Plot3D.cpp 6.7 KB
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// Fill out your copyright notice in the Description page of Project Settings.

#include "Plot3D.h"
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#include "HDF5Library.h"
#include "PointCloudComponent.h"
#include "Runtime/Engine/Classes/Kismet/KismetMathLibrary.h"
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// Sets default values
APlot3D::APlot3D()
{
	PrimaryActorTick.bCanEverTick = true;
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	USceneComponent* SceneComponent = CreateDefaultSubobject<USceneComponent>(TEXT("RootComponent"));
	RootComponent = SceneComponent;
	SceneComponent->SetMobility(EComponentMobility::Movable);
	PointCloudComponent = CreateDefaultSubobject<UPointCloudComponent>(TEXT("PointCloudComponent"));
	PointCloudComponent->SetupAttachment(RootComponent);
	PointCloudComponent->bCastVolumetricTranslucentShadow = true;
	PointCloudComponent->bCastShadowAsTwoSided = true;
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}

// Called when the game starts or when spawned
void APlot3D::BeginPlay()
{
	Super::BeginPlay();
	InitPoints();
	InitCloud();
}

void APlot3D::InitPoints()
{
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	TArray<float> X;
	TArray<float> Y;
	TArray<float> Z;

	UHDF5Library::ImportData(X, Y, Z, U, V, W);

	int32 Num;
	if (OverridePointCount)
	{
		Num = PointCount;
	}
	else
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	{
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		Num = X.Num();
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	}
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	for (int32 i = 0; i < Num; i++)
	{
		Length.Emplace(FVector(U[i], V[i], W[i]).Size());
	}

	int32 MaxIndex, MinIndex;
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	UKismetMathLibrary::MaxOfFloatArray(Length, MaxIndex, MaxLength);
	UKismetMathLibrary::MinOfFloatArray(Length, MinIndex, MinLength);
	UKismetMathLibrary::MaxOfFloatArray(X, MaxIndex, MaxX);
	UKismetMathLibrary::MinOfFloatArray(X, MinIndex, MinX);
	UKismetMathLibrary::MaxOfFloatArray(Y, MaxIndex, MaxY);
	UKismetMathLibrary::MinOfFloatArray(Y, MinIndex, MinY);
	UKismetMathLibrary::MaxOfFloatArray(Z, MaxIndex, MaxZ);
	UKismetMathLibrary::MinOfFloatArray(Z, MinIndex, MinZ);
	UKismetMathLibrary::MaxOfFloatArray(U, MaxIndex, MaxU);
	UKismetMathLibrary::MinOfFloatArray(U, MinIndex, MinU);
	UKismetMathLibrary::MaxOfFloatArray(V, MaxIndex, MaxV);
	UKismetMathLibrary::MinOfFloatArray(V, MinIndex, MinV);
	UKismetMathLibrary::MaxOfFloatArray(W, MaxIndex, MaxW);
	UKismetMathLibrary::MinOfFloatArray(W, MinIndex, MinW);
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	for (int32 i = 0; i < Num; i++)
	{
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		FColor Color = CalculateColorOfPoint(i, MaxLength, MinLength);
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		Points.Emplace(FVector(X[i], Y[i], Z[i]), Color, true);
	}
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}

void APlot3D::InitCloud()
{
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	PointCloud = NewObject<UPointCloud>();
	PointCloud->Offset = EPointCloudOffset::None;
	PointCloud->SetRenderingMethod(EPointCloudRenderMethod::Sprite_Lit_RGB, false);
	PointCloud->SpriteMask = EPointCloudSpriteMask::Circle;
	//PointCloud->SpriteTexture = 
	PointCloud->ColorOverride = EPointCloudColorOverride::None;
	PointCloud->SpriteSize = FVector2D(0.5, 0.5);

	GetPointCloudComponent()->SetPointCloud(PointCloud);
	RebuildCloud();
}

FColor APlot3D::CalculateColorOfPoint(int32 Index, float Min, float Max)
{
	float NormalizedValue = UKismetMathLibrary::NormalizeToRange(Length[Index], Min, Max);
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	check(TransferFunction != nullptr);
	FVector ColorVec = TransferFunction->GetVectorValue(NormalizedValue);
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	FColor Color = FColor((uint8)(ColorVec.X * 255), (uint8)(ColorVec.Y * 255), (uint8)(ColorVec.Z * 255));
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	return Color;
}
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void APlot3D::RebuildCloud()
{
	PointCloud->SetPointCloudData(Points, true);
}
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FVector APlot3D::CalculateWorldLocOfPoint(FPointCloudPoint * Point)
{
	FVector ActorScale = GetActorScale3D() * 100;
	FVector Vec = FVector(ActorScale.X * Point->Location.X * -1, ActorScale.Y * Point->Location.Y, ActorScale.Z * Point->Location.Z);
	FVector RotatedVec = GetActorRotation().RotateVector(Vec);
	FVector SumVec = GetActorLocation() + RotatedVec;
	return SumVec;
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}

// Called every frame
void APlot3D::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

}

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void APlot3D::BrushPoints(TArray<int32> BrushPoints, bool Add, bool Rebuild)
{
	for (int i = 0; i < BrushPoints.Num(); ++i)
	{
		BrushPoint(BrushPoints[i], Add);
	}

	if (Rebuild)
	{
		RebuildCloud();
	}
}

void APlot3D::BrushPoint(int32 PointIndex, bool Add)
{
	Points[PointIndex].SetEnabled(!Add);

	/*
	if (Add)
	{
		Points[PointIndex].Color = FColor();
	}
	else
	{
		Points[PointIndex].Color = Points[PointIndex].OriginalColor;
	}
	*/
}

void APlot3D::ResetPoints(bool Rebuild)
{
	for (int i = 0; i < Points.Num(); ++i)
	{
		BrushPoint(i, false);
	}

	if (Rebuild)
	{
		RebuildCloud();
	}
}

void APlot3D::InvertPoints(bool Rebuild)
{
	for (int i = 0; i < Points.Num(); ++i)
	{
		BrushPoint(i, Points[i].IsEnabled());
	}

	if (Rebuild)
	{
		RebuildCloud();
	}
}

void APlot3D::AddFilter_Planes(FVector NormalRight, FVector LocationRight, bool UseTwoPlanes, FVector NormalLeft, FVector LocationLeft, bool Add, bool Rebuild, bool Invert)
{
	TArray<int32> Indexes = TArray<int32>();

	for (int i = 0; i < Points.Num(); ++i)
	{
		FVector WorldLoc = CalculateWorldLocOfPoint(&Points[i]);
		FVector DifferenceRight = WorldLoc - LocationRight;
		FVector DifferenceLeft = WorldLoc - LocationLeft;
		float DotRight = UKismetMathLibrary::Dot_VectorVector(DifferenceRight, NormalRight);
		float DotLeft = UKismetMathLibrary::Dot_VectorVector(DifferenceLeft, NormalLeft);

		if (Invert)
		{
			if (DotRight >= 0.f && (DotLeft >= 0.f || !UseTwoPlanes))
			{
				Indexes.Emplace(i);
			}
		}
		else
		{
			if (DotRight <= 0.f && (DotLeft <= 0.f || !UseTwoPlanes))
			{
				Indexes.Emplace(i);
			}
		}
	}

	BrushPoints(Indexes, Add, Rebuild);
}

void APlot3D::AddFilter_ValueRange(EAxisType XType, float XMin, float XMax, EAxisType YType, float YMin, float YMax, bool Add, bool Rebuild)
{
	float XValue, YValue;
	TArray<int32> Indexes = TArray<int32>();

	for (int i = 0; i < Points.Num(); ++i)
	{
		switch (XType)
		{
		case EAxisType::X:
			XValue = Points[i].Location.X;
			break;
		case EAxisType::Y:
			XValue = Points[i].Location.Y;
			break;
		case EAxisType::Z:
			XValue = Points[i].Location.Z;
			break;
		default:
			break;
		}

		switch (YType)
		{
		case EAxisType::U:
			YValue = U[i];
			break;
		case EAxisType::V:
			YValue = V[i];
			break;
		case EAxisType::W:
			YValue = W[i];
			break;
		default:
			break;
		}

		if (XValue >= XMin && XValue <= XMax && YValue >= YMin && YValue <= YMax)
		{
			Indexes.Emplace(i);
		}
	}

	BrushPoints(Indexes, Add, Rebuild);
}

void APlot3D::AddFilter_Box(FTransform Transform, FVector Extent, bool Add, bool Rebuild)
{
	TArray<int32> Indexes = TArray<int32>();

	for (int i = 0; i < Points.Num(); ++i)
	{
		FVector WorldLoc = CalculateWorldLocOfPoint(&Points[i]);
		if (UKismetMathLibrary::IsPointInBoxWithTransform(WorldLoc, Transform, Extent))
		{
			Indexes.Emplace(i);
		}
	}

	BrushPoints(Indexes, Add, Rebuild);
}

void APlot3D::AddFilter_Sphere(FVector Location, float Radius, bool Add, bool Rebuild)
{
	TArray<int32> Indexes = TArray<int32>();

	for (int i = 0; i < Points.Num(); ++i)
	{
		FVector WorldLoc = CalculateWorldLocOfPoint(&Points[i]);
		if ((Location - WorldLoc).Size() <= Radius)
		{
			Indexes.Emplace(i);
		}
	}

	BrushPoints(Indexes, Add, Rebuild);
}