.5),(0,0),(0,0.5),(0,1),(0.5,1),(1,1),(1,0.5),(1,0),(.5,0)):
-    print 'subject now looks at position:',pos
+    print('subject now looks at position:', pos)
     for s in range(60):
         # you direct screen animation instructions here
 
@@ -65,13 +66,13 @@ def get_pupil_timestamp():
 # This notification can be sent once at the end or multiple times.
 # During one calibraiton all new data will be appended.
 n = {'subject':'calibration.add_ref_data','ref_data':ref_data}
-print send_recv_notification(n)
+print(send_recv_notification(n))
 
 # stop calibration
 # Pupil will correlate pupil and ref data based on timestamps,
 # compute the gaze mapping params, and start a new gaze mapper.
 n = {'subject':'calibration.should_stop'}
-print send_recv_notification(n)
+print(send_recv_notification(n))
 
 time.sleep(2)
 

python_reference_client/notification_monitor.py

@@ -1,4 +1,5 @@
-from zmq_tools import *
+import zmq
+from zmq_tools import Msg_Receiver
 
 
 ctx = zmq.Context()
@@ -10,6 +11,8 @@
 monitor = Msg_Receiver(ctx,'tcp://localhost:%s'%ipc_sub_port,topics=('notify.',))
 
 while True:
-    print(monitor.recv())
-
+    try:
+        print(monitor.recv())
+    except KeyboardInterrupt:
+        break