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 Map quality difference XCsoar/LK8000

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Robert Haugen Posted - 10/01/2019 : 18:36:42
I have been looking into the XCSoar Android app, and it looks like the XCSoar provide with much better quality of the map than LK8000 Android app does (Norway south). I have the the setting mountainous on both LK8000 and XCSoar.
Is there a setting on the LK8000 to get the same quality?
9   L A T E S T    R E P L I E S    (Newest First)
ToninoTarsi Posted - 14/01/2019 : 16:19:16
Thanks Bruno,

Version 1.0.2.00 is available and now we use http://viewfinderpanoramas.org as source website that have a mixed-source data that covers all the globe.

Tony

brunotl Posted - 13/01/2019 : 16:19:18
another srtm data source with world coverage :
http://viewfinderpanoramas.org/Coverage%20map%20viewfinderpanoramas_org3.htm
ToninoTarsi Posted - 13/01/2019 : 14:05:49
quote:
Originally posted by bo.

Excellent!

Robert, I hereby appoint you as volunteer ;-)

What dataset is used beyond 60 N (and 56 S)? SRTM stops there as I understand it.

ASTER?



Yes .. you are right. Bewonf 60 my tool run fine but data are 0 for lack of SRTM data there. Aster GDEM can be a solution there but be aware that GDEM has a lot of artifacts.
Processing chain can be :
- Download GDEM
- Mosaic it and convert into Esri grid asc file ( using free QGIS for example)
- Convert it into DEM using this tool : https://github.com/ToninoTarsi/GIS2LKMAP

Tony
Robert Haugen Posted - 12/01/2019 : 12:28:19
quote:
Originally posted by ToninoTarsi

Producing 90 meters maps worldwide will be very time consuming and server space consuming .. but volunteers to do this are welcome :-)
Easier solution is to use LKMaps_Desktop that can produce maps everywhere (even > 60 deg .. I just produces Svalbard :-) ) in just 5 minutes.

Tony




The first problem is that there is missing mapset area for my region in Norway (the northwest alps). The map is only reaching 1/5 of Norway from south to North. Do you know how to collect the complete mapset for Norway?

However, to be able to test mapsetting I needed to find a random area with mapset.
After creating terrain file 90m covering 50% Norway with LKmaps and tweaking the "mountanous" contrast/brightness settings 100/0 it got better. The filesize is 190mb. But IMHO the XCsoar map is more detailed showing the valleys and mountains better. See files to compare.


I will not create a big subject around this, but I'm just exploring the potential. I am not any expert what so ever in this platform.


https://www.dropbox.com/sh/ljrsn9ptkw543ix/AADsecbaOHLqUEXEAf_17Vsja?dl=0
bo. Posted - 11/01/2019 : 20:54:13
Excellent!

Robert, I hereby appoint you as volunteer ;-)

What dataset is used beyond 60 N (and 56 S)? SRTM stops there as I understand it.

ASTER?
ToninoTarsi Posted - 11/01/2019 : 10:38:26
Producing 90 meters maps worldwide will be very time consuming and server space consuming .. but volunteers to do this are welcome :-)
Easier solution is to use LKMaps_Desktop that can produce maps everywhere (even > 60 deg .. I just produces Svalbard :-) ) in just 5 minutes.

Tony
bo. Posted - 11/01/2019 : 09:50:05
Hi, that would be much appreciated. Please remember the lack of DEM data north of 60 N in the dataset normally used. This has been solved previously for Norway, I'm not sure how much effort it was.

Did XCSoar solve this properly yet?
AlphaLima Posted - 10/01/2019 : 21:57:54
For Norway there is only coarse maps avialable in the download section, but you can generate more detailed maps yourself as Tony mentioned above.
@Tony: mayby we can generate some more detailed maps for scendinavia and add it for LKMaps?

ToninoTarsi Posted - 10/01/2019 : 21:36:15
What do you mean with quality ? Any screen shot ?
LK8000 provides worldwide maps available here : http://www.lk8000.it/download/maps.html
and a Desktop application for making updated personals maps (with a resolution up to 90 meters) : https://www.postfrontal.com/forum/topic.asp?TOPIC_ID=8500
Tony

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