Will ODK be able to track GPS?

Hi all,

I'm really impressed with ODK. I'm wondering if it might be possible
to code a question so that a GPS track starts, and a subsequent
question that can stop tracking. If this is possible, the ODK could
serve also as a GPS track database on top of which many GPS analyses
could work.

Do you think this is possible?

Thanks,

Mike

Although I am no ODK expert, I doubt this is something that the software can
currently do. However, I think you raise a really interesting idea.

Mapping and GIS analysis are becoming an increasingly more important parts
of the social science research toolkit (see lots of neat examples in
economics herehttp://siteresources.worldbank.org/DEC/Resources/USING_THE_GLOBAL_POSITIONING_SYSTEM_GPS_IN_HOUSEHOLD_SURVEYS.pdf).
The ability to capture not just coordinates but shapes (e.g., roads,
outlines of agricultural plots, etc.) would be a great boon for researchers.

So, +1 to Mike's question.

Also, has anyone used ODK to capture several GPS waypoints for constructing
shapefiles of things like road networks?

Best,
Arthur

··· On Tue, Mar 22, 2011 at 3:43 PM, sketchy wrote:

Hi all,

I'm really impressed with ODK. I'm wondering if it might be possible
to code a question so that a GPS track starts, and a subsequent
question that can stop tracking. If this is possible, the ODK could
serve also as a GPS track database on top of which many GPS analyses
could work.

Do you think this is possible?

Thanks,

Mike

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Yes Arthur, but without sucess.

I used ODK collect (geotagger) to improve an foresty inventory... in
tropical forest the trees aren't widespread (trees are near) and i take a
lot of points in a plot. All the points in collect was with the same
coordinate and when a upload data to ODK Aggregate all the points are with
the same corrdinate too.

thus happen with high accurace in gps.

i think that the precision from GPS plus the canopy cover may difficult
this.

someone help ?

best regards

Renan

··· 2011/3/22 Arthur Shaw

Although I am no ODK expert, I doubt this is something that the software
can currently do. However, I think you raise a really interesting idea.

Mapping and GIS analysis are becoming an increasingly more important parts
of the social science research toolkit (see lots of neat examples in
economics herehttp://siteresources.worldbank.org/DEC/Resources/USING_THE_GLOBAL_POSITIONING_SYSTEM_GPS_IN_HOUSEHOLD_SURVEYS.pdf).
The ability to capture not just coordinates but shapes (e.g., roads,
outlines of agricultural plots, etc.) would be a great boon for researchers.

So, +1 to Mike's question.

Also, has anyone used ODK to capture several GPS waypoints for constructing
shapefiles of things like road networks?

Best,
Arthur

On Tue, Mar 22, 2011 at 3:43 PM, sketchy inabahort@gmail.com wrote:

Hi all,

I'm really impressed with ODK. I'm wondering if it might be possible
to code a question so that a GPS track starts, and a subsequent
question that can stop tracking. If this is possible, the ODK could
serve also as a GPS track database on top of which many GPS analyses
could work.

Do you think this is possible?

Thanks,

Mike

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this is a frequently requested feature and the ongoing work on
external controls (see
http://code.google.com/p/opendatakit/wiki/XFormControlExtensionProposal)
should solve this problem (at least on the mobile side).

for those who need this functionality today, you might want to try
something like http://mytracks.appspot.com to capture tracks in the
background of a data collection session. if you don't need a
background session, you could try a repeating geopoint question to
capture a series of points. accuracy really depends on the device and
the environment. the best i've seen on standard phone (nexus one) is
3m accuracy with clear skies and lots of patience.

··· On Tue, Mar 22, 2011 at 13:27, Renan Kamimura wrote: > Yes Arthur, but without sucess. > I used ODK collect (geotagger) to improve an foresty inventory... in > tropical forest the trees aren't widespread (trees are near) and i take a > lot of points in a plot. All the points in collect was with the same > coordinate and when a upload data to ODK Aggregate all the points are with > the same corrdinate too. > thus happen with high accurace in gps. > i think that the precision from GPS plus the canopy cover may difficult > this. > someone help ? > best regards > Renan > > > > > 2011/3/22 Arthur Shaw >> >> Although I am no ODK expert, I doubt this is something that the software >> can currently do. However, I think you raise a really interesting idea. >> Mapping and GIS analysis are becoming an increasingly more important parts >> of the social science research toolkit (see lots of neat examples in >> economics here). The ability to capture not just coordinates but shapes >> (e.g., roads, outlines of agricultural plots, etc.) would be a great boon >> for researchers. >> So, +1 to Mike's question. >> Also, has anyone used ODK to capture several GPS waypoints for >> constructing shapefiles of things like road networks? >> Best, >> Arthur >> On Tue, Mar 22, 2011 at 3:43 PM, sketchy wrote: >>> >>> Hi all, >>> >>> I'm really impressed with ODK. I'm wondering if it might be possible >>> to code a question so that a GPS track starts, and a subsequent >>> question that can stop tracking. If this is possible, the ODK could >>> serve also as a GPS track database on top of which many GPS analyses >>> could work. >>> >>> Do you think this is possible? >>> >>> Thanks, >>> >>> Mike >>> >>> -- >>> Post: opendatakit@googlegroups.com >>> Unsubscribe: opendatakit+unsubscribe@googlegroups.com >>> Options: http://groups.google.com/group/opendatakit?hl=en >> >> -- >> Post: opendatakit@googlegroups.com >> Unsubscribe: opendatakit+unsubscribe@googlegroups.com >> Options: http://groups.google.com/group/opendatakit?hl=en > > > > -- > Renan A. Kamimura > > > -- > Post: opendatakit@googlegroups.com > Unsubscribe: opendatakit+unsubscribe@googlegroups.com > Options: http://groups.google.com/group/opendatakit?hl=en >

I use an App called 'GPS Bluetooth' that talks to high accuracy (Sub-meter,
sub-foot) GPS units that are capable of transmitting their NMEA signal via
Bluetooth. I've never tried it through ODK but I do use it sometime to just
collect accurate GPS data via my Android. I will look into seeing how this
may work tomorrow; it is late here now! Typically the GPS I use is either
on a backpack mount or on a survey pole/staff.

··· On Tue, Mar 22, 2011 at 4:27 PM, Renan Kamimura wrote:

Yes Arthur, but without sucess.

I used ODK collect (geotagger) to improve an foresty inventory... in
tropical forest the trees aren't widespread (trees are near) and i take a
lot of points in a plot. All the points in collect was with the same
coordinate and when a upload data to ODK Aggregate all the points are with
the same corrdinate too.

thus happen with high accurace in gps.

i think that the precision from GPS plus the canopy cover may difficult
this.

someone help ?

best regards

Renan

2011/3/22 Arthur Shaw jashaw2002@gmail.com

Although I am no ODK expert, I doubt this is something that the software
can currently do. However, I think you raise a really interesting idea.

Mapping and GIS analysis are becoming an increasingly more important parts
of the social science research toolkit (see lots of neat examples in
economics herehttp://siteresources.worldbank.org/DEC/Resources/USING_THE_GLOBAL_POSITIONING_SYSTEM_GPS_IN_HOUSEHOLD_SURVEYS.pdf).
The ability to capture not just coordinates but shapes (e.g., roads,
outlines of agricultural plots, etc.) would be a great boon for researchers.

So, +1 to Mike's question.

Also, has anyone used ODK to capture several GPS waypoints for
constructing shapefiles of things like road networks?

Best,
Arthur

On Tue, Mar 22, 2011 at 3:43 PM, sketchy inabahort@gmail.com wrote:

Hi all,

I'm really impressed with ODK. I'm wondering if it might be possible
to code a question so that a GPS track starts, and a subsequent
question that can stop tracking. If this is possible, the ODK could
serve also as a GPS track database on top of which many GPS analyses
could work.

Do you think this is possible?

Thanks,

Mike

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Eric
304-205-9447

this is a frequently requested feature and the ongoing work on
external controls (see
http://code.google.com/p/opendatakit/wiki/XFormControlExtensionProposal)
should solve this problem (at least on the mobile side).

for those who need this functionality today, you might want to try
something like http://mytracks.appspot.com to capture tracks in the
background of a data collection session. if you don't need a
background session, you could try a repeating geopoint question to
capture a series of points. accuracy really depends on the device and
the environment. the best i've seen on standard phone (nexus one) is
3m accuracy with clear skies and lots of patience.

Yes Arthur, but without sucess.
I used ODK collect (geotagger) to improve an foresty inventory... in
tropical forest the trees aren't widespread (trees are near) and i take a
lot of points in a plot. All the points in collect was with the same
coordinate and when a upload data to ODK Aggregate all the points are with
the same corrdinate too.
thus happen with high accurace in gps.
i think that the precision from GPS plus the canopy cover may difficult
this.
someone help ?
best regards
Renan

Although I am no ODK expert, I doubt this is something that the software
can currently do. However, I think you raise a really interesting idea.
Mapping and GIS analysis are becoming an increasingly more important parts
of the social science research toolkit (see lots of neat examples in
economics here). The ability to capture not just coordinates but shapes
(e.g., roads, outlines of agricultural plots, etc.) would be a great boon
for researchers.
So, +1 to Mike's question.
Also, has anyone used ODK to capture several GPS waypoints for
constructing shapefiles of things like road networks?
Best,
Arthur

Hi all,

I'm really impressed with ODK. I'm wondering if it might be possible
to code a question so that a GPS track starts, and a subsequent
question that can stop tracking. If this is possible, the ODK could
serve also as a GPS track database on top of which many GPS analyses
could work.

Do you think this is possible?

Thanks,

Mike

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Hi all,

is their a way we can do this in the xls format? if yes, please give some info.

ty

··· On Tuesday, March 22, 2011 2:47:06 PM UTC-7, Yaw Anokwa wrote: > On Tue, Mar 22, 2011 at 13:27, Renan Kamimura wrote: > > 2011/3/22 Arthur Shaw > >> On Tue, Mar 22, 2011 at 3:43 PM, sketchy wrote:

Also; if you are using ESRI's ArcGIS mapping suite you can easily make
'scripts' or 'models' as ArcMap calls them, to quickly create shapefiles (or
even layers in a geodatabase - which would be preferred in most cases and is
more powerful than shapefiles). The 'Model Builder' tools in ArcMap allow
you to create automated procedures that you can quickly import your ODK data
tables into shapefiles or a Geodatabase, only updating and/or appending
structures or locations you have visited since last upload.

There are other Open GIS tools out there and I can re-research them for the
group: I'm a GIS programmer and database analyst so I've probably
(hopefully!) found the better GIS tools out there so the ODK group can save
some time by not looking into them again.

Off the top of my head are:
uDIG - open source, allows customization and quite powerful
qGIS (Quantum GIS) same features as above
TatukGIS - has a powerful free viewer but a very cheap full featured and
customizable editor which is VERY powerful and is written in PASCAL/Delphi
and comes with it won compiler for customization ($350 at my last check)

http://opensourcegis.org/ <-- check here for a lot of open source GIS, GPS
and mapping tools.

··· On Tue, Mar 22, 2011 at 7:55 PM, Eric Meadows wrote:

I use an App called 'GPS Bluetooth' that talks to high accuracy (Sub-meter,
sub-foot) GPS units that are capable of transmitting their NMEA signal via
Bluetooth. I've never tried it through ODK but I do use it sometime to just
collect accurate GPS data via my Android. I will look into seeing how this
may work tomorrow; it is late here now! Typically the GPS I use is either
on a backpack mount or on a survey pole/staff.

On Tue, Mar 22, 2011 at 4:27 PM, Renan Kamimura renankami@gmail.comwrote:

Yes Arthur, but without sucess.

I used ODK collect (geotagger) to improve an foresty inventory... in
tropical forest the trees aren't widespread (trees are near) and i take a
lot of points in a plot. All the points in collect was with the same
coordinate and when a upload data to ODK Aggregate all the points are with
the same corrdinate too.

thus happen with high accurace in gps.

i think that the precision from GPS plus the canopy cover may difficult
this.

someone help ?

best regards

Renan

2011/3/22 Arthur Shaw jashaw2002@gmail.com

Although I am no ODK expert, I doubt this is something that the software
can currently do. However, I think you raise a really interesting idea.

Mapping and GIS analysis are becoming an increasingly more important
parts of the social science research toolkit (see lots of neat examples in
economics herehttp://siteresources.worldbank.org/DEC/Resources/USING_THE_GLOBAL_POSITIONING_SYSTEM_GPS_IN_HOUSEHOLD_SURVEYS.pdf).
The ability to capture not just coordinates but shapes (e.g., roads,
outlines of agricultural plots, etc.) would be a great boon for researchers.

So, +1 to Mike's question.

Also, has anyone used ODK to capture several GPS waypoints for
constructing shapefiles of things like road networks?

Best,
Arthur

On Tue, Mar 22, 2011 at 3:43 PM, sketchy inabahort@gmail.com wrote:

Hi all,

I'm really impressed with ODK. I'm wondering if it might be possible
to code a question so that a GPS track starts, and a subsequent
question that can stop tracking. If this is possible, the ODK could
serve also as a GPS track database on top of which many GPS analyses
could work.

Do you think this is possible?

Thanks,

Mike

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304-205-9447

--
Eric
304-205-9447

We have used both these methods using a track log app (there are many out
there) and blue tooth GPS connected with the blue tooth app. Works very well
in Android and with ODK collect.

We would basically run mapping app (in this case Maverick Pro or Locus is
looking interesting) which were doing the mapping and track logs and then
use ODK collect when entering full localities details - in our case
vegetation observations.

Thanks

Justin

··· On 22 March 2011 23:55, Eric Meadows wrote:

I use an App called 'GPS Bluetooth' that talks to high accuracy (Sub-meter,
sub-foot) GPS units that are capable of transmitting their NMEA signal via
Bluetooth. I've never tried it through ODK but I do use it sometime to just
collect accurate GPS data via my Android. I will look into seeing how this
may work tomorrow; it is late here now! Typically the GPS I use is either
on a backpack mount or on a survey pole/staff.

On Tue, Mar 22, 2011 at 4:27 PM, Renan Kamimura renankami@gmail.comwrote:

Yes Arthur, but without sucess.

I used ODK collect (geotagger) to improve an foresty inventory... in
tropical forest the trees aren't widespread (trees are near) and i take a
lot of points in a plot. All the points in collect was with the same
coordinate and when a upload data to ODK Aggregate all the points are with
the same corrdinate too.

thus happen with high accurace in gps.

i think that the precision from GPS plus the canopy cover may difficult
this.

someone help ?

best regards

Renan

2011/3/22 Arthur Shaw jashaw2002@gmail.com

Although I am no ODK expert, I doubt this is something that the software
can currently do. However, I think you raise a really interesting idea.

Mapping and GIS analysis are becoming an increasingly more important
parts of the social science research toolkit (see lots of neat examples in
economics herehttp://siteresources.worldbank.org/DEC/Resources/USING_THE_GLOBAL_POSITIONING_SYSTEM_GPS_IN_HOUSEHOLD_SURVEYS.pdf).
The ability to capture not just coordinates but shapes (e.g., roads,
outlines of agricultural plots, etc.) would be a great boon for researchers.

So, +1 to Mike's question.

Also, has anyone used ODK to capture several GPS waypoints for
constructing shapefiles of things like road networks?

Best,
Arthur

On Tue, Mar 22, 2011 at 3:43 PM, sketchy inabahort@gmail.com wrote:

Hi all,

I'm really impressed with ODK. I'm wondering if it might be possible
to code a question so that a GPS track starts, and a subsequent
question that can stop tracking. If this is possible, the ODK could
serve also as a GPS track database on top of which many GPS analyses
could work.

Do you think this is possible?

Thanks,

Mike

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You can specify the accuracy threshold for automatic acceptance of the GPS
coordinates via an accuracyThreshold attribute in the XML.

This is not supported in XLSForm at this time -- after you generate the XML
file using XLSForm, you need to edit the XML file and manually add that
attribute.

Note, however, that this threshold only sets the automatic acceptance limit
-- the data collector can accept a less-accurate GPS value at any time.

With ODK Collect 1.4.3, if you use number(${my_geopoint}), it will return
the captured accuracy, so you can place a constraint on the value to
enforce that it is within your required tolerances.

··· On Wed, May 14, 2014 at 9:34 PM, wrote:

On Tuesday, March 22, 2011 2:47:06 PM UTC-7, Yaw Anokwa wrote:

this is a frequently requested feature and the ongoing work on
external controls (see
http://code.google.com/p/opendatakit/wiki/XFormControlExtensionProposal)
should solve this problem (at least on the mobile side).

for those who need this functionality today, you might want to try
something like http://mytracks.appspot.com to capture tracks in the
background of a data collection session. if you don't need a
background session, you could try a repeating geopoint question to
capture a series of points. accuracy really depends on the device and
the environment. the best i've seen on standard phone (nexus one) is
3m accuracy with clear skies and lots of patience.

On Tue, Mar 22, 2011 at 13:27, Renan Kamimura renankami@gmail.com wrote:

Yes Arthur, but without sucess.
I used ODK collect (geotagger) to improve an foresty inventory... in
tropical forest the trees aren't widespread (trees are near) and i
take a

lot of points in a plot. All the points in collect was with the same
coordinate and when a upload data to ODK Aggregate all the points are
with

the same corrdinate too.
thus happen with high accurace in gps.
i think that the precision from GPS plus the canopy cover may difficult
this.
someone help ?
best regards
Renan

2011/3/22 Arthur Shaw jashaw2002@gmail.com

Although I am no ODK expert, I doubt this is something that the
software

can currently do. However, I think you raise a really interesting
idea.

Mapping and GIS analysis are becoming an increasingly more important
parts

of the social science research toolkit (see lots of neat examples in
economics here). The ability to capture not just coordinates but
shapes

(e.g., roads, outlines of agricultural plots, etc.) would be a great
boon

for researchers.
So, +1 to Mike's question.
Also, has anyone used ODK to capture several GPS waypoints for
constructing shapefiles of things like road networks?
Best,
Arthur
On Tue, Mar 22, 2011 at 3:43 PM, sketchy inabahort@gmail.com wrote:

Hi all,

I'm really impressed with ODK. I'm wondering if it might be possible
to code a question so that a GPS track starts, and a subsequent
question that can stop tracking. If this is possible, the ODK could
serve also as a GPS track database on top of which many GPS analyses
could work.

Do you think this is possible?

Thanks,

Mike

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Hi all,

is their a way we can do this in the xls format? if yes, please give some
info.

ty

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This is all great info. Renan, you can get the GPS working per question, as
I have done, but the trees reduce GPS accuracy. I like Eric's idea to use an
external (stronger) GPS receiver.

I'll check if there is already a thread on good external GPS receivers.

Thanks guys,

Mike

We have used both these methods using a track log app (there are many out
there) and blue tooth GPS connected with the blue tooth app. Works very
well
in Android and with ODK collect.

We would basically run mapping app (in this case Maverick Pro or Locus is
looking interesting) which were doing the mapping and track logs and then
use ODK collect when entering full localities details - in our case
vegetation observations.

Thanks

Justin

I use an App called 'GPS Bluetooth' that talks to high accuracy
(Sub-meter,

sub-foot) GPS units that are capable of transmitting their NMEA signal
via

Bluetooth. I've never tried it through ODK but I do use it sometime to
just

collect accurate GPS data via my Android. I will look into seeing how
this

may work tomorrow; it is late here now! Typically the GPS I use is either
on a backpack mount or on a survey pole/staff.

Yes Arthur, but without sucess.

I used ODK collect (geotagger) to improve an foresty inventory... in
tropical forest the trees aren't widespread (trees are near) and i take
a

lot of points in a plot. All the points in collect was with the same
coordinate and when a upload data to ODK Aggregate all the points are
with

the same corrdinate too.

thus happen with high accurace in gps.

i think that the precision from GPS plus the canopy cover may difficult
this.

someone help ?

best regards

Renan

Although I am no ODK expert, I doubt this is something that the
software

can currently do. However, I think you raise a really interesting idea.

Mapping and GIS analysis are becoming an increasingly more important
parts of the social science research toolkit (see lots of neat examples
in

economics here<
http://siteresources.worldbank.org/DEC/Resources/USING_THE_GLOBAL_POSITIONING_SYSTEM_GPS_IN_HOUSEHOLD_SURVEYS.pdf
).

The ability to capture not just coordinates but shapes (e.g., roads,
outlines of agricultural plots, etc.) would be a great boon for
researchers.

··· On Mar 23, 2011 10:16 AM, "J Moat" wrote: > On 22 March 2011 23:55, Eric Meadows wrote: >> On Tue, Mar 22, 2011 at 4:27 PM, Renan Kamimura >> 2011/3/22 Arthur Shaw >>>> >>>> So, +1 to Mike's question. >>>> >>>> Also, has anyone used ODK to capture several GPS waypoints for >>>> constructing shapefiles of things like road networks? >>>> >>>> Best, >>>> Arthur >>>> >>>> On Tue, Mar 22, 2011 at 3:43 PM, sketchy wrote: >>>> >>>>> Hi all, >>>>> >>>>> I'm really impressed with ODK. I'm wondering if it might be possible >>>>> to code a question so that a GPS track starts, and a subsequent >>>>> question that can stop tracking. If this is possible, the ODK could >>>>> serve also as a GPS track database on top of which many GPS analyses >>>>> could work. >>>>> >>>>> Do you think this is possible? >>>>> >>>>> Thanks, >>>>> >>>>> Mike >>>>> >>>>> -- >>>>> Post: opendatakit@googlegroups.com >>>>> Unsubscribe: opendatakit+unsubscribe@googlegroups.com >>>>> Options: http://groups.google.com/group/opendatakit?hl=en >>>>> >>>> >>>> -- >>>> Post: opendatakit@googlegroups.com >>>> Unsubscribe: opendatakit+unsubscribe@googlegroups.com >>>> Options: http://groups.google.com/group/opendatakit?hl=en >>>> >>> >>> >>> >>> -- >>> Renan A. Kamimura >>> >>> >>> -- >>> Post: opendatakit@googlegroups.com >>> Unsubscribe: opendatakit+unsubscribe@googlegroups.com >>> Options: http://groups.google.com/group/opendatakit?hl=en >>> >> >> >> >> -- >> Eric >> 304-205-9447 >> >> -- >> Post: opendatakit@googlegroups.com >> Unsubscribe: opendatakit+unsubscribe@googlegroups.com >> Options: http://groups.google.com/group/opendatakit?hl=en >> > > -- > Post: opendatakit@googlegroups.com > Unsubscribe: opendatakit+unsubscribe@googlegroups.com > Options: http://groups.google.com/group/opendatakit?hl=en

Mike,
Keep in mind that a more accurate GPS doesn't mean it will necessarily pick
up better under tree canopy (or in cities around tall buildings). Actually
a more accurate GPS usually will get less of a reading, under canopy, when
it can't pick up the number of satellites it requires for it's accuracy;
they generally just don't give you any reading when they can't achieve their
accuracy standard.. Finding a (stronger) GPS unit with a "wider" array
of gathering satellite signals might be less accurate but you'll be more apt
to getting a position under canopy.

··· On Fri, Mar 25, 2011 at 1:43 PM, Mike Inaba wrote:

This is all great info. Renan, you can get the GPS working per question, as
I have done, but the trees reduce GPS accuracy. I like Eric's idea to use an
external (stronger) GPS receiver.

I'll check if there is already a thread on good external GPS receivers.

Thanks guys,

Mike
On Mar 23, 2011 10:16 AM, "J Moat" gistin@gmail.com wrote:

We have used both these methods using a track log app (there are many out
there) and blue tooth GPS connected with the blue tooth app. Works very
well
in Android and with ODK collect.

We would basically run mapping app (in this case Maverick Pro or Locus is
looking interesting) which were doing the mapping and track logs and then
use ODK collect when entering full localities details - in our case
vegetation observations.

Thanks

Justin

On 22 March 2011 23:55, Eric Meadows eric.d.meadows@gmail.com wrote:

I use an App called 'GPS Bluetooth' that talks to high accuracy
(Sub-meter,

sub-foot) GPS units that are capable of transmitting their NMEA signal
via

Bluetooth. I've never tried it through ODK but I do use it sometime to
just

collect accurate GPS data via my Android. I will look into seeing how
this

may work tomorrow; it is late here now! Typically the GPS I use is
either

on a backpack mount or on a survey pole/staff.

On Tue, Mar 22, 2011 at 4:27 PM, Renan Kamimura <renankami@gmail.com wrote:

Yes Arthur, but without sucess.

I used ODK collect (geotagger) to improve an foresty inventory... in
tropical forest the trees aren't widespread (trees are near) and i take
a

lot of points in a plot. All the points in collect was with the same
coordinate and when a upload data to ODK Aggregate all the points are
with

the same corrdinate too.

thus happen with high accurace in gps.

i think that the precision from GPS plus the canopy cover may difficult
this.

someone help ?

best regards

Renan

2011/3/22 Arthur Shaw jashaw2002@gmail.com

Although I am no ODK expert, I doubt this is something that the
software

can currently do. However, I think you raise a really interesting
idea.

Mapping and GIS analysis are becoming an increasingly more important
parts of the social science research toolkit (see lots of neat
examples in

economics here<
http://siteresources.worldbank.org/DEC/Resources/USING_THE_GLOBAL_POSITIONING_SYSTEM_GPS_IN_HOUSEHOLD_SURVEYS.pdf
).

The ability to capture not just coordinates but shapes (e.g., roads,
outlines of agricultural plots, etc.) would be a great boon for
researchers.

So, +1 to Mike's question.

Also, has anyone used ODK to capture several GPS waypoints for
constructing shapefiles of things like road networks?

Best,
Arthur

On Tue, Mar 22, 2011 at 3:43 PM, sketchy inabahort@gmail.com wrote:

Hi all,

I'm really impressed with ODK. I'm wondering if it might be possible
to code a question so that a GPS track starts, and a subsequent
question that can stop tracking. If this is possible, the ODK could
serve also as a GPS track database on top of which many GPS analyses
could work.

Do you think this is possible?

Thanks,

Mike

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