Include a follow me capture mode for Survey 123

[SWATConsultingInc]

It would be helpful if Survey 123 had a follow me mode for delineating line and polygon geometries. We have a use-case where we complete river assessments where we walk the edge of the river, and capture attributes about the shoreline. ESRI has a published SCAT form available that we are leveraging, but our field users are having a hard time manually drawing out the line geometries based on the terrible resolution base imagery. It would be helpful if they could just walk the shoreline for xy meters, then at the end they add their shoreline characteristics, and move on.

[BrettStokes]

Hi @SWATConsultingInc ,

This is already possible in Survey123 providing you don't need to capture other information (fill out other parts of the survey) while capturing the geometry. From your workflow description it sounds like this might be ok in your scenario. We call this vertex streaming and it can be applied to geotrace or geoshape questions. It is configured in the body::esri:style column of the xlsform by adding the method=vertex,streaming parameters.

There are additional (optional) parameters to control the minimum distance between vertices and turning on an audible beep when a vertex is added. Here is some more information about setting this up as the survey author (link), and also using this in the Survey123 mobile app (link).

Hope this helps,

Brett