[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [IReadonlyRange2d](./rc-js-util.ireadonlyrange2d.md) ## IReadonlyRange2d interface [Range2d](./rc-js-util.range2d.md). **Signature:** ```typescript export interface IReadonlyRange2d extends TPickExcept>, "setXMin" | "setXMax" | "setYMin" | "setYMax" | "update" | "bound" | "ensureAABB" | "ensureMinRange" | "translateBy" | "copyFromBuffer" | TTypedArrayTupleMutativeMethods> ``` **Extends:** [TPickExcept](./rc-js-util.tpickexcept.md)<Readonly<[Range2d](./rc-js-util.range2d.md)<TArray>>, "setXMin" \| "setXMax" \| "setYMin" \| "setYMax" \| "update" \| "bound" \| "ensureAABB" \| "ensureMinRange" \| "translateBy" \| "copyFromBuffer" \| [TTypedArrayTupleMutativeMethods](./rc-js-util.ttypedarraytuplemutativemethods.md)>