forked from awendt/pyrelacs
68 lines
2.0 KiB
Python
68 lines
2.0 KiB
Python
import time
|
|
import pyqtgraph as pg
|
|
from IPython import embed
|
|
import numpy as np
|
|
|
|
from PyQt6.QtCore import QTimer
|
|
from pyrelacs.dataio.circbuffer import CircBuffer
|
|
from pyrelacs.util.logging import config_logging
|
|
|
|
log = config_logging()
|
|
|
|
|
|
class Continously:
|
|
def __init__(self, figure: pg.GraphicsLayoutWidget, buffer: CircBuffer):
|
|
self.figure = figure
|
|
self.buffer = buffer
|
|
|
|
def plot_daq(self, *args, **kwargs):
|
|
self.figure.setBackground("w")
|
|
self.daq_plot = self.figure.addPlot(row=0, col=0)
|
|
pen = pg.mkPen("red")
|
|
self.time = np.zeros(self.buffer.size)
|
|
self.data = np.zeros(self.buffer.size)
|
|
self.line = self.daq_plot.plot(
|
|
self.time,
|
|
self.data,
|
|
pen=pen,
|
|
# symbol="o",
|
|
)
|
|
|
|
# self.plot_index = 0
|
|
self.CHUNK_PLOT = 1_000
|
|
self.timer = QTimer()
|
|
self.timer.setInterval(200)
|
|
self.timer.timeout.connect(self.update_plot)
|
|
self.timer.start()
|
|
|
|
def update_plot(self):
|
|
log.debug(self.buffer.totalcount())
|
|
if self.buffer.totalcount() > self.CHUNK_PLOT:
|
|
log.debug(self.buffer.totalcount())
|
|
try:
|
|
times, items = self.buffer.read(
|
|
self.buffer.write_index() - self.CHUNK_PLOT, extend=self.CHUNK_PLOT
|
|
)
|
|
except IndexError as e:
|
|
items = np.zeros(self.CHUNK_PLOT)
|
|
times = np.zeros(self.CHUNK_PLOT)
|
|
log.debug("No Data Available")
|
|
log.debug(f"Index Error {e}")
|
|
|
|
# self.time = np.roll(self.time, -len(items))
|
|
# self.data = np.roll(self.data, -len(items))
|
|
#
|
|
# self.time[-len(times) :] = times
|
|
# self.data[-len(items) :] = items
|
|
|
|
self.line.setData(
|
|
times,
|
|
items,
|
|
)
|
|
# self.plot_index += len(items)
|
|
else:
|
|
pass
|
|
|
|
def stop_plotting(self):
|
|
self.timer.stop()
|