[Digikam-devel] [Bug 133359] New: WISH: Google maps support to show satellite images of the photos

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           Summary: WISH: Google maps support to show satellite images of
                    the photos
           Product: digikam
           Version: unspecified
          Platform: Gentoo Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: wishlist
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: aironmail gmail com


Version:           0.9-svn (using KDE KDE 3.5.4)
Installed from:    Gentoo Packages
OS:                Linux

I have seen in #111560 that the support for gps is in progress, but reading the issue I understand that it will only be useful if a camera can supply the gps coordenates.

I think that it could be nice to have a manual way (for many of as that doesn't have those cameras) to enter the coordenates, and instead of showing a mark in a map, it could open a browser or an embedded window or panel (perhaps konqueror can be embedded in a little panel), showing the satellite view of google maps of the given coordenate. That way one could see all picture associated to real satellite images without needing an expensive camera with an integrated gps. I don't know what would be better, if supply the gps coordenates or the google maps link.

It could be also nice to communicate to the google earth application, with a menu saying something like "show coordenates in google earth",... But well, this is very secundary, as google maps can do mostly the same using just a browser.

It's just an idea that could be a cool plug-in.
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[Gerhard Kulzer]

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------- Additional Comments From gerhard kulzer net  2006-09-01 09:16 -------
Have you read the svn documentation yet?
http://docs.kde.org/development/en/extragear-graphics/digikam/using-kapp-camera.html#using-kapp-gps

A manual way to insert coordinates into images is described there.

Your second wish to open a browser is already implemented with 4 different map engines to select from.

Communication with GoogleEarth might be an option for further development, but it is not as simple as opening a browser window pointing to the GPS data since the GoogleEarth command line options are very basic and subject to change.

Gerhard
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------- Additional Comments From kde colin guthr ie  2006-09-01 11:16 -------
Would it be possible to generate a KMZ file for Google Earth? I don't know what the file format contains, not how difficult it would be to create, but perhaps it is an option? With the KMZ file, you could just load GE with the file as the option?
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------- Additional Comments From kde colin guthr ie  2006-09-01 11:17 -------
Ahh yes. KMZ would be simple to generate - it's just XML (or KML in Googlespeak) + ZIP. May be worth looking into:
http://www.gearthblog.com/blog/archives/2005/09/google_earth_fi.html
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[Gilles Caulier]

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------- Additional Comments From caulier.gilles free fr  2006-09-01 11:21 -------
What is it a KMZ file ?

Gilles
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[Gilles Caulier]

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caulier.gilles free fr changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|general                     |Metadata
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[Gerhard Kulzer]

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------- Additional Comments From gerhard kulzer net  2006-09-01 12:17 -------
GoogleEarth stores its location data in kmz files (zipped kml resp. xml files). To see how it look like just save a location from GoogleEarth to a file.

Gerhard
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------- Additional Comments From Julien.Narboux inria fr  2006-09-01 12:18 -------
KMZ is a xml based file format to add layers (overlays), paths, polygons to a map.

Here is the google tutorial about kml and kmz files:
http://earth.google.com/kml/kml_tut.html

KML files can be opened by google earth.

Now they can be opened using google maps as well.

Simply enter the URL of your KML file into the Google Maps search box and check out your custom map, like the Discovery channel's National Parks tour:
http://maps.google.com/maps?q=http://dsc.discovery.com/utilities/googleearth/nationalparks/nationalparks.kml

It would be nice to have an option to generate a kml file from Digikam albums.
This kml file would contain a mark for each geolocalized picture in the database.

It would be even greter to have a new "Location" tab on the left of Digikam : Albums, Dates, Tags, Location ...

This tab would contain a konqueror "window" which consist in the rendering of the kml file corresponding to the digikam database.

This way we could not only locate one picture but several.
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------- Additional Comments From aironmail gmail com  2006-09-04 10:01 -------
#1. No Gerhard, I didn't read the documentation before your comment. I've been testing the code but not the documentation. Reading it I have understood the plan for the gps support, which looks good.

But, I still think that it's a bit difficult for normal users to add the gps coordenates as everything seems to have to be done using external apps for the image manipulation.

I like the idea of the KML files, in both ways export and import. Having google earth installed is trivial to get the a kml file with the exact coordenates, what I think is one of the easiest way for many people to associate the gps coordenates to an image. So I'm agree with Julien, that it would be really greate to have something saying "Add Location" to an image where a kml file could be imported, as that will avoid the people to even know anything about gps, just take the position from google earth and link it to an image.
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[Fabien-5]

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------- Additional Comments From fabien.ubuntu gmail com  2006-09-05 13:35 -------
I'm not sure it's digikam's job to produce a kml file, which is a specific file format from Google.
It would be better, IMHO, to produce a GPX file with waypoints using the picture location and comments.
Now, google earth can read gpx files. Maybe google map will be able to do that, or  it's very easy to convert the gpx format to kml using gpsbabel. There is even a web frontend to this tool :
http://www.gpsvisualizer.com/gpsbabel/

I think there are great opportunities with geolocation, and we are just at the beginning of a new era :)
Another feature could be to select a zone on a map and to be able to see all pictures from this area...
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------- Additional Comments From aironmail gmail com  2006-09-05 14:04 -------
And reading? Because that would make really easy to import the gps into an
image using digikam.
And reading? Because that would make really easy to import the gps into an image using digikam.<br>
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------- Additional Comments From aironmail gmail com  2006-09-05 14:09 -------
I mean reading kml. I understand your point of writing kml, but reading support could be added, in adition to gpx.

But, yes, a new amazing gps era is coming ;-).
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------- Additional Comments From caulier.gilles free fr  2006-09-05 14:13 -------
Fabien,

> Another feature could be to select a zone on a map and to be able to see all pictures from this area...

We can do it only when GPS info will be stored into Database. Actually, digiKam only use the metadata from file.

For performance reasons, dupplicate some importants metadata to database is mandatory. There is already a file in B.K.O about this subject.

When i said dupplicate metadata to DB, i want mean only the _most_ important for photographer like apperture, exposure time, camera model, camera maker, etc. and of course GPS.

This job is planed later than 0.9.0 issue, because we won't touch the datatbase structure for this release to preserve compatibilty with 0.8.0. Also, there are already a lot of changes in digiKAm with 0.9.0. Cumulate to many changes is dangerous.

But, i love the GPS camera stuff (:=)))

Gilles Caulier
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------- Additional Comments From caulier.gilles free fr  2006-09-05 14:18 -------
Antonio,

My viewpoint to store the GPS info into pictures, is to create a new kipi-plugin for that. It's easy to do using Exiv2 like this tool work do :

http://freefoote.dview.net/linux/corrdoc/concepts.html

Gilles Caulier
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[Arnd Baecker]

On Tue, 5 Sep 2006, Fabien wrote:

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> ------- Additional Comments From fabien.ubuntu gmail com  2006-09-05 13:35 -------
> I'm not sure it's digikam's job to produce a kml file, which is a specific file format from Google.
> It would be better, IMHO, to produce a GPX file with waypoints using the picture location and comments.
> Now, google earth can read gpx files. Maybe google map will be able to do that, or  it's very easy to convert the gpx format to kml using gpsbabel. There is even a web frontend to this tool :
> http://www.gpsvisualizer.com/gpsbabel/
>
> I think there are great opportunities with geolocation, and we are just at the beginning of a new era :)
> Another feature could be to select a zone on a map and to be able to see all pictures from this area...

Yes that would be nice (+ combine with the conventional search methods).

Some related points:

A) Display a map with symbols and thumbnail on mouse-over:

When on a map which has symbols for the places where photos
have been taken, the corresponding thumbnail could be displayed
(and on-click be selected ...)
See http://jrhicks.net/67 for an on-line example...

B) Local storage of maps:

I would also like to see support for maps which a user can store
locally: not always one has a internet connnection and
there are many cases, where publically available maps
are not detailed enough and one has to use scanned maps (etc.).

However, I think that the original question is not yet answered:

How does one most conveniently supply images with GPS information
(if one does not have a GPS device)?
No problem for just one image or a bunch of images
at the same place. But for many?

Somehow something like a list of images to the left and

  ...                 [                    ]
  image_thumb_11      [                    ]
  image_thumb_12      [    MAP             ]
  image_thumb_13      [                    ]
  ....                [                    ]
                      [ Zoom In/Out| Move  ]

Clicking on some position in the MAP associates the corresponding
GPS coordinates to all selected images.

((Thinking of a hike in the mountains very detailed maps
might be needed, hence B) above))

Best, Arnd

P.S.: I just came across:
http://www.carto.net/projects/photoTools/gpsPhoto/
which is a GPL commandline tool to synchronize a gps (gpx)
tracklog with the date/time stamps of the image exif-data.
This even does support RAW (cr2 and nef) in addition to jpeg.
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------- Additional Comments From arnd.baecker web de  2006-09-05 14:49 -------
On Tue, 5 Sep 2006, Fabien wrote:

[bugs.kde.org quoted mail]

Yes that would be nice (+ combine with the conventional search methods).

Some related points:

A) Display a map with symbols and thumbnail on mouse-over:

When on a map which has symbols for the places where photos
have been taken, the corresponding thumbnail could be displayed
(and on-click be selected ...)
See http://jrhicks.net/67 for an on-line example...

B) Local storage of maps:

I would also like to see support for maps which a user can store
locally: not always one has a internet connnection and
there are many cases, where publically available maps
are not detailed enough and one has to use scanned maps (etc.).

However, I think that the original question is not yet answered:

How does one most conveniently supply images with GPS information
(if one does not have a GPS device)?
No problem for just one image or a bunch of images
at the same place. But for many?

Somehow something like a list of images to the left and

  ...                 [                    ]
  image_thumb_11      [                    ]
  image_thumb_12      [    MAP             ]
  image_thumb_13      [                    ]
  ....                [                    ]
                      [ Zoom In/Out| Move  ]

Clicking on some position in the MAP associates the corresponding
GPS coordinates to all selected images.

((Thinking of a hike in the mountains very detailed maps
might be needed, hence B) above))

Best, Arnd

P.S.: I just came across:
http://www.carto.net/projects/photoTools/gpsPhoto/
which is a GPL commandline tool to synchronize a gps (gpx)
tracklog with the date/time stamps of the image exif-data.
This even does support RAW (cr2 and nef) in addition to jpeg.
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------- Additional Comments From caulier.gilles free fr  2006-09-09 09:18 -------
Just a link to a win32 app named 'itags' witch can export GPS data to google earth :

http://www.itagsoftware.awswa.com/screenshots.php

Gilles Caulier
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------- Additional Comments From aironmail gmail com  2006-09-14 23:29 -------
I've made a little fix in the script described in the svn documentation that uses exiftools to set the gps data using the google maps coordenates. The original script only works with folders; it fails with single files. And it doesn't check if the file exists. The new script is:

#!/bin/sh
# exiftool wrapper script for easy commandline use. It treats regex files or whole directories.
#
#                        FMT                  Output
#                "%d deg %d' %.2f"\"    54 deg 59' 22.80"
#                "%d deg %.4f min"      54 deg 59.3800 min
#                "%.6f degrees"         54.989667 degrees

if [ -z $1 ]; then
   echo "Usage: exiftool-gps lat long [alt] file || dir (use signed floating coordinates)"
else

   if  [ -z "$4" ]; then  foo="$3"; alt=0
   else                   foo="$4"; alt=$3
   fi

   echo $foo
   if [ -e "$foo" ] ; then
        lat=$(echo "$1" | awk '{if ($1 < 0) print "S"; else print "N"}')
        lon=$(echo "$2" | awk '{if ($1 < 0) print "W"; else print "E"}')
        # use the following syntax for easy googlian paste of ll=-1.23456,53.345345
        #lon=$(echo "$2" | awk '{if ($2 < 0) print "W"; else print "E"}')
        echo $1, $lat, $2, $lon, $3, $4, $foo

        if [ -d "$foo" ] ; then

            for i in "$foo" ; do    # the selection of files treated depend on the passed regex
                echo "i= "$i
                exiftool -c "%.6f" -GPSMapDatum="WGS-84" -GPSAltitude=$alt \
                -GPSLongitudeRef=$lon -GPSLongitude=$2 -GPSLatitudeRef=$lat -GPSLatitude=$1 "$i"
                exiftool -GPS:ALL "$i"  # read back
            done
        else

            exiftool -c "%.6f" -GPSMapDatum="WGS-84" -GPSAltitude=$alt \
            -GPSLongitudeRef=$lon -GPSLongitude=$2 -GPSLatitudeRef=$lat -GPSLatitude=$1 "$foo"
            exiftool -GPS:ALL "$foo"  # read back
        fi
   else echo "file or folder is wrong"
   fi
fi
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------- Additional Comments From aironmail gmail com  2006-09-14 23:31 -------
Created an attachment (id=17774)
 --> (http://bugs.kde.org/attachment.cgi?id=17774&action=view)
Fixed exiftools-gps script

Probably it's better if I attach the script.
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------- Additional Comments From gerhard kulzer net  2006-09-15 00:06 -------
I'm surprised, the script worked well with files and folders for me (-d tests both)
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