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Wiki.GIS.com - The GIS Encyclopedia

Wiki.GIS.com is an encyclopedia dedicated to geographic information systems (GIS).

This repository incorporates contributions from the GIS community for the benefit of GIS professionals, students, and anyone with an interest in GIS. The wiki contains informative articles about GIS concepts, new technologies, products, people, and organizations.

Anyone who has any knowledge of GIS is more than welcome to create an account and start sharing that information by creating new pages or expanding existing pages.

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Learn the basics of Geographic Information Systems.
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Featured Content

Visual Hierarchy

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Visual hierarchy is the order in which the human eye perceives what it sees. It is used in cartography to help the map designer create a product where the viewer will process the information presented in order from the most important to the least important. This can be achieved by manipulating different pieces of a map such as its color contrast, symbology, texture, shape, position, scale, orientation and size. ... more

Exclusive Content

System Design Strategies

System Design Strategies is an exclusive resource for the successful design and deployment for geographic information systems technology. This documentation is provided to share system architecture design methodology and the fundamental principles that contribute to system performance and scalability.

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GIS Trivia

Can you survive our GIS Trivia Challenge?

The system that divides a chart of the world with latitude-longitude gridlines between 80 deg. N and 70 deg. S latitudes into grid cells of 10 deg. latitude by 10 deg. longitude.

  1. Marsden square
  2. Spatial Index
  3. Geodesic grid

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