57 lines
1.4 KiB
Python
57 lines
1.4 KiB
Python
import matplotlib.pyplot as plt
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import numpy as np
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from msgpack.fallback import unpackb
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import requests
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import array
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import sys
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def ext_hook(code, data):
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#if code == -47:
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print("code", code)
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if code == -51:
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print("before")
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res = np.frombuffer(data, dtype=np.int16)
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print(res)
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print("after")
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return res
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else:
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print(code)
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return 'unknown ext'
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def decode(stream):
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return unpackb(stream, ext_hook=ext_hook, raw=False)
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def from_file(file_name):
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with open(file_name, 'rb') as f:
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file_contents = f.read()
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print("File size", len(file_contents))
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res = decode(file_contents)
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print(res)
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plt.plot(res['values'], 'x-')
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plt.show()
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return res
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def from_network(url="http://swimtrainer/api/session", start_index=0):
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r = requests.get("{}?startIndex={}".format(url, start_index))
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res = decode(r.content)
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print(res)
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plt.plot(res['timestamps'], res['values'], 'x-')
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plt.show()
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def analyze(data, max_size=8*1024):
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time_stamps = data['timestamps'][:max_size]
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values = data['values'][:max_size]
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time_range_seconds = (time_stamps[-1] - time_stamps[0]) / 10
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dense_time_range_seconds = max_size / 10
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print("Time range {}, dense {} [minutes]".format(time_range_seconds / 60, dense_time_range_seconds / 60))
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#from_network()
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res = from_file(sys.argv[1])
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print(res)
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#analyze(res)
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