Clip
Layer clipping refers to the function of extracting partial features (points, lines, regions) from the source dataset (clipped dataset) using overlay dataset (clip dataset). For detailed information about the clipping tool, see Overlay Analysis Tools.
Feature Description
- The clip dataset must be a region dataset, while the clipped dataset can be point, line, or region dataset.
- Only features within the clip dataset's polygons will be output to the result dataset.
Feature Entry
- Spatial Analysis Tab->Vector Analysis->Overlay Analysis->Clip.
- Toolbox->Vector Analysis->Overlay Analysis->Clip.
Parameter Description
- Source Dataset: Select the datasource and dataset to be clipped.
- Overlay Data: Select the datasource and clip dataset.
- Result Dataset: Choose the output datasource and specify the result dataset name.
- Tolerances: After overlay operation, if the distance between two nodes is smaller than this value, they will be merged. Default value is the fuzzy tolerance of the source dataset, which can be set in the Vector Dataset tab under Dataset Properties dialog.
If fuzzy tolerance isn't set in dataset properties, the default tolerance relates to the dataset's coordinate system. For details, see Tolerance Description.
- Compare Results: Check Compare Results to display the source dataset, clip dataset, and result dataset simultaneously in a new map for comparison.
- Keep Single Object: When lines are within multiple overlapping polygons or on boundaries, checking this option returns a single object; otherwise returns multiple objects.
Notes:Before performing overlay analysis, ensure consistent data projection for all datasets, otherwise the analysis may fail.
Related Topics