Getting landscape informations using the pythin API

[Damien220]

Hello everyone…
What i am trying to do is getting all information of a landscape ( width, height, num of components…), using the python API.

import unreal
l = unreal.EditorActorSubsystem().get_selected_level_actors()
all = unreal.EditorActorSubsystem().get_all_level_actors_components()
print(all)
#print(l)
#print(type(l[0]))
#print(l[0].is_editor_only_actor())
#print(unreal.Landscape().lod0_screen_size)
#print(unreal.LandscapeInfo(l[0]))
#landscape_info = l[0].get_landscape_info()
#landscape_info = l[0].create_landscape_info()

I was able to select the landscape in my level, but when trying to apply the methods available for the Landscape module, i always get " module Landscape has no property method_name", as well as there is a module named LandscapeInfo but it has no property or methods to use (unreal.LandscapeInfo — Unreal Python 5.0 (Experimental) documentation).
So how can i get these information or components using the API, or even from cpp code. My goal is to use the script to make custom components because i want to train a machine learning model using that data.
I hope i clarified my issue here, and to sum up, the python API for landscape module is not returning any useful data to use.

[robeche]

I’m having the same issue… did you find a solution?

Regards

Roberto

[Damien220]

Hi,
Yeah but i did use the CPP API, and not the python API.
If you’re intrested i can show you the code.

[robeche]

yes please!!

[Damien220]

Sorry for the late reply.
Here is a snippet of the code you can use to handle landscapes in cpp:

Includes:
#include <Runtime/Landscape/Classes/Landscape.h>
//#include <Runtime/Landscape/Classes/LandscapeProxy.h>
#include <Runtime/Landscape/Classes/LandscapeInfo.h>
#include <Runtime/Landscape/Classes/landscapeComponent.h>

landactor = {};//holder of the landscape actor. In .h it is defined as: TArray<AActor*> landactor;

	UGameplayStatics::GetAllActorsOfClass(GetWorld(), AActor::StaticClass(), landactor);// get the landscape actor fron world and store it in a variable.
	
	for (AActor* actor : landactor) {
		//Get the landscape 
		ALandscape* land = Cast<ALandscape>(actor); // Making sure we are handling a lanscape actor.

		if (land) {
			// This will give the x,y,z of the landscape in the world.
			FTransform actorLandscapePosition = land->LandscapeActorToWorld();
			//FBox landbox = land->GetComponentsBoundingBox();

			auto comp = land->LandscapeComponents;// get components of the landscape
			if (comp.Num() > 0) {
				
				//ULandscapeInfo* landInfo = land->GetLandscapeInfo(); // not really useful
				//UE_LOG(LogTemp, Display, TEXT("the actor is %d"), comp.Num());// print the number of components
				int componentnum = 0;//for iteration
				for (auto component : comp) {
					//Loop through each component

					//if (component.IsA(ULandscapeComponent::StaticClass())) {
					ULandscapeComponent* LandComponent = Cast< ULandscapeComponent>(component); // I just make a lot of test the the code won't crash 
					//UE_LOG(LogTemp, Display, TEXT("the actor is %s"), *LandComponent->GetComponentLocation().ToString());
					if (LandComponent) {
						//Getting the center of the component x,y,z
						FBoxSphereBounds Bounds = LandComponent->CalcBounds(FTransform::Identity);
						FVector Center = Bounds.Origin;
						Center -= LandComponent->GetComponentLocation();
										
						UE_LOG(LogTemp, Warning, TEXT("Component center point: %s"), *Center.ToString());

									//this is to get the w/h of the component 
									int32 ComponentSizeQuads = LandComponent->ComponentSizeQuads;
									int32 ComponentWidth = ComponentSizeQuads + 1;
									int32 ComponentHeight = ComponentSizeQuads + 1;
									FVector componentLocation = LandComponent->GetComponentLocation();//get component location in world 

So here is a snippet of the code, i am just showing the classes and functions to be used and how we can use them. I hope this will get you going with handling landscapes in cpp code.
Enjoy coding.