[GRASS-user] How we can Import data using XLS file rather csv and how we can build polygon by two or more line arc

GRASS GRASS user
1

Hello Grass User,

Any one can solve me the problem like-“How we can Import data using XLS file rather csv and how we can build polygon by two or more line-arc”.

Regards,

Swapan Ghosh

2

Hi,

2012/2/29 SWAPAN GHOSH <swap.ghsh@gmail.com>:

Any one can solve me the problem like-"How we can Import data using XLS file
rather csv"

try `v.in.ogr` with the most recent version of GDAL/OGR (ensure that
XLS driver is built [1]).

v.in.ogr -f
Available OGR Drivers:
...
XLS (ro): XLS
...

Martin

[1] http://gdal.org/ogr/drv_xls.html

--
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa

3

On Wed, Feb 29, 2012 at 6:44 AM, SWAPAN GHOSH <swap.ghsh@gmail.com> wrote:

Hello Grass User,

Any one can solve me the problem like-"How we can Import data using XLS file
rather csv and

(see Martin's answer)

how we can build polygon by two or more line-arc".

You need to convert the lines into "boundary" type with v.type
and then add a centroid with v.centroid. See also

http://grass.osgeo.org/wiki/Convert_vector_types

Markus

4

I am not satisfied with the answer with respect to the problem as " how we can build polygon by two or more line-arc ". The way said I am trying before that and I need more appropriate practical way not just concept.

Regards,

Swapan Ghosh

On Wed, Feb 29, 2012 at 4:56 PM, Markus Neteler <neteler@osgeo.org> wrote:

On Wed, Feb 29, 2012 at 6:44 AM, SWAPAN GHOSH <swap.ghsh@gmail.com> wrote:

Hello Grass User,

Any one can solve me the problem like-"How we can Import data using XLS file
rather csv and

(see Martin’s answer)

how we can build polygon by two or more line-arc".

You need to convert the lines into “boundary” type with v.type
and then add a centroid with v.centroid. See also

http://grass.osgeo.org/wiki/Convert_vector_types

Markus

5

On Thu, Mar 1, 2012 at 8:09 AM, SWAPAN GHOSH <swap.ghsh@gmail.com> wrote:

I am not satisfied with the answer with respect to the problem as " how we
can build polygon by two or more line-arc ".

Sorry about this.

The way said I am trying before
that and I need more appropriate practical way not just concept.

Then consider to be a bit more detailed with your question...

Markus