Besides the 1-Click Geotagging there is another geotagging mode available in myTracks. The workflow looks different. The photos are not automatically synchronized with the tracks but they are put into a pool first. Then you have the full control over time zone, time correction, etc. For each single photo you can decide how the geotagging has to be performed (previous track point, next track point, interpolation, etc.).

In the preferences dialog on page General please select Extended assignment using pool of photos for Geotagging Mode if you want to use the extended geotagging mode. After importing photos the pool of photos looks like that:

You have to specify the time zone of the photos in the upper section. You can specify a time correction in the line below if the clock of your camera has not been set correctly for example.

A list of all imported photos is shown in the area below. A preview of a photo is shown in the upper right area if you select a photo from the list. Additionally, myTracks calculates the previous, the next and an interpolated track point. The results are shown in the corresponding rows in the pool of photos. And on the map colored pins show the calculated locations. Additionally, already existing EXIF information is shown and the location of the center of the map.

Now you can decide for each single photo what to do:

  1. Click Track in the corresponding row if you want to assign the photo to the track actually selected. The photo will be removed from the pool and assigned to the track. A new track point will be added to the track if you select Interpolate or EXIF. In this step no EXIF tags are written to the files but the photos are only assigned to tracks. You have to use the red geotagging button in the photo list (not in the pool window) to finally write the EXIF tags to the files.
  2. Click GeoTag in the corresponding row if you do not want to assign the photos to the track but if you only want to write the EXIF tags to the files. Use the GeoTag Mode option in the upper part of the pool of photos to specify which EXIF tags are finally written to the files.

The following screencast (no audio) shows how to work with the pool of photos:

Start Screencast

The pool of photos does also directly update the location information of photos in iPhoto '09. Thus, if you click a Track or GeoTag button the location information is written to the iPhoto '09 database immediately. But if you use iPhoto '11 the location is not written to iPhoto's database automatically. But you have to write the GPS coordinates to the photo files first. This is done by either clicking a GeoTag button or by using the red geotagging button below the list of photos if you have assigned the photos to a track. Finally you have to update iPhoto's database by selecting "Rescan for loaction" in iPhoto's Photos menu.

The following screencast (no audio) shows how to work iPhoto '11 and the pool of photos:

Start Screencast

Batch Processing

Even if you work with the pool of photos you can use an automatic mode (batch processing). First, you have to specify the rules for the batch processing. Click the Options... button to open the following dialog:

Here you can specify in which conditions a photo will be processed automatically. E.g. you can specify that a photo belongs to the nearest track point if the time span is below the specified limit.

The list of photos has a column Batch Preview (see first screenshot). This column shows whether the photo would be processed during the batch processing. Additionally, in the map grey pins are shown for those photos that would be processed.

Click the Start button to perform the batch processing. After clicking the button a dialog will appear asking for the batch mode. Now you can decide whether the photos will be assigned to the track (click Track) or the EXIF tags are written directly (click GeoTag).

The following screencast (no audio) shows the automatic assignment using the pool of photos:

Start Screencast

Time Correction

Sonetime it happens that the clock of your camera was not set correctly. In that case you have to specify the time difference between the camera clock and the GPS clock. You can do that manually by modifying the time shift values. But it is much simply with myTracks drag & drop mode. Just select a photo where you know the exact location. Then drag that photo to the map. myTracks will search for the track point nearest to the mouse pointer and automatically calculates the time correction. The calculated locations of all other photos are also calculated and shown as grey pins on the map. If you have found the correct location release the mouse button. Afterwards you should check the time correction by selecting some other photos. If the time correction is not yet correct you can either modify it manually or just drag & drop a photo again.

The following screencast (no audio) shows the time correction using a reference photo:

Start Screencast

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