我有一个文本文件。现在，我想将垂直数据扩展为DefaultTrackableEventHandler.cs和using UnityEngine;
using Vuforia;
/// A custom handler that implements the ITrackableEventHandler interface.
/// Changes made to this file could be overwritten when upgrading the Vuforia version.
/// When implementing custom event handler behavior, consider inheriting from this class instead.
public class DefaultTrackableEventHandler : MonoBehaviour, ITrackableEventHandler
{
#region PROTECTED_MEMBER_VARIABLES
protected TrackableBehaviour mTrackableBehaviour;
protected TrackableBehaviour.Status m_PreviousStatus;
protected TrackableBehaviour.Status m_NewStatus;
#endregion // PROTECTED_MEMBER_VARIABLES
#region UNITY_MONOBEHAVIOUR_METHODS
protected virtual void Start()
{
mTrackableBehaviour = GetComponent<TrackableBehaviour>();
if (mTrackableBehaviour)
mTrackableBehaviour.RegisterTrackableEventHandler(this);
}
protected virtual void OnDestroy()
{
if (mTrackableBehaviour)
mTrackableBehaviour.UnregisterTrackableEventHandler(this);
}
#endregion // UNITY_MONOBEHAVIOUR_METHODS
#region PUBLIC_METHODS
/// Implementation of the ITrackableEventHandler function
/// called when the tracking state changes.
public void OnTrackableStateChanged(
TrackableBehaviour.Status previousStatus,
TrackableBehaviour.Status newStatus)
{
m_PreviousStatus = previousStatus;
m_NewStatus = newStatus;
if (newStatus == TrackableBehaviour.Status.DETECTED ||
newStatus == TrackableBehaviour.Status.TRACKED ||
newStatus == TrackableBehaviour.Status.EXTENDED_TRACKED)
{
Debug.Log("Trackable " + mTrackableBehaviour.TrackableName + " found");
OnTrackingFound();
}
else if (previousStatus == TrackableBehaviour.Status.TRACKED &&
newStatus == TrackableBehaviour.Status.NO_POSE)
{
Debug.Log("Trackable " + mTrackableBehaviour.TrackableName + " lost");
OnTrackingLost();
}
else
{
// For combo of previousStatus=UNKNOWN + newStatus=UNKNOWN|NOT_FOUND
// Vuforia is starting, but tracking has not been lost or found yet
// Call OnTrackingLost() to hide the augmentations
OnTrackingLost();
}
}
#endregion // PUBLIC_METHODS
#region PROTECTED_METHODS
protected virtual void OnTrackingFound()
{
var rendererComponents = GetComponentsInChildren<Renderer>(true);
var colliderComponents = GetComponentsInChildren<Collider>(true);
var canvasComponents = GetComponentsInChildren<Canvas>(true);
// Enable rendering:
foreach (var component in rendererComponents)
component.enabled = true;
// Enable colliders:
foreach (var component in colliderComponents)
component.enabled = true;
// Enable canvas':
foreach (var component in canvasComponents)
component.enabled = true;
}
protected virtual void OnTrackingLost()
{
var rendererComponents = GetComponentsInChildren<Renderer>(true);
var colliderComponents = GetComponentsInChildren<Collider>(true);
var canvasComponents = GetComponentsInChildren<Canvas>(true);
// Disable rendering:
foreach (var component in rendererComponents)
component.enabled = false;
// Disable colliders:
foreach (var component in colliderComponents)
component.enabled = false;
// Disable canvas':
foreach (var component in canvasComponents)
component.enabled = false;
}
#endregion // PROTECTED_METHODS
}
using UnityEngine;
public class WaitState : DefaultTrackableEventHandler
{
public GameObject _InfoCanvas;
protected override void Start()
{
Debug.Log("WaitState.Start()");
}
protected override void OnTrackingFound()
{
base.OnTrackingFound();
Debug.Log("WaitState.OnTrackingFound()");
_InfoCanvas.SetActive(false);
}
protected override void OnTrackingLost()
{
base.OnTrackingLost();
Debug.Log("WaitState.OnTrackingLost()");
_InfoCanvas.SetActive(true);
}
}
的水平数据。我该怎么办？
这是我的输入：
Exp1Exp1：我想要具有所需的输出结果，如下所示。这里使用的键是数据中的前四个字。其余的值放在一行上。
Exp2Exp2：与上面相同，但是，这里的值分为两行（使用相同的关键字）：
0000000 aa______ 50 F 91
0000000 aa______ 50 F 59
0000000 aa______ 50 F 20
0000000 aa______ 50 F 76
0000001 bb______ 50 F 46
0000001 bb______ 50 F 39
0000001 bb______ 50 F 8
0000001 bb______ 50 F 5
0000003 cc______ 26 F 30
0000003 cc______ 26 F 50
0000003 cc______ 26 F 71
0000003 cc______ 26 F 36
0000004 dd______ 40 M 58
0000004 dd______ 40 M 71
0000004 dd______ 40 M 20
0000004 dd______ 40 M 10
答案 0 :(得分：1)
如果数据帧中的数据分为几列，这可能会更容易解决。但是，在这种情况下，您可以做的是将字符串分成两部分；一个键，另一个与其他值。可以轻松地在UDF中完成此操作（Spark函数也可以实现，但不清楚）：
// put the case class outside main method
case class SplitReturn(key: String, vals: String)
val splitKeyVal = udf((str: String) => {
val key = str.split(" ").init.mkString(" ")
val vals = str.split(" ").last
SplitReturn(key, vals)
})
def groupVals(n: Int) = udf((vals: Seq[String]) => {
vals.grouped(n).map(_.mkString(" ")).toSeq
})
此处的参数nGroup确定要用作键的单词数。 nGroup=4的使用示例：
val nGroup = 4
val df3 = df.withColumn("ret", splitKeyVal($"value"))
.withColumn("key", $"ret.key")
.withColumn("vals", $"ret.vals")
.groupBy("key").agg(collect_list($"vals").as("val"))
.withColumn("val", explode(groupVals(nGroup)($"val")))
.select(concat($"key", lit(" "), concat_ws(" ", $"val")).as("col"))
最后一行将首先连接值，然后添加键以获得单列（此处称为col）。结果：
+--------------------------------+
|col |
+--------------------------------+
|0000004 dd______40 M 58 71 20 10|
|0000000 aa______50 F 91 59 20 76|
|0000003 cc______26 F 30 50 71 36|
|0000001 bb______50 F 46 39 8 5 |
+--------------------------------+
设置nGroup=2会给出：
+---------------------------+
|col |
+---------------------------+
|0000001 bb______ 50 F 46 39|
|0000001 bb______ 50 F 8 5 |
|0000003 cc______ 26 F 30 50|
|0000003 cc______ 26 F 71 36|
|0000000 aa______ 50 F 91 59|
|0000000 aa______ 50 F 20 76|
|0000004 dd______ 40 M 58 71|
|0000004 dd______ 40 M 20 10|
+---------------------------+