Creating and Editing Data

Create an Empty Layer

• Click on Data > Create Layer

  

• Fill the form with some values; first of all insert a name and title and select Polygon as geometry type

• Add three attributes and click the Create button

  • label: String

  • value: Float

  • date: Date

  

• GeoNode will create the new empty layer with the selected geometry type and attributes and will redirect you directly to the detail page

  

Edit the Layer Data

• Click on Editing Tools > Layer > Edit Data

  

• Go to Boulder area by using the geocoding widget

  

• Click on the pencyl in order to enter the edit mode

  

• Click on the add new geometry button

  

• Click on the Pencyl again

  

• Draw a small polygon over the Boulder Airport and click on the floppy disk button

  

• Double-click on the attributes table columns in order to enable the edit mode on the values

  

• Insert some values as shown below; the date-time attributes must be provided in ISO format

  

• Save and repeat the operation as many times you want

  

• Once finished, go back to the layer detail page; you will notice that GeoNode will show some features but the bounding box is still the whole world; remember to clean the image cache of the browser in order to show the new features

  

Update the Layer Bounding Box

• Logout and login again as an admin; from the context menù, click on GeoServer

  

• If you are still logged in as test_user1 on GeoServer, follow the steps below

  

  

  

  

• Go to the GeoServer Data > Layers section

  

• Select and click on the Test Layer you just created

  

• Scroll down to the Bounding Boxes section, update them as shown in the figure, and Save

  

• Go back to GeoNode; from the layer details page click on the Refresh Attributes and Statistics button

  

• The page will be refreshed and now the layer will be zoomed on the right location

  

Delete Data

• Enter the Edit Data mode again

  

• Select (click over) a polygon and click on the Trash Bin icon

  

• Confirm the deletion and verify the polygon disappear from the map

  

• Go back to the layer details page, refresh the browser image cache, and verify the feature is not present anymore

  

Refresh the Thumbnail

• Last thing to do is to refresh the layer thumbnail

  

  

Next Section: Downloading, Replacing, Appending Data