CesiumEllipsoid.h

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// Copyright 2020-2024 CesiumGS, Inc. and Contributors
 
#pragma once
 
#include "Engine/DataAsset.h"
#include "Misc/Optional.h"
#include <CesiumGeospatial/LocalHorizontalCoordinateSystem.h>
#include "CesiumEllipsoid.generated.h"
 
namespace CesiumGeospatial {
class Ellipsoid;
};
 
UCLASS()
class CESIUMRUNTIME_API UCesiumEllipsoid : public UDataAsset {
  GENERATED_BODY()
 
public:
  UFUNCTION(BlueprintCallable, Category = "Cesium|Ellipsoid")
  static UCesiumEllipsoid* Create(const FVector& Radii);
 
  UFUNCTION(BlueprintPure, Category = "Cesium|Ellipsoid")
  FVector GetRadii();
 
  void SetRadii(const FVector& NewRadii);
 
  UFUNCTION(BlueprintPure, Category = "Cesium|Ellipsoid")
  double GetMaximumRadius();
 
  UFUNCTION(BlueprintPure, Category = "Cesium|Ellipsoid")
  double GetMinimumRadius();
 
  UFUNCTION(
      BlueprintPure,
      Category = "Cesium|Ellipsoid",
      meta = (ReturnDisplayName = "SurfacePosition"))
  FVector
  ScaleToGeodeticSurface(const FVector& EarthCenteredEarthFixedPosition);
 
  UFUNCTION(
      BlueprintPure,
      Category = "Cesium|Ellipsoid",
      meta = (ReturnDisplayName = "SurfaceNormalVector"))
  FVector GeodeticSurfaceNormal(const FVector& EarthCenteredEarthFixedPosition);
 
  UFUNCTION(
      BlueprintPure,
      Category = "Cesium|Ellipsoid",
      meta = (ReturnDisplayName = "EarthCenteredEarthFixedPosition"))
  FVector LongitudeLatitudeHeightToEllipsoidCenteredEllipsoidFixed(
      const FVector& LongitudeLatitudeHeight);
 
  UFUNCTION(
      BlueprintPure,
      Category = "Cesium|Ellipsoid",
      meta = (ReturnDisplayName = "LongitudeLatitudeHeight"))
  FVector EllipsoidCenteredEllipsoidFixedToLongitudeLatitudeHeight(
      const FVector& EarthCenteredEarthFixedPosition);
 
  FMatrix EastNorthUpToEllipsoidCenteredEllipsoidFixed(
      const FVector& EarthCenteredEarthFixedPosition);
 
  CesiumGeospatial::LocalHorizontalCoordinateSystem
  CreateCoordinateSystem(const FVector& Center, double Scale);
 
  const CesiumGeospatial::Ellipsoid& GetNativeEllipsoid();
 
protected:
  UPROPERTY(
      EditAnywhere,
      Category = "Cesium|Ellipsoid",
      meta = (DisplayName = "Radii"))
  FVector Radii;
 
private:
#if WITH_EDITOR
  virtual void
  PostSaveRoot(FObjectPostSaveRootContext ObjectSaveContext) override;
#endif
 
  TOptional<CesiumGeospatial::Ellipsoid> NativeEllipsoid;
};