Triangulated Irregular Network (TIN)
of the Island of San Salvador in the Bahamas.
The model was created
using ArcView 3.3 and the Image Analysis Extension. A topographic map
from the United Kingdom was scanned in pieces and "cleaned up" in
Adobe Photoshop. The image was loaded into ArcView using Image
Anlysis and the contours were hand digitized using ArcView. The
polyline data and verticies were converted to points using another
extension. The points that now had a Z (elevation) value was used
to create a Triangulated Irregular Network and a Digital Elevation Model
(DEM). This was done using both ArcView and Global Mapper.
San Salvador Island is where Christopher Columbus made his first
landfall in " The New World" in 1492. It is an incredible place
to visit.
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