Use the auto-fit tool from the toolbar to quickly adjust your view of the model so that the model fills the viewport and is centered within it. When you fit a view, the orientation does not change, as indicated by the view triad.
Auto-fitting occurs in the current viewport as soon as you click the auto-fit tool. If you have more than one viewport, select the viewport that you want to rescale to make it the current viewport before selecting the auto-fit tool.
A separate option, Auto-fit after rotations, is available when you select ViewGraphics Options from the main menu bar. You use this option to control whether or not ABAQUS/CAE automatically rescales the view to fit the viewport as you rotate. For more information on using this option, see Rotating the view, Section 5.5.2.