A collection of image management and display tools in ArcInfo that allows vector and raster data to be displayed concurrently. Image integrator commands georeference images to real-world coordinates, display images, and manage image catalogs. Resistance may be a measure of travel distance, time, speed of travel times the length, and so on. Higher impedance indicates more resistance to movement, with 0 indicating no cost. Often, a negative impedance value indicates a barrier.
Impedance is used in network routing and allocation.
ArcInfo supports both spatial and attribute indexes. See also item indexing , cross-tile indexing and spatial indexing . The polygon coverage that describes, and is used as a spatial index for, the tile structure of a layer. Each polygon in an index coverage corresponds to a tile. INFO A tabular DBMS used by ArcInfo to store and manipulate feature attribute tables and other related tables.