How to GetWorldTransfom of a static mesh and store it?

Development Programming & Scripting C++
, , , ,
1

Hello, I actually want to do this Blueprint in C++ , How to ?

image_2022-08-03_011313502
image_2022-08-03_011313502884×483 70.3 KB

what I am trying is:

void AStaticGroup::GetTestTransform(TArray<FTransform>& Transform)
{
	FTransform GetWorldTransform_0{};
	FTransform GetWorldTransform_1{};
	TArray<FTransform> MakeArray{};
	if(::IsValid(StaticMesh01))
	{
		GetWorldTransform_0 = StaticMesh01->USceneComponent::GetWorldTransform();
	}
	if(::IsValid(StaticMesh02))
	{
		GetWorldTransform_1 = StaticMesh02->USceneComponent::GetWorldTransform();
	}
	
	MakeArray.SetNum(2, true);
	MakeArray[0] = GetWorldTransform_0;
	MakeArray[1] = GetWorldTransform_1;
	Transform = MakeArray;
}
2

If you simply need to get the array, you can use this:
.h:
TArray<FTransform> GetTestTransform();

.cpp:

TArray<FTransform> AStaticGroup::GetTestTransform()
{
    TArray<FTransform> NewArray;
    NewArray.Add(StaticMesh1->GetActorTransform()); // if meshes are actrors; if they are components, use GetComponentTransform();
    NewArray.Add(StaticMesh2->GetActorTransform());
    return NewArray;
}

If you need it to be with an out parameter, like in your case, then:
.h:
void GetTestTransform(TArray<FTransform> &NewArray);

.cpp:

void AStaticGroup::GetTestTransform(TArray<FTransform> &NewArray)
{
    NewArray.Add(StaticMesh1->GetActorTransform()); 
    NewArray.Add(StaticMesh2->GetActorTransform());
    //that is if you passed an empty array as a parameter. If you already initialized the array with 2 elements, just set its elements.
}
2 Likes
3

Thank you sir for reply, I have a question, GetActorTransform() will get the worldtransform of the actor? actually I am spawning the actor in the level on a defined world location.

I am asking because the node GetWorldTransfom is returning GetComponentToWorld() under scene component.