Q-GIS Glossary,

Posted on Jul 2, 2007 By : Unknown
This glossary is a sub-set of one developed by the Urban and Regional Information
Systems Association (URISA)


Query
A logical search specification finding spatial features with linked records that contain matching geographic and/or non-graphic attributes. A typical spatial query is the comparison of XY coordinates of features/records with a user-defined spatial window (square, rectangle, circle, or multipoint polygon). Conversely, a query can refer when you ask for various combinations of non-graphic attribute assignments that meet specific specific conditions (e.g., =, <, >, in a set, etc.; also called "Boolean conditions").


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Still None Awesome so far » Be the 1st Awesome to Q-GIS Glossary,

Post a Comment

Popular (Weekly Updated)

Eksternal (Google Powered)

Archives

powered by
Socialbar