adding logging animation example

Author: jposada202020

circuitpython_uplot/ulogging.py

@@ -18,6 +18,7 @@
     from circuitpython_uplot.uplot import Uplot
 except ImportError:
     pass
+import math
 from bitmaptools import draw_line, fill_region
 from ulab import numpy as np
 
@@ -112,9 +113,7 @@ def _draw_ticks(self, plot) -> None:
                 2,
             )
             if plot._showtext:
-                plot.show_text(
-                    "{:.2f}".format(ticksxnorm[i]), tick, plot._newymin, (0.5, 0.0)
-                )
+                plot.show_text(f"{self.ticksx[i]:.0f}", tick, plot._newymin, (0.5, 0.0))
         for i, tick in enumerate(ticksynorm):
             draw_line(
                 plot._plotbitmap,
@@ -125,9 +124,7 @@ def _draw_ticks(self, plot) -> None:
                 2,
             )
             if plot._showtext:
-                plot.show_text(
-                    "{:.2f}".format(ticksynorm[i]), plot._newxmin, tick, (1.0, 0.5)
-                )
+                plot.show_text(f"{self.ticksy[i]:.0f}", plot._newxmin, tick, (1.0, 0.5))
 
     @staticmethod
     def clear_plot(plot) -> None:

docs/examples.rst

@@ -271,6 +271,15 @@ This example shows how to add a data table to the plot
 .. image:: ../docs/logging_table.jpg
 
 
+Logging Animation Example
+---------------------------------------
+
+This example shows how to animate a plot
+
+.. literalinclude:: ../examples/uplot_ulogging_animation.py
+    :caption: examples/uplot_ulogging_animation.py
+    :lines: 5-
+
 SVG Images examples
 ---------------------------
 

examples/uplot_ulogging_animation.py

@@ -0,0 +1,90 @@
+# SPDX-FileCopyrightText: Copyright (c) Jose D. Montoya
+#
+# SPDX-License-Identifier: MIT
+
+
+import time
+import random
+import board
+from circuitpython_uplot.uplot import Uplot, color
+from circuitpython_uplot.ulogging import ulogging
+
+# Setting up the display
+display = board.DISPLAY
+display.auto_refresh = False
+
+# Drawing the graph
+my_plot = Uplot(
+    140,
+    60,
+    200,
+    200,
+    padding=1,
+    show_box=True,
+    box_color=color.WHITE,
+)
+
+# Setting the tick parameters
+my_plot.tick_params(
+    tickx_height=4,
+    ticky_height=4,
+    show_ticks=True,
+    tickcolor=color.TEAL,
+    showtext=True,
+)
+
+# Creating the x and y data
+x = [
+    10,
+    20,
+    30,
+    40,
+    50,
+    60,
+    70,
+    80,
+    90,
+    100,
+    110,
+    120,
+    130,
+    140,
+    150,
+    160,
+    170,
+    180,
+    190,
+]
+y = [26, 22, 24, 30, 28, 35, 26, 25, 24, 23, 20, 27, 26, 33, 24, 23, 19, 27, 26]
+
+# Creating the random numbers
+random_numbers = [19, 22, 35, 33, 24, 26, 28, 37]
+
+
+display.show(my_plot)
+display.refresh()
+
+dist = 1
+
+# Creating the loggraph
+my_loggraph = ulogging(
+    my_plot,
+    x[0:dist],
+    y[0:dist],
+    rangex=[0, 210],
+    rangey=[0, 110],
+    line_color=color.BLUE,
+    ticksx=[25, 50, 75, 100, 125, 150, 175, 200],
+    ticksy=[25, 50, 75, 100],
+)
+
+# Showing the loggraph
+while True:
+    if dist > len(x):
+        y.pop(0)
+        y.append(random.choice(random_numbers))
+
+    my_loggraph.draw_points(my_plot, x[0:dist], y[0:dist])
+    display.refresh()
+    dist += 1
+    time.sleep(0.5)