fixed calculation error in automatic model positioning

Assets/Resources/UI/FullscreenModelView.prefab

@@ -96,6 +96,21 @@ GameObject:
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
   m_IsActive: 1
+--- !u!1 &1624064398336504
+GameObject:
+  m_ObjectHideFlags: 1
+  m_PrefabParentObject: {fileID: 0}
+  m_PrefabInternal: {fileID: 100100000}
+  serializedVersion: 5
+  m_Component:
+  - component: {fileID: 224038629709109506}
+  m_Layer: 5
+  m_Name: Icons
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
 --- !u!1 &1666907970834032
 GameObject:
   m_ObjectHideFlags: 1
@@ -602,13 +617,33 @@ RectTransform:
   m_LocalPosition: {x: 0, y: 0, z: 1}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
+  m_Father: {fileID: 224038629709109506}
+  m_RootOrder: 0
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+  m_AnchorMin: {x: 0.5, y: 0.5}
+  m_AnchorMax: {x: 0.5, y: 0.5}
+  m_AnchoredPosition: {x: 0, y: 175}
+  m_SizeDelta: {x: 200, y: 200}
+  m_Pivot: {x: 0.5, y: 0.5}
+--- !u!224 &224038629709109506
+RectTransform:
+  m_ObjectHideFlags: 1
+  m_PrefabParentObject: {fileID: 0}
+  m_PrefabInternal: {fileID: 100100000}
+  m_GameObject: {fileID: 1624064398336504}
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_Children:
+  - {fileID: 224034239137159526}
+  - {fileID: 224603290751646008}
   m_Father: {fileID: 224847826353125020}
   m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0.5, y: 0.5}
   m_AnchorMax: {x: 0.5, y: 0.5}
-  m_AnchoredPosition: {x: 0, y: 130}
-  m_SizeDelta: {x: 100, y: 100}
+  m_AnchoredPosition: {x: 0, y: -106.3}
+  m_SizeDelta: {x: 0, y: 0}
   m_Pivot: {x: 0.5, y: 0.5}
 --- !u!224 &224178829673496998
 RectTransform:
@@ -621,7 +656,7 @@ RectTransform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 224847826353125020}
-  m_RootOrder: 2
+  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0.5, y: 0.5}
   m_AnchorMax: {x: 0.5, y: 0.5}
@@ -713,7 +748,7 @@ RectTransform:
   m_LocalPosition: {x: 0, y: 0, z: 1}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
-  m_Father: {fileID: 224847826353125020}
+  m_Father: {fileID: 224038629709109506}
   m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0.5, y: 0.5}
@@ -731,8 +766,7 @@ RectTransform:
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children:
-  - {fileID: 224034239137159526}
-  - {fileID: 224603290751646008}
+  - {fileID: 224038629709109506}
   - {fileID: 224178829673496998}
   m_Father: {fileID: 224214707840811800}
   m_RootOrder: 1

Assets/RothenburgAR/Scripts/UI/FullscreenModelViewBehaviour.cs

@@ -59,7 +59,9 @@ namespace RothenburgAR.UI
 
             var scale = 1f / Mathf.Max(mesh.bounds.size.x, mesh.bounds.size.y, mesh.bounds.size.z);
             modelGo.transform.localScale = new Vector3(scale, scale, scale);
-            modelGo.transform.localPosition = mesh.bounds.center * scale + new Vector3(0, 0, 1.8f);
+            var pos = -mesh.bounds.center * scale;
+            pos += new Vector3(0, 0, -modelGo.transform.localPosition.z + 2f);
+            modelGo.transform.localPosition = pos;
 
             _currentDisplayedModelGo = modelGo;
             DetailsModel.CurrentModel = _currentDisplayedModelGo;