Height difference between contour lines in NYC 's 3d model is?

@Helvetosaur @John_Brock I actually think the contours are 1 meter increments despite the rest of the model being in feet based in the New York State Plane Coordinates, Long Island East Zone, NAD83, US foot (EPSG:2263) datum per the NYC github.

When I checked the Lidar point cloud against the DEM provided by the state (REST service), the elevations seem to match. The point cloud also matches the building geometry from the Rhino file, so I believe Rhino model, Lidar point cloud and DEM are all at the same scale. The pink lines in the image below show a 1 foot contour of the DEM at the Carey Tunnel entrance in the Battery, which you can see is much more frequent than the black contours lines that come with the Rhino file.

Note, according to the metadata, the contour lines in the file are generated from a survey from 2006, so areas like the World Trade Center are not updated.

-Brian