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== Main View == <!--T:39-->
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Here below is displayed an example of 3D interaction on a selected Mesh in OpticalRevEngDental.
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{{Screenshot|3DView.PNG}}
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It is possible to interact with the 3D View using the mouse and the keyboard, the context menu, the view menu and the view toolbar.
=== Mouse Interaction === <!--T:43-->
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The user can interact with the orientation of the 3D object through either the use of the mouse or more specific tools that can be selected in the ''Context menu''.
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Here below, find the list of the provided mouse/keyboard combinations:
=== Context Menu and View Menu === <!--T:46-->
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The view menu and the 3D View context menu contain some tools that can be used to interact with the 3D View.
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{{Screenshot|3DView2.png}}
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; {{Inline button|undoAction.png}} Undo ({{Inline button|Key_ctrl.png}} + Z) : Cancels the last command and goes back as many times as it is pushed.
; {{Inline button|redoAction.png}} Redo ({{Inline button|Key_ctrl.png}} + Y) : Cancels the last undo command and takes the image back as many times as it is pushed.