117 lines
3.7 KiB
Python
117 lines
3.7 KiB
Python
import asyncio
|
|
import os
|
|
import sys
|
|
import logging
|
|
|
|
import numpy as np
|
|
from quamash import QEventLoop, QtWidgets, QtCore
|
|
import pyqtgraph as pg
|
|
from sipyco.pipe_ipc import AsyncioChildComm
|
|
from sipyco import pyon
|
|
|
|
|
|
class SpectrogramItem(pg.ImageItem):
|
|
def __init__(self, freq_sample, freq_base, block_size):
|
|
pg.ImageItem.__init__(self)
|
|
|
|
depth = 100
|
|
self.img_array = np.zeros((depth, block_size))
|
|
|
|
self.setImage(self.img_array, autoLevels=True)
|
|
|
|
pos = np.array([0., 1., 0.5, 0.25, 0.75])
|
|
color = np.array([[0,255,255,255], [255,255,0,255], [0,0,0,255], (0, 0, 255, 255), (255, 0, 0, 255)], dtype=np.ubyte)
|
|
cmap = pg.ColorMap(pos, color)
|
|
lut = cmap.getLookupTable(0.0, 1.0, 256)
|
|
self.setLookupTable(lut)
|
|
|
|
self.setRect(QtCore.QRectF(0.0, (freq_base-freq_sample/2)/1e6, float(depth), freq_sample/1e6))
|
|
|
|
def add_block(self, block):
|
|
self.img_array = np.roll(self.img_array, -1, 0)
|
|
self.img_array[-1:] = np.fft.fftshift(block)
|
|
self.setImage(self.img_array, autoLevels=True)
|
|
|
|
|
|
class MainWindow(pg.GraphicsLayoutWidget):
|
|
def __init__(self, freq_sample, freq_base, block_size):
|
|
pg.GraphicsLayoutWidget.__init__(self)
|
|
self.setWindowTitle("NOPTICA Wavemeter")
|
|
|
|
self.freq_sample = freq_sample
|
|
self.freq_base = freq_base
|
|
|
|
self.text_ref = pg.LabelItem(size="24pt")
|
|
self.addItem(self.text_ref, row=0, col=0)
|
|
self.text_locked = pg.LabelItem(size="24pt")
|
|
self.addItem(self.text_locked, row=0, col=1)
|
|
self.update_params(None, False)
|
|
|
|
p1 = self.addPlot(row=1, col=0, colspan=2)
|
|
self.beat_spectrum = SpectrogramItem(freq_sample, freq_base, block_size)
|
|
p1.addItem(self.beat_spectrum)
|
|
|
|
def update_params(self, peak_freq, locked):
|
|
if peak_freq is None:
|
|
self.text_ref.setText("REF: NO SIGNAL")
|
|
else:
|
|
self.text_ref.setText("REF: {:.3f}MHz".format((self.freq_base + peak_freq)/1e6))
|
|
if locked:
|
|
self.text_locked.setText("REF LASER LOCKED", color="00FF00")
|
|
else:
|
|
self.text_locked.setText("REF LASER UNLOCKED", color="FF0000")
|
|
|
|
|
|
|
|
class IPCClient(AsyncioChildComm):
|
|
def set_close_cb(self, close_cb):
|
|
self.close_cb = close_cb
|
|
|
|
async def read_pyon(self):
|
|
line = await self.readline()
|
|
return pyon.decode(line.decode())
|
|
|
|
async def listen(self, main_window):
|
|
while True:
|
|
obj = await self.read_pyon()
|
|
try:
|
|
action = obj["action"]
|
|
if action == "update_beat_spectrum":
|
|
main_window.beat_spectrum.add_block(obj["block"])
|
|
main_window.update_params(obj["peak_freq"], obj["locked"])
|
|
if action == "terminate":
|
|
self.close_cb()
|
|
return
|
|
except:
|
|
logging.error("error processing parent message",
|
|
exc_info=True)
|
|
self.close_cb()
|
|
|
|
|
|
def main():
|
|
freq_sample = float(sys.argv[1])
|
|
freq_base = float(sys.argv[2])
|
|
block_size = int(sys.argv[3])
|
|
|
|
app = QtWidgets.QApplication([])
|
|
loop = QEventLoop(app)
|
|
asyncio.set_event_loop(loop)
|
|
|
|
try:
|
|
ipc = IPCClient(os.getenv("NOPTICA2_IPC"))
|
|
loop.run_until_complete(ipc.connect())
|
|
try:
|
|
main_window = MainWindow(freq_sample, freq_base, block_size)
|
|
main_window.show()
|
|
ipc.set_close_cb(main_window.close)
|
|
asyncio.ensure_future(ipc.listen(main_window))
|
|
loop.run_forever()
|
|
finally:
|
|
ipc.close()
|
|
finally:
|
|
loop.close()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|