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Flatten problem

G

gaugi1

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2
Country
canada
Hi,

I have created, for FSX, two flatten files in following exactly the same procedure with FSX KML v1.04beta to correct the elevation of part of airfield boundary.

For the first flatten, the airfield boundary is corrected.

See Animation2.gif

For the second flatten, the elevation around the airfield boundary is modified, but the elevation of airfield is not corrected.



See Animation1.gif

I remake this flatten file with SBuilderX. Same result.

Do anyone have suggestion about this problem ?


Gilles G.
 

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  • Animation2.gif
    Animation2.gif
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gaugi1 said:
Hi,

I have created, for FSX, two flatten files in following exactly the same procedure with FSX KML v1.04beta to correct the elevation of part of airfield boundary.

For the first flatten, the airfield boundary is corrected.

See Animation2.gif

For the second flatten, the elevation around the airfield boundary is modified, but the elevation of airfield is not corrected.



See Animation1.gif

I remake this flatten file with SBuilderX. Same result.

Do anyone have suggestion about this problem ?


Gilles G.
Click to expand...

???

I am not quite sure what you are asking. It appears in the second animation, that you have corrected the river elevation, because there is no more hump in the river. Whereas before it had negative interaction with the airport poly.

At any rate, in my experience to completely do an airport right, you have to first exclude the default airport background (Excude_AirportBackgrounds_MaskClassMap.... etc.) and then remove the default runways (via, a <DeleteAirport... xml construct), and only then will you have brought your airport area back down to raw mesh terrain data.

The reason for that is because it seems that both background polys, AND runways carry an elevation flattening algorithm with them. Some people don't realize that the runways also have a flatten built into them that extends beyond the boundaries of the runway itself, and in the case of some small airfields, a background poly appears to not even be necessary.

Once you have brought things down to bare mesh level, you can begin adding your correct elevation flattens for the reconstructed airfield. Or you could simply add runway(s), and see that they do some regional flattening of their own.
 
Mace said:
...it seems that both background polys, AND runways carry an elevation flattening algorithm with them. Some people don't realize that the runways also have a flatten built into them that extends beyond the boundaries of the runway itself, and in the case of some small airfields, a background poly appears to not even be necessary.
Click to expand...

Taxiways flatten as well. And you are correct that you can get away without a background poly in certain cases.

-Doug
 
Hi

Thanks for your comments.

Like I don't will modify the elevation airport, I have tried more arrangements of flatten and exclude files to fit it with the level of the river bordering airport. But no results (but I have been successful in an other airport).

I have finally resolved my problem in modifying the river site.

Gilles
 
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