André wrote:
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?
try the
On 01/30/2012 04:32 PM, Helmut Kudrnovsky wrote:
André wrote:
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.
Thank you for your suggestions. It seems I will be having a hard time!!
@Jarek - The vector has a good topology (I tested the topology using the
layer to run a simple nearest path analysis and it worked, so I assume it's
ok) I checked the attribute table and it has hundreds of objects and only
André:
Is it possible to test tha tool through QGIS?
[v.strahler]
you'd have to make a .qgm file for it, see in the qgis source code for
examples:
trunk/src/plugins/grass/modules-common/
and add an entry in:
trunk/src/plugins/grass/config/default.qgc
(or if installed from a package
Hi Andr,
You mention that you have streams of different 'order', does that mean
you have a table connected with a column containing a value for each bit
of stream (e.g. the river and tributaries are a combination of vector
lines, and each line between one stream junction and the next has a
