Originally Posted by tomeclipse
When importing routes into Open CPN 4.0.0, about 10% of the Lats & Longitudes are off by about 30 seconds. These routes were created in Open CPN 4.0.0 and then saved on my hardrive to be later uploaded to my GPS
. However, a few days ago my Open CPN crashed loosing some of my routes so I was surprised when I imported the routes back into Open CPN and they were wrong.
I opened the same route
files in Mapsource & Homeport and the Lats & longitudes are correct. I have re-entered the correct data into Open CPN, so my problem is solved
. Just thought others would want to know about the problem I have.
You seem to be saying that the routes displayed correctly on O4 before the crash (since they were created there), and were exported to .gpx and displayed correctly in Mapsource and Homeport, but after the crash you imported the same files and they were off by 30"?
If so, I think it would be helpful for you to import
the original (non-corrected) files back into O4 again, verify that they still have the 30" error, then re-export them to a different gpx file.
Then, using a text editor, open both the original and re-exported files side-by-side for comparison. You could also paste each file into adjacent columns in Excel, and write a comparison formula (or conditional formatting) to highlight the differences.