This repository contains several modules for GRASS GIS. They are mainly designed to be used in conjunction with the r.stream to create stream spatial networks to be used with the R SSN package.

There are currently two modules:

1. v.sites.cont
2. v.edges.cont (To be added shortly)
3. v.streams.netid

This module determines the contributing area for each site in the vector. In addition the module also allows for the estimation of the contributing area statistics of raster maps of two types. Continuous variable and categorical type maps.

This module performs the same tasks as the v.sites.cont for the stream edges rather than the sites along the stream network.

This module determines the network id of each of the stream networks in the vector file using information in the attribute table of the vector file. In addition, this module also creates a seperate text file for each network with the binary IDs of each edge as needed by the SSN package.