From 387ad0f376d3e46bc1ed9926c4f8a107f3add810 Mon Sep 17 00:00:00 2001
From: Erik Ziegler <erik.sweed@gmail.com>
Date: Fri, 24 Jun 2022 17:20:50 +0200
Subject: [PATCH] fix: Handle cases where row and column cosines are missing

---
 packages/core/src/RenderingEngine/StackViewport.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/core/src/RenderingEngine/StackViewport.ts b/packages/core/src/RenderingEngine/StackViewport.ts
index 59f92773e1..670c541aca 100644
--- a/packages/core/src/RenderingEngine/StackViewport.ts
+++ b/packages/core/src/RenderingEngine/StackViewport.ts
@@ -1307,6 +1307,8 @@ class StackViewport extends Viewport implements IStackViewport {
       ySpacing !== image.columnPixelSpacing ||
       xVoxels !== image.columns ||
       yVoxels !== image.rows ||
+      !imagePlaneModule.rowCosines ||
+      !imagePlaneModule.columnCosines ||
       !isEqual(imagePlaneModule.rowCosines, <Point3>rowCosines) ||
       !isEqual(imagePlaneModule.columnCosines, <Point3>columnCosines)
     ) {