Update LineManager.cs

Assets/Scripts/LineManager.cs

@@ -35,35 +35,44 @@ void DrawLine(ARObjectPlacementEventArgs args) {
         //The coordinates of the last point of line renderer would be set to the placement position of the sphere.
         _lineRenderer.SetPosition(_lineRenderer.positionCount - 1,args.placementObject.transform.position);
 
+        //if the points of lineRenderer are more than 1, only then we can measure objects.
         if (_lineRenderer.positionCount > 1)
         {
+            //we will get vector positions of the last two points of the line renderer and store them as Vector A and Vector B.
             Vector3 pointA = _lineRenderer.GetPosition(_lineRenderer.positionCount - 1);
             Vector3 pointB = _lineRenderer.GetPosition(_lineRenderer.positionCount - 2);
 
+            //then we use the distance formula to calculate the distance between vectors a and b. Let us say the distance is D.
             float dist=Vector3.Distance(pointA,pointB);
-            TextMeshPro distText = Instantiate(_textMeshPro);
 
+            //Next we instantiate the textMeshPro gameObject and store it in a variable called distText.
+            TextMeshPro distText = Instantiate(_textMeshPro);
 
+            //We set the value of distText equal to D. We also shorten it down to two decimal places and convert it from meters to centimeters.
             distText.text = (dist * 100f).ToString("F2")+" cm";
 
+            //next, we need to align our distText with the line. we need to make sure its angle aligns with the line and that it is clearly visible to the users.
+            //directionVector stores the difference between pointB and pointA.
             Vector3 directionVector = (pointB - pointA);
+
+            //normal stores the direction of the normal of the sphere.
             Vector3 normal = args.placementObject.transform.up;
+
+            //We get the cross product of the directionVector and the normal and then use Quaternions to set the rotation of the text.
             Vector3 upd=Vector3.Cross(directionVector, normal).normalized;
             Quaternion rotation = Quaternion.LookRotation(-normal,upd);
 
             distText.transform.rotation = rotation;
+
+            //the i=only thing we have to do now is to set the size of the text and center the text between the lines.
             distText.transform.position = (pointA + directionVector * 0.5f) + upd * 0.008f;
         }
 
 
     }
 
-    void Reload()
-    {
-
-
-            SceneManager.LoadScene(SceneManager.GetActiveScene().name); // loads current scene
-
+    void Reload(){
+            SceneManager.LoadScene(SceneManager.GetActiveScene().name); // reloads current scene
     }
 
 }