When I Edit Terrain, I change mesh values. Where can I find that raw data?

[Guest]

In a Mainland parcel, using the Edit Terrain tool, one can change the mesh of the land surface. Is there a way to "see" and extract the raw data, perhaps to export it?

[Kwakkelde Kwak]

As far as I know, only estate owners can export the raw terrain file of a region. For mainland that would be Linden Lab (Governor Linden?).

In other words, I'm afraid you can't access the map, there's something else that should work though:

If you can rezz prims on the entire piece of land you want mapped, you should be able to retrieve the ground height by script, using llGround. With the information you retreive by such a script you could construct the height map. This page might be helpful.

If you aren't able to write such a script or if you have trouble making it work, you could try either the wanted or scripting forum.

[Rolig Loon]

As I responded in PM a little while ago, the data are almost certainly not stored as a grid of discrete points but as a set of difference equations in digital form.  When a script calls llGround, as Kwak suggests, the servers solve those equations for the specific location requested.  That involves much less storage than carrying around and transmitting a humongous 3D array of data points for your graphics card to handle.