Extract Raster by Index

Overview

Extract raster data by row and column indexes.

The tool reads the input data according to the defined parameters, performs the corresponding GIS operation, and writes the result as a new dataset.

Use Cases

• Extract a rectangular raster subset by exact row and column indexes.
• Use as an intermediate step in a longer GIS processing workflow.
• Improve efficiency for batch processing, repeated runs, or standardized delivery.

Parameters

Parameter	Description	Notes
Input raster file	Raster file from which data will be extracted	Required
Start column index	Start column index of the extraction area, inclusive	Required; default: 0
Start row index	Start row index of the extraction area, inclusive	Required; default: 0
End column index	End column index of the extraction area, exclusive	Required; default: 100
End row index	End row index of the extraction area, exclusive	Required; default: 100
Output raster file	Extracted output raster file	Required

Steps

1. Start the tool: Open Geoprocessing Toolbox → Spatial Analysis Tools > Extraction Analysis, then start the Extract Raster by Index tool pane.
2. Prepare input: Select the Input raster file and confirm that the data is complete and readable.
3. Set core parameters: Configure Start column index, Start row index, End column index, and End row index based on the target subset.
4. Set output: Specify the Output raster file and confirm that the output path, format, and naming rules meet downstream requirements.
5. Run and inspect the result: Click Run, then check whether the extent, value range, and spatial position of the result meet expectations.

Notes

• Confirm index boundaries before running; end indexes are exclusive.
• When multiple rasters are used together, first confirm that the coordinate system, resolution, extent, and grid alignment are consistent.