The steps below will guide you through the creation of polygons using QGIS.

If you already have a shape file or geojson you want to extract, please refer to our guide here.

QGIS is a free and open-source cross-platform desktop geographic information system application that supports viewing, editing, and analysis of geospatial data

You can download it here: https://www.qgis.org/en/site/

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Alternatively, you can book this service with Adsquare at an extra cost per POI, we invite you to consult your Adsquare Account Manager for further details.

In geometry, a polygon is a plane figure that is described by a finite number of straight line segments connected to form a closed polygonal chain or polygonal circuit. The solid plane region, the bounding circuit, or the two together, may be called a polygon.

- Coordinates reference system to use: WGS 84 - EPSG: 4326

- CSV with the geometry: AS_WKT
- For Polygons delivery: CSV UTF-8

- Optional - for Shapefiles delivery only: We require an archive compressed into a single file as a zip, which must contain the following files (Feature Collection):1 x Main File (.shp)1 x Index file (.shx)1 x dBASE File (.dbf)

We advise you to install the QuickMapServices plugin.

Once installed, go to Web → QuickMapServices → Google → Google Road or Google Satellite

a. Got to Layer → Add Layer → Add Delimited Text Layer

b. Choose the file containing the coordinates you wish to transform into polygons.

The CSV file should contain at least one pair of latitude/longitude in two separated columns.

Please note that the coordinates fields X and Y (Longitude/Latitude) will be recognised automatically according to the CSV file values loaded.

c. Click to Add and then Close the window.

d. On the left-hand panel: Right click on the layer → Open Attribute Table

e. Right click on the POI and select "Zoom to Feature". Zoom in and out accordingly

a. Go to Layer → Create Layer → New Shapefile Layer

b. File name: choose the local folder and the name of the layer

c. File encoding: UTF-8

d. Geometry type: Polygon

e. Coordinate Reference System: EPSG: 4326 - WGS: 84

f. You can add as many fields as you want. We recommend to add a "geo_id" field

f. Click OK

a. Click on the icon Toggle Editing:

b. Click on the icon Add Polygon Feature:

c. Draw the Polygon and when adding the last point to the shape, right click to close shape and fill in the attribute features accordingly.

Once all polygons have been drawn, the file needs to be exported in CSV.

a. Right click on the layer → Export → Save Feature As

Format: Comma Separated Value (CSV)

File name → choose local folder and name

Layer name (leave blank)

CRS: WGS 84 - EPSG: 4326

Encoding: UTF-8
Under Geometry -> Geometry type: Polygon

Under Layer Options -> GEOMETRY: AS_WKT

b. Click OK

The generated CSV file must look like below after the export:

You can use the output to upload a proximity dataset on the AMP following our guide here.