When an Event type is set as a Polygon as the Geometry Type, you will be able to record an area as part of the location of the Event instead of a coordinate.
An Event type with areas enabled is capable of representing geographic areas as its location, rather than a single point. Event types can only collect one type of geometry (either point, or area),
Record Event Area
If recording an Event with that is configured with Polygon geometry from the EarthRanger Mobile app, when tapping on the Record Event Area, a new view called Record Event Area will display with the map zoomed into the device's current location.
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To start recording an area, tap on Start Recording button, it will begin the area recording, generating the first point of the polygon (set of coordinates).
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Continue moving with the device around the area you would like to record. Click Add Point each time you'd like to add a point to the polygon shape.
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When you start recording, 2 new buttons will display on the map Add Point and Close Area.
The Close Area button will remain disabled until at least 3 sets of coordinates are recorded using the Add Point button.
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Before closing the area, you can edit the shape after starting by deleting a previous point or starting over.
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The perimeter and area of the polygon shape will be calculated.
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EarthRanger Mobile allows a user to create any valid polygon as an area shape. Once submitted, editing the shape can only be done using EarthRanger Web. If you submit an intersecting polygon through mobile and want to edit the shape you will have to remove the intersections to save on EarthRanger Web.
Once you finish the details of the Event and the Event Area, you can submit the New Event with the Submit button on the app bar. The recorded area will appear as a static shape.
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EarthRanger version 2.8.3