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Can terrain elevation be exported?

Z

zhangzz

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china
hi，Using MDX, is it possible to export the terrain height of a specific area to replace the original terrain height in P3D?
 
Hi,

Not really. The only thing you can do if import a 3D model and export that as a resample elevation BGL file. Some developers use that to make custom terrain for a small area. But MCX does not have a function to create elevation data for a bigger area. If you want that, you can better try the SDK resample tool or scenProc.
 
arno said:
Hi,

Not really. The only thing you can do if import a 3D model and export that as a resample elevation BGL file. Some developers use that to make custom terrain for a small area. But MCX does not have a function to create elevation data for a bigger area. If you want that, you can better try the SDK resample tool or scenProc.
Click to expand...

Hi Arno:

As I read this, I do not recall seeing where MCX has a feature documented to:

"import a 3D model and export that as a resample elevation BGL file".


Are you referring to the documented option to export a "terrain flatten BGL" File cited in the MCX manual ?

10.2.2 BGL flatten
ModelConverterX can create a terrain flatten BGL file using shp2vec based on 3D objects.

This can be used to make an accurate flatten based on a 3D mesh in a modeling tool.

See Figure 10.1
for an example of a flatten made from a building shape.

Or is there another MCX option as yet undocumented ...that you are just now disclosing to us ? ;)


IIUC, if this was intended to be a reference to the above documented feature to export a "terrain flatten BGL file using shp2vec", the resulting SHP2VEC BGL could be de-compiled by Patrick Germain's CvxExtractor and output as either of multiple file formats.

https://www.fsdeveloper.com/forum/threads/cvxextractor-exporting-vector-data.432918/


AFAIK, P3D terrain mesh BGLs are sourced from freely downloadable SRTM and ASTER GDEM elevation data, compiled via SDK Resample.


As you stated, the 3D model approach is more suited for smaller areas of terrain to be modified by a TIN compiled by SDK SH2VEC.

Perhaps the OP could tell us what area size is intended to be modified, and where it is located, so we can advise further on terrain options ? :scratchch

GaryGB
 
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