Index
Datatypes A-Z GIS Analysis

Organizing Data

Before starting to analyze, process and squeeze your data with IDRISI, you have to tell it where to find them. All working data (eg. for a project) are commonly stored in one directory. That's the reason, why IDRISI does not meet the conventional menu structure of most WINDOWS programs (File, Edit, ...) - instead of opening files first, you have to point IDRISI to the directory holding your project data. This is done by ENVIRON. IDRISI stores that path until you change it, in a simple ASCII-file (IDRISI.ENV) which resides in the IDRISIW program directory:

How does IDRISI work?

In general IDRISI modules take(s) one (to many) image(s) as input and calculate one (to many) output raster file(s). Several modules face you with table results or both. And a view will face you with graphs. To avoid inadvertently overwriting, switch on the Overwrite Protection in the ENVIRONMENT menue.

The main suite of data organizing modules is found in the File menue:

LIST
lists the files in your data directory
DESCRIBE
shows the contents of header files for images, vectors, attribute value and project reference files
DOCUMENT
allows making changes or creating new image, vector and attribute value documentation files
COPY, RENAME, DELETE
these modules perform the same actions as they are named. Of particular importance is the fact, that they act on file-pairs - *.IMG/*.DOC, *.VEC/*.DVC, *.VAL/*.DVL, ...
An integration of all functionality listed above seems to be very likely and is highly desirable for future versions.
Index
Datatypes GIS Analysis
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