From c9f08b43adbab9a6843c8bfae7c7f9afdec133d0 Mon Sep 17 00:00:00 2001
From: David Feinzimer <dfeinzimer@esri.com>
Date: Thu, 25 Jul 2024 15:31:51 -0700
Subject: [PATCH] Guard against NaN `unitsPerPoint`

Issue ref #802
---
 .../ArcGISToolkit/Components/Scalebar/ScalebarViewModel.swift | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Sources/ArcGISToolkit/Components/Scalebar/ScalebarViewModel.swift b/Sources/ArcGISToolkit/Components/Scalebar/ScalebarViewModel.swift
index 8e35e5a10..c3ec6f80f 100644
--- a/Sources/ArcGISToolkit/Components/Scalebar/ScalebarViewModel.swift
+++ b/Sources/ArcGISToolkit/Components/Scalebar/ScalebarViewModel.swift
@@ -240,7 +240,9 @@ final class ScalebarViewModel: ObservableObject {
     /// per point and spatial reference values.
     func updateScale() {
         guard let spatialReference, let unitsPerPoint, let viewpoint,
-              minScale <= 0 || viewpoint.targetScale < minScale else {
+              minScale <= 0 || viewpoint.targetScale < minScale,
+              !unitsPerPoint.isNaN
+        else {
             return
         }