Altitude wrong (offset) in Weglide compared to SeeYou

[UliBrunet]

Describe the bug In flight https://www.weglide.org/flight/240697 there seems to be an offset of about minus 200m of the Altitude shown. If the Logfile is opened in SeeYou, the correct altitude is shown.

To Reproduce Steps to reproduce the behavior:

1. Go to https://www.weglide.org/flight/240697
2. Download the ICG file
3. Openit in SeeYou
4. See error

Expected behavior correct display in WeGlide

Screenshots n/a

Device (please complete the following information):

• Device: LX8040
• OS: LX
• Browser Firefox

[k-grosser]

I encountered a similar issue:

Describe the bug I uploaded some old flights from OLC, several of them have a large altitute offset from around +850m and are thus shown as invalid with a QNH out of range, although the flights were originally valid with correct altitude in OLC and at the time SeeYou.

To Reproduce See, e.g., https://www.weglide.org/flight/262084 on we glide and its counterpart on OLC https://www.onlinecontest.org/olc-3.0/gliding/flightinfo.html?dsId=1416966#map=

Expected behavior correct display in WeGlide

Screenshots Altitude weglide

Altitude OLC

Device (please complete the following information):

• Device: LX5000IGC
• OS: LX
• Browser Firefox

[moldhouse]

These are, in fact, two separate issues. The first one was an incorrect altitude when the recording started in the air, which is now fixed. Thanks for making us aware @UliBrunet.

The second one concerns a wrong pressure altitude in the file. @k-grosser, your pressure altitude at the start is written as 1200m, so there seems to be a problem with the logger. It is right to display the error message, but we should still correct the altitude with ground level and GPS altitude, which is also now fixed.