From 9305ee4596c1ba64be3203ed9d131e730d3fb4c7 Mon Sep 17 00:00:00 2001
From: David Mayes <dfmayes@gmail.com>
Date: Sun, 7 Aug 2022 15:41:26 -0700
Subject: [PATCH] Fix animation by clearing matrix canvas every frame

---
 examples-api-use/image-example.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/examples-api-use/image-example.cc b/examples-api-use/image-example.cc
index 8788e78a6..09042b294 100644
--- a/examples-api-use/image-example.cc
+++ b/examples-api-use/image-example.cc
@@ -102,6 +102,7 @@ void ShowAnimatedImage(const ImageVector &images, RGBMatrix *matrix) {
   while (!interrupt_received) {
     for (const auto &image : images) {
       if (interrupt_received) break;
+      offscreen_canvas->Clear();
       CopyImageToCanvas(image, offscreen_canvas);
       offscreen_canvas = matrix->SwapOnVSync(offscreen_canvas);
       usleep(image.animationDelay() * 10000);  // 1/100s converted to usec