From 900adaaffb51aa975d25a1c7bf3010f0248e01fa Mon Sep 17 00:00:00 2001
From: Vincent Lecrubier <vincent.lecrubier@gmail.com>
Date: Wed, 20 Feb 2019 22:40:24 +0000
Subject: [PATCH] Update Zoomify.js

---
 src/ol/source/Zoomify.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/ol/source/Zoomify.js b/src/ol/source/Zoomify.js
index 1b7a192e67..cab8374540 100644
--- a/src/ol/source/Zoomify.js
+++ b/src/ol/source/Zoomify.js
@@ -87,6 +87,7 @@ export class CustomTile extends ImageTile {
  * you must provide a `crossOrigin` value  you want to access pixel data with the Canvas renderer.
  * See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.
  * @property {import("../proj.js").ProjectionLike} [projection] Projection.
+ * @property {number} [tilePixelRatio] The pixel ratio used by the tile service. For example, if the tile service advertizes 256px by 256px tiles but actually sends 512px by 512px images (for retina/hidpi devices) then `tilePixelRatio` should be set to `2`
  * @property {number} [reprojectionErrorThreshold=0.5] Maximum allowed reprojection error (in pixels).
  * Higher values can increase reprojection performance, but decrease precision.
  * @property {string} [url] URL template or base URL of the Zoomify service.