Vector Analysis Operations

How can you find hospitals near railroads, or wetlands near oil wells? Your project materials may include vector geodata containing themes such as river networks, transportation infrastructure, property ownership, and land classification. Vector analysis operations use point, line, and polygon attributes and "topology" (spatial relationships such as adjacency, intersection, island, and inside/outside) to answer a host of analytical questions.

buffer zones

merge overlapping vectors

use elements by attributes

"cookie cutter" extraction

draw processing region

insert / replace

Union, Intersection, Subtract

combine adjacent vectors

trim to selected limits

combine / simplify elements

copy / paste

set tolerance distance

Vector Analysis Operations. (file date: 23 Mar 06)

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