Performing a GIS analysis may require a repeated execution of some more complex algorithms. These can be done in various modes depending on the used GIS software. This article shows some of the existing possibilities, including the native ways offered by several GIS software (macros, script languages), but also shows some other ways using special function libraries and software development platforms.
The second category was investigated because, the traditionally existing modalities to construct and reuse an algorithm lack either on controlling issues (no cycle, no decision possibilities), or in interface construction. We don’t want to recreate some GIS environment from bases, but to use the existing ones, in a general programming environment.
As an example, we resolved the same tutorial problem using all major possibilities based on IDRISI Kilimajaro Edition. The finally created GIS platform offers free parameterization and execution controlling combined with an easy interface.