GameObject size center of the screen

Questions & Answers
1

I’m downloading 3d model dynamically using Obj Reader and displaying in the scene but sometimes model showing too small and too big. I can’t place in center of the screen for all the model. How to do this?

// duplicate the referenced image target
newImageTarget3d = Instantiate (ImageTargetTemplate3Dload.gameObject) as GameObject;

		// enable the new result with the same ImageTargetBehaviour: ???
		ImageTracker tracker = TrackerManager.Instance.GetTracker<ImageTracker> ();
		ImageTargetBehaviour imageTargetBehaviour = (ImageTargetBehaviour)tracker.TargetFinder.EnableTracking 
			(targetSearchResult, newImageTarget3d);			
		
		
		StartCoroutine (seperateJsonLoad3D (mTargetMetadata, targetSearchResult.UniqueTargetId , imageTargetBehaviour ));

Obj Reader Library to get the model from server url:

IEnumerator seperateJsonLoad3D ( string jsonURL, string targetID, ImageTargetBehaviour itb ){
		
		
		WWW www = new WWW (jsonURL);
		yield return www;
		
		jsonText = www.text;
		
		Debug.Log("3D Url load is "+ jsonURL);
		
		JSONObject json = JSONObject.Parse(jsonURL);
		
		type=json.GetString("type");
		url=json.GetString("link");
		modelShowGUIButton=true;
		
		
		
		if(type.Equals("3d")){
			
			 modal = GameObject.Find (targetID);
			
		
			if (!modal) { //fetch model from the URL
				
				Debug.Log("3D !modal is "+ url);
				
				loadingText = (GUIText)GameObject.Find ("LoadingText").GetComponent(typeof(GUIText));
				
				
				// loadingText = GameObject.Find("LoadingText").GetComponent(GUIText);
				loadingText.enabled = true;
				
				var objData = ObjReader.use.ConvertFileAsync (url , true);
		
				
				while (!objData.isDone) {
					loadingText.text = "Loading... " + (objData.progress*100).ToString("f0") + "%";
					yield return null;
				}
				

				
				loadingText.enabled = false;

				string modelName = objData.gameObjects[0].name;
				
				modal = GameObject.Find (modelName); // find the model reference
				
				modal.name = targetID; // change the model name to targetID !!!
				
				// store the original model somewhere safe!!
				modal.transform.position = new Vector3 (modal.transform.position.x, 500f, modal.transform.position.z);
				
			}
			
			 modalClone = Instantiate( modal ) as GameObject; //clone the model 
			
			modalClone.transform.localScale += new Vector3(250,250,250);

			/modalClone.AddComponent(MeshCollider);
			mesh = modalClone.AddComponent<MeshCollider>();

			modalClone.transform.parent = itb.gameObject.transform; // pair the clone to the instantiated image target

		modalClone.transform.localPosition = new Vector3(0,0,0);




		}
		
		
		
	}

34932-3d_destroy.jpg
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34933-3dship.jpg
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2

You don’t have enough information here for an exact answer. But assume that you want to scale based on the height of the view. Camera, both orthographic and perspective, given the same settings see the same amount vertically across all devices. So you can do something like this:

   public float goalVertical = 6.5f;

…then in your code you can do:

   float factor = goalVertical / renderer.bounds.size.y; 
   modalClone.transform.localScale = new Vector3(factor,factor,factor);