UPCGPythonDataBridge | Unreal Engine 5.8 Documentation

API > API/Plugins > API/Plugins/PCGPythonInteropEditor

Lightweight UObject bridge for passing FPCGDataCollection (a USTRUCT) into Python scope. Created per-execution with a unique name so Python can locate it via unreal.find_object(). Used by the Python Data Processor node to give users direct access to input/output collections.

@todo_pcg: This bridge exists because PythonScriptPlugin's PyConversion headers are Private, so we can't use PyConversion::NativizeProperty to transfer USTRUCTs directly between Python and C++. If those headers become public, this class can be removed in favor of direct struct marshalling.


Name	UPCGPythonDataBridge
Type	class
Header File	/Engine/Plugins/PCGInterops/PCGPythonInterop/Source/PCGPythonInteropEditor/Public/Helpers/PCGPythonDataBridge.h
Include Path	#include "Helpers/PCGPythonDataBridge.h"

Syntax

UCLASS (BlueprintType)  
class UPCGPythonDataBridge : public UObject

Inheritance Hierarchy

UObjectBase → UObjectBaseUtility → UObject → UPCGPythonDataBridge

Variables

Protected

Name	Type	Include Path
bOutputCollectionSet	bool	Helpers/PCGPythonDataBridge.h
InputCollection	FPCGDataCollection	Helpers/PCGPythonDataBridge.h
OutputCollection	FPCGDataCollection	Helpers/PCGPythonDataBridge.h

Functions

Public

Name	Remarks	Include Path	Unreal Specifiers
void AddToCollection ( const UPCGData* InData, FName InPinLabel, TArray< FString > InTags )	Adds data to the output collection, tagged to the given pin label.	Helpers/PCGPythonDataBridge.h	BlueprintCallable Category="PCG\|Python"
FPCGDataCollection GetInputCollection()	Returns the input data collection for the current execution.	Helpers/PCGPythonDataBridge.h	BlueprintCallable Category="PCG\|Python"
const FPCGDataCollection & GetOutputCollection ()	Returns the output collection set by the user's script.	Helpers/PCGPythonDataBridge.h
bool HasOutputCollection()	Returns true if SetOutputCollection was called during this execution.	Helpers/PCGPythonDataBridge.h
void Initialize ( const FPCGDataCollection& InInputCollection )	Populates the bridge with input data before script execution.	Helpers/PCGPythonDataBridge.h
void SetOutputCollection ( const FPCGDataCollection& Collection )	Stores the output data collection built by the user's Python script.	Helpers/PCGPythonDataBridge.h	BlueprintCallable Category="PCG\|Python"