Terrain Modelling - Sketchup to Rhino
This video tutorial goes through the steps of importing OS Terrain Data into sketchup, loading it into rhino and tidying up and smoothing out the geometry. Please find time stamps below for the main sections of the video:
0:20 - Geolocating a project in SketchUp
0:53 - Accessing terrain data in SketchUp and exporting
1:16 - Importing the model into Rhino
2:11 - Cleaning up the mesh and converting it into a Nurbs object (MeshtoNURB)
4:05 - Creating contour lines from the faceted surface
7:00 - Using the patch tool to create a smooth surface from the contour lines
9:45 - Make2D techniques for terrains