Working on 3D point color/brush color/transparency.

Saved/Config/Windows/Engine.ini

@@ -50,12 +50,4 @@ bHQBuffer=False
 bHQDistortion=False
 bUpdateOnRT=True
 
-[WindowsApplication.Accessibility]
-StickyKeysHotkey=True
-ToggleKeysHotkey=True
-FilterKeysHotkey=True
-StickyKeysConfirmation=True
-ToggleKeysConfirmation=True
-FilterKeysConfirmation=True
-
 

Source/ImmersiveAnalytics/Plot3D.cpp

@@ -17,6 +17,12 @@ APlot3D::APlot3D()
 	PointCloudComponent->SetupAttachment(RootComponent);
 	PointCloudComponent->bCastVolumetricTranslucentShadow = true;
 	PointCloudComponent->bCastShadowAsTwoSided = true;
+
+	BrushAlpha = 0;
+	SpriteAlpha = 255;
+	BrushOverridesColor = false;
+	BrushColor = FColor(0, 0, 0, 0);
+	UseTransparency = true;
 }
 
 // Called when the game starts or when spawned
@@ -146,19 +152,30 @@ void APlot3D::BrushPoint(int32 PointIndex, bool Add)
 		return;
 	}
 
-	Points[PointIndex].SetEnabled(!Add);
 	IsBrushed[PointIndex] = Add;
-
-	/*
-	if (Add)
+	
+	if (UseTransparency)
 	{
-		Points[PointIndex].Color = FColor();
+		if (Add)
+		{
+			FColor NewColor = Points[PointIndex].OriginalColor;
+			if (BrushOverridesColor)
+			{
+				NewColor = BrushColor;
+			}
+			NewColor.A = BrushAlpha;
+			Points[PointIndex].Color = NewColor;
+		}
+		else
+		{
+			Points[PointIndex].Color = Points[PointIndex].OriginalColor;
+			Points[PointIndex].Color.A = SpriteAlpha;
+		}
 	}
 	else
 	{
-		Points[PointIndex].Color = Points[PointIndex].OriginalColor;
+		Points[PointIndex].SetEnabled(!Add);
 	}
-	*/
 }
 
 void APlot3D::ResetPoints(bool Rebuild)
@@ -183,7 +200,7 @@ void APlot3D::InvertPoints(bool Rebuild)
 {
 	for (int i = 0; i < Points.Num(); ++i)
 	{
-		BrushPoint(i, Points[i].IsEnabled());
+		BrushPoint(i, !IsBrushed[i]);
 	}
 
 	/*ParallelFor(Points.Num(), [this](int32 CurrIdx)
@@ -372,3 +389,20 @@ void APlot3D::AddFilter_Sphere(FVector Location, float Radius, bool Add, bool Re
 	BrushPoints(Indexes, Add, Rebuild);
 }
 
+void APlot3D::RefreshAfterSettingsChange()
+{
+	for (int i = 0; i < Points.Num(); ++i)
+	{
+		BrushPoint(i, IsBrushed[i]);
+	};
+
+	RebuildCloud();
+}
+
+void APlot3D::EnableAllPoints()
+{
+	for (int i = 0; i < Points.Num(); ++i)
+	{
+		Points[i].SetEnabled(true);
+	};
+}
\ No newline at end of file

Source/ImmersiveAnalytics/Plot3D.h

@@ -118,6 +118,21 @@ public:
 	UPROPERTY(EditAnywhere, Category = Plot3D)
 	FString FileName;
 
+	UPROPERTY(EditAnywhere, Category = Plot3D, BlueprintReadWrite)
+	FColor BrushColor;
+
+	UPROPERTY(EditAnywhere, Category = Plot3D, BlueprintReadWrite)
+	bool BrushOverridesColor;
+
+	UPROPERTY(EditAnywhere, Category = Plot3D, BlueprintReadWrite)
+	uint8 BrushAlpha;
+
+	UPROPERTY(EditAnywhere, Category = Plot3D, BlueprintReadWrite)
+	uint8 SpriteAlpha;
+
+	UPROPERTY(EditAnywhere, Category = Plot3D, BlueprintReadWrite)
+	bool UseTransparency;
+
 	UPROPERTY(Category = Plot3D, VisibleAnywhere, BlueprintReadOnly)
 	UPointCloud *PointCloud;
 
@@ -151,5 +166,11 @@ public:
 	UFUNCTION(BlueprintCallable)
 	void AddFilter_Sphere(FVector Location, float Radius, bool Add, bool Rebuild);
 
+	UFUNCTION(BlueprintCallable)
+	void RefreshAfterSettingsChange();
+
+	UFUNCTION(BlueprintCallable)
+	void EnableAllPoints();
+
 	class UPointCloudComponent* GetPointCloudComponent() const { return PointCloudComponent; }
 };

Source/ImmersiveAnalytics/PlotCanvas.h

@@ -63,6 +63,15 @@ public:
 	UFUNCTION(BlueprintCallable, Category = DrawingTools)
 		void DrawRectangle(int32 x1, int32 y1, int32 x2, int32 y2, const uint8 r, const uint8 g, const uint8 b, const uint8 a);
 
+	UPROPERTY(Category = Plot3D, VisibleDefaultsOnly, BlueprintReadOnly)
+		float XMin;
+	UPROPERTY(Category = Plot3D, VisibleDefaultsOnly, BlueprintReadOnly)
+		float XMax;
+	UPROPERTY(Category = Plot3D, VisibleDefaultsOnly, BlueprintReadOnly)
+		float YMin;
+	UPROPERTY(Category = Plot3D, VisibleDefaultsOnly, BlueprintReadOnly)
+		float YMax;
+
 private:
 
 	// canvas
@@ -82,9 +91,7 @@ private:
 	void setPixelColor(uint8*& pointer, uint8 red, uint8 green, uint8 blue, uint8 alpha);
 
 	TArray<float>* XArray;
-	float XMin;
-	float XMax;
+
 	TArray<float>* YArray;
-	float YMin;
-	float YMax;
+
 };