Split Raster into Multiple Raster Files by Block Size
Overview
Split an Input raster file into multiple raster files by the specified X-direction block size (pixels) and Y-direction block size (pixels), and output the resulting raster blocks.
How It Works
This tool generates a regular tile grid on the input raster based on the specified horizontal and vertical pixel block sizes, then writes each tile as an independent raster file. The output tiles jointly cover the input extent, making it easier to store large rasters by block, perform block-based computation, or run parallel processing.
Use Cases
- Quickly generate standardized results when you need to run Split Raster into Multiple Raster Files by Block Size.
- Use it as an intermediate step in a longer GIS processing chain for subsequent analysis.
- Improve efficiency in batch processing, repeated execution, or standardized delivery workflows.
Parameters
| Parameter name | Description | Notes |
|---|---|---|
| Input raster file | Specifies the input raster file. | Required |
| X-direction block size (pixels) | Sets the block size in the X direction, in pixels. | Required; default: 256 |
| Y-direction block size (pixels) | Sets the block size in the Y direction, in pixels. | Required; default: 256 |
| Output raster folder | Sets the output folder for the raster files. | Required |
Steps
- Start the tool: Open the Geoprocessing Toolbox, go to Raster tools > Raster processing, and open the Split Raster into Multiple Raster Files by Block Size tool pane.
- Prepare the input: Select Input raster file and confirm that the input data is complete and can be read normally.
- Set core parameters: Configure X-direction block size (pixels) and Y-direction block size (pixels) based on your processing goal.
- Set the output: Specify the output parameter, and confirm that the output path, format, and naming rules meet subsequent use requirements.
- Run and check the result: Click Run to execute the task. After completion, check whether the result extent, value distribution, and spatial position meet expectations.
Notes
- When multiple rasters are used in combined processing, first confirm that their coordinate systems, resolutions, extents, and grid alignment are consistent.