Plotting a Geopoint (LNG+LAT) from CSV data file in survey

Support
1

Hi ODK Community,

I would like to use previously collected Location data ( Lng_+Lat) during
the next round of the survey, is there a widget to which i could pass
longitude and latitude and a geo-point gets displayed in Google maps (also
current location of the user, that would be nice).

Any suggestions would be of great help.

Best,
Ayub

2

There are two issues:
(1) getting the previous lat, long value into the new form.
(2) displaying that to the user.

For (1), you would need to use either external data or external app and
figure out how to get the data back down to the device, and how to easily
retrieve it using some user-input value.

For (2), you can use the placement-map appearance for a geopoint widget. If
the field is read-only, the location cannot be altered (viewing only).

Note that the placement-map requires wifi / cellular connectivity because
the map tiles cannot be cached on the device. There is no solution for
this at this time (it is a limitation of Google Maps and the licensing
restrictions for the map tiles used by that system).

··· On Thu, Oct 29, 2015 at 2:46 AM, Ayub wrote:

Hi ODK Community,

I would like to use previously collected Location data ( Lng_+Lat) during
the next round of the survey, is there a widget to which i could pass
longitude and latitude and a geo-point gets displayed in Google maps (also
current location of the user, that would be nice).

Any suggestions would be of great help.

Best,
Ayub

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3

We are planning to use completely independent application with loaded data
into sqlite db, and use that to plot geo-locations, it seems like some map
data remains cached in application.

I Will update as we get there.

Thanks,

Best,
Ayub

4

My suggestion for this is to rasterize previous collected location data
into MBTiles then load into the application. Is it not your way?

Best,

Thanh

Vào 16:02:06 UTC+7 Thứ Hai, ngày 16 tháng 11 năm 2015, Ayub đã viết:

··· > > We are planning to use completely independent application with loaded data > into sqlite db, and use that to plot geo-locations, it seems like some map > data remains cached in application. > > I Will update as we get there. > > Thanks, > > Best, > Ayub >