This transformation makes a new map for use in other overlay analysis. Exclusionary buffers are quite common in regulations.
Setbacks are common in zoning.
In either case, the edge of objects form the basis for sending a contour outwards or inwards. GeoInfoSystems Table 1, selected for key differences. To generate a buffer, construct these objects around each segment, overlay all the objects, aggregate to remove duplicate areas. In the following figure notice that whole cells are included in the 150 foot buffer, even though each cell is 150 feet wide. Where the streams undulate, multiple cells can be included according to the Euclidean calculations used.