How do I register a polygon (boundaries of a land holding) in Collect Mobile?

You create a structure similar to this:

You make boundary a Multiple (1:N) (Table layout) entity and coordinate a simple Coordinate attribute.

Regards, Daniel

Hi Sandip,
in the latest version of Collect (3.12.24) there is even a polygon feature that can be helpful. What you will need to do is to: - define a calculated attribute (call it whatever you want, for example "boundary_polygon") - mark it as "Geometry" - define the expression to calculate the value as: geo:geometry(boundary/coordinate) - now the attribute will be available in the map view among the list of possible layers that you can add

Many thanks,
Open Foris Team

You can create a multiple entity “bountry”, with a single coordinate attribute. Collect Mobile doesn’t support coordinate attributes with multiplicity.

Hi Joseph,
This problem has been solved with the last version of Collect Mobile (1.7.8 - build 187).
Please update it and let us know.
Many thanks,
Open Foris Team

Dear Daniel, I tried this old advice/instruction, and it works in Collect-Data Management/Map, however it crashes in Collect-Mobile: how to solve? In Collect-Map I see only the (e.g. 4) corner-points; can they be connected to see a real polygon? This procedure results as 'data' coordinate-points; can I design/digitize also a polygon as sample 'area': at cluster (e.g. biotope-area) level to define the area to sample plots(e.g. biotope-elements) within? Joseph

Dear OF Team: thanks for the improvement use of the polygon option with OF Collect & mobile with: polygon border-points/corners connected with lines and separate (center) points for information! The automatic zoom to the survey area selected through the dashboard is also a handy feature! JB