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weird elevation in water near MMAA
- Thread starter ahuimanu
- Start date
Hello:
Indeed, there may be a number of CVX*.bgls in the Pacific Ocean off Acapulco International MMAA with anomalies.
The fix can be rather laborious and time-consuming, so I'd recommend instead buying / using Flight1 Ultimate Terrain:
Ultimate Terrain X Tropical America and Caribbean V2
https://www.flight1.com/products.asp?vid=flt1sf&pid=utxtap2
Ultimate Terrain X USA V2 FSX and P3D
https://www.flight1.com/products.asp?vid=flt1sf&pid=utxtap2
PS: If you want to manually troubleshoot these areas, you need to post Geographic A/C coordinates to ID the BGLs.
GaryGB
Indeed, there may be a number of CVX*.bgls in the Pacific Ocean off Acapulco International MMAA with anomalies.
The fix can be rather laborious and time-consuming, so I'd recommend instead buying / using Flight1 Ultimate Terrain:
Ultimate Terrain X Tropical America and Caribbean V2
https://www.flight1.com/products.asp?vid=flt1sf&pid=utxtap2
Ultimate Terrain X USA V2 FSX and P3D
https://www.flight1.com/products.asp?vid=flt1sf&pid=utxtap2
PS: If you want to manually troubleshoot these areas, you need to post Geographic A/C coordinates to ID the BGLs.
GaryGB
Last edited:
Hello Gary,
I own this - https://secure.simmarket.com/pilots-fsg-fs-global-ultimate-ng-2020-prepar3d-v4-and-v5.phtml
would that do the same job?
However, I would also like to explore learning more about this myself - I got a great education in shp2vec while working on this.
The body of water is called "Laguna de Tres Pablos" and a good reference lat/lon would be this: 16.786296672062303, -99.74722112027764
Do you see the same anomalies on your end?
I own this - https://secure.simmarket.com/pilots-fsg-fs-global-ultimate-ng-2020-prepar3d-v4-and-v5.phtml
would that do the same job?
However, I would also like to explore learning more about this myself - I got a great education in shp2vec while working on this.
The body of water is called "Laguna de Tres Pablos" and a good reference lat/lon would be this: 16.786296672062303, -99.74722112027764
Do you see the same anomalies on your end?
Hi again:
The product you cite above is terrain mesh BGLs compiled via SDK Resample.
Laguna de Tres Pablos is a lake that can be substituted by accurate payware, freeware, or your own custom CVX vector BGLs.
Water is rendered from CVX vector BGLs compiled via SDK SHP2VEC.
After decompiling pertinent CVX BGLs with CvxExtractor and exporting SHP files, if Appended to SBuilderX, the SHPs can be edited and re-compiled to BGL
Laguna de Tres Pablos is defined by CVX vector polygons within a FSX / P3D Area QMID-11 quad inside this BGL:
[FSX or P3D install path]\Scenery\0203\scenery\cvx2126.bgl
You may wish to take a look at these threads to see the general work-flow involved:
https://www.fsdeveloper.com/forum/threads/change-the-polygon-elevation-in-the-_cvx-bgl.446626/
https://www.fsdeveloper.com/forum/t...ects-in-sbuilderx-for-katl.444877/post-817582
https://www.fsdeveloper.com/forum/t...-coastline-from-default-stock-airport.447909/
If you are already familiar with SBuilderX:
After exporting ESRI SHP files, Append FLX*, HL*, and HP* .SHP files to SBuilder and edit those Polygons to match the Satellite imagery background.
Otherwise, let me know what you need more help with, and I will try to post the steps required to fix this later today.
GaryGB
The product you cite above is terrain mesh BGLs compiled via SDK Resample.
Laguna de Tres Pablos is a lake that can be substituted by accurate payware, freeware, or your own custom CVX vector BGLs.
Water is rendered from CVX vector BGLs compiled via SDK SHP2VEC.
After decompiling pertinent CVX BGLs with CvxExtractor and exporting SHP files, if Appended to SBuilderX, the SHPs can be edited and re-compiled to BGL
Laguna de Tres Pablos is defined by CVX vector polygons within a FSX / P3D Area QMID-11 quad inside this BGL:
[FSX or P3D install path]\Scenery\0203\scenery\cvx2126.bgl
You may wish to take a look at these threads to see the general work-flow involved:
https://www.fsdeveloper.com/forum/threads/change-the-polygon-elevation-in-the-_cvx-bgl.446626/
https://www.fsdeveloper.com/forum/t...ects-in-sbuilderx-for-katl.444877/post-817582
https://www.fsdeveloper.com/forum/t...-coastline-from-default-stock-airport.447909/
If you are already familiar with SBuilderX:
After exporting ESRI SHP files, Append FLX*, HL*, and HP* .SHP files to SBuilder and edit those Polygons to match the Satellite imagery background.
Otherwise, let me know what you need more help with, and I will try to post the steps required to fix this later today.
GaryGB
Last edited:
Hi Gary,
Thanks. The product cured the mesh problem, which means that some aspects of default mesh still have problems.
I've been working with QGIS to make the shapefiles and I have successfully created my own hand-traced version of Laguna de Tres Pablos. However, I am learning that I need to exclude shorelines and/or get better at understanding each GUID to know what to exclude and what to inject. I am also learning more about what the -ADDOTCELLS option does in terms of SHP2VEC's output.
I suspect the FS Pilots has probably done all of the dirty work, but I also see that the flaws in SRTM are steadily being improved.
My motivation is as much to develop some of these things myself and I've used this information as a guide: https://www.prepar3d.com/SDKv5/sdk/world/terrain/terrain_overview.html
Thank you for looking at my problem and providing mesh as the possible culprit.
Jeff
Thanks. The product cured the mesh problem, which means that some aspects of default mesh still have problems.
I've been working with QGIS to make the shapefiles and I have successfully created my own hand-traced version of Laguna de Tres Pablos. However, I am learning that I need to exclude shorelines and/or get better at understanding each GUID to know what to exclude and what to inject. I am also learning more about what the -ADDOTCELLS option does in terms of SHP2VEC's output.
I suspect the FS Pilots has probably done all of the dirty work, but I also see that the flaws in SRTM are steadily being improved.
My motivation is as much to develop some of these things myself and I've used this information as a guide: https://www.prepar3d.com/SDKv5/sdk/world/terrain/terrain_overview.html
Thank you for looking at my problem and providing mesh as the possible culprit.
Jeff
Last edited:
Hi Jeff:
Sorry for the delay in getting back to this thread (some recent real life matters required my undivided attention).
Indeed, Pilot's has made some good contributions to the FS Community via its "cleaned / enhanced" SRTM data sets for FS terrain mesh.
I do not know how extensive and complete the corrections are for water bodies in the recent Pilot's terrain mesh products, as I have historically used Allen Kreisman's / Scenery Solution's Ultimate Terrain products c/o Flight1 ...for FS9 and FSX / P3D, which provide "vector" data for water bodies and other land class type terrain objects.
If prepared properly, vector data for water bodies can be merged into elevation source data for terrain mesh BGLs to correct / assign Altitude for water bodies, allowing for elimination of (some) vertex point density from CVX vector BGL data sets, so that lakes (end even oceans / seas) are correctly displayed as continuous flat / level Altitudes (A)MSL.
Because FS' data sets are still somewhat older and international vector data sets for water body data are still a work-in-progress, ACES / L-M still render water bodies from CVX vector BGLs to allow exclusion and correction / modification.
You may be aware that CVX vector object TINs with assigned elevations (ex: level / sloped flattens) can over-ride instructions from a terrain mesh BGL
Certainly your methods via direct use of SDK SHP2VEC would be a detailed learning experience, as that was all we had initially with FSX RTM.
Personally, I later began using FSX_KML, SBuilderX, ADE etc, in conjunction with Global Mapper as my GIS app ...to generate my CVX vector content.
IIUC, you are now aware of certain CVX vector ID criteria which apply to one's choice of GUID that must be used for FSX / P3D terrain object excludes.
FYI: SBuilderX, Global Mapper, and QGIS allow assigning proper clock-wise / counter-clock-wise "winding direction" of nested land class polygon vertices / holes for FS vector water bodies / shorelines etc.
Good luck with your projects.
GaryGB
Sorry for the delay in getting back to this thread (some recent real life matters required my undivided attention).
Indeed, Pilot's has made some good contributions to the FS Community via its "cleaned / enhanced" SRTM data sets for FS terrain mesh.
I do not know how extensive and complete the corrections are for water bodies in the recent Pilot's terrain mesh products, as I have historically used Allen Kreisman's / Scenery Solution's Ultimate Terrain products c/o Flight1 ...for FS9 and FSX / P3D, which provide "vector" data for water bodies and other land class type terrain objects.
If prepared properly, vector data for water bodies can be merged into elevation source data for terrain mesh BGLs to correct / assign Altitude for water bodies, allowing for elimination of (some) vertex point density from CVX vector BGL data sets, so that lakes (end even oceans / seas) are correctly displayed as continuous flat / level Altitudes (A)MSL.
Because FS' data sets are still somewhat older and international vector data sets for water body data are still a work-in-progress, ACES / L-M still render water bodies from CVX vector BGLs to allow exclusion and correction / modification.
You may be aware that CVX vector object TINs with assigned elevations (ex: level / sloped flattens) can over-ride instructions from a terrain mesh BGL
Certainly your methods via direct use of SDK SHP2VEC would be a detailed learning experience, as that was all we had initially with FSX RTM.
Personally, I later began using FSX_KML, SBuilderX, ADE etc, in conjunction with Global Mapper as my GIS app ...to generate my CVX vector content.
IIUC, you are now aware of certain CVX vector ID criteria which apply to one's choice of GUID that must be used for FSX / P3D terrain object excludes.
FYI: SBuilderX, Global Mapper, and QGIS allow assigning proper clock-wise / counter-clock-wise "winding direction" of nested land class polygon vertices / holes for FS vector water bodies / shorelines etc.
Good luck with your projects.
GaryGB
Last edited: