[GRASS-user] Pixels values are changed when the layer is exported to vector (column "value" in attribute tables)
Marcello Benigno
benigno.marcello at gmail.com
Wed May 2 10:20:46 EDT 2012
Hello All,
After creating my stream network with the command *r.stream.order*, I
converted the result to vector, with the command *r.to.vect*, something
wrong happened... the values that were associated with the pixels appear
exchanged for some features (e.g., in the raster the pixel value is "1" and
in the vector appears "2"). I wonder if my procedure is wrong or there
might be some problem related to my data (SRTM) when even a possible GRASS
bug.
The link below shows the two overlying layers (problem.png) and it is
possible to find some places where the values of the raster layer
(raster.png) does not correspond to the values of the vector layer
(vector.png).
http://ge.tt/4FR2l7H?c
Could anyone help me?
Thanks in advance *: )*
--
*Marcello Benigno B. de Barros Filho*
Prof. do Curso Superior de Tecnologia em Geoprocessamento - IFPB
Mestre em Ciências Geodésicas e Tecnologias da Geoinformação - UFPE
Doutorando em Tecnologia Ambiental e Recursos Hídricos - UFPE
http://profmarcello.blogspot.com
http://about.me/marcello.benigno
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