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GeoTiffs

Trans1007

Trans1007

Messages
155
Country
us-texas
Could some one kindly please explain to me what these are used for in FSX design please. Ive just recieved the whole country of Cuba's GeoTiffs and want to know how I can use them. Thank you.
 
A Geotiff is an image that contains information about its spatial reference (a tiff is a file format: Tagged Image File Format. As well as the information about the pixels it also stores other information in the header of the file)

This is important/useful in Geographical/mapping situations such as aerial photography as each image automatically lines up with others to create a seamless mosaic in digital geographic space.

The images you have are aerial photos which can be used to provide greater realism than the normal landclass textures.

See the SDK docs that relate to resample.exe as this is the program that you will use to convert these geotiffs into bgls for flightsim.

One potential issue will be converting from the (probably) projected coordinate system of the aerial photos into the geographic (i.e. WGS84) coordinate system that Flightsim requires for resampling.
 
Ok will look into the SDK. Can these also be used for creating mesh?? The above came from the EU spain. I just got the whole country cuba from the USGS.
 
Hi,

If you have elevation data in GeoTIFF format I think these can also be used indeed. Compared to a normal image the GeoTIFF has the advantage that it contains the location information already. So you don't have to specify it when creating the BGL file.
 
Global Mapper is not a problem for me. I took one of the geotiffs and manage to see the 3d view elevations and created a DEM. So now were do i procede please?
 
I have a metadata that contains coordinates, pixels and ect. Is this the info needed for ini? TFW that came with original data shows 0.000833333332999999980
0.0
0.0
-0.000833333332999999980
-81.280833333333504
23.171666633333501
 
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Make sure you export your GeoTiff as 16 bit elevation data with ground units in arc degrees. If the GeoTiff data is good, you shouldn't need to copy the tfw corner/scale data into the inf.

scott s.
.
 
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