Everything you say is true
I would love to give formit another go, I’d be keen for Autodesk to come give a hard sell to my firm, I couldn’t get it moving last time, but that was before it became integrated into the design collection (or whatever it’s called).
My previous workflows for these kinds of tasks were dislocated and not so easy for a casual user to navigate.
The cute thing about DynaMaps is it’s giving you a single, really great interface to bring in high quality opensource data from a couple of sources …
Openstreetmap has vector information for buildings, streets, etc. as well as embedded information about heights etc.
The topo is bring brought from SRTM from NASA…
Right now, I’m using Elk to make more use of that info, but I believe that the next version of DynaView will bring a lot of enhancements to reduce that dependancy. But yu could absolutely bring in other info as well.
My attempts at making the lines and buildings sit on the topo were not great… Grabbing a polysurface and intersecting 1000’s of lines is slow, and the results were not very robust for making closed polycurves for extruding. So I intersected points and made lines from those, faster but not as accurate. The buildings I moved up, rather than properly intersecting, so again not perfect.
As I say, the overall effect is rough, but probably good enough for a background view, to work with the detailed foreground stuff… I’m imagining that the shear scale of bringing in a square mile of city for example would create enough impact…
Hope that’s of interest,