At this stage we focused on the user interface design. Several tools allow a user to interact with the environment. The features include a toolbox to select color, glyph type and size. Creating a custom brush is supported by the design box which enables a user to create a paintbrush for marking different data points. The rotation interface allows the user to examine the entire data set from different angles.
All interaction employs audiofeedback in addition to visual response.
This picture shows views of the mid-Atlantic streams water chemistry data. The elevation of the region is shown as a surface on the floor, and the sampling sites are plotted on this surface. The viewing box contains the scatterplot of the measured variables. We have data on 501 sampling sites on streams in the mid-Atlantic states of Delaware, Maryland, New York, Pennsylvania, Virginia, and West Virginia. In addition to these measurements we have the latitude and longitude, elevation, and the Aggregated Omernik Level 4 ecoregion membership of each sampling site.