Clip
Layer clipping refers to the function of extracting a subset of features (points, lines, polygons) from the source dataset (the dataset to be clipped) using the overlay dataset (clip dataset). For a detailed introduction to the clip tool, please refer to the overlay analysis tool.
Instructions for use
- The type of the clip dataset must be a region dataset, while the type of the dataset to be clipped can be point, line, or region dataset.
- In the dataset to be clipped, only objects within the polygons of the clip dataset will be output to the result dataset.
Function Entries
- Spatial Analysis tab->Vector Analysis->Overlay Analysis->Clip.
- Toolbox->Vector Analysis->Overlay Analysis->Clip.
Parameter description
- Source Dataset: Select the data source and dataset to be clipped.
- Overlay Data: Select the data source and clip dataset.
- Result Dataset: Select the data source to store the result dataset and specify the name of the result dataset.
- Tolerances: After the overlay operation, if the distance between two nodes is less than this value, they are merged. The default value is the fuzzy tolerance of the dataset to be clipped, which can be set in the fuzzy field under tolerances in the vector dataset tab of the dataset properties dialog.
If the fuzzy tolerance is not set in the dataset properties, the default tolerance here is related to the dataset's coordinate system. For details, please refer to the Tolerance Explanation.
- Compare Results: Check the "Compare Results" checkbox to display the dataset to be clipped, clip dataset, and result dataset simultaneously in a new map, facilitating result comparison for users.
Note:Before performing overlay analysis, ensure that the data projections are consistent; otherwise, it may cause the overlay analysis to fail.
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