Clip
Layer clipping is a function that extracts a subset of features (points, lines, or regions) from a source dataset (the dataset to be clipped) using an overlay dataset (the clip dataset). For a detailed introduction to the clip tool, please refer to Overlay Analysis Tools.
Feature Description
- The clip dataset must be a region dataset, while the dataset to be clipped can be a point, line, or region dataset.
- In the dataset to be clipped, only objects that fall within the polygons of the clip dataset will be output to the result dataset.
Function Entry
- Spatial Analysis tab -> Vector Analysis -> Overlay Analysis -> Clip.
- Toolbox -> Vector Analysis -> Overlay Analysis -> Clip.
Parameter Description
- Source Dataset: Select the datasource and the dataset to be clipped.
- Overlay Data: Select the datasource and the clip dataset.
- Result Dataset: Select the datasource to store the result dataset and specify its name.
- Tolerances: After the overlay operation, if the distance between two nodes is less than this value, the two nodes will be merged. The default value is the fuzzy tolerance of the dataset to be clipped, which can be set under the tolerances section in the fuzzy field on the Vector Dataset tab of the Dataset Properties dialog box.
If the fuzzy tolerance is not set in the Dataset Properties, the default tolerance here is related to the coordinate system of the dataset. For details, please refer to Tolerance Description.
Note:Before performing overlay analysis, ensure that the projections of the data to be operated on are consistent; otherwise, the overlay analysis may fail.
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