Improvements from review.

Source/CesiumRuntime/Private/CesiumGeoreference.cpp

@@ -38,6 +38,8 @@
 #include "Slate/SceneViewport.h"
 #endif
 
+/*static*/ const double ACesiumGeoreference::kMinimumScale = 1.0e-6;
+
 /*static*/ ACesiumGeoreference*
 ACesiumGeoreference::GetDefaultGeoreference(const UObject* WorldContextObject) {
   UWorld* world = WorldContextObject->GetWorld();
@@ -177,8 +179,8 @@ void ACesiumGeoreference::SetOriginHeight(double NewValue) {
 double ACesiumGeoreference::GetScale() const { return this->Scale; }
 
 void ACesiumGeoreference::SetScale(double NewValue) {
-  if (NewValue < 1e-6) {
-    this->Scale = 1e-6;
+  if (NewValue < ACesiumGeoreference::kMinimumScale) {
+    this->Scale = ACesiumGeoreference::kMinimumScale;
   } else {
     this->Scale = NewValue;
   }

Source/CesiumRuntime/Public/CesiumGeoreference.h

@@ -36,6 +36,11 @@ UCLASS()
 class CESIUMRUNTIME_API ACesiumGeoreference : public AActor {
   GENERATED_BODY()
 public:
+  /**
+   * The minimum allowed value for the Scale property, 1e-6.
+   */
+  static const double kMinimumScale;
+
   /**
    * Finds and returns the actor labeled `CesiumGeoreferenceDefault` in the
    * persistent level of the calling object's world. If not found, it creates a
@@ -681,12 +686,6 @@ class CESIUMRUNTIME_API ACesiumGeoreference : public AActor {
 public:
   ACesiumGeoreference();
 
-  /**
-   * Recomputes all world georeference transforms. Usually there is no need to
-   * explicitly call this from external code.
-   */
-  void UpdateGeoreference();
-
   /**
    * Returns the GeoTransforms that offers the same conversion
    * functions as this class, but performs the computations
@@ -697,6 +696,11 @@ class CESIUMRUNTIME_API ACesiumGeoreference : public AActor {
   }
 
 private:
+  /**
+   * Recomputes all world georeference transforms.
+   */
+  void UpdateGeoreference();
+
   /**
    * A tag that is assigned to Georeferences when they are created
    * as the "default" Georeference for a certain world.