From de3f60861d2349751befa9995c0a896091306b73 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maximilian=20Kr=C3=B6g?= <maxi_kroeg@web.de>
Date: Wed, 10 Feb 2021 00:15:43 +0100
Subject: [PATCH] Fix hitdetection of icons with opacity < 1

Hit detection works by reading the pixel color, if the icon is not drawn
with full opacity it won't work.
---
 src/ol/render/canvas/hitdetect.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ol/render/canvas/hitdetect.js b/src/ol/render/canvas/hitdetect.js
index c907a736ed..0efda29a36 100644
--- a/src/ol/render/canvas/hitdetect.js
+++ b/src/ol/render/canvas/hitdetect.js
@@ -81,7 +81,7 @@ export function createHitDetectionImageData(
       }
       style.setText(undefined);
       const image = originalStyle.getImage();
-      if (image) {
+      if (image && image.getOpacity() !== 0) {
         const imgSize = image.getImageSize();
         if (!imgSize) {
           continue;
@@ -106,8 +106,8 @@ export function createHitDetectionImageData(
             anchorXUnits: IconAnchorUnits.PIXELS,
             anchorYUnits: IconAnchorUnits.PIXELS,
             offset: image.getOrigin(),
+            opacity: 1,
             size: image.getSize(),
-            opacity: image.getOpacity(),
             scale: image.getScale(),
             rotation: image.getRotation(),
             rotateWithView: image.getRotateWithView(),