[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [Range1d](./rc-js-util.range1d.md) > [scaleRelativeTo](./rc-js-util.range1d.scalerelativeto.md) ## Range1d.scaleRelativeTo() method Scales the range relative to a point (may not be outside of the range). **Signature:** ```typescript scaleRelativeTo(_scalingFactor: number, _relativeTo: number, _result?: Range1d): Range1d; ``` ## Parameters

Parameter	Type	Description
\_scalingFactor	number
\_relativeTo	number
\_result	[Range1d](./rc-js-util.range1d.md)<TResult>	_(Optional)_

**Returns:** [Range1d](./rc-js-util.range1d.md)<TResult> ## Remarks If the point is at a boundary, then the range will be scaled such that that boundary is not changed. Where the point is away from a boundary, the updated range will have boundaries proportional to the distance from the center of the range. E.g. scaling factor of 0.5, P represents the position of the point in the range: ``` min max |P-------------------------| |-------------| |------------P-------------|       |-------------| ```