How to Import And Export WorldAnchor in Unity

chanmob

private WorldAnchorStore anchorStore = null;
private WorldAnchor worldAnchor;
private WorldAnchorTransferBatch transferBatch;

private List<byte> exportingAnchorBytes = new List<byte>();

private void ExportWorldAnchor()
{
    transferBatch = new WorldAnchorTransferBatch();
    transferBatch.AddWorldAnchor("GameRootAnchor", worldAnchor);
    WorldAnchorTransferBatch.ExportAsync(transferBatch, OnExportDataAvailable, OnExportComplete);
}

private void OnExportComplete(SerializationCompletionReason completionReason)
{
    if (completionReason != SerializationCompletionReason.Succeeded)
    {

    }

    else
    {

    }
}

private void OnExportDataAvailable(byte[] data)
{
    exportingAnchorBytes.AddRange(data);
}

// This byte array should have been updated over the network from TransferDataToClient
private byte[] importedData;
private int retryCount = 3;

private void ImportRootGameObject()
{
    WorldAnchorTransferBatch.ImportAsync(importedData, OnImportComplete);
}

private void OnImportComplete(SerializationCompletionReason completionReason, WorldAnchorTransferBatch deserializedTransferBatch)
{
    if (completionReason != SerializationCompletionReason.Succeeded)
    {
        Debug.Log("Failed to import: " + completionReason.ToString());
        if (retryCount > 0)
        {
            retryCount--;
            WorldAnchorTransferBatch.ImportAsync(importedData, OnImportComplete);
        }
        return;
    }

    worldAnchor = deserializedTransferBatch.LockObject("gameRoot", this.gameObject);
}

I don't know how to import and export worldanchor well..

help me, plz..

1) I saw TransferDataToClient(data) in example,
but i don't know how to realize that on OnExportDataAvailable.

2) how to set byte[] importData??

stepan_stulov

Hey, @chanmob

I'm not sure what seems to be the problem? You accumulate the bytes in a list of bytes. Now, when OnExportComplete is fired, your byte list should contain the complete bytes of the transfer batch. Pass it around, save it to file, send it to another HoloLens.

It's hard to say what exactly doesn't work as it's not even clear whether this is code fragment of a MonoBehaviour, whether all your privates are initialized etc.

Cheers

chanmob

@stepan_stulov

I need how to transfer to client that data of OnExportDataAvailable