This tool is used to convert multi-line strings into polygons whose feature boundaries are generated from a line layer of closed features.
The Polygonize tool can be selected by navigating the following path:
Tools > Vector Processing > Geometry > Polygonize
The first section requires you to select required data layers to run the Polygonize tool.
- Select a Linestring Layer – Layer on which you will run this tool.
The second section requires you to select the range of data for the operation to be initiated. There are three options available.
- Select By Data Queries
- Select By Graphics
- All Data
For more information about these options and how to use them, see Data Selection Methods.
The output is represented as polygons generated from the closed lines.
You can view the output after storing it. To save the output, you must enter the Output Layer Name and click on Save Data button. The saved output will be added as a new layer in the current map session, where you can apply styling as required. This output layer will also be available in 'My Data' section and can be used in any map session of interest.