How to print on screen the transform of an actor?

Development Programming & Scripting C++
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1

I have a variable FTransform NewPosition. I want to print its location and rotation on screen. I saw this link: Beginner how to Print Variable to Screen Question but it doesn’t tell me how to do it specifically for transforms. Here is an attempt:

SetActorTransform(NewPosition);
GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Red, 
	FString::Printf(TEXT("Position: x= %f , y= %f , z= %f , Orientation: tilt= %f , pan= %f , yaw= %f"), NewPosition));

Thanks!

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2

Hi xianthryllis,

You can use the “ToString()” method in FTransform:

https://docs.unrealengine.com/4.26/en-US/API/Runtime/Core/Math/FTransform/ToString/

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3

I’m sorry, I may need it to be more specific. Here is the attempt again:

SetActorTransform(NewPosition);
GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Red, 
	FString::Printf(TEXT(FTransform::ToString(NewPosition))));

The I get is on TEXT which says: name followed by “::” must be a class or namespace name

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4

Try:

NewPostion->ToString()

rather than

FTransform::ToString(NewPosition)
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5

I get the following error:

image

6

You don’t need to wrap it in the “TEXT() or Printf” - try with just “NewPostion->ToString()” rather than “FString::Printf(TEXT(NewPostion->ToString()))”.

The “FString::Printf()” is for when you need to pass in parameters individually - but the “ToString()” creates a full string with all the values already passed in…

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7

Thank you. I think I’m getting close enough to the solution. I only have this error now:

image
image866×145 13.8 KB

8

Ah yes - close :slight_smile: instead of the “->” (which is for “pointers”), use “.” (for references)

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9

Thank you very much!!

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