IGIS Tech Notes describe workflows and techniques for using geospatial science and technologies in research and extension. They are works in progress, and we welcome feedback and comments below.

A shapefile is often referred to as a "vector" layer. An "image" file contains a photo in a commonly used format like JPEG, GeoTiff, or MrSid. An image file will have a .jpg, .tif or .sid extension.

GIS technology was introduced in the early 1960s pioneered by Roger Tomlinson to design, store, collate, and analyze data about land usage in Canada. Today, hundreds of thousands of organizations ...

This provides a way to view and use your GIS layers on a mobile device and with GPS on devices that have it. A new menu, Advanced, adds ... Water Layer from Topo Blue Lines, creates a layer of likely ...