Tracks shifted by about 500m eastward

[Akira F]

Hi

Thank you very much for developing a great software Routeconverter.

I am using it to draw tracks on a map from the GPS file created by a drive recorder.

However, recently the tracks drawn on the map were shifted by about 500m eastward as shown on the attached screen shots. I also attach the GPS file (nmea format, compressed in zip)).
I think this problem did not occur before early June. 

It would be appreciated very much if this error could be corrected.

Akira F


  Track160720.jpg (Size: 486.78 KB / Downloads: 703)
  Track160720 enlarged.jpg (Size: 442.76 KB / Downloads: 727)
  Track160720nmea.zip (Size: 177.29 KB / Downloads: 630)

[routeconverter]

Thank you very much for developing a great software Routeconverter.

Dear Akira,

thank you very much for your posting. Makes me smile    

However, recently the tracks drawn on the map were shifted by about 500m eastward as shown on the attached screen shots. I also attach the GPS file (nmea format, compressed in zip)).
I think this problem did not occur before early June. 

There is a new feature in RouteConverter 2.18 that tries to automatically reverse map distortions for China. I choose a very simple definition for what China not is:

Code:

   public static boolean outOfChina(double lat, double lng) {
       if ((lng < 72.004) || (lng > 137.8347)) {
           return true;
       }
       if ((lat < 0.8293) || (lat > 55.8271)) {
           return true;
       }
       return false;
   }

You happen to have a track that is definitely outside of China but fails with my automatism. 


There is a solution: turn the automatic fix off in Extras/Options/Map/Fix for China

[Akira F]

Dear Christian

Thank you very much for your quick reply.
I tried the suggested solution, and it worked.

Thank you very much again.

Akira F