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

 1 How do I register a polygon (boundaries of a land holding) in Collect Mobile? asked 24 Feb '17, 05:30 sandip 11●5●9 accept rate: 0% Dear OF, do you have a solution to make/use polygon files in Collect Mobile and Collect Survey Designer, as explained in may Answer/Question below? Can this be done in a similar way as for Collect Earth? Joseph (19 Mar '20, 14:48) joseph See also: How to load polygon sample data in CE - May 2016 (04 Jan, 21:21) joseph

 2 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 answered 24 Feb '17, 12:32 wiell 157●3 accept rate: 21%
 2 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 answered 15 Mar '17, 16:54 OF Collect ♦♦ 3.6k●1●8 accept rate: 23%
 1 You can create a multiple entity “bountry”, with a single coordinate attribute. Collect Mobile doesn’t support coordinate attributes with multiplicity. answered 24 Feb '17, 08:26 wiell 157●3 accept rate: 21% Can you please explain how to do that? Thanks in advance. (24 Feb '17, 09:18) sandip
 1 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 answered 29 Jan, 13:59 OF Collect ♦♦ 3.6k●1●8 accept rate: 23% Perfect, thanks a lot, this possibility is very handy to create multiple reference points, such as plot corners, or a polygon, ... hope that plogons will be also possible to show in Map, similar to Cearth. (29 Jan, 18:04) joseph
 0 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 answered 19 Mar '20, 13:23 joseph 83●2●7●18 accept rate: 0% Is there any new development on using polygons with Collect/Collect-Mobile? (04 Jan, 17:13) joseph
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question asked: 24 Feb '17, 05:30

question was seen: 5,674 times

last updated: 29 Jan, 18:04