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Flatten outside airport area

G

GSalden

Messages
48
Hi all,

I would like to flatten several parts of a scenery about 5 mls outside the airport area.

With AFX I tried but then the flatten is for the whole area and is at airport altitude, which is too low. Therefore a stair wall appears in the sea.

Help is appriciated.

Regards,
Gerard

Here you can see my issue :
 

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Hi,

With SBuilderX you should be able to draw the flatten exactly where you want it and with the altitude you want.
 
What king of Flatten should I make : AB_Flatten , Legacy LWN Land Flatten ?

I treid to use AB Flatten , save the project and choose BGL compilation. However that windows says "there is nothing to compile" .
I can see the flatten on the SBuilder X screen...

What should I do ?
 

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You need to select the polygons you want to export first.
 
Found that out too after 2 h of trying :cool:
A BGL file is being made, but no changes or whatsoever in the scenery.I have tried Altitude from -10 - + 50...
 

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Hello:

You must exclude and replace Hydro polys and shoreline vectors in the area you wish to customize / modify.


Examine in FS Terrain SDK TMFViewer:

[FSX install path]\Scenery\0702\scenery\dem0702.bgl

[FSX install path]\Scenery\0702\scenery\cvx5722.bgl

Jump to: N27.104297°,E33.830321°

Zoom in, and note the vector object IDs for Hydro polys and shorelines to be excluded and replaced


PS: You may wish to review the tutorials by Luis Feliz-Tirado cited here:

http://www.fsdeveloper.com/forum/threads/how-to-make-an-island.440824/page-2#post-779922

...and here:

http://www.fsdeveloper.com/forum/threads/black-water-and-several-other-issues.440908/#post-779992


Hope this helps get you started. :)

GaryGB
 
Thanks Gary.
Will read it and try it.

I thought that I could simply flatten land under the photo scenery.
 
Hi again:

Technically one 'should' be able to make a AB CVX vector flatten polygon with assigned elevations for its vertices, compile it to a BGL, and have it modify the local terrain mesh display.

However, Hydro polys in FSX now use assigned elevations for vertices, and along with underlying default and/or 3rd party terrain mesh, may fail to display smaller higher resolution tiles of mesh data or CVX vector flatten data, because the run time rendering engine refuses to acknowledge and adapt to local terrain mesh modifications after having already encountered a terrain mesh BGL that covers a larger LOD sized area in that region as we fly in to our target area from a remote area (Continuous LOD aka "CLOD" feature).

Thus, we sometimes have to either forcefully 'exclude and replace' all of certain CVX vector content within a local QMID-11 / LOD-9 quad, and/or artificially extend the LOD coverage extents of a custom local CVX vector flatten or terrain mesh BGL by placing outlying vertices beyond the Geographic extents of the underlying default or 3rd party flattens and/or terrain mesh ...so that it can 'compete' against the larger coverage extents of underlying terrain mesh for the attention of the FS run time terrain rendering sub-system.


BTW: Since the structures in the area that you are trying to modify are in the tropics, probably are paved, and will not likely require seasonal texture changes, you could just build them into the foundation of any 3D objects you may be modeling to place on top of the intended flattens.


Alternatively, you could model the flattens themselves in a 3D modeling application, then export them from MCX as "sloped flattens".


Hope this helps a bit more ! :)

GaryGB
 
I finally ws able to use an airport Flatten with AFX ( with ADE I could not get it to work ), but instead of the airport I choose a larger area. I made it in a way that the borders went seamlesly over into the terrain/water. With a smaller area I got "walls". Now it looks great.
 
Glad you have a result you are satisfied with. :)

When you view the resulting AFX output flatten BGL in TMFViewer, and check the vector properties for the flatten polygon, would you please tell us what GUID AFX used, and does the coverage area of the "airport flatten" polygon which you used extend beyond the border of more than 1 QMID-11 quad when that size of QMID grid is displayed inside the TMFViewer work-space over your flatten BGL ? :scratchch

GaryGB
 
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