[GRASS-user] Hidrological network

[ALT SHN]

Hello,

I Have a vector layer with all the rivers, and subsidiaries up to the
smallest water lines.
However I need to simplify this layer in order that it only shows the main
rivers and first, second and third order tributary water lines.

Any hints on how to achieve this?

Best Regards,

André Mano

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Associação Leonel Trindade
SOCIEDADE DE HISTÓRIA NATURAL

Apartado 25 2564-909 Torres Vedras Portugal
Sede e Biblioteca: rua Cavaleiros da Espora Dourada, 27A 2560 Torres Vedras

Laboratório de Paleontologia e Paleoecologia: Polígono Industrial do Alto
do Ameal 2565-641 Ramalhal
http://alt-shn.blogspot.com
www.alt-shn.org
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