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FSXA Need help updating KMDT- cvx.bgl file

I would not play with that CVX anymore. You may try getting it out of your compiled scenery folder and proceed as indicated by the tutorial. After compiling, you'll get both the airport bgl and the corresponding CVX.
More, there is no connection between airport ground polygon and boundary fence: the first is in the .CVX, the fence is an airport object.
 
I don't plan on working on it anymore. I am just going to follow your advice & exclude the original airport background. Then make a new one, like my previous one.

Glad to hear the fence is an airport object, that probably means the CVX file is not corrupted.

If I am lucky, it will retain my updated roads; if not, just an hours work to repeat. No big deal.

Cheers....
 
Fences are indeed compiled as part of the airport bgl file and have nothing to do with cvx files
 
@ Rosario,

Thanks for pointing in the right direction. I now have an empty CVX file. I also removed the roads. To get everything right would mean repositioning buildings. Roadwork is cheaper.

What was confusing was the contents of the CVX file. It shows only four points (Lat/Lon) as the boundary of airport.

In my first post there are approximately a dozen vertices delineating the ABP. This didn't make sense. As shown in this ADE screenshot:

ADE KMDT.jpg

The red line was the vertex points of the ABP pictured in my first post.

The four vehicle parking spaces (set manually) connected with the green lines depict the co-ordinates listed in the ( original FSX ) CVX file.

Supposedly these four points is what FSX refers to as the airport boundary. Hence, my confusion.

The only thing that the boundary (four points) encloses is the area utilized by the PA Nat'l Guard. The airport tower is approximately 2000 meters away.

Maybe, one of the more knowledgeable designers here can explain this


@ Scruffy,

Thank you for your reply. It along with the other replies helped to clear up a lot of confusion on my part.

Contrary to popular belief, we old farts actually do read the manual. The hard part is remembering the finer details.

Also, I want to thank you for making a great tool to enhance FSX. It is making this a truly enjoyable hobby.

Developers like MS & Dovetail Games could learn something from you.

Caiao, for now.….
 
OleGreyGhost said:
@ Rosario,
Thanks for pointing in the right direction. I now have an empty CVX file. I also removed the roads. To get everything right would mean repositioning buildings. Roadwork is cheaper.
What was confusing was the contents of the CVX file. It shows only four points (Lat/Lon) as the boundary of airport. (...)
Click to expand...

You should not have an empty CVX file, you should let ADE build the new one instead. This way you can draw a new boundary for your airport in ADE environment, using the polygon tool. You don't have to take care of the original FSX default CVX, since you are excluding it with the proper exclusion polygon.
You have to draw two polygons: the first will exclude the default FSX airport boundaries, the second will define the new boundaries (with flatten and proper classmask in the same polygon).
Proceed by steps.
1) if you have a cvx in your compiled scenery folder, remove it;
2) with ADE draw an exclusion polygon around your airport (Exclude Specific - Airports Backgrounds);
3) compile and start FSX; you should see no polygon now and your airport area will be not flattened, full of trees and houses;
4) now draw a new polygon in ADE defining your new airport area (Flatten Mask Class Map Exclude Autogen). It may be useful to connect FSX and ADE to be able to draw the polygon using the existing roads and railways as a reference;
5) disconnect ADE, close FSX, compile and restart FSX: you should now see the new airport background polygon, your airport area will be flattened and without autogen.

Let me know if this helps
 
Rosario,

I have completed the first three steps you described. Now, I can expand the airport area & set up the roads properly.

By emptying the CVX file, I meant I removed the ABP & the roads.

What I was left with were the four co-ordinates outlined by the green box. The airport boundary. I don't plan on removing these co-ordinates.

If you examine the CVX file, you will not find any data referencing the ABP. None of the vertex co-ordinates are listed.

Most of the posts I readrefer to them as the same entity. This is what was confusing.

Hopefully someone can clear this up......
 
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