A program for displaying the light reading data for the 'Personal Flash in Real-Time' artworks. Documentation available at
https://git.abbether.net/return-to-ritherdon/rtr-docs
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92 lines
2.9 KiB
92 lines
2.9 KiB
import matplotlib.pyplot as plt |
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import matplotlib.animation as animation |
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import math |
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import requests |
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import datetime as dt |
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# Persist HTTP connection (reduce requests/second). |
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session = requests.Session() |
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# Parameters |
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x_length = 600 # No. of readings show at one time. |
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y_range = [-80, 65] # Light reading range. |
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# Figure/Graph Details |
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fig = plt.figure() |
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ax = fig.add_subplot(1, 1, 1) |
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ys1 = [0] * x_length |
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ys2 = [0] * x_length |
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ax.set_ylim(y_range) |
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line1, = ax.plot(ys1, label='factory1 (Andy)') |
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line2, = ax.plot(ys2, label='factory2 (Tony)') |
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plt.title("Personal Flash in Real-Time -- Light Meter Readings in Ritherdon") |
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plt.xlabel("<--- Oldest (Time) Latest --->") |
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plt.ylabel("Light") |
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plt.legend(loc='lower left') |
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ax.set_xticklabels(()) |
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ax.grid(b=True, linestyle='dashdot', which='major', color='grey', linewidth=0.5) |
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# Minor grid marks -- uncomment to display |
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# ax.grid(b=True, linestyle='dashdot', which='minor', color='grey', linewidth=0.5) |
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# plt.minorticks_on() |
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# Updates the line chart for factory1 |
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def animate1(i, ys): |
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try: |
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f1_request = session.get( |
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"http://ritherdon.abbether.net/api/readings/latest/1", timeout=5) |
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f1_data = f1_request.json() |
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f1_reading = f1_data.get("reading") |
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ys.append(f1_reading) |
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ys = ys1[-x_length:] |
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line1.set_ydata(ys) |
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except requests.exceptions.ConnectionError: |
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pause = 60 |
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time.sleep(60) |
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print( |
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f"[WARNING] MAX. REQUESTS EXCEEDED: Pausing requests for {pause} seconds...") |
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pass |
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except requests.exceptions.Timeout: |
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t_stamp = datetime.datetime.now() |
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print(f"[WARNING] TIMEOUT EXCEPTION: Request timed-out at {t_stamp}.") |
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time.sleep(60) |
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pass |
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except Exception as e: |
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print(f"[ERROR] GENERAL EXCEPTION: {e}") |
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finally: |
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return line1, |
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# Updates the line chart for factory2 |
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def animate2(i, ys): |
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try: |
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f2_request = session.get( |
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"http://ritherdon.abbether.net/api/readings/latest/2", timeout=5) |
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f2_data = f2_request.json() |
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f2_reading = f2_data.get("reading") |
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ys.append(f2_reading) |
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ys = ys2[-x_length:] |
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line2.set_ydata(ys) |
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except requests.exceptions.ConnectionError: |
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pause = 60 |
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time.sleep(60) |
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print( |
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f"[WARNING] MAX. REQUESTS EXCEEDED: Pausing requests for {pause} seconds...") |
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pass |
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except requests.exceptions.Timeout: |
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t_stamp = datetime.datetime.now() |
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print(f"[WARNING] TIMEOUT EXCEPTION: Request timed-out at {t_stamp}.") |
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time.sleep(60) |
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pass |
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except Exception as e: |
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print(f"[ERROR] GENERAL EXCEPTION: {e}") |
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finally: |
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return line2, |
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# Starts the animations and shows the graph (I.E. 'main') |
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ani1 = animation.FuncAnimation( |
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fig, animate1, fargs=(ys1,), interval=100, blit=False) |
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ani2 = animation.FuncAnimation( |
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fig, animate2, fargs=(ys2,), interval=100, blit=False) |
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plt.show()
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