.
├── ar                                      # arcore related logic
│   ├── CameraFacingNode.kt                 # a type of node always facing the camera
│   └── MyArFragment.kt                     # custom arframgent 

├── catalog                                 # contains the catalog screens logic
│   ├── CatalogFrontActivity.kt             # main page of the catalog(the one with the categories)
│   ├── DepartmentActivity.kt               # department page activit
│   ├── Department.kt                       # department item 
│   ├── DepartmentRecyclerAdapter.kt        # department adapter
│   ├── DepartmentSourceData.kt             # holds the department images
│   ├── Furniture.kt                        # data class representing a furniture
│   ├── ItemDetailsActivity.kt              #  activity showing details about ites.
                                               Also allows downloading a model to show
│   ├── ItemRecyclerAdapter.kt              # recycle adapter for items
│   └── LoadingDialogFragment.kt            # loading aimation fragment

├── greetings                               # contains logic regearding screens displaying on first app usage
│   ├── AboutAppFrag.kt                     # fragemnt showing details about the app
│   ├── AppDescriptionFrag.kt               # show how to use the app
│   ├── AppTechnicalDescriptionFrag.kt      # shows technical notes regardign ar
│   ├── GreetingActivity.kt                 # the activity showed to the user on first usage
│   ├── HomeFrag.kt                         # first page  showed in the greetnig fragment
│   ├── ObservableWebView.java              # webviewcustom   used to show the privacy notes
│   ├── PrivacyPolicyFrag.kt                # fragments show the privacy policy
│   ├── SquareImageButton.java              # sqaure image button.Extends Button class
│   └── VideoAppFrag.kt                     # video framenget of the video 
                                              shown to the user in the greetings pages

├── Help                                    # use help activit'ies related logic
│   ├── HelpActivity.kt                     # actvity that disaplys usage help to the user
│   ├── HelpDescriptionFrag.kt              # show how to use the app
│   ├── HelpTechnicalDescriptionFrag.kt     # shows technical notes regardign ar
│   └── HelpVideoFrag.kt                    # video framenget of the videds
                                              shown to the user in the help pages

├── InfoFAB.kt                              # the infofab shows no the camera activity.Top left panel
├── MeasurementBox.kt                       # holds logic regearding creating the 3d cube used to
                                              measure a reald world 3d sapcec
├── OpenCameraActivity.kt                   # the main activity.Holds the AR logic

└── utils                                   # utility classes
    ├── PhotoSaver.kt                       # saves ar scene photo
    └── VideoRecorder.java                  # records ar scene video

* https://free3d.com/3d-models/ikea

* https://www.polantis.com/ikea/arstid-wall-lamp

* https://www.turbosquid.com/Search/3D-Models/free/ikea

* https://clara.io/view/615465b6-822c-4e2a-9b7d-e77b816001a7#

* https://sketchfab.com/tags/ikea

* http://www.proviz.info/blog3dfreemodels/3dmodels-ikeafalster

* http://ikea.csail.mit.edu/

* https://3dbrute.com/33-ikea-sofa/

* https://cgtricks.com/high-quality-3d-models-ikea-proviz/

* https://3dwarehouse.sketchup.com/collection/ue790c74c-6a82-4077-92cd-7f6d2a5f1661/ikea?sortBy=createTime%20DESC&searchTab=model&hl=en&login=true

* https://3dwarehouse.sketchup.com/collection/c03129ceab823647aac2578a7b9ddb8c/2-IKEA-SOFA?sortBy=createTime%20DESC&searchTab=model&hl=en

* https://cgdownloads.com/download-slect-ikea-slakt-ikea-3d-model-free/

* http://www.cgchannel.com/2014/03/download-10-free-models-of-ikea-furniture-from-proviz/

* https://archibaseplanet.com/download/6f86e1ec.html