Incorrect elevation gain and loss in the route statistics

[guoke]

Have been using OruxMaps 4.x for several years, and everything looks good.



And about 1 months ago I upgraded to OruxMaps 7.0.2, then I found the elevation gain and loss in the route statistics is totally suspicious.

For example, this one:

http://c1.zdb.io/files/2017/06/11/3/39e077bae2466f39bb0abaf4589995ed.png">

How can a man finish 36.33km + 5103m ascent + 4766m descent in less than 16 hours?

But, if you upload the track log to some online website, then the data looks much more reasonable.

For example,

http://www.ibpindex.com/ibpindex/ibp_analisis_completo.php?REF=37046078386364&LAN=zh&SMD=m&MOD=HKG">http://www.ibpindex.com/ibpindex/ibp_an ... =m&MOD=HKG">http://www.ibpindex.com/ibpindex/ibp_analisis_completo.php?REF=37046078386364&LAN=zh&SMD=m&MOD=HKG

says the accumulated climb is 2945.41m and  accumulated descent is 2616.73m,

while

http://www.gpsies.com/map.do?fileId=wcuxjrghwtgcmxyk">http://www.gpsies.com/map.do?fileId=wcuxjrghwtgcmxyk

says the ascent is 2641m and descent  is 2298m.

Definitely the data from ibpindex.com and gpsies.com are more reasonable.



I didn't see this problem before, when I was using OruxMaps 4.x.



Could you please take a look?

Thanks.

[orux]

Have been using OruxMaps 4.x for several years, and everything looks good.



And about 1 months ago I upgraded to OruxMaps 7.0.2, then I found the elevation gain and loss in the route statistics is totally suspicious.

For example, this one:

http://c1.zdb.io/files/2017/06/11/3/39e077bae2466f39bb0abaf4589995ed.png">

How can a man finish 36.33km + 5103m ascent + 4766m descent in less than 16 hours?

But, if you upload the track log to some online website, then the data looks much more reasonable.

For example,

http://www.ibpindex.com/ibpindex/ibp_analisis_completo.php?REF=37046078386364&LAN=zh&SMD=m&MOD=HKG">http://www.ibpindex.com/ibpindex/ibp_an ... =m&MOD=HKG">http://www.ibpindex.com/ibpindex/ibp_analisis_completo.php?REF=37046078386364&LAN=zh&SMD=m&MOD=HKG

says the accumulated climb is 2945.41m and  accumulated descent is 2616.73m,

while

http://www.gpsies.com/map.do?fileId=wcuxjrghwtgcmxyk">http://www.gpsies.com/map.do?fileId=wcuxjrghwtgcmxyk

says the ascent is 2641m and descent  is 2298m.

Definitely the data from ibpindex.com and gpsies.com are more reasonable.



I didn't see this problem before, when I was using OruxMaps 4.x.



Could you please take a look?

Thanks.

Hello,





can you share the original .gpx file created with OruxMaps?





orux

[guoke]

Yes, of course.

How can I send the gpx to you?

Or could you send me a email (whut.wuming at gmail.com )? Then I can reply.

Thanks.

[guoke]

Well, I tried to share it via Google Drive. Can you download it?

https://drive.google.com/open?id=0B8m_j6Qh57hQelAxbmJNV2VKOEk">https://drive.google.com/open?id=0B8m_j ... mJNV2VKOEk">https://drive.google.com/open?id=0B8m_j6Qh57hQelAxbmJNV2VKOEk

Thanks.

[Anonymous]

double post

[Anonymous]

I also have this issue.



All my gpx routes with oruxmaps are showing the incorrect elevation gain/loss.  The error is almost 50% of the total elevation.  Orux map route statistics says 300 metres gain but the correct total should be over 600 meter gain.  So its off by 100%



also the route in some places shows a accent but in reality it is a decent.  The 3d map in oruxmaps shows it as a decent.