I don't know much about GIS but I'm investigating a project that requires a 3D model of a hilly large town (town centre, suburbs, golfcourse, etc.). I'm not certain which file-type of these Geospatial Formats will give me the best data for the model.
I need the data to be able to distinguish between homes and their lawns (roof height), spaces between town buildings (most are less then 10 stories; with roof height), hills, valleys, and so on. Perhaps a resolution of 0.5 cubed-meter or less; I am guessing.
I need to create a 3d model of the surface of the area where the surface includes the buildings, trees and the like. I'll then be doing a few flow simulations on this 3D model. The is seeing how water (flood, industrial run-off), industrial smoke stack soot (pollution), industrial noise, and the like, travels through the area.
I plan on using the Mathematica technical computing software (+ some cold computing resources) for this and it only has the few Geospatial Formats mentioned in the link. It can make 3d models from point clouds and from elevation maps. I'm most concerned about the resolution I'll be able to get as I need the model to be able to make out buildings from other surrounding buildings in both in the recreational, residential, commercial, and industrial areas. Large tree line heights would also be very good to have in the data.
The data will be from an aerial survey but I need to specify the file-type.