[Home](./index.md) > [@three3d/effect](./effect.md) > [PathGeometry](./effect.pathgeometry.md) > [startDrawLength](./effect.pathgeometry.startdrawlength.md) ## PathGeometry.startDrawLength property 开始绘制的长度范围 **Signature:** ```typescript get startDrawLength(): number; set startDrawLength(value: number); ```