single repo

Pico_ePaper_Code/pythonNanoGui/demos/ePaper2in9_test_sync.py

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+# ePaper2in9_test_sync.py Demo of synchronous code on 2.9" EPD display
+
+# Released under the MIT License (MIT). See LICENSE.
+# Copyright (c) 2020 Peter Hinch
+
+# color_setup must set landcsape True, asyn False and must not set demo_mode
+
+from math import pi, sin
+from color_setup import ssd
+from gui.core.writer import Writer
+from gui.core.nanogui import refresh
+from gui.core.fplot import CartesianGraph, Curve
+from gui.widgets.meter import Meter
+from gui.widgets.label import Label
+from gui.widgets.dial import Dial, Pointer
+
+# Fonts
+import gui.fonts.arial10 as arial10
+import gui.fonts.freesans20 as large
+
+wri = Writer(ssd, arial10, verbose=False)
+wri.set_clip(False, False, False)
+
+wri_large = Writer(ssd, large, verbose=False)
+wri_large.set_clip(False, False, False)
+
+# 296*128
+def graph():
+    row, col, ht, wd = 5, 140, 75, 150
+    def populate():
+        x = -0.998
+        while x < 1.01:
+            z = 6 * pi * x
+            y = sin(z) / z
+            yield x, y
+            x += 0.05
+
+    g = CartesianGraph(wri, row, col, height = ht, width = wd, bdcolor=False)
+    curve2 = Curve(g, None, populate())
+    Label(wri, row + ht + 5, col - 10, '-2.0  t: secs')
+    Label(wri, row + ht + 5, col - 8 + int(wd//2), '0.0')
+    Label(wri, row + ht + 5, col - 10 + wd, '2.0')
+
+def compass():
+    dial = Dial(wri, 5, 5, height = 75, ticks = 12, bdcolor=None,
+            label='Direction', style = Dial.COMPASS)
+    ptr = Pointer(dial)
+    ptr.value(1 + 1j)
+
+def meter():
+    m = Meter(wri, 5, 100, height = 75, divisions = 4,
+             label='Peak', style=Meter.BAR, legends=('0', '50', '100'))
+    m.value(0.72)
+
+def labels():
+    row = 100
+    col = 0
+    Label(wri_large, row, col, 'Seismograph')
+    col = 140
+    Label(wri, row, col + 0, 'Event time')
+    Label(wri, row, col + 60, '01:35', bdcolor=None)
+    Label(wri, row, col + 95, 'UTC')
+    row = 115
+    Label(wri, row, col + 0, 'Event date')
+    Label(wri, row, col + 60, '6th Jan 2021', bdcolor=None)
+    
+def main():
+    refresh(ssd, True)
+    graph()
+    compass()
+    meter()
+    labels()
+    ssd.wait_until_ready()
+    refresh(ssd)
+    print('Waiting for display update')
+    ssd.wait_until_ready()
+
+main()
+