GPS inquiry

Hi,

I read in the CommCare help that latitude and longitude are supposed to be
captured as decimal degrees, and elevation and accuracy are in meters.
However, when I export my data, it reads latitude (meters) and longitude
(meters). Is there a way to change how GPS data is captured so that these
are decimal degrees?

In addition, I thought this may just be a label problem but when I look at
the actual coordinates, they are not reading where I know they should be.
They should be reading somewhere around -72.6891, 19.2577 or -71.9927, 18.7834
for example, but are actually reading around -71.1007523, 42.338414 or
151.2875339, -33.8171853.

Side note, I also tried mapping these and setting the CRS to WGS84 and set
’on-the’fly’ projection but they are still not appearing where they should
be.

Any ideas?

Thanks!

Hi Liz,

What is the precision of those readings? One possibility is that the GPS
measurement wasn’t accurate enough when it was captured. Another
possibility is that the device’s GPS is simply off (CommCare gets the GPS
fix directly from the Android OS) - when you get the GPS in another
application (say, Google Maps) is the location accurate?

If you find that Google Maps is able to correctly locate your device but
CommCare is not, I would report a bug
https://confluence.dimagi.com/display/commcarepublic/Bug+Reports and
someone on our team will take a closer look.

Cheers,
Will

··· On Tue, Mar 21, 2017 at 8:03 PM, Liz T wrote:

Hi,

I read in the CommCare help that latitude and longitude are supposed to be
captured as decimal degrees, and elevation and accuracy are in meters.
However, when I export my data, it reads latitude (meters) and longitude
(meters). Is there a way to change how GPS data is captured so that these
are decimal degrees?

In addition, I thought this may just be a label problem but when I look at
the actual coordinates, they are not reading where I know they should be.
They should be reading somewhere around -72.6891, 19.2577 or -71.9927, 18.7834
for example, but are actually reading around -71.1007523, 42.338414 or
151.2875339, -33.8171853.

Side note, I also tried mapping these and setting the CRS to WGS84 and set
’on-the’fly’ projection but they are still not appearing where they should
be.

Any ideas?

Thanks!


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Hi Will,

Thanks for your response! The average precision is 22.5 meters.
I figured out our issue- all the records from from the anticipated location
got cleared, I believe because we moved around the questions in the
application a lot. The ones left were just test points.

Still not sure why the export says latitude and longitude are measured in
meters though, but I guess that isn’t crucial.

Thanks again,
Liz

··· On Wednesday, March 22, 2017 at 1:51:25 AM UTC-4, William Pride wrote: > > Hi Liz, > > What is the precision of those readings? One possibility is that the GPS > measurement wasn't accurate enough when it was captured. Another > possibility is that the device's GPS is simply off (CommCare gets the GPS > fix directly from the Android OS) - when you get the GPS in another > application (say, Google Maps) is the location accurate? > > If you find that Google Maps is able to correctly locate your device but > CommCare is not, I would report a bug > and > someone on our team will take a closer look. > > Cheers, > Will > > On Tue, Mar 21, 2017 at 8:03 PM, Liz T <lta...@gmail.com > wrote: > >> Hi, >> >> I read in the CommCare help that latitude and longitude are supposed to >> be captured as decimal degrees, and elevation and accuracy are in meters. >> However, when I export my data, it reads latitude (meters) and longitude >> (meters). Is there a way to change how GPS data is captured so that these >> are decimal degrees? >> >> In addition, I thought this may just be a label problem but when I look >> at the actual coordinates, they are not reading where I know they should >> be. They should be reading somewhere around -72.6891, 19.2577 or >> -71.9927, 18.7834 for example, but are actually reading around >> -71.1007523, 42.338414 or 151.2875339, -33.8171853. >> >> Side note, I also tried mapping these and setting the CRS to WGS84 and >> set 'on-the'fly' projection but they are still not appearing where they >> should be. >> >> Any ideas? >> >> Thanks! >> >> >> >> >> >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "commcare-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to commcare-user...@googlegroups.com . >> For more options, visit https://groups.google.com/d/optout. >> > >

Great to hear. That does sound like a labelling error, our team will look
into it.

Cheers,
Will

··· On Wed, Mar 22, 2017 at 6:22 PM, Liz T wrote:

Hi Will,

Thanks for your response! The average precision is 22.5 meters.
I figured out our issue- all the records from from the anticipated
location got cleared, I believe because we moved around the questions in
the application a lot. The ones left were just test points.

Still not sure why the export says latitude and longitude are measured in
meters though, but I guess that isn’t crucial.

Thanks again,
Liz

On Wednesday, March 22, 2017 at 1:51:25 AM UTC-4, William Pride wrote:

Hi Liz,

What is the precision of those readings? One possibility is that the GPS
measurement wasn’t accurate enough when it was captured. Another
possibility is that the device’s GPS is simply off (CommCare gets the GPS
fix directly from the Android OS) - when you get the GPS in another
application (say, Google Maps) is the location accurate?

If you find that Google Maps is able to correctly locate your device but
CommCare is not, I would report a bug
https://confluence.dimagi.com/display/commcarepublic/Bug+Reports and
someone on our team will take a closer look.

Cheers,
Will

On Tue, Mar 21, 2017 at 8:03 PM, Liz T lta...@gmail.com wrote:

Hi,

I read in the CommCare help that latitude and longitude are supposed to
be captured as decimal degrees, and elevation and accuracy are in meters.
However, when I export my data, it reads latitude (meters) and longitude
(meters). Is there a way to change how GPS data is captured so that these
are decimal degrees?

In addition, I thought this may just be a label problem but when I look
at the actual coordinates, they are not reading where I know they should
be. They should be reading somewhere around -72.6891, 19.2577 or
-71.9927, 18.7834 for example, but are actually reading around
-71.1007523, 42.338414 or 151.2875339, -33.8171853.

Side note, I also tried mapping these and setting the CRS to WGS84 and
set ‘on-the’fly’ projection but they are still not appearing where they
should be.

Any ideas?

Thanks!


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Groups “commcare-users” group.
To unsubscribe from this group and stop receiving emails from it, send
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To unsubscribe from this group and stop receiving emails from it, send an
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Thanks Will!

··· On Wednesday, March 22, 2017 at 12:32:07 PM UTC-4, William Pride wrote: > > Great to hear. That does sound like a labelling error, our team will look > into it. > > Cheers, > Will > > On Wed, Mar 22, 2017 at 6:22 PM, Liz T <lta...@gmail.com > wrote: > >> Hi Will, >> >> Thanks for your response! The average precision is 22.5 meters. >> I figured out our issue- all the records from from the anticipated >> location got cleared, I believe because we moved around the questions in >> the application a lot. The ones left were just test points. >> >> Still not sure why the export says latitude and longitude are measured in >> meters though, but I guess that isn't crucial. >> >> Thanks again, >> Liz >> >> On Wednesday, March 22, 2017 at 1:51:25 AM UTC-4, William Pride wrote: >>> >>> Hi Liz, >>> >>> What is the precision of those readings? One possibility is that the GPS >>> measurement wasn't accurate enough when it was captured. Another >>> possibility is that the device's GPS is simply off (CommCare gets the GPS >>> fix directly from the Android OS) - when you get the GPS in another >>> application (say, Google Maps) is the location accurate? >>> >>> If you find that Google Maps is able to correctly locate your device but >>> CommCare is not, I would report a bug >>> and >>> someone on our team will take a closer look. >>> >>> Cheers, >>> Will >>> >>> On Tue, Mar 21, 2017 at 8:03 PM, Liz T wrote: >>> >>>> Hi, >>>> >>>> I read in the CommCare help that latitude and longitude are supposed to >>>> be captured as decimal degrees, and elevation and accuracy are in meters. >>>> However, when I export my data, it reads latitude (meters) and longitude >>>> (meters). Is there a way to change how GPS data is captured so that these >>>> are decimal degrees? >>>> >>>> In addition, I thought this may just be a label problem but when I look >>>> at the actual coordinates, they are not reading where I know they should >>>> be. They should be reading somewhere around -72.6891, 19.2577 or >>>> -71.9927, 18.7834 for example, but are actually reading around >>>> -71.1007523, 42.338414 or 151.2875339, -33.8171853. >>>> >>>> Side note, I also tried mapping these and setting the CRS to WGS84 and >>>> set 'on-the'fly' projection but they are still not appearing where they >>>> should be. >>>> >>>> Any ideas? >>>> >>>> Thanks! >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "commcare-users" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to commcare-user...@googlegroups.com. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "commcare-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to commcare-user...@googlegroups.com . >> For more options, visit https://groups.google.com/d/optout. >> > >