From 77ea3554c634e03c052e7d410758e649558b37ec Mon Sep 17 00:00:00 2001
From: nilscb <nils.christian.bonnevie@gmail.com>
Date: Mon, 11 Sep 2023 08:35:02 +0200
Subject: [PATCH] fix, patch: Prevent possible Nan values if viewport has zero
 width and/or height (#1652)

- happens rarely but has been observed. Unknown reason.
---
 typescript/packages/subsurface-viewer/src/components/Map.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/typescript/packages/subsurface-viewer/src/components/Map.tsx b/typescript/packages/subsurface-viewer/src/components/Map.tsx
index aeafe5978..e99b800a3 100644
--- a/typescript/packages/subsurface-viewer/src/components/Map.tsx
+++ b/typescript/packages/subsurface-viewer/src/components/Map.tsx
@@ -1163,7 +1163,7 @@ function getViewState(
     let fb_target = [fb.x, fb.y, z];
     let fb_zoom = fb.zoom;
 
-    if (deck) {
+    if (deck && deck.width > 0 && deck.height > 0) {
         // If there are margins/rulers in the viewport (axes2DLayer) we have to account for that.
         // Camera target should be in the middle of viewport minus the rulers.
         const w_bounds = w;