API Reference > imodeljs-frontend > Views > ViewChangeOptions ViewChangeOptions Interface Options that control how operations that change a viewport behave. Extends ViewAnimationOptions Methods Name Description onExtentsError(status: ViewStatus): ViewStatus Optional Function to be called when the extents are adjusted due to a limits error (view too larger or too small) Inherited methods Name Inherited from Description animationFinishedCallback(didComplete: boolean): void Optional ViewAnimationOptions Invoked when the animator is finished. Properties Name Type Description animateFrustumChange undefined | boolean Whether the change should be animated or not. marginPercent undefined | MarginPercent The percentage of the view to leave blank around the edges. noSaveInUndo undefined | boolean Whether to save the result of this change into the view undo stack. Inherited properties Name Type Inherited from Description animationTime undefined | number ViewAnimationOptions Amount of time for animation, in milliseconds. cancelOnAbort undefined | boolean ViewAnimationOptions if animation is aborted, don't move to end, leave at current point instead. easingFunction undefined | EasingFunction ViewAnimationOptions easing function for animation. Defined in core/frontend/src/ViewAnimation.ts Line 47 Last Updated: 29 November, 2022