[Qgis-user] R: Android Camera App with compass bearing

Randal Hale rjhale at northrivergeographic.com
Wed Nov 5 08:06:22 PST 2014


I've got an android phone running cyanogenmod and geopaparazzi....it's 
taking pics but like you I'm having a hard time finding them....

I exported the project to /storage/emulated/0 but I don't see the pic.....

Randy


On 11/05/2014 10:47 AM, AlpImage wrote:
>
> Hi
>
> As I have both sw installed in my phone, i shot a pic and I tested 
> these 2 sw, reading the exif data with an online reader:
>
> Geopaparazzi:
>
> GPS
>
> GPS Latitude Ref North
>
> GPS Latitude 45.543404 degrees
>
> GPS Longitude Ref East
>
> GPS Longitude 8.072008 degrees
>
> GPS Altitude 419 m
>
> GPS Time Stamp 15:13:20
>
> GPS Img Direction 187.56
>
> GPS Date Stamp 2014:11:05
>
> GPS Essentials:
>
> GPS
>
> GPS Latitude Ref North
>
> GPS Latitude 45.543367 degrees
>
> GPS Longitude Ref East
>
> GPS Longitude 8.072114 degrees
>
> GPS Altitude Ref Above Sea Level
>
> GPS Altitude 368.3999938 m
>
> GPS Speed Ref km/h
>
> GPS Speed 0.071999998
>
> GPS Date Stamp 2014:11:05
>
> The only problem is where to find images in the phone directories…
>
> Ciao
>
> Emanuele
>
> *Da:*qgis-user-bounces at lists.osgeo.org 
> [mailto:qgis-user-bounces at lists.osgeo.org] *Per conto di *Randal Hale
> *Inviato:* mercoledì 5 novembre 2014 14:57
> *A:* qgis-user at lists.osgeo.org; zoltans at geograph.co.za
> *Oggetto:* Re: [Qgis-user] Android Camera App with compass bearing
>
> Hopefully this isn't going too off topic - so last year found me in 
> the Caribbean working on an addressing project.
>
> I ended up using the Fulcrum app (not free) but it's really really 
> good. I used it in conjunction with QGIS and PostGIS. Everything is 
> stored in the "cloud" and you can download it in just about any format.
>
> Take a look at this: 
> http://fulcrumapp.com/blog/viewing-photo-metadata/ it seems as though 
> it now is collecting direction (I need to go test this).
>
> Randy
>
> On 11/05/2014 08:39 AM, Zoltan Szecsei wrote:
>
>     Hi,
>     Thanks for the thought - but see orange text below: Does not write
>     bearing into EXIF fields.
>     Regards,
>     Zoltan
>
>     On 2014/11/05 12:17, Lene Fischer wrote:
>
>         GPS Essentials - App
>
>           
>
>         Regards
>
>         Lene
>
>           
>
>         -----Oprindelig meddelelse-----
>
>         Fra:qgis-user-bounces at lists.osgeo.org  <mailto:qgis-user-bounces at lists.osgeo.org>  [mailto:qgis-user-bounces at lists.osgeo.org] På vegne af Zoltan Szecsei
>
>         Sendt: 5. november 2014 07:02
>
>         Til:tech at wildintellect.com  <mailto:tech at wildintellect.com>;qgis-user at lists.osgeo.org  <mailto:qgis-user at lists.osgeo.org>
>
>         Emne: Re: [Qgis-user] Android Camera App with compass bearing
>
>           
>
>         Hi Alex/All,
>
>         Thanks for the thoughts - my comments interspersed with your.
>
>           
>
>         Kind regards,
>
>         Zoltan
>
>           
>
>         On 2014/11/04 23:17, Alex Mandel wrote:
>
>             On 11/04/2014 04:55 AM, Zoltan Szecsei wrote:
>
>                 Hi,
>
>                 I need to do a field trip and take some photos.
>
>                 I've been googling around, but cannot find an app that will burn both
>
>                 GPS position _and compass bearing_ into either the image, or just the
>
>                 exif data for that image.
>
>                   
>
>                 Anyone got any experience in this need?
>
>                   
>
>                 Thanks & regards,
>
>                 Zoltan
>
>                   
>
>                   
>
>             Maybe,http://geopaparazzi.github.io/geopaparazzi/
>
>             "georeferenced and orientated pictures"
>
>               
>
>             And now my long rant before I remembered the above link...
>
>         *I manually downloaded the latest version (newer than that on Play Store) and it still does not record bearing*  - even though the app does have a bearing tool.
>
>         I checked the website and recording bearing into EXIF is not even on the developer's long wish-list I have emailed the developer, with a hope to at least get it onto the wish-list.
>
>             GPS data is an on/off toggle on most Android devices. Bearing does
>
>             appear possible according to the exif specs, but in practice is rare.
>
>             http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/GPS.html  <http://www.sno.phy.queensu.ca/%7Ephil/exiftool/TagNames/GPS.html>
>
>         Yes, I checked that last night too - TAGs 0x0017 and 0x0018 relate to bearing info.
>
>             However I don't see any obvious apps for telling the phone you want to
>
>             capture that. I'm also not sure all phones are capable of calculating
>
>             bearing when not moving.
>
>               
>
>             So my suggested work around would be a GPS Logging application of
>
>             which there are several. Then you can pull the bearing calculation out
>
>             after the fact, if it was while moving.
>
>         Sigh, nope.
>
>         (In my kind of) Field trip data collection (& photography) often involves driving to a feature, leaning out the car window and taking a snap-shot, so recording moving direction will not help at all.
>
>         Note that bearing accuracy is NOT that critical, it needs only to be reasonably indicative.
>
>             If stationary, you might need to write your own app which lets users
>
>             indicate which way they were facing when taking a picture. For someone
>
>             who's made an Android application I don't think this is hard.
>
>             http://developer.android.com/guide/topics/sensors/sensors_overview.htm
>
>             l Indicates all version of Android support the Magentic sensor.
>
>               
>
>             This example shows how to get the bearing from the API
>
>             https://www.codeofaninja.com/2013/08/android-compass-code-example.html
>
>             So GPS+Orientation+Camera should be all required.
>
>         Yep, true, but the purpose of this thread is to see if this wheel has already been invented :-)
>
>             Kinda busts my GPS logging idea, since the bearing information comes
>
>             from a different sensor than the GPS it won't be in the NMEA strings
>
>             even if you captured them.
>
>         What? You not 'hard core' enough to intercept the NMEA stream and insert "bearing-on-the-fly" by back-calculating the incoming coords?
>
>         (Just pulling your leg - thanks for your interest in this topic :-) )
>
>             Thanks,
>
>             Alex
>
>           
>
>
>
>
>     -- 
>
>       
>
>     ===========================================
>
>     Zoltan Szecsei PrGISc [PGP0031]
>
>     Geograph (Pty) Ltd.
>
>     GIS and Photogrammetric Services
>
>       
>
>     P.O. Box 7, Muizenberg 7950, South Africa.
>
>       
>
>     Mobile: +27-83-6004028
>
>     Fax:    +27-86-6115323www.geograph.co.za  <http://www.geograph.co.za>
>
>     ===========================================
>
>
>
>
>     _______________________________________________
>
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>
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>
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>
>
>
> -- 
> -----------------
> Randal Hale
> North River Geographic Systems, Inc
> http://www.northrivergeographic.com
> 423.653.3611rjhale at northrivergeographic.com  <mailto:rjhale at northrivergeographic.com>
> twitter:rjhalehttp://about.me/rjhale
> http://www.northrivergeographic.com/spatial-connect

-- 
-----------------
Randal Hale
North River Geographic Systems, Inc
http://www.northrivergeographic.com
423.653.3611 rjhale at northrivergeographic.com
twitter:rjhale     http://about.me/rjhale
http://www.northrivergeographic.com/spatial-connect

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