I would like to add category names (Oak, Pine, Spruce, etc...) to these numbers.I have been looking around for a way to do it (r.reclass?, r.recode?). I'm just not sure what is the "approved" approach here. Any suggestions?
I would like to add category names (Oak, Pine, Spruce, etc...) to
these numbers.I have been looking around for a way to do it
(r.reclass?, r.recode?). I'm just not sure what is the "approved"
approach here. Any suggestions?
I am looking to edit a raster map's category information.
..
I would like to add category names (Oak, Pine, Spruce, etc...) to
these numbers.I have been looking around for a way to do it
(r.reclass?, r.recode?). I'm just not sure what is the "approved"
approach here. Any suggestions?
r.support will do it in interactive mode from the command line. That
uses the funny old esc-enter interface, but it works.
or edit the $MAPSET/cats/$MAPNAME file by hand, it's a simple text file.
Use one of the categorical spearfish maps as an example.
I am looking to edit a raster map's category information.
..
I would like to add category names (Oak, Pine, Spruce, etc...) to
these numbers.I have been looking around for a way to do it
(r.reclass?, r.recode?). I'm just not sure what is the "approved"
approach here. Any suggestions?
r.support will do it in interactive mode from the command line. That
uses the funny old esc-enter interface, but it works.
or edit the $MAPSET/cats/$MAPNAME file by hand, it's a simple text file.
Use one of the categorical spearfish maps as an example.
How complicated would it be to develop an optional tcl frontend (like
g.mapsets has) for
r.support/cats editing? The format isn't that complicated (4 header
lines, then ':' separated):
cat nc_spm_06/PERMANENT/cats/landuse96_28m
# 24 categories
South-West Wake county: NC Land Use 1996 clipped
0.00 0.00 0.00 0.00
0:not classified
1:High Intensity Developed
2:Low Intensity Developed
[...]
Markus
------------------
ITC -> dall'1 marzo 2007 Fondazione Bruno Kessler
ITC -> since 1 March 2007 Fondazione Bruno Kessler
------------------
I would like to add category names (Oak, Pine, Spruce, etc...) to
these numbers.I have been looking around for a way to do it
(r.reclass?, r.recode?). I'm just not sure what is the "approved"
approach here. Any suggestions?
Thanks,
Kirk
__________________________________________
Michael Barton, Professor of Anthropology
Director of Graduate Studies
School of Human Evolution & Social Change
Center for Social Dynamics & Complexity
Arizona State University
On 9/6/07 4:57 AM, "Markus Neteler" <neteler@itc.it> wrote:
Hamish wrote on 09/06/2007 12:45 PM:
Kirk Wythers wrote:
I am looking to edit a raster map's category information.
..
I would like to add category names (Oak, Pine, Spruce, etc...) to
these numbers.I have been looking around for a way to do it
(r.reclass?, r.recode?). I'm just not sure what is the "approved"
approach here. Any suggestions?
r.support will do it in interactive mode from the command line. That
uses the funny old esc-enter interface, but it works.
or edit the $MAPSET/cats/$MAPNAME file by hand, it's a simple text file.
Use one of the categorical spearfish maps as an example.
How complicated would it be to develop an optional tcl frontend (like
g.mapsets has) for
r.support/cats editing? The format isn't that complicated (4 header
lines, then ':' separated):
cat nc_spm_06/PERMANENT/cats/landuse96_28m
# 24 categories
South-West Wake county: NC Land Use 1996 clipped
0.00 0.00 0.00 0.00
0:not classified
1:High Intensity Developed
2:Low Intensity Developed
[...]
Markus
The main thing needed first is a way to get category information INTO
r.support from a file and/or stdin. Basically, it needs a "rules" file
option like has been added to r.reclass and r.recode. If it had the same
syntax as r.reclass, it would simplify things from a user point of view. We
could then just use the same simple 'rules' interface to change categories
and labels on an existing map as we do to reclassify a map. e.g....
0 = 0 not classified
1 thru 2 = 1 developed
Michael
__________________________________________
Michael Barton, Professor of Anthropology
Director of Graduate Studies
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University
The main thing needed first is a way to get category information INTO
r.support from a file and/or stdin. Basically, it needs a "rules" file
option like has been added to r.reclass and r.recode. If it had the same
syntax as r.reclass, it would simplify things from a user point of
view. We could then just use the same simple 'rules' interface to
change categories and labels on an existing map as we do to reclassify
a map. e.g....
0 = 0 not classified
1 thru 2 = 1 developed
You can't add that to r.support as the module is too general, it's not
just for cats.
it would either need two options:
rules=<<data>>
and
what_the_input_data_is=cats
or a bunch of flags to control that.
Seems messy- Probably better to have a new r.support.cats module to take
care of that? Writing the cats file is so simple I don't know if it
really needs its own C module, or if you can just write out the file
directly from the GUI.
the cats file format is detailed in sections 5.4 and! 12.11.9.2 of the
GRASS 5.0 Programmer's Manual. (I'm not sure where it is in the GRASS 6
prog manual) Note there are two different map titles, one from the cats
file, the other from the hist file (in r.info "title_cats (title_hist)")
On 9/6/07 8:40 PM, "Hamish" <hamish_nospam@yahoo.com> wrote:
Michael Barton wrote:
The main thing needed first is a way to get category information INTO
r.support from a file and/or stdin. Basically, it needs a "rules" file
option like has been added to r.reclass and r.recode. If it had the same
syntax as r.reclass, it would simplify things from a user point of
view. We could then just use the same simple 'rules' interface to
change categories and labels on an existing map as we do to reclassify
a map. e.g....
0 = 0 not classified
1 thru 2 = 1 developed
You can't add that to r.support as the module is too general, it's not
just for cats.
All the other stuff except for cats already seems to have an option to
enter. This is why I suggested it.
it would either need two options:
rules=<<data>>
and
what_the_input_data_is=cats
Not sure that I understand this. Is this something beyond what already can
be entered (I mean from the command line or GUI and not just from the old
interactive terminal app)?
or a bunch of flags to control that.
Seems messy- Probably better to have a new r.support.cats module to take
care of that? Writing the cats file is so simple I don't know if it
really needs its own C module, or if you can just write out the file
directly from the GUI.
the cats file format is detailed in sections 5.4 and! 12.11.9.2 of the
GRASS 5.0 Programmer's Manual. (I'm not sure where it is in the GRASS 6
prog manual) Note there are two different map titles, one from the cats
file, the other from the hist file (in r.info "title_cats (title_hist)")
Seems to me that these should be the same. Any reason that they should be
different?
e.g. 'r.neighbors method=diversity' creates a dynamic cats/ file.
I read the reference but I still don't really understand what this means.
Michael
Hamish
__________________________________________
Michael Barton, Professor of Anthropology
Director of Graduate Studies
School of Human Evolution & Social Change
Center for Social Dynamics & Complexity
Arizona State University
Seems messy- Probably better to have a new r.support.cats module to take
care of that? Writing the cats file is so simple I don't know if it
really needs its own C module, or if you can just write out the file
directly from the GUI.
Regardless of how simple the format is, there should be a C module to
do this. If the format were ever changed, the only code which should
need to be changed is lib/gis/cats.c.