Background: I have topographical datasets with height information as a starting point. The endgame is to create a dataset of triangulations which I can use to import into Parasolid to be used further downstream. The takeaway point is that I need triangles.
More about the data: The data is of the type Large SpatialLinesDataFrame which represents topographical maps. I have some experience with converting this to spatialpoints/interpolating/rasterising etc., so this is not the crux of the problem. I understand the problems that arise (or don't) whether the data is regularly or irregularly spaced and am confident I would be able to coax the data between the two as required, so this is also not the crux of the problem.
The problem: Regardless of what the data format, I can't seem to find a library in R that would be able to calculate Delaunay (or any suitable) triangulations. Yes, there is
RTriangle but both these are limited to datasets in the same plane i.e 2D. Mountains tend to be 3D, so therein lies my problem.