fixing overflow plot limits

Author: jposada202020

.readthedocs.yaml

@@ -1,19 +1,15 @@
-# SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
+# SPDX-FileCopyrightText: 2023 Jose D. Montoya
 #
 # SPDX-License-Identifier: Unlicense
 
-# Read the Docs configuration file
-# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
-
-# Required
 version: 2
 
 build:
-  os: ubuntu-20.04
+  os: ubuntu-22.04
   tools:
     python: "3"
 
 python:
   install:
     - requirements: docs/requirements.txt
-    - requirements: requirements.txt
+    - requirements: requirements.txt

circuitpython_uplot/uplot.py

@@ -102,9 +102,9 @@ def __init__(
 
         self.padding = padding
         self._newxmin = padding
-        self._newxmax = width - padding
+        self._newxmax = width - padding - 1
 
-        self._newymin = height - padding
+        self._newymin = height - padding - 1
         self._newymax = padding
 
         self._cartesianfirst = True
@@ -127,7 +127,7 @@ def __init__(
 
         self._index_colorused = 4
 
-        self._plotbitmap = displayio.Bitmap(width, height, 17)
+        self._plotbitmap = displayio.Bitmap(width, height, 20)
 
         if show_box:
             self._drawbox()
@@ -186,40 +186,44 @@ def _drawbox(self) -> None:
         else:
             draw_box = [True, True, True, True]
 
+        # left y axes line
         if draw_box[0]:
             # y axes line
             draw_line(
                 self._plotbitmap,
                 self.padding,
                 self.padding,
                 self.padding,
-                self._height - self.padding,
+                self._height - self.padding - 1,
                 1,
             )
+        # bottom x axes line
         if draw_box[1]:
             draw_line(
                 self._plotbitmap,
                 self.padding,
-                self._height - self.padding,
-                self._width - self.padding,
-                self._height - self.padding,
+                self._height - self.padding - 1,
+                self._width - self.padding - 1,
+                self._height - self.padding - 1,
                 1,
             )
+        # right y axes line
         if draw_box[2]:
             draw_line(
                 self._plotbitmap,
-                self._width - self.padding,
+                self._width - self.padding - 1,
                 self.padding,
-                self._width - self.padding,
-                self._height - self.padding,
+                self._width - self.padding - 1,
+                self._height - self.padding - 1,
                 1,
             )
+        # top x axes line
         if draw_box[3]:
             draw_line(
                 self._plotbitmap,
                 self.padding,
                 self.padding,
-                self._width - self.padding,
+                self._width - self.padding - 1,
                 self.padding,
                 1,
             )

optional_requirements.txt

@@ -1,3 +1,3 @@
-# SPDX-FileCopyrightText: 2022 Alec Delaney, for Adafruit Industries
+# SPDX-FileCopyrightText: 2023 Jose D. Montoya
 #
 # SPDX-License-Identifier: Unlicense