ID

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1808
by ahpoder
Sep 10, 2008
6:57 AM

Being evaluated

In order to better get the accurate speed it is required to modify the sample frequency. For this reason an equation is added along with some default calculations as to reccomended sample frequency. Also adding the some minor fixes and a precision showing the DOP accuracy and the number of sattelites employed.

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1775
by ahpoder
Sep 3, 2008
6:49 AM

Being evaluated

As I use this for running I would like to also have the time it has taken me to travel the distance, and for this reason I have added a time field. I have also added a precission field to show the DOP - precision as well as the number of sattelites currently employed. I have also modified the Track checkbox so it is functional as runtime and not just when you press start. It will however not stop the distance calculation and the time, so it mainly serves to limit the RAM requirements, as it does not add to the GPX collection.

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1774
by ahpoder
Sep 3, 2008
5:58 AM

Being evaluated

See previous path, as there was changes to more than one file.

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1773
by ahpoder
Sep 3, 2008
5:57 AM

Being evaluated

Using simple spherical math it is possible to calculate a distance based on the GPS measurements. As I wanted this functionality I have added it to the program. It has a 50m schmidt-trigger-like functionality to prevent the calculating of distances when the system jumps back and forth between two locations. At present the system uses a simple 50m minimal distance change in order to consider the change valid, as 50m is about the worst case precision, yet the algorithm should be dependent on the quality of the signal-fix, which can be extracted from the GPS API. Naturally it is not 100% accurate, as the locations may jump a little to the sides, as well as a sharp turn may not be included. I find however that over 10km the inaccuracy is less than 5%

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1764
by ahpoder
Sep 1, 2008
7:14 AM

Being evaluated

As it is at first difficult to know what the error is, if you forget to specify a file name in the My Documents folder, a default route name will be specified when opening FrmSaveData.

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1763
by ahpoder
Sep 1, 2008
7:12 AM

Being evaluated

As it is quite error prone to use the Save functionality, some error handling has been added to validate input and catch exceptions when saving locally. Also adding a message box if attempting to save toserver, as this functionality is not implemented. Also adding validating of ongoing tracking when using waypoint.

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1762
by ahpoder
Sep 1, 2008
7:07 AM

Being evaluated

As I have not been able to get Virtual Earth to work ,and the reccomended visualizer of GPX data (http://www.gpsvisualizer.com/) does not work with the GPX format implemented by the GPS Tracker. For this reason the gpx.cs was updated to support gpsvisualizer format. It should still be compatible, as it is merely an extra schema definition.

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