GeoZui3D:
from Dr. Colin Ware, et al, Center for Coastal and Ocean Mapping, University of
New Hampshire.
GeoZui3D is rapidly evolving and for now freely
downloadable application. It is a fascinating tool for Try it out! Be prepared to lose track of time. Sample images are in order of creation, following the
learning curve. The images below were made using files produced by Norman Vine.
Take a look at some of his work. Here is a test color scheme for the area of Cultivator Shoals. Color changes are in 1 meter increments,
This example is the image of the Gulf of Maine produced by Roworth and Signell
draped over an 800 meter grid of the east coast.
3-dimensional display of terrestrial and subsea terrain with a rapid 'zooming' ability, good documentation,
straightforward entry and access, and recording functions allow the user to view and navigate datasets
at very near to video game quality. Datasets are large, so RAM and a good video card are essential.
The data grids for these first two were exported from ArcView, and as you can see even though the images
were flipped or rotated within GeoZui, the projection is incorrect, essentially upside down. GeoZui uses a
different format for the grid arrays than is produced via ArcView. Here there are no color attributes specified
for elevation, and the application displays the terrain with a default color. Also note that none of the water
area is drawn as the application will not render negative z values from the NGDC grid where sealevel is set to 0.
Same AV file with color lookup table added.
Above: working with colors to denote depth
Above: working with height exaggeration to bring out more subtle geologic features.
Above: working with draped jpeg, colors denote quartiles of where the scallop fleet fishes by time.
Above: working with draped backscatter imagery in Great South Channel (Valentine, USGS).
Yellow line is western edge of Closed Area 1. Heights are x50.
061802 Winding down the river toward Portsmouth, NH. Thanks to Matt Plumlee.
Resolution depends on grid size. This file is near as large as that for the entire east coast (40MB)
because the gridcellsize is only 3 meters whereas the cellsize of the earlier file is 15 arc seconds.
062402 Scallop fishing area off northern New Jersey. Data: USGS, modified by Norman Vine (3m grid, z x 10x).
062702 Here is an area just outside Portsmouth New Hampshire. Thanks again to Matt Plumlee.
the vertical resolution of the dataset.