Hi,
I wanted to check if there is any interest in adding an area() function to
the core JavaRosa libraries that would calculate the area of a node with
type=geoshape.
If so, I could implement this in Enketo's JavaScript XPath evaluator for
(relatively) straightforward porting to JavaRosa by an ODK dev. If there is
no interest, I'll implement it outside of XPath and use a leaflet plugin
instead.
Cheers,
Martijn
Martijn,
Seems like it'd be a useful feature to have in XPath...
Yaw
On Mon, Jun 23, 2014 at 7:17 AM, Martijn van de Rijdt martijn@enketo.org wrote:
Hi,
I wanted to check if there is any interest in adding an area() function to
the core JavaRosa libraries that would calculate the area of a node with
type=geoshape.If so, I could implement this in Enketo's JavaScript XPath evaluator for
(relatively) straightforward porting to JavaRosa by an ODK dev. If there is
no interest, I'll implement it outside of XPath and use a leaflet plugin
instead.Cheers,
Martijn--
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Is anybody against having the area() function added?
I'm looking for a developer who is comfortable with the JavaRosa library
to add this. I think the algorithm can be similar to this
https://github.com/Leaflet/Leaflet.draw/blob/3cba37065ea5be28f42efe9cc47836c9e3f5db8c/src/ext/GeometryUtil.js#L3-L20 so
not including curvature of the Earth and altitude. If somebody is
interested and able to do this in the next 2-3 weeks, please contact me so
we can discuss further and I can send a quote to my client.
Cheers,
Martijn
Hi Martijn,
We added enclosed-area() and distance-between() functions into SurveyCTO a
few versions back, using repeated geopoint observations (so no fancy new
data types). A customer had partially subsidized the development for that,
and we could port that code to a new data type and open-source if somebody
would further subsidize the effort. The might be the cheapest and quickest
approach since we already have working code in the field (and a customer
who has already paid for about half of it). Please just email me offline if
you want to discuss further.
Thanks,
Chris
Is anybody against having the area() function added?
I'm looking for a developer who is comfortable with the JavaRosa
library to add this. I think the algorithm can be similar to this
https://github.com/Leaflet/Leaflet.draw/blob/3cba37065ea5be28f42efe9cc47836c9e3f5db8c/src/ext/GeometryUtil.js#L3-L20 so
not including curvature of the Earth and altitude. If somebody is
interested and able to do this in the next 2-3 weeks, please contact me so
we can discuss further and I can send a quote to my client.Cheers,
MartijnOn Monday, June 23, 2014 8:26:46 AM UTC-6, Yaw Anokwa wrote:
Martijn,
Seems like it'd be a useful feature to have in XPath...
Yaw
Need ODK services? http://nafundi.com provides form design, server
setup, professional support, and software development for ODK.On Mon, Jun 23, 2014 at 7:17 AM, Martijn van de Rijdt mar...@enketo.org wrote:
Hi,
I wanted to check if there is any interest in adding an area() function
to
the core JavaRosa libraries that would calculate the area of a node
with
type=geoshape.If so, I could implement this in Enketo's JavaScript XPath evaluator
for
(relatively) straightforward porting to JavaRosa by an ODK dev. If
there is
no interest, I'll implement it outside of XPath and use a leaflet
plugin
instead.Cheers,
Martijn--
You received this message because you are subscribed to the Google
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"ODK Developers" group.
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an
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Thanks Chris, I've emailed you.
One thing I forgot to mention and would like to get feedback on is the
UNITS that area() produces. I suggest those should be m2. Agreed?
m2 - agreed. The accuracy is in meters, so it makes sense to keep that.
Thanks Chris, I've emailed you.
One thing I forgot to mention and would like to get feedback on is the
UNITS that area() produces. I suggest those should be m2. Agreed?On Tuesday, July 29, 2014 10:40:21 AM UTC-6, Christopher Robert wrote:
Hi Martijn,
We added enclosed-area() and distance-between() functions into SurveyCTO
a few versions back, using repeated geopoint observations (so no fancy new
data types). A customer had partially subsidized the development for that,
and we could port that code to a new data type and open-source if somebody
would further subsidize the effort. The might be the cheapest and quickest
approach since we already have working code in the field (and a customer
who has already paid for about half of it). Please just email me offline if
you want to discuss further.Thanks,
Chris
On Tue, Jul 29, 2014 at 12:33 PM, Martijn van de Rijdt <mar...@enketo.org wrote:
Is anybody against having the area() function added?
I'm looking for a developer who is comfortable with the JavaRosa
library to add this. I think the algorithm can be similar to this
https://github.com/Leaflet/Leaflet.draw/blob/3cba37065ea5be28f42efe9cc47836c9e3f5db8c/src/ext/GeometryUtil.js#L3-L20 so
not including curvature of the Earth and altitude. If somebody is
interested and able to do this in the next 2-3 weeks, please contact me so
we can discuss further and I can send a quote to my client.Cheers,
MartijnOn Monday, June 23, 2014 8:26:46 AM UTC-6, Yaw Anokwa wrote:
Martijn,
Seems like it'd be a useful feature to have in XPath...
Yaw
Need ODK services? http://nafundi.com provides form design, server
setup, professional support, and software development for ODK.On Mon, Jun 23, 2014 at 7:17 AM, Martijn van de Rijdt mar...@enketo.org wrote:
Hi,
I wanted to check if there is any interest in adding an area()
function to
the core JavaRosa libraries that would calculate the area of a node
with
type=geoshape.If so, I could implement this in Enketo's JavaScript XPath evaluator
for
(relatively) straightforward porting to JavaRosa by an ODK dev. If
there is
no interest, I'll implement it outside of XPath and use a leaflet
plugin
instead.Cheers,
Martijn--
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Groups
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--
Mitch Sundt
Software Engineer
University of Washington
mitchellsundt@gmail.com
Does anybody have an objection to calling this function: enclosed-area()
instead? I'm happy with that name.
Cheers,
Martijn
What other area could there be? Seems like there is no other kind...
Yaw
On Mon, Aug 4, 2014 at 9:46 AM, Martijn van de Rijdt martijn@enketo.org wrote:
Does anybody have an objection to calling this function: enclosed-area()
instead? I'm happy with that name.Cheers,
MartijnOn Thursday, July 31, 2014 10:16:24 AM UTC-6, Mitch wrote:
m2 - agreed. The accuracy is in meters, so it makes sense to keep that.
On Tue, Jul 29, 2014 at 1:48 PM, Martijn van de Rijdt mar...@enketo.org wrote:
Thanks Chris, I've emailed you.
One thing I forgot to mention and would like to get feedback on is the
UNITS that area() produces. I suggest those should be m2. Agreed?On Tuesday, July 29, 2014 10:40:21 AM UTC-6, Christopher Robert wrote:
Hi Martijn,
We added enclosed-area() and distance-between() functions into SurveyCTO
a few versions back, using repeated geopoint observations (so no fancy new
data types). A customer had partially subsidized the development for that,
and we could port that code to a new data type and open-source if somebody
would further subsidize the effort. The might be the cheapest and quickest
approach since we already have working code in the field (and a customer who
has already paid for about half of it). Please just email me offline if you
want to discuss further.Thanks,
Chris
On Tue, Jul 29, 2014 at 12:33 PM, Martijn van de Rijdt mar...@enketo.org wrote:
Is anybody against having the area() function added?
I'm looking for a developer who is comfortable with the JavaRosa
library to add this. I think the algorithm can be similar to this so not
including curvature of the Earth and altitude. If somebody is interested and
able to do this in the next 2-3 weeks, please contact me so we can discuss
further and I can send a quote to my client.Cheers,
MartijnOn Monday, June 23, 2014 8:26:46 AM UTC-6, Yaw Anokwa wrote:
Martijn,
Seems like it'd be a useful feature to have in XPath...
Yaw
Need ODK services? http://nafundi.com provides form design, server
setup, professional support, and software development for ODK.On Mon, Jun 23, 2014 at 7:17 AM, Martijn van de Rijdt mar...@enketo.org wrote:
Hi,
I wanted to check if there is any interest in adding an area()
function to
the core JavaRosa libraries that would calculate the area of a node
with
type=geoshape.If so, I could implement this in Enketo's JavaScript XPath evaluator
for
(relatively) straightforward porting to JavaRosa by an ODK dev. If
there is
no interest, I'll implement it outside of XPath and use a leaflet
plugin
instead.Cheers,
Martijn--
You received this message because you are subscribed to the Google
Groups
"ODK Developers" group.
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Mitch Sundt
Software Engineer
University of Washington
mitche...@gmail.com--
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I agree with Yaw. Unless there is another type of area I would just call
it area.
What other area could there be? Seems like there is no other kind...
Yaw
Need ODK services? http://nafundi.com provides form design, server
setup, professional support, and software development for ODK.On Mon, Aug 4, 2014 at 9:46 AM, Martijn van de Rijdt martijn@enketo.org wrote:
Does anybody have an objection to calling this function: enclosed-area()
instead? I'm happy with that name.Cheers,
MartijnOn Thursday, July 31, 2014 10:16:24 AM UTC-6, Mitch wrote:
m2 - agreed. The accuracy is in meters, so it makes sense to keep that.
On Tue, Jul 29, 2014 at 1:48 PM, Martijn van de Rijdt < mar...@enketo.org> wrote:
Thanks Chris, I've emailed you.
One thing I forgot to mention and would like to get feedback on is the
UNITS that area() produces. I suggest those should be m2. Agreed?On Tuesday, July 29, 2014 10:40:21 AM UTC-6, Christopher Robert wrote:
Hi Martijn,
We added enclosed-area() and distance-between() functions into
SurveyCTO
a few versions back, using repeated geopoint observations (so no
fancy new
data types). A customer had partially subsidized the development for
that,
and we could port that code to a new data type and open-source if
somebody
would further subsidize the effort. The might be the cheapest and
quickest
approach since we already have working code in the field (and a
customer who
has already paid for about half of it). Please just email me offline
if you
want to discuss further.Thanks,
Chris
On Tue, Jul 29, 2014 at 12:33 PM, Martijn van de Rijdt mar...@enketo.org wrote:
Is anybody against having the area() function added?
I'm looking for a developer who is comfortable with the JavaRosa
library to add this. I think the algorithm can be similar to this so
not
including curvature of the Earth and altitude. If somebody is
interested and
able to do this in the next 2-3 weeks, please contact me so we can
discuss
further and I can send a quote to my client.Cheers,
MartijnOn Monday, June 23, 2014 8:26:46 AM UTC-6, Yaw Anokwa wrote:
Martijn,
Seems like it'd be a useful feature to have in XPath...
Yaw
Need ODK services? http://nafundi.com provides form design, server
setup, professional support, and software development for ODK.On Mon, Jun 23, 2014 at 7:17 AM, Martijn van de Rijdt mar...@enketo.org wrote:
Hi,
I wanted to check if there is any interest in adding an area()
function to
the core JavaRosa libraries that would calculate the area of a
node
with
type=geoshape.If so, I could implement this in Enketo's JavaScript XPath
evaluator
for
(relatively) straightforward porting to JavaRosa by an ODK dev. If
there is
no interest, I'll implement it outside of XPath and use a leaflet
plugin
instead.Cheers,
Martijn--
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Groups
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Mitch Sundt
Software Engineer
University of Washington
mitche...@gmail.com--
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The other area would be the area of the convex-hull -- if the boundary is
non-convex (e.g., star-shaped), then the enclosed-area would differ from
the area of the convex hull (the area enclosed by the polygon consisting of
the points at the tips of the star's arms).
I think area() suffices. Using enclosed-area() just makes people ponder
Matt's question.
I agree with Yaw. Unless there is another type of area I would just call
it area.On Mon, Aug 4, 2014 at 7:48 PM, Yaw Anokwa yanokwa@nafundi.com wrote:
What other area could there be? Seems like there is no other kind...
Yaw
Need ODK services? http://nafundi.com provides form design, server
setup, professional support, and software development for ODK.On Mon, Aug 4, 2014 at 9:46 AM, Martijn van de Rijdt martijn@enketo.org wrote:
Does anybody have an objection to calling this function: enclosed-area()
instead? I'm happy with that name.Cheers,
MartijnOn Thursday, July 31, 2014 10:16:24 AM UTC-6, Mitch wrote:
m2 - agreed. The accuracy is in meters, so it makes sense to keep that.
On Tue, Jul 29, 2014 at 1:48 PM, Martijn van de Rijdt < mar...@enketo.org> wrote:
Thanks Chris, I've emailed you.
One thing I forgot to mention and would like to get feedback on is the
UNITS that area() produces. I suggest those should be m2. Agreed?On Tuesday, July 29, 2014 10:40:21 AM UTC-6, Christopher Robert wrote:
Hi Martijn,
We added enclosed-area() and distance-between() functions into
SurveyCTO
a few versions back, using repeated geopoint observations (so no
fancy new
data types). A customer had partially subsidized the development for
that,
and we could port that code to a new data type and open-source if
somebody
would further subsidize the effort. The might be the cheapest and
quickest
approach since we already have working code in the field (and a
customer who
has already paid for about half of it). Please just email me offline
if you
want to discuss further.Thanks,
Chris
On Tue, Jul 29, 2014 at 12:33 PM, Martijn van de Rijdt mar...@enketo.org wrote:
Is anybody against having the area() function added?
I'm looking for a developer who is comfortable with the JavaRosa
library to add this. I think the algorithm can be similar to this
so not
including curvature of the Earth and altitude. If somebody is
interested and
able to do this in the next 2-3 weeks, please contact me so we can
discuss
further and I can send a quote to my client.Cheers,
MartijnOn Monday, June 23, 2014 8:26:46 AM UTC-6, Yaw Anokwa wrote:
Martijn,
Seems like it'd be a useful feature to have in XPath...
Yaw
Need ODK services? http://nafundi.com provides form design, server
setup, professional support, and software development for ODK.On Mon, Jun 23, 2014 at 7:17 AM, Martijn van de Rijdt mar...@enketo.org wrote:
Hi,
I wanted to check if there is any interest in adding an area()
function to
the core JavaRosa libraries that would calculate the area of a
node
with
type=geoshape.If so, I could implement this in Enketo's JavaScript XPath
evaluator
for
(relatively) straightforward porting to JavaRosa by an ODK dev.
If
there is
no interest, I'll implement it outside of XPath and use a leaflet
plugin
instead.Cheers,
Martijn--
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Mitch Sundt
Software Engineer
University of Washington
mitche...@gmail.com--
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Mitch Sundt
Software Engineer
University of Washington
mitchellsundt@gmail.com
Thanks Yay, Matt, Mitch. Agreed. Area() it is then!