[ui] changing samplerate

pyrelacs/dataio/circbuffer.py

@@ -11,10 +11,10 @@ class CircBuffer:
         self.__buffer = np.zeros(
             (channels, size), dtype=np.double
         )  # or dtype of your choice
+        self.__time = np.zeros(size, dtype=np.double)
         self.__index = [0 for i in range(channels)]
         self.__is_full = [False for i in range(channels)]
         self.__totalcount = [0 for i in range(channels)]
-        self.__time = [0.0 for i in range(channels)]
         self.__overflows = [0 for i in range(channels)]
 
     @property
@@ -42,7 +42,9 @@ class CircBuffer:
         self.__buffer[channel, self.write_index(channel)] = item
         self.__index[channel] = (self.write_index(channel) + 1) % self.__size
         self.__totalcount[channel] += 1
-        self.__time[channel] += 1 / self.__samplereate
+        self.__time[self.write_index(channel=0)] = (
+            self.__time[self.write_index(channel=0) - 1] + 1 / self.__samplereate
+        )
         if self.__index[channel] == 0:
             self.__is_full[channel] = True
             self.__overflows[channel] += 1
@@ -107,11 +109,11 @@ class CircBuffer:
             extend = self.size
         return start, extend
 
-    def get(self, index: int = -1, channel: int = 0):
+    def get(self, index: int = -1, channel: int = 0) -> Tuple[np.double, float]:
         # easy case first, we can spare the effort of further checking
         if index >= 0 and index <= self.write_index(channel):
             if self.has_value(index, channel):
-                return self.__buffer[channel, index]
+                return (self.__buffer[channel, index], self.__time[index])
             else:
                 raise IndexError(
                     f"Invalid index {index} on ring buffer for channel{channel}"
@@ -120,7 +122,7 @@ class CircBuffer:
         if index < 0:
             index = self.write_index() - 1
         if self.has_value(index, channel):
-            return self.__buffer[channel, index]
+            return (self.__buffer[channel, index], self.__time[index])
         else:
             raise IndexError(
                 f"Invalid index {index} on ring buffer for channel{channel}"

pyrelacs/dataio/sin_producer.py

@@ -32,10 +32,8 @@ class SinProducer:
         log.debug("producing Sin")
         start_time = time.time()
         t = 0
-        while time.time() - start_time < 2:
-
+        while time.time() - start_time < 20:
             s = AMPLITUDE * np.sin(2 * np.pi * FREQUENCY * t)
-
             self.buffer.append(s)
             t += 1 / self.buffer.samplerate
             time.sleep(1 / self.buffer.samplerate)

pyrelacs/ui/mainwindow.py

@@ -78,8 +78,9 @@ class PyRelacs(QMainWindow):
         widget.setLayout(layout)
         self.setCentralWidget(widget)
 
-        SAMPLERATE = 10000
-        self.buffer = CircBuffer(size=1_000_000, samplerate=SAMPLERATE)
+        SAMPLERATE = 1000
+        BUFFERSIZE = 1_000
+        self.buffer = CircBuffer(size=BUFFERSIZE, samplerate=SAMPLERATE)
         # self.connect_dac()
 
         # self.daq_producer = DaqProducer(self.buffer, self.daq_device, [1, 1])
@@ -210,7 +211,7 @@ class PyRelacs(QMainWindow):
         sinus_pro.signals.progress.connect(self.progress_fn)
         self.threadpool.start(sinus_pro)
 
-        time.sleep(0.05)
+        # time.sleep(0.05)
         self.continously_plot.plot_daq()
 
     def stop_recording(self):