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FSX What happening to my GeoTIFF Mesh?

vangiovani

vangiovani

Messages
15
Country
indonesia
As the tittle said...
View attachment 50905
I made this Mesh from GeoTIFF and export to 16bit with Global Mapper.
This is whats inside my .INF :

[Source]
Type = GeoTIFF
Layer = Elevation
SourceDir = "."
SourceFile = "S_SUMATERA.tif"
ulxMap = 95
ulyMap = 6
xDim = 0,000277777777777676
yDim = 0,000277777777777676

[Destination]
DestDir = "."
DestBaseFileName = "SUMATERA4,12"
DestFileType = BGL
LOD = 4, 12
Click to expand...

I'm wondering theres something wrong with my .INF file?
Can anyone help me please? I Almost desperate :(
View attachment 50905
 
Last edited:
Hello:

First, set your decimal point character to a "period" / "dot" ...NOT a comma in Windows, and also in your *.INF file.

https://www.fsdeveloper.com/forum/threads/sbx-install-problem.443859/post-809127


FYI: Here's a couple of threads describing procedures to use with elevation data in Global Mapper: :idea:

https://www.fsdeveloper.com/forum/threads/about-geotiff-resmaple.430118/

https://www.fsdeveloper.com/forum/threads/help-with-global-mapper-and-scenery-use.439100/


If, after these things are done, you still have the terrain anomalies seen above in your opening post, let us know. :)


BTW: What (and where) is the source for the elevation data you used above ? :scratchch

GaryGB
 
Last edited:
Hi GaryGB! Happy to see someone give me a solutions :D

I will let you know whats happening next.

Sorry for lack of information, I downloaded the SRTM 1 Arc-Second Global from here https://earthexplorer.usgs.gov/ and the picture above is in Sumatera, Indonesia.

Thanks, GaryGB
 
Do you simply want to learn to make terrain mesh, or did you need to create a custom low-detail terrain mesh ? :scratchch


FYI: There are already downloadable free-to-use BGLs of 1 Arc-second terrain mesh that have no spikes / pits / voids at:

http://ninetwopro.com/

http://ninetwopro.com/freemeshx/

http://ninetwopro.com/freemeshx/bit-torrent-download-links/

FreeMeshX – Global 2.0 (46.1 GB)

http://www.mediafire.com/file/j9gyf1u8brsv5zu/FreeMeshX_Global_2.0.torrent


Regarding a Torrent download utility, see:

https://www.fsdeveloper.com/forum/threads/resample-not-working.443137/post-802436

https://www.fsdeveloper.com/forum/t...-elevation-and-ade-flatten.439912/post-770368


GaryGB
 
Hi.

I want to learn to make a custom mesh, as I follow from many tutorials.

And I'm not sure what's low detail terrain mesh? :rolleyes:
 
While the world-wide elevation data set available from revised SRTM is 1 Arc-Second (30 Meters between data points on ground), there are other data sets becoming available for parts of the globe which are higher resolution (less than 30 Meters between data points on ground).

So, SRTM 1 Arc-Second (30 Meters between elevation data points on ground) data is lower resolution compared to higher resolution data.

Thus, when the distance between elevation data points on ground is greater, the detail it contains is low compared to higher resolution data.

GaryGB
 
Hi again GaryGB :wave:

I've read the suggestion above but I still see kind of spikes in my mesh.

Is there any solutions? Would appreciate it :D
 
Hi again:

Sumatra is a big island covering 5 Arc Degrees of Geographic extent; we need to examine the source data used. ;)

Please reply with some Geographic coordinates for the area seen in the screenshot of your opening post above.

GaryGB
 
GaryGB,

I think I found the problem! :laughing:

I recently open my Global Mapper and see what I found there.
wwww.jpg
Yes, the black and white rectangle which make spikes on my mesh.

But yet still not fixed, let me try from the beginning step :laughing:

GaryGB said:
Hi again:

Sumatra is a big island covering 5 Arc Degrees of Geographic extent; we need to examine the source data used. ;)

Please reply with some Geographic coordinates for the area seen in the screenshot of your opening post above.

GaryGB
Click to expand...

Exatcly that's a big Island! :laughing:

Here's the DEM Data Source coordinates which make some spikes
2.jpg


1.jpg
Really appreciate your help, GaryGB :wave:
 
Last edited:
AFAIK, after login at EarthExplorer, a 1 Arc Sec. SRTM data set you may have 'less' anomalies with is a void-filled version:

"SRTM Plus" or "SRTM NASA Version 3"

https://www2.jpl.nasa.gov/srtm/


Related links:

https://www.arcgis.com/home/item.html?id=cadb028a356046479fcda5207a235560

http://opentopo.sdsc.edu/raster?opentopoID=OTSRTM.082015.4326.1


FYI: On the EarthExplorer linked LP DAAC web pages this is cited as:

SRTMIMGMv003

https://lpdaac.usgs.gov/products/srtmimgmv003/


In the EarthExplorer web portal GUI:

1.) {Search Criteria} tab:

a.) Zoom map to your area of interest (be certain all of Sumatra shows in the map preview)

b.) {Coordinates} tab > click: "Use Map"


NOTE: You may also draw a polygon around Sumatra in Google Earth Desktop Edition, then export a *.KMZ file

Load that *.KMZ file via: EarthExplorer GUI > {Search} tab > {KMZ} tab

https://www.google.com/earth/versions/#earth-pro


2.) {Data Sets} tab:

a.) Check: NASA LPDAAC Collections > NASA SRTM (SRTM 3) Collections > NASA SRTM3 SRTMGL3

b.) Click: [RESULTS] button (at bottom)


1.) Search for Entity IDs with required Geographic coordinates covering Sumatra

2.) Download all required files (enter same login name and password as used for EarthExplorer portal if prompted)

a.) At Download Options prompt > Click: "[Standard Format]" button to access / download the *HGT.ZIP file


NOTE: After login and successful download of (1) file, try browsing directly to:

https://e4ftl01.cr.usgs.gov/MEASURES/SRTMGL3.003/2000.02.11/SRTMGL3_page_1.html

...to directly select and download remaining required files via a less complicated web page of file links. ;)


In Global Mapper:

1.) Select and Open all required *HGT.ZIP files (open the ZIP files themselves ..no un-ZIP is required)

2.) Follow all "Elevation" procedures I linked to above. :pushpin:


BTW: It is possible to compile *.HGT files directly by SDK Resample (after re-projected to EPSG:4326) via a proper *.INF:

https://www.fsdeveloper.com/forum/threads/hgt-file-to-bgl.445619/#post-824640


If you continue to see elevation anomalies in FS terrain mesh display for your project area, let us know, and also, please tell us what numeric version of Global Mapper are you using.


Hope this helps with the learning process. :)

GaryGB
 
Last edited:
GaryGB,

Thanks for your help.

I'll try your instructions above and let you know the update as soon as possible :D

Have a good day! ;)
 
Hi again, GaryGB! :laughing:

I've a good news.

The methods you gave to me are working flawlesly! I can't believe that :eek:

No more spikes here.

ggggg.jpg

And I want to ask something,
The SRTM3 that I used to dissapear the spikes seems not as detailed as SRTM1 right? See below for the comparison.
The picture below had a same zoom level in Global Mapper.

YEEEE.jpg

=============================================

But, I've another error.

eeeeee.jpg
Maybe I need create a new thread :D

Here's the link
 
Last edited:
vangiovani said:
https://www.fsdeveloper.com/forum/threads/what-happening-to-my-geotiff-mesh.445802/post-826886

Hi again, GaryGB! :laughing:

I've a good news.

The methods you gave to me are working flawlessly! I can't believe that :eek:

No more spikes here.

(Image not included in quote)
Click to expand...

Congratulations ! :)

vangiovani said:
https://www.fsdeveloper.com/forum/threads/what-happening-to-my-geotiff-mesh.445802/post-826886

And I want to ask something,
The SRTM3 that I used to disapear the spikes seems not as detailed as SRTM1 right? See below for the comparison.
The picture below had a same zoom level in Global Mapper.

(Image not included in quote)
Click to expand...

Yes, that is correct:

3 Arc Seconds (90 Meters between elevation data points on the ground) is lower resolution / lower detail than 1 Arc Second (30 Meters)

vangiovani said:
https://www.fsdeveloper.com/forum/threads/what-happening-to-my-geotiff-mesh.445802/post-826886

But, I've another error.

(Image not included in quote)

Maybe I need create a new thread :D

Here's the link
Click to expand...

I shall reply in that new thread. ;)


GaryGB
 
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