Discussion Thread about the wiki article "Create mesh using Global Mapper"

#21
If the mesh differs greatly in resolution from the default mesh (like 1-2m resolution differs from SRTM), you will get large straight trenches at the edges of the higher resoluton mesh. If you have the source (or create a source by undersampling high res data) for the lower resolution mesh that extends outside the high res mesh, and If you draw an area around the perimeter of the high res mesh and feather inside that area at least the number of pixels that the high res mesh would use to create one or 2 low res mesh cells, then this blends out the differences.

The difference between Default and SRTM/Aster is not that great that you would notice, but when you get down to the difference between 5m or less and SRTM the fault line created can be significant and obvious.

Cheers

Braedon
 
Last edited:
#22
Hi, so I'm trying to compile some mesh. I have all of my tif files in the same folder as my .inf and resample.exe (in the FSX SDK), but the command line window opens for a split second then closes. Any idea why this might be happening? Here's my inf:

[Source]
Type = MultiSource
NumberOfSources = 29

[Source1]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N37E124_dem_1.tif"

[Source2]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N37E125_dem_1.tif"

[Source3]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N38E124_dem_1.tif"

[Source4]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N38E125_dem_1.tif"

[Source5]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N38E126_dem_1.tif"

[Source6]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N38E127_dem_1.tif"

[Source7]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N38E128_dem_1.tif"

[Source8]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N39E124_dem_1.tif"

[Source9]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N39E125_dem_1.tif"

[Source10]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N39E126_dem_1.tif"

[Source11]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N39E127_dem_1.tif"

[Source12]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N39E128_dem_1.tif"

[Source13]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N40E124_dem_1.tif"

[Source14]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N40E125_dem_1.tif"

[Source15]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N40E126_dem_1.tif"

[Source16]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N40E127_dem_1.tif"

[Source17]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N40E128_dem_1.tif"

[Source18]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N40E129_dem_1.tif"

[Source19]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N41E125_dem_1.tif"

[Source20]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N41E126_dem_1.tif"

[Source21]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N41E127_dem_1.tif"

[Source22]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N41E128_dem_1.tif"

[Source23]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N41E129_dem_1.tif"

[Source24]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N42E127_dem_1.tif"

[Source25]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N42E128_dem_1.tif"

[Source26]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N42E129_dem_1.tif"

[Source27]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N42E130_dem_1.tif"

[Source28]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N43E129_dem_1.tif"

[Source29]
Type = GeoTIFF
Layer = Elevation
SourceDir = "SourceData"
SourceFile = "ASTGTM2_N43E130_dem_1.tif"

[Destination]
DestDir = "Output"
DestBaseFileName = "Elevation_Data_NorthKorea"
DestFileType = BGL
LOD = 4,11
FractionBits = 2
 

rhumbaflappy

Moderator
Staff member
Resource contributor
#25
You could use the command line to redirect the output to a log file: "resample Mymesh.inf > C:\users\me\desktop\resample.log" where me is your computer name, and a log file should be created on the desktop. It can be read with a text editor. The warning is a common thing, and the BGL usually still compiles.
 
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