---
name: "Terrain Processor: Line: Mask: Line"
type: topic
source: https://community.bistudio.com/wiki/Terrain_Processor:_Line:_Mask:_Line
revid: 201638
updated: 2021-01-17T20:17:36Z
---

# Terrain Processor: Line: Mask: Line

#### Task details

**Task name** : Mask: line

**Dll plugin name** : BITasksPlugin.dll

**Geometry type** : Polyline, PolylineM, PolylineZ

**Heightmap** : No

#### Description

This algorithm removes all objects in features database which are close to given polyline.

#### Task parameters

- **Objects distance** - Distance between object and lines.
- **Spline interpolation** - Use Bezier spline instead of original polyline.

#### Usage

This task removes objects closer to line according to the given distance. You can use it for removing trees on roads, ...

#### Algorithm

1. Algorithm finds all objects closer to polyline then given distance and removes them.

<sub>Source: [BI Community Wiki — Terrain Processor: Line: Mask: Line](https://community.bistudio.com/wiki/Terrain_Processor:_Line:_Mask:_Line) (revision 201638).</sub>