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e-Paper/RaspberryPi_JetsonNano/python/examples/epd_13in3b_test.py

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+#!/usr/bin/python
+# -*- coding:utf-8 -*-
+import sys
+import os
+picdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'pic')
+libdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'lib')
+if os.path.exists(libdir):
+    sys.path.append(libdir)
+
+import logging
+from waveshare_epd import epd13in3b
+import time
+from PIL import Image,ImageDraw,ImageFont
+import traceback
+
+logging.basicConfig(level=logging.DEBUG)
+
+try:
+    logging.info("epd13in3k Demo")
+    epd = epd13in3b.EPD()
+    
+    logging.info("init and Clear")
+    epd.init()
+    epd.Clear()
+
+    font24 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 24)
+    font18 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 18)
+    font35 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 35)
+
+    logging.info("2.read bmp file")
+    HBlackimage = Image.open(os.path.join(picdir, '13in3b_r.bmp')) 
+    HRedimage = Image.open(os.path.join(picdir, '13in3b_b.bmp'))
+    epd.display(epd.getbuffer(HBlackimage), epd.getbuffer(HRedimage))
+    time.sleep(2)
+
+    # Drawing on the Horizontal image
+    logging.info("3.Drawing on the Horizontal image...")
+    HBlackimage = Image.new('1', (epd.width, epd.height), 255)  
+    HRedimage = Image.new('1', (epd.width, epd.height), 255) 
+    drawblack = ImageDraw.Draw(HBlackimage)
+    drawred = ImageDraw.Draw(HRedimage)
+    drawblack.text((10, 0), 'hello world', font = font24, fill = 0)
+    drawred.text((10, 20), '13.3inch e-Paper (B)', font = font24, fill = 0)
+    drawblack.text((150, 0), u'微雪电子', font = font24, fill = 0)
+    drawred.line((20, 50, 70, 100), fill = 0)
+    drawblack.line((70, 50, 20, 100), fill = 0)
+    drawred.rectangle((20, 50, 70, 100), outline = 0)
+    drawblack.line((165, 50, 165, 100), fill = 0)
+    drawred.line((140, 75, 190, 75), fill = 0)
+    drawblack.arc((140, 50, 190, 100), 0, 360, fill = 0)
+    drawred.rectangle((80, 50, 130, 100), fill = 0)
+    drawblack.chord((200, 50, 250, 100), 0, 360, fill = 0)
+    epd.display_Base(epd.getbuffer(HBlackimage), epd.getbuffer(HRedimage))
+    time.sleep(2)
+
+    # partial update
+    logging.info("4.show time")
+    '''
+    # If you didn't use the epd.display_Base() function to refresh the image before,
+    # use the epd.Clear_Base() function to refresh the background color, 
+    # otherwise the background color will be garbled 
+    '''
+    # epd.Clear_Base()
+    # Himage = Image.new('1', (epd.height ,epd.width), 0xff)
+    # draw = ImageDraw.Draw(time_image)
+    num = 0
+    while (True):
+        drawblack.rectangle((0, 110, 120, 150), fill = 255)
+        drawblack.text((10, 120), time.strftime('%H:%M:%S'), font = font24, fill = 0)
+        epd.display_Partial(epd.getbuffer(HBlackimage),0, 110, 120, 160)
+        num = num + 1
+        if(num == 10):
+            break
+
+    logging.info("Clear...")
+    epd.init()
+    epd.Clear()
+
+    logging.info("Goto Sleep...")
+    epd.sleep()
+    
+except IOError as e:
+    logging.info(e)
+    
+except KeyboardInterrupt:    
+    logging.info("ctrl + c:")
+    epd13in3b.epdconfig.module_exit(cleanup=True)
+    exit()