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rpi-rgb-led-matrix-master/bindings/python/samples/image-draw.py

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+#!/usr/bin/env python
+
+# (This is an example similar to an example from the Adafruit fork
+#  to show the similarities. Most important difference currently is, that
+#  this library wants RGB mode.)
+#
+# A more complex RGBMatrix example works with the Python Imaging Library,
+# demonstrating a few graphics primitives and image loading.
+# Note that PIL graphics do not have an immediate effect on the display --
+# image is drawn into a separate buffer, which is then copied to the matrix
+# using the SetImage() function (see examples below).
+# Requires rgbmatrix.so present in the same directory.
+
+# PIL Image module (create or load images) is explained here:
+# http://effbot.org/imagingbook/image.htm
+# PIL ImageDraw module (draw shapes to images) explained here:
+# http://effbot.org/imagingbook/imagedraw.htm
+
+from PIL import Image
+from PIL import ImageDraw
+import time
+from rgbmatrix import RGBMatrix, RGBMatrixOptions
+
+# Configuration for the matrix
+options = RGBMatrixOptions()
+options.rows = 32
+options.chain_length = 1
+options.parallel = 1
+options.hardware_mapping = 'regular'  # If you have an Adafruit HAT: 'adafruit-hat'
+
+matrix = RGBMatrix(options = options)
+
+# RGB example w/graphics prims.
+# Note, only "RGB" mode is supported currently.
+image = Image.new("RGB", (32, 32))  # Can be larger than matrix if wanted!!
+draw = ImageDraw.Draw(image)  # Declare Draw instance before prims
+# Draw some shapes into image (no immediate effect on matrix)...
+draw.rectangle((0, 0, 31, 31), fill=(0, 0, 0), outline=(0, 0, 255))
+draw.line((0, 0, 31, 31), fill=(255, 0, 0))
+draw.line((0, 31, 31, 0), fill=(0, 255, 0))
+
+# Then scroll image across matrix...
+for n in range(-32, 33):  # Start off top-left, move off bottom-right
+    matrix.Clear()
+    matrix.SetImage(image, n, n)
+    time.sleep(0.05)
+
+matrix.Clear()