Filtering a GPS Active Log for download to GPS
Filtering a GPS Active Log for download to GPS
Ged,
There is a track and a very short route in that file. The track shows 99% of the B1 path. The short little route is only to make up for a piece of the track that was not correct where Joker's GPS lost signal for a few hundred meters (near Homfray Lake and waypoint 008)
Is it possible that your GPS truncated the track when you downloaded it? The 60CSx, like most GPSs, only lets you import a track with 500 points. The B1 track that we sent you has almost 4000 points. The trick is to save a new filtered version of the track in Mapsource that has 500 points or less. Then you have the large accurate track for Mapsource and the smaller 500-point track for your GPS.
You can filter a track in Mapsource as follows:
- Open the LSDS_B1_2010.gdb file in mapsource
- Select Edit>SaveAs and save the file as LSDS_B1_filtered (or some such name)
- Select the 'Tracks' tab in the left hand navigation window
- Doubleclick the Active Log track and it will open the Track Properties dialog
- Rename the track to B1_Filtered or some such name
- Push the 'Filter' button in Track Properties
- Select to filter the 'Entire Track' to a maximum of 500 points
- Save the track and close Track Properties
- Select Edit>Save on Mapsource to save the file.
If you want to be fancy, right click on the track in the navigation window ("B1_Filtered") and select Copy. Close the mapsource file and re-open the original LSDS_B1_2010.gdb file in Mapsource. Select the Tracks tab in the navigation pane and right click in the Tracks area, select Paste and it should put you filtered track in beside your unfiltered track. Save your Mapsource file for next time.
Then send your new filtered track to the GPS. Hopefully the entire thing will be visible.
Did you fall asleep reading the above? PM me your email address and I'll send you a filtered track.
G
