Split By Attributes
Function Overview
The Split By Attributes tool splits input data by a unique attribute field and creates subsets with multiple output features.
This tool supports split-by-attribute operations on a single file only. It does not change the geometry of the original features.
Use Cases
Administrative Division Data Management: Split province-wide administrative division data by the city field and generate a separate Shapefile or feature class for each city.
Land Use Analysis: Split a comprehensive land use map by land-use code to produce separate layers for cultivated land, forest land, construction land, and other categories.
Environmental Monitoring: Split nationwide monitoring station data by province code to simplify province-level report delivery.
Parameters
Basic Settings (Required)
| Parameter | Description | Data type |
|---|---|---|
| Input vector file | Features to split. | Point, line, polygon |
| Attribute field | Field used to split the input features and generate output feature names. | |
| Output vector folder | Storage path for the output result. | Folder path |
Notes
Coordinate System Consistency
- Ensure that the input features and split features use the same coordinate system.
- Inconsistent coordinate systems may cause incorrect split locations.
Data Quality Checks
- Geometry validity: repair invalid geometries, such as self-intersections or empty geometries.
- Topology checks: ensure the data has no overlaps or gaps, especially for boundary-based splitting scenarios.
- Field completeness: check whether key fields contain null or abnormal values.
Operating Steps
Step 1: Start The Tool
Open the Geoprocessing Toolbox, go to Analysis Tools > Extraction Analysis, and double-click Split By Attributes to open the tool pane.
Step 2: Set Parameters
Enter the input vector file, attribute field, and output vector folder as prompted. All parameters are required.
Step 3: Run And Monitor The Task
Click Run to start processing. You can view progress, run time, and completion status in the task list.
If the run fails, the tool provides an error message. Use the Edit button in the lower-right corner to return to the tool pane and adjust the parameters.