## Tile by Point Number ##

### Summary ###

**Tile by Point Number** divides the point cloud into a series of small data files with a total of user-defined number of points. This process begins from the lower-left corner of the input file's bounding box. The output of this function is similar to [Tile by Range](TilebyRange.md).


### Principle ###

The **Point Number** entered by the user will be recalculated according to the actual number of blocks in the actual chunking process. The formula is as follows:

<div align="center">
<img src="../../../ScreenShot/formula/Formula_TilebyNumber_1.png" height="60"></img>
</div>

<div align="center">
<img src="../../../ScreenShot/formula/Formula_TilebyNumber_2.png" height="60"></img>
</div>


Among them, <img src="../../../ScreenShot/formula/Formula_TilebyNumber_3.png" alt="Lidar360 Formula_TilebyNumber_3" width="70" style="vertical-align:middle"/> is the number of tiles, <img src="../../../ScreenShot/formula/Formula_TilebyNumber_4.png" alt="Lidar360 Formula_TilebyNumber_4" width="60" style="vertical-align:middle"/> is the actual point number of a tile, <img src="../../../ScreenShot/formula/Formula_TilebyNumber_5.png" alt="Lidar360 Formula_TilebyNumber_5" width="40" style="vertical-align:middle"/> is the total number of points in the original file, and<img src="../../../ScreenShot/formula/Formula_TilebyNumber_6.png" alt="Lidar360 Formula_TilebyNumber_6" width="45" style="vertical-align:middle"/>is the user-defined point number.

Original point cloud data and point cloud data after chunking by point (different yellow bounding boxes represent different point cloud data).

### Usage ###

Click *Data Management > Point Cloud Tools > Tile by Point Number*

<div align=center>
<img src="../../../ScreenShot/en/DataManagement/PointCloudTools/TilebyPointNumber.png" alt="Lidar360 TilebyPointNumber" width="350" style='margin-left:4%'/>
<img src="../../../ScreenShot/universe/DataManagement/TilebyPointNumber_2.png" alt="Lidar360 TilebyPointNumber_2" width="240" style='margin-center:4%'/>
</div>

### Settings ###

- **Input Data**: The input file can be a single point cloud data file or multiple data files. File Format: *.LiData.
- **Point Number (default value is "50000")**: Set the number of points in each tile. Note that the actual number of points in a tile may be slightly different from the user-defined number.
- **Output path**: Path of the output folder. After the function being executed, new files will be generated.