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FSX Airports missing from facilities request

L

L0stS0ul

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3
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unitedstates
Hello,

I'm building an app that shows the airports, ndb, and vor within the area around the aircraft. I'm having a problem that airports are missing and I can't figure out why. I compiled the code from Microsoft's sample here:

http://msdn.microsoft.com/en-us/library/cc730341.aspx

and I am seeing the same behavior. It looks like the NDB's and VOR's are accurate. I found a similar thread from 2007

http://www.fsdeveloper.com/forum/threads/simconnect-airport-list.7997/

and I'm just wondering if there is any way to get around this issue and return all airports. Clearing the cache is not working for me. Here is an example:

I was flying on Oahu, from Dillingham to Honolulu, and there were NO local airports at all.

Around SeaTac, FSX picks up a lot of "Area" airports, including one fictitious one (KEWL, Emma Field), but is missing KPWT Bremerton. The Bremerton VOR and NDB are correctly returned.

It does look like this issue still exists in Prepar3D v2. I'm hoping there is some magic incantation that can fix this.

Thanks
 
This will work similar to Nearest in the gps? curious. sorry i dont know enough to help you on your question.
 
Hello,

Yes the feature for my app is doing something similar to the nearest airport feature. These api's, from my testing over the last week, are completely unreliable. That also includes the VOR and NDB returns. It turns out that if you subscribe to more than 2 of them at a time the data just becomes corrupt on all of them. Large areas will be missing data. Unfortunately, I have already announced this feature for my application so I'm not sure what I'm going to do right now. Might have to find an alternate source for airport, vor, and ndb data.
 
For ADE I use scanner code that collects information about airports and navaids and saves it in databases. When we load stock data for an airport then a search is made for those things within a certain range of the airport reference point. This is not done in real time of course but there are some fast searching algorithms about that might be fast enough.
 
Thanks Jon, I think I will be looking into doing something similar. Maybe if I segment the data by region I can make it fast enough. To bad these old api's are unreliable.
 
There are some tricks that can be used sorting positional data by latitude and then longitude. Then a binary search perhaps?
 
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