[Home](./index.md) > [@three3d/volume](./volume.md) > [LineGradientParams](./volume.linegradientparams.md) > [addedValue](./volume.linegradientparams.addedvalue.md) ## LineGradientParams.addedValue property 轴线终点处的值相对起始点处的值的增加量；即 `endValue - startValue` **Signature:** ```typescript addedValue: number; ```