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USGS Orthoimagery and SBX

thetford569

thetford569

Messages
266
Country
unitedstates
Hello all,

Thanks to my search here I found some high res orthoimagery for an airport that I am wanting to design on the National Map Seamless Server. I have used SBX before in my first simple airport design to download a photo from Virtual Earth and display it in FSX with no seasonal variations. This is the first time I am using USGS imagery (GeoTIFF) to make the airport background and I am also planning on making seasonal variations and night variations for this one. I selected the airport along with some surrounding areas and the download is in 4 parts. I've only worked with one airport image before from Virtual Earth and never one that is split up like this. Each part is 165 MB in size...

What do I need to do to make this work? Do I need to combine the parts into one image? Is it best to make one image or keep them separate? I just can't seem to find a step by step tutorial for taking this USGS imagery and getting it into SBX to convert for use in FSX. I would appreciate any guidance. Thanks!

Brandon
 
I guess nobody knows the answer to this. I have looked all over and I see that I can create an inf file and use the resample tool to get the photo into FSX however I'm using the photo as an airport background and I'm going to be re-building the airport on top of the photo so it seems that I need to use SBX to add the aerial photo instead of the inf file. Problem is I think the aerial photos I'm using are too big for SBX because it does include some of the surrounding area. I have looked through tutorial after tutorial and it's all running together. I just want to take my USGS GeoTiff photos, make seasonal/night/water/blend variations, get them into FSX, flatten and adjust elevation if necessary with SbuilderX and start building the airport using ADE and object placement tools. I just don't know how to make this flow where it will all work. It seems if I use the resample tool and get the image in FSX it will go there but then how am I going to make the photo the new background for my airport and get rid of the default without having the aerial photo in SBX?

Brandon
 
Hi,

I am afraid I can not really help you, since I always place my photos directly with resample.

But I guess you could use resample to make the BGL file of your photo. And then in SBuilder you can use the Google Map/Virtual Earth/Yahoo background image to make the excludes. You use these photos only as reference then to make the excludes in the right location.
 
The Resample compiler requires any imagery to be in a set format, the term format is generic to projection and datum. Imagery off the USGS server is in one format and it needs to be converted or reprojected into the format that Resample can process.

There are commercial tools that handle the re-projection quickly and easily, then export a file in the format that Resample requires. For freeware GIS applications you might check MapWindow; http://www.mapwindow.org/ It' been too ong ago for me torecall if MapWindow will handle the reprojection needed for the GeoTiff, but it should.

You might also be able to use MapWindow (after re-projection!) to cut out a smaller sized file that could be used within SBuilderX.

Information about the requirements for the Resample compiler is in the FSX SDKs.
 
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