Adding code to display the estimated body height scale factor.

5 年前 · 46afd02c
--- a/Assets/Scenes/HumanSegmentation/HumanBodyTracking3D.unity
+++ b/Assets/Scenes/HumanSegmentation/HumanBodyTracking3D.unity
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--- a/Assets/Scripts/TestBodyAnchorScale.cs
+++ b/Assets/Scripts/TestBodyAnchorScale.cs
+using UnityEngine;
+using UnityEngine.UI;
+using UnityEngine.XR.ARFoundation;
+
+public class TestBodyAnchorScale : MonoBehaviour
+{
+    [SerializeField]
+    [Tooltip("The ARHumanBodyManager which will produce frame events.")]
+    ARHumanBodyManager m_HumanBodyManager;
+
+     /// <summary>
+    /// Get or set the <c>ARHumanBodyManager</c>.
+    /// </summary>
+    public ARHumanBodyManager humanBodyManager
+    {
+        get { return m_HumanBodyManager; }
+        set { m_HumanBodyManager = value; }
+    }
+
+    [SerializeField]
+    Text m_ImageInfo;
+
+    /// <summary>
+    /// The UI Text used to display information about the image on screen.
+    /// </summary>
+    public Text imageInfo
+    {
+        get { return m_ImageInfo; }
+        set { m_ImageInfo = value; }
+    }
+
+    void OnEnable()
+    {
+        Debug.Assert(m_ImageInfo != null, "need a text field");
+        m_ImageInfo.enabled = true;
+
+        Debug.Assert(m_HumanBodyManager != null, "Human body manager is required.");
+        m_HumanBodyManager.humanBodiesChanged += OnHumanBodiesChanged;
+    }
+
+    void OnDisable()
+    {
+        Debug.Assert(m_ImageInfo != null, "need a text field");
+        m_ImageInfo.enabled = false;
+
+        Debug.Assert(m_HumanBodyManager != null, "Human body manager is required.");
+        m_HumanBodyManager.humanBodiesChanged -= OnHumanBodiesChanged;
+    }
+
+    void OnHumanBodiesChanged(ARHumanBodiesChangedEventArgs eventArgs)
+    {
+        bool hasScale = false;
+        float scale = 0.0f;
+
+        foreach (var humanBody in eventArgs.added)
+        {
+            if (!hasScale)
+            {
+                scale = humanBody.estimatedHeightScaleFactor;
+                hasScale = true;
+            }
+        }
+
+        foreach (var humanBody in eventArgs.updated)
+        {
+            if (!hasScale)
+            {
+                scale = humanBody.estimatedHeightScaleFactor;
+                hasScale = true;
+            }
+        }
+
+        Debug.Assert(m_ImageInfo != null, "need a text field");
+        m_ImageInfo.text = hasScale ? scale.ToString("F10") : "<no scale>";
+    }
+}
--- a/Assets/Scripts/TestBodyAnchorScale.cs.meta
+++ b/Assets/Scripts/TestBodyAnchorScale.cs.meta
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