Function createDimensionArrow

createDimensionArrow(
    position: Point2D,
    direction: number,
    size: number,
    type?: DimensionArrowType,
): EntityBase
便捷函数：快速创建箭头
Parameters
- position: Point2D
- direction: number
- size: number
- type: DimensionArrowType = DimensionArrowType.ClosedFilled
Returns EntityBase
- Defined in entities_custom/ArrowRenderer.ts:642