KARMA vI - Views Analysis of the planning and design processes in major infrastructure projects in The Netherlands showed that a 3D GIS system like KARMA vI should offer three different "view modes", each with it's own specific functionality. These views can be displayed simultaneously and a user can switch between or "zoom through" these views at any given time.

Plan View This is a 2D view mode that offers standard 2D GIS functionality like buffering, overlay, network and proximity analyses to the user and can serve as a 2D map in other view modes.      Plan View of the Delft University Campus area. The red-blue      arrow indicates the viewing position in the World View.

Model View In this view mode the 2D GIS data serve as a "map" to position 3D primitives or simple 3D CAD objects. The user can translate, rotate, scale and group the objects. 3D analyses like 'Line of Sight', calculation of distance and volumes are possible in this view.               Model View of the Delft University Campus area.

World View This is the more "realistic" representation of the GIS data. In this view, complex CAD models and texture maps can be added to the GIS map. The user can navigate through the world and query the GIS data.        World View of the Delft University Campus area, as seen             from the roof of the university conference building.                  (coloured yellow in Plan and Model View).

Last update:
07-01-1999