From 2790d506607961cb4cf6a8a2be76cac7e0959d67 Mon Sep 17 00:00:00 2001
From: mike-000 <49240900+mike-000@users.noreply.github.com>
Date: Wed, 4 Dec 2019 23:47:12 +0000
Subject: [PATCH] Adjust for layer canvas rotation

replace missed lines
---
 examples/layer-swipe.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/examples/layer-swipe.js b/examples/layer-swipe.js
index c9e4d0bd65..5d6a20b274 100644
--- a/examples/layer-swipe.js
+++ b/examples/layer-swipe.js
@@ -34,7 +34,8 @@ const swipe = document.getElementById('swipe');
 
 aerial.on('prerender', function(event) {
   const ctx = event.context;
-  const width = ctx.canvas.width * (swipe.value / 100);
+  const mapSize = map.getSize();
+  const width = mapSize[0] * (swipe.value / 100);
   const tl = getRenderPixel(event, [width, 0]);
   const tr = getRenderPixel(event, [mapSize[0], 0]);
   const bl = getRenderPixel(event, [width, mapSize[1]]);