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- Create the polyline shapefile, either with ArcGIS Advanced or ET GeoTools. FIS will soon test QGIS for this process.ArcGIS Advanced option (option 1 of 2):
| Software environment | Remarks | Methodology |
|---|---|---|
| ArcGIS | Requires 'Advanced' version | Run the ArcGIS ‘Polygon to Polyline’ tool (Toolbox > Data Management Tools > Features > Polygon To Line) with: "Input Features" = (input polygon shapefile); "Output Feature Class" = (as desired); "Identify and store polygon neighboring information (optional)" selected; and all environment settings set as default. |
Example Polygon To Line output
- ET GeoWizard option (two steps) (option 2 of 2):
- Step 1: Run the ‘Polygon to Polyline’ tool
This will create lines that close all polygons - one line per polygon.
Step 2: Run the ‘Clean PolyLine Layer’ tool
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Sample input parameters: Sample output: | ||
| ET GeoWizard free version | Limited to 100 features | Run 'Polygon to Polyline' tool: Sample input parameters: Then run the 'Clean Polylines' tool: Sample input parameters: |
| ET GeoWizards paid version | Not yet evaluated | |
| QGIS | It appears that the QGIS plugin makes polylines around whole polygons, rather than distinct lines between nodes. |
The remaining processes are completed in ArcGIS, regardless of whether ArcGIS or ET GeoWizards was used for the creation of the line shapefile.
- Add fields to the output boundary polyline shapefile as follows:
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