[GRASSLIST:8115] v.surf.rast

GRASS GRASS user
1

I have run this in the past with success several times. This time
around i'm not sure what i'm doing wrong.

My input parameters into the GUI are: vector file name (vector
contours), name of column (i have used the column with integer values
and floating point), and an output raster of surface, and an output
raster of the slope. Everything else is left default.

when i run the module, i get the following error:

Percent complete:
GRASS_INFO_ERROR(24024,1): Cannot find z column (please verify name)
Loading data from attribute table . . .

Any ideas? I have double/triple/quadruple checked the values in the
colum for interpolation, and they are there and valid.

2

Please copy and paste the command line (From the bottom of the GUI window,
after you run it, it displays the actuall cli)

Thomas Colson
North Carolina State University
Department of Forestry and Environmental Resources
(919) 673 8023
tom_colson@ncsu.edu

Calendar:
www4.ncsu.edu/~tpcolson

-----Original Message-----
From: owner-GRASSLIST@baylor.edu [mailto:owner-GRASSLIST@baylor.edu] On
Behalf Of M S
Sent: Monday, August 29, 2005 8:09 AM
To: GRASS mailing list
Subject: [GRASSLIST:8115] v.surf.rast

I have run this in the past with success several times. This time around
i'm not sure what i'm doing wrong.

My input parameters into the GUI are: vector file name (vector contours),
name of column (i have used the column with integer values and floating
point), and an output raster of surface, and an output raster of the slope.
Everything else is left default.

when i run the module, i get the following error:

Percent complete:
GRASS_INFO_ERROR(24024,1): Cannot find z column (please verify name) Loading
data from attribute table . . .

Any ideas? I have double/triple/quadruple checked the values in the colum
for interpolation, and they are there and valid.

3

v.surf.rst input=topopostwet layer=1 zcolumn=c2cont dmax=2.035683
dmin=0.407137 elev=surfpostwet slope=slopepostwet zmult=1.0
tension=40. smooth=0.1 segmax=40 npmin=200

Authors: original version - H.Mitasova, L.Mitas, I. Kosinovsky, D.P. Gerdes
See manual pages for reference and publications T3

Percent complete:
Cannot find z column (please verify name)
Loading data from attribute table ...

On 8/29/05, Tom Colson <tom_colson@ncsu.edu> wrote:

Please copy and paste the command line (From the bottom of the GUI window,
after you run it, it displays the actuall cli)

Thomas Colson
North Carolina State University
Department of Forestry and Environmental Resources
(919) 673 8023
tom_colson@ncsu.edu

Calendar:
www4.ncsu.edu/~tpcolson

-----Original Message-----
From: owner-GRASSLIST@baylor.edu [mailto:owner-GRASSLIST@baylor.edu] On
Behalf Of M S
Sent: Monday, August 29, 2005 8:09 AM
To: GRASS mailing list
Subject: [GRASSLIST:8115] v.surf.rast

I have run this in the past with success several times. This time around
i'm not sure what i'm doing wrong.

My input parameters into the GUI are: vector file name (vector contours),
name of column (i have used the column with integer values and floating
point), and an output raster of surface, and an output raster of the slope.
Everything else is left default.

when i run the module, i get the following error:

Percent complete:
GRASS_INFO_ERROR(24024,1): Cannot find z column (please verify name) Loading
data from attribute table . . .

Any ideas? I have double/triple/quadruple checked the values in the colum
for interpolation, and they are there and valid.

4

I don't have Grass running... But try it using the CLI (command line
interface, which you should know how to use anyway). The GUI, in my personal
opinion, isn't always the ideal method for running tools.

When you do it via the CLI, cut 'n paste that command, but drop
zcolumn=c2cont. Layer=1 should pick up the z col automagically. If that
doesn't work, COPY your layer and rename the c2cont field to z.

Thomas Colson
North Carolina State University
Department of Forestry and Environmental Resources
(919) 673 8023
tom_colson@ncsu.edu

Calendar:
www4.ncsu.edu/~tpcolson

-----Original Message-----
From: M S [mailto:mseibel@gmail.com]
Sent: Monday, August 29, 2005 8:19 AM
To: Tom Colson
Cc: GRASS mailing list
Subject: Re: [GRASSLIST:8115] v.surf.rast

v.surf.rst input=topopostwet layer=1 zcolumn=c2cont dmax=2.035683
dmin=0.407137 elev=surfpostwet slope=slopepostwet zmult=1.0 tension=40.
smooth=0.1 segmax=40 npmin=200

Authors: original version - H.Mitasova, L.Mitas, I. Kosinovsky, D.P. Gerdes
See manual pages for reference and publications T3

Percent complete:
Cannot find z column (please verify name) Loading data from attribute table
...

On 8/29/05, Tom Colson <tom_colson@ncsu.edu> wrote:

Please copy and paste the command line (From the bottom of the GUI
window, after you run it, it displays the actuall cli)

Thomas Colson
North Carolina State University
Department of Forestry and Environmental Resources
(919) 673 8023
tom_colson@ncsu.edu

Calendar:
www4.ncsu.edu/~tpcolson

-----Original Message-----
From: owner-GRASSLIST@baylor.edu [mailto:owner-GRASSLIST@baylor.edu]
On Behalf Of M S
Sent: Monday, August 29, 2005 8:09 AM
To: GRASS mailing list
Subject: [GRASSLIST:8115] v.surf.rast

I have run this in the past with success several times. This time
around i'm not sure what i'm doing wrong.

My input parameters into the GUI are: vector file name (vector
contours), name of column (i have used the column with integer values
and floating point), and an output raster of surface, and an output raster

of the slope.

Everything else is left default.

when i run the module, i get the following error:

Percent complete:
GRASS_INFO_ERROR(24024,1): Cannot find z column (please verify name)
Loading data from attribute table . . .

Any ideas? I have double/triple/quadruple checked the values in the
colum for interpolation, and they are there and valid.

5

d’oh. i should have known the column name was case sensitive… on my way

On 8/29/05, Tom Colson <tomd_colson@ncsu.edu > wrote:

I don’t have Grass running… But try it using the CLI (command line
interface, which you should know how to use anyway). The GUI, in my personal
opinion, isn’t always the ideal method for running tools.

When you do it via the CLI, cut 'n paste that command, but drop
zcolumn=c2cont. Layer=1 should pick up the z col automagically. If that
doesn’t work, COPY your layer and rename the c2cont field to z.

Thomas Colson
North Carolina State University
Department of Forestry and Environmental Resources
(919) 673 8023
tom_colson@ncsu.edu

Calendar:
www4.ncsu.edu/~tpcolson

-----Original Message-----
From: M S [mailto:mseibel@gmail.com ]
Sent: Monday, August 29, 2005 8:19 AM
To: Tom Colson
Cc: GRASS mailing list
Subject: Re: [GRASSLIST:8115] v.surf.rast

v.surf.rst input=topopostwet layer=1 zcolumn=c2cont dmax=2.035683
dmin=0.407137 elev=surfpostwet slope=slopepostwet zmult=1.0 tension=40.
smooth=0.1 segmax=40 npmin=200

Authors: original version - H.Mitasova, L.Mitas, I. Kosinovsky, D.P. Gerdes
See manual pages for reference and publications T3

Percent complete:
Cannot find z column (please verify name) Loading data from attribute table
…

On 8/29/05, Tom Colson <tom_colson@ncsu.edu> wrote:

Please copy and paste the command line (From the bottom of the GUI
window, after you run it, it displays the actuall cli)

Thomas Colson
North Carolina State University
Department of Forestry and Environmental Resources
(919) 673 8023
tom_colson@ncsu.edu

Calendar:
www4.ncsu.edu/~tpcolson

-----Original Message-----
From: owner-GRASSLIST@baylor.edu [mailto:owner-GRASSLIST@baylor.edu]
On Behalf Of M S
Sent: Monday, August 29, 2005 8:09 AM
To: GRASS mailing list
Subject: [GRASSLIST:8115] v.surf.rast

I have run this in the past with success several times. This time
around i’m not sure what i’m doing wrong.

My input parameters into the GUI are: vector file name (vector
contours), name of column (i have used the column with integer values
and floating point), and an output raster of surface, and an output raster
of the slope.
Everything else is left default.

when i run the module, i get the following error:

Percent complete:
GRASS_INFO_ERROR(24024,1): Cannot find z column (please verify name)
Loading data from attribute table . . .

Any ideas? I have double/triple/quadruple checked the values in the
colum for interpolation, and they are there and valid.

6

On Mon, Aug 29, 2005 at 08:00:50PM -0400, M S wrote:

d'oh. i should have known the column name was case sensitive... on my way

I have changed the error message to

ERROR: Cannot find z column <c2cont> (please verify name, e.g. with v.info)

Maybe helpful for the future.

Markus

On 8/29/05, Tom Colson <tomd_colson@ncsu.edu> wrote:
>
> I don't have Grass running... But try it using the CLI (command line
> interface, which you should know how to use anyway). The GUI, in my
> personal
> opinion, isn't always the ideal method for running tools.
>
> When you do it via the CLI, cut 'n paste that command, but drop
> zcolumn=c2cont. Layer=1 should pick up the z col automagically. If that
> doesn't work, COPY your layer and rename the c2cont field to z.
>
>
>
>
> Thomas Colson
> North Carolina State University
> Department of Forestry and Environmental Resources
> (919) 673 8023
> tom_colson@ncsu.edu
>
> Calendar:
> www4.ncsu.edu/~tpcolson <http://www4.ncsu.edu/~tpcolson&gt;
>
>
> -----Original Message-----
> From: M S [mailto:mseibel@gmail.com]
> Sent: Monday, August 29, 2005 8:19 AM
> To: Tom Colson
> Cc: GRASS mailing list
> Subject: Re: [GRASSLIST:8115] v.surf.rast
>
> v.surf.rst input=topopostwet layer=1 zcolumn=c2cont dmax=2.035683
> dmin=0.407137 elev=surfpostwet slope=slopepostwet zmult=1.0 tension=40.
> smooth=0.1 segmax=40 npmin=200
>
> Authors: original version - H.Mitasova, L.Mitas, I. Kosinovsky, D.P.
> Gerdes
> See manual pages for reference and publications T3
>
> Percent complete:
> Cannot find z column (please verify name) Loading data from attribute
> table
> ...
>
>
>
> On 8/29/05, Tom Colson <tom_colson@ncsu.edu> wrote:
> >
> > Please copy and paste the command line (From the bottom of the GUI
> > window, after you run it, it displays the actuall cli)
> >
> > Thomas Colson
> > North Carolina State University
> > Department of Forestry and Environmental Resources
> > (919) 673 8023
> > tom_colson@ncsu.edu
> >
> > Calendar:
> > www4.ncsu.edu/~tpcolson <http://www4.ncsu.edu/~tpcolson&gt;
> >
> >
> > -----Original Message-----
> > From: owner-GRASSLIST@baylor.edu [mailto:owner-GRASSLIST@baylor.edu]
> > On Behalf Of M S
> > Sent: Monday, August 29, 2005 8:09 AM
> > To: GRASS mailing list
> > Subject: [GRASSLIST:8115] v.surf.rast
> >
> > I have run this in the past with success several times. This time
> > around i'm not sure what i'm doing wrong.
> >
> > My input parameters into the GUI are: vector file name (vector
> > contours), name of column (i have used the column with integer values
> > and floating point), and an output raster of surface, and an output
> raster
> of the slope.
> > Everything else is left default.
> >
> > when i run the module, i get the following error:
> >
> > Percent complete:
> > GRASS_INFO_ERROR(24024,1): Cannot find z column (please verify name)
> > Loading data from attribute table . . .
> >
> >
> > Any ideas? I have double/triple/quadruple checked the values in the
> > colum for interpolation, and they are there and valid.
> >
> >
> >
>
>

--
Markus Neteler <neteler itc it> http://mpa.itc.it
ITC-irst - Centro per la Ricerca Scientifica e Tecnologica
MPBA - Predictive Models for Biol. & Environ. Data Analysis
Via Sommarive, 18 - 38050 Povo (Trento), Italy

7

nice! thanks!

On 8/30/05, Markus Neteler <neteler@itc.it> wrote:

On Mon, Aug 29, 2005 at 08:00:50PM -0400, M S wrote:

d’oh. i should have known the column name was case sensitive… on my way

I have changed the error message to

ERROR: Cannot find z column (please verify name, e.g. with v.info)

Maybe helpful for the future.

Markus

On 8/29/05, Tom Colson <tomd_colson@ncsu.edu> wrote:

I don’t have Grass running… But try it using the CLI (command line
interface, which you should know how to use anyway). The GUI, in my
personal
opinion, isn’t always the ideal method for running tools.

When you do it via the CLI, cut 'n paste that command, but drop
zcolumn=c2cont. Layer=1 should pick up the z col automagically. If that
doesn’t work, COPY your layer and rename the c2cont field to z.

Thomas Colson
North Carolina State University
Department of Forestry and Environmental Resources
(919) 673 8023
tom_colson@ncsu.edu

Calendar:
www4.ncsu.edu/~tpcolson < http://www4.ncsu.edu/~tpcolson>

-----Original Message-----
From: M S [mailto:mseibel@gmail.com]
Sent: Monday, August 29, 2005 8:19 AM
To: Tom Colson
Cc: GRASS mailing list
Subject: Re: [GRASSLIST:8115] v.surf.rast

v.surf.rst input=topopostwet layer=1 zcolumn=c2cont dmax=2.035683
dmin= 0.407137 elev=surfpostwet slope=slopepostwet zmult=1.0 tension=40.
smooth=0.1 segmax=40 npmin=200

Authors: original version - H.Mitasova, L.Mitas, I. Kosinovsky, D.P.
Gerdes
See manual pages for reference and publications T3

Percent complete:
Cannot find z column (please verify name) Loading data from attribute
table
…

On 8/29/05, Tom Colson <tom_colson@ncsu.edu> wrote:

Please copy and paste the command line (From the bottom of the GUI
window, after you run it, it displays the actuall cli)

Thomas Colson
North Carolina State University
Department of Forestry and Environmental Resources
(919) 673 8023
tom_colson@ncsu.edu

Calendar:
www4.ncsu.edu/~tpcolson <http://www4.ncsu.edu/~tpcolson>

-----Original Message-----
From: owner-GRASSLIST@baylor.edu [mailto:owner-GRASSLIST@baylor.edu]
On Behalf Of M S
Sent: Monday, August 29, 2005 8:09 AM
To: GRASS mailing list
Subject: [GRASSLIST:8115] v.surf.rast

I have run this in the past with success several times. This time
around i’m not sure what i’m doing wrong.

My input parameters into the GUI are: vector file name (vector
contours), name of column (i have used the column with integer values
and floating point), and an output raster of surface, and an output
raster
of the slope.
Everything else is left default.

when i run the module, i get the following error:

Percent complete:
GRASS_INFO_ERROR(24024,1): Cannot find z column (please verify name)
Loading data from attribute table . . .

Any ideas? I have double/triple/quadruple checked the values in the
colum for interpolation, and they are there and valid.

–
Markus Neteler http://mpa.itc.it
ITC-irst - Centro per la Ricerca Scientifica e Tecnologica
MPBA - Predictive Models for Biol. & Environ. Data Analysis
Via Sommarive, 18 - 38050 Povo (Trento), Italy