You can use SAGA GIS to short out your problem.<br><br><div class="gmail_quote">On Thu, May 13, 2010 at 1:25 AM, <span dir="ltr"><<a href="mailto:qgis-user-request@lists.osgeo.org">qgis-user-request@lists.osgeo.org</a>></span> wrote:<br>
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Today's Topics:<br>
<br>
1. Creating polygon from points in csv file (mir)<br>
2. GPS CRS (Arthur Nanni)<br>
3. Re: GPS CRS (Alex Mandel)<br>
4. Re: Creating polygon from points in csv file (nikos ves)<br>
5. Re: Creating polygon from points in csv file (M S)<br>
6. Re: Creating polygon from points in csv file (nikos ves)<br>
7. Re: Creating polygon from points in csv file (Gerald Creager)<br>
8. Re: Creating polygon from points in csv file (nikos ves)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Wed, 12 May 2010 12:11:40 -0500<br>
From: mir <<a href="mailto:mir123@gmail.com">mir123@gmail.com</a>><br>
Subject: [Qgis-user] Creating polygon from points in csv file<br>
To: <a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a><br>
Message-ID:<br>
<<a href="mailto:AANLkTin4XbjcvZJZIro9BFk0G_FjuVcmn0Jb_4UfGovl@mail.gmail.com">AANLkTin4XbjcvZJZIro9BFk0G_FjuVcmn0Jb_4UfGovl@mail.gmail.com</a>><br>
Content-Type: text/plain; charset=ISO-8859-1<br>
<br>
Hello all,<br>
<br>
I have a list of points in sequence that define a polygon. This is<br>
taken from a legal document defining a piece of land. So far I have<br>
been able to import this into Qgis as points. How do I import it as a<br>
polygon (or convert the points to a polygon? I have tried to use<br>
GRASS, importing it as an ASCII file, but I guess I never got the<br>
ASCII polygon format down.<br>
<br>
I'm sure there must be an asy way. Help!<br>
<br>
mir<br>
<br>
--<br>
_________________<br>
Mir Rodríguez Lombardo<br>
Fundación Almanaque Azul<br>
Calle 4a San Felipe, antigua Santa Familia<br>
Ciudad de Panamá<br>
tel +507 836 6452<br>
cel 6644 9214<br>
<br>
<br>
------------------------------<br>
<br>
Message: 2<br>
Date: Wed, 12 May 2010 14:34:42 -0300<br>
From: Arthur Nanni <<a href="mailto:arthur.nanni@gmail.com">arthur.nanni@gmail.com</a>><br>
Subject: [Qgis-user] GPS CRS<br>
To: <a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a><br>
Message-ID:<br>
<<a href="mailto:AANLkTil6L9ff49fdU4863J_ugnx7xDkJtDmXwnaPkcpq@mail.gmail.com">AANLkTil6L9ff49fdU4863J_ugnx7xDkJtDmXwnaPkcpq@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Hi,<br>
<br>
I've problems whem I try download waypoints from Garmin GPS with GPS plugin<br>
in the same CRS of the Garmin setup.<br>
<br>
The Garmin was WGS84 - UTM<br>
In the QGIS canvas the downloaded points appears in Lat/Long decimal degree.<br>
<br>
How I get this points in the original CRS of Garmin?<br>
<br>
Like an alternative I try change the CRS in the layer (Lat/Long DD) with<br>
ftools option, but with no success.<br>
<br>
Some idea?<br>
<br>
Thanks in advance.<br>
<br>
--<br>
Arthur<br>
Chegou Ubuntu Linux 10.04. Experimente a liberdade! Conheça em<br>
<a href="http://www.ubuntu-br.org" target="_blank">http://www.ubuntu-br.org</a><br>
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Message: 3<br>
Date: Wed, 12 May 2010 10:43:24 -0700<br>
From: Alex Mandel <<a href="mailto:tech_dev@wildintellect.com">tech_dev@wildintellect.com</a>><br>
Subject: Re: [Qgis-user] GPS CRS<br>
To: Arthur Nanni <<a href="mailto:arthur.nanni@gmail.com">arthur.nanni@gmail.com</a>><br>
Cc: <a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a><br>
Message-ID: <<a href="mailto:4BEAE8BC.8020206@wildintellect.com">4BEAE8BC.8020206@wildintellect.com</a>><br>
Content-Type: text/plain; charset=ISO-8859-1<br>
<br>
Arthur Nanni wrote:<br>
> Hi,<br>
><br>
> I've problems whem I try download waypoints from Garmin GPS with GPS plugin<br>
> in the same CRS of the Garmin setup.<br>
><br>
> The Garmin was WGS84 - UTM<br>
> In the QGIS canvas the downloaded points appears in Lat/Long decimal degree.<br>
><br>
> How I get this points in the original CRS of Garmin?<br>
><br>
> Like an alternative I try change the CRS in the layer (Lat/Long DD) with<br>
> ftools option, but with no success.<br>
><br>
> Some idea?<br>
><br>
> Thanks in advance.<br>
><br>
><br>
The original CRS of the Garmin is WGS 84 Lat/Long. The fact that you saw<br>
UTM on the screen is an on the fly conversion on the GPS. Most Garmins<br>
for many years have only stored Lat/Long in it's actual data.<br>
<br>
You will need to download the data and reproject(in ftools) it to the<br>
UTM zone you are working in.<br>
<br>
Alex<br>
<br>
<br>
<br>
------------------------------<br>
<br>
Message: 4<br>
Date: Wed, 12 May 2010 20:49:43 +0300<br>
From: nikos ves <<a href="mailto:vesnikos@gmail.com">vesnikos@gmail.com</a>><br>
Subject: Re: [Qgis-user] Creating polygon from points in csv file<br>
To: mir <<a href="mailto:mir123@gmail.com">mir123@gmail.com</a>><br>
Cc: <a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a><br>
Message-ID: <1273686583.16209.4.camel@nikos-desktop><br>
Content-Type: text/plain; charset="UTF-8"<br>
<br>
On Wed, 2010-05-12 at 12:11 -0500, mir wrote:<br>
> Hello all,<br>
><br>
> I have a list of points in sequence that define a polygon. This is<br>
> taken from a legal document defining a piece of land. So far I have<br>
> been able to import this into Qgis as points. How do I import it as a<br>
> polygon (or convert the points to a polygon? I have tried to use<br>
> GRASS, importing it as an ASCII file, but I guess I never got the<br>
> ASCII polygon format down.<br>
><br>
> I'm sure there must be an asy way. Help!<br>
><br>
> mir<br>
><br>
<br>
You can use the "Points2One" plugin which makes the task you need.<br>
As input takes a point layer and as output gives a polygon or a<br>
polyline. In your case you can choose polygon.<br>
<br>
Be careful with the order of the points, otherwise you might get funny<br>
results.<br>
<br>
eg |1 2| is fine , but<br>
|4 3|<br>
<br>
|1 2| will intersect with itself, making two triangles!<br>
|3 4|<br>
<br>
<br>
Ves Nikos<br>
<br>
<br>
<br>
------------------------------<br>
<br>
Message: 5<br>
Date: Wed, 12 May 2010 13:51:29 -0400<br>
From: M S <<a href="mailto:mseibel@gmail.com">mseibel@gmail.com</a>><br>
Subject: Re: [Qgis-user] Creating polygon from points in csv file<br>
To: mir <<a href="mailto:mir123@gmail.com">mir123@gmail.com</a>><br>
Cc: <a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a><br>
Message-ID:<br>
<<a href="mailto:AANLkTilMIa18pLtRLfZjb8cM3WlWpXiWGDPATxItIwtY@mail.gmail.com">AANLkTilMIa18pLtRLfZjb8cM3WlWpXiWGDPATxItIwtY@mail.gmail.com</a>><br>
Content-Type: text/plain; charset=ISO-8859-1<br>
<br>
I guess the practically of this suggestion depends on how many points.<br>
How about digitizing and snapping the new polygon to the points?<br>
<br>
Mark<br>
<br>
On Wed, May 12, 2010 at 1:11 PM, mir <<a href="mailto:mir123@gmail.com">mir123@gmail.com</a>> wrote:<br>
> Hello all,<br>
><br>
> I have a list of points in sequence that define a polygon. This is<br>
> taken from a legal document defining a piece of land. So far I have<br>
> been able to import this into Qgis as points. How do I import it as a<br>
> polygon (or convert the points to a polygon? I have tried to use<br>
> GRASS, importing it as an ASCII file, but I guess I never got the<br>
> ASCII polygon format down.<br>
><br>
> I'm sure there must be an asy way. Help!<br>
><br>
> mir<br>
><br>
> --<br>
> _________________<br>
> Mir Rodríguez Lombardo<br>
> Fundación Almanaque Azul<br>
> Calle 4a San Felipe, antigua Santa Familia<br>
> Ciudad de Panamá<br>
> tel +507 836 6452<br>
> cel 6644 9214<br>
> _______________________________________________<br>
> Qgis-user mailing list<br>
> <a href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a><br>
> <a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
><br>
<br>
<br>
------------------------------<br>
<br>
Message: 6<br>
Date: Wed, 12 May 2010 21:02:54 +0300<br>
From: nikos ves <<a href="mailto:vesnikos@gmail.com">vesnikos@gmail.com</a>><br>
Subject: Re: [Qgis-user] Creating polygon from points in csv file<br>
To: <a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a><br>
Message-ID: <1273687374.16209.13.camel@nikos-desktop><br>
Content-Type: text/plain; charset="UTF-8"<br>
<br>
On Wed, 2010-05-12 at 13:51 -0400, M S wrote:<br>
> I guess the practically of this suggestion depends on how many points.<br>
> How about digitizing and snapping the new polygon to the points?<br>
><br>
> Mark<br>
><br>
This would also work, but the why bother, since already has the points<br>
in a csv file?<br>
<br>
One problem I see, is multiple polygones merged in One big messy<br>
polygone due to hte fact that it cant "understand" where a polygon ends<br>
and the next one starts. If that case arise a little editing comes<br>
handy.<br>
<br>
The whole point as I see it is to minimize doing double work<br>
<br>
<br>
Ofcouse if the plugin is inadequate for the job, the next option is to<br>
shape the polygons from, as Mark said, the points mir already has<br>
utilizing the snap feature<br>
<br>
<br>
<br>
> On Wed, May 12, 2010 at 1:11 PM, mir <<a href="mailto:mir123@gmail.com">mir123@gmail.com</a>> wrote:<br>
> > Hello all,<br>
> ><br>
> > I have a list of points in sequence that define a polygon. This is<br>
> > taken from a legal document defining a piece of land. So far I have<br>
> > been able to import this into Qgis as points. How do I import it as a<br>
> > polygon (or convert the points to a polygon? I have tried to use<br>
> > GRASS, importing it as an ASCII file, but I guess I never got the<br>
> > ASCII polygon format down.<br>
> ><br>
> > I'm sure there must be an asy way. Help!<br>
> ><br>
> > mir<br>
> ><br>
> > --<br>
> > _________________<br>
> > Mir RodrÃguez Lombardo<br>
> > Fundación Almanaque Azul<br>
> > Calle 4a San Felipe, antigua Santa Familia<br>
> > Ciudad de Panamá<br>
> > tel +507 836 6452<br>
> > cel 6644 9214<br>
> > _______________________________________________<br>
> > Qgis-user mailing list<br>
> > <a href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a><br>
> > <a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
> ><br>
> _______________________________________________<br>
> Qgis-user mailing list<br>
> <a href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a><br>
> <a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
<br>
<br>
<br>
<br>
------------------------------<br>
<br>
Message: 7<br>
Date: Wed, 12 May 2010 13:44:31 -0500<br>
From: Gerald Creager <<a href="mailto:gerry.creager@tamu.edu">gerry.creager@tamu.edu</a>><br>
Subject: Re: [Qgis-user] Creating polygon from points in csv file<br>
To: nikos ves <<a href="mailto:vesnikos@gmail.com">vesnikos@gmail.com</a>><br>
Cc: <a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a><br>
Message-ID: <<a href="mailto:4BEAF70F.7050401@tamu.edu">4BEAF70F.7050401@tamu.edu</a>><br>
Content-Type: text/plain; charset=UTF-8; format=flowed<br>
<br>
Nikos, will Points2One work for lines, as well, or just for polygons? I<br>
have a similar issue: I need to create polylines from a CSV file... I,<br>
too, can digitize the points into lines, but, why?<br>
<br>
Thanks Gerry<br>
<br>
nikos ves wrote:<br>
> On Wed, 2010-05-12 at 13:51 -0400, M S wrote:<br>
>> I guess the practically of this suggestion depends on how many points.<br>
>> How about digitizing and snapping the new polygon to the points?<br>
>><br>
>> Mark<br>
>><br>
> This would also work, but the why bother, since already has the points<br>
> in a csv file?<br>
><br>
> One problem I see, is multiple polygones merged in One big messy<br>
> polygone due to hte fact that it cant "understand" where a polygon ends<br>
> and the next one starts. If that case arise a little editing comes<br>
> handy.<br>
><br>
> The whole point as I see it is to minimize doing double work<br>
><br>
><br>
> Ofcouse if the plugin is inadequate for the job, the next option is to<br>
> shape the polygons from, as Mark said, the points mir already has<br>
> utilizing the snap feature<br>
><br>
><br>
><br>
>> On Wed, May 12, 2010 at 1:11 PM, mir <<a href="mailto:mir123@gmail.com">mir123@gmail.com</a>> wrote:<br>
>>> Hello all,<br>
>>><br>
>>> I have a list of points in sequence that define a polygon. This is<br>
>>> taken from a legal document defining a piece of land. So far I have<br>
>>> been able to import this into Qgis as points. How do I import it as a<br>
>>> polygon (or convert the points to a polygon? I have tried to use<br>
>>> GRASS, importing it as an ASCII file, but I guess I never got the<br>
>>> ASCII polygon format down.<br>
>>><br>
>>> I'm sure there must be an asy way. Help!<br>
>>><br>
>>> mir<br>
>>><br>
>>> --<br>
>>> _________________<br>
>>> Mir RodrÃguez Lombardo<br>
>>> Fundación Almanaque Azul<br>
>>> Calle 4a San Felipe, antigua Santa Familia<br>
>>> Ciudad de Panamá<br>
>>> tel +507 836 6452<br>
>>> cel 6644 9214<br>
>>> _______________________________________________<br>
>>> Qgis-user mailing list<br>
>>> <a href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a><br>
>>> <a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
>>><br>
>> _______________________________________________<br>
>> Qgis-user mailing list<br>
>> <a href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a><br>
>> <a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
><br>
><br>
> _______________________________________________<br>
> Qgis-user mailing list<br>
> <a href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a><br>
> <a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
<br>
--<br>
Gerry Creager -- <a href="mailto:gerry.creager@tamu.edu">gerry.creager@tamu.edu</a><br>
Texas Mesonet -- AATLT, Texas A&M University<br>
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983<br>
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843<br>
<br>
<br>
------------------------------<br>
<br>
Message: 8<br>
Date: Wed, 12 May 2010 22:55:27 +0300<br>
From: nikos ves <<a href="mailto:vesnikos@gmail.com">vesnikos@gmail.com</a>><br>
Subject: Re: [Qgis-user] Creating polygon from points in csv file<br>
To: <a href="mailto:gerry.creager@tamu.edu">gerry.creager@tamu.edu</a><br>
Cc: <a href="mailto:qgis-user@lists.osgeo.org">qgis-user@lists.osgeo.org</a><br>
Message-ID: <1273694127.19243.29.camel@nikos-desktop><br>
Content-Type: text/plain; charset="UTF-8"<br>
<br>
On Wed, 2010-05-12 at 13:44 -0500, Gerald Creager wrote:<br>
> Nikos, will Points2One work for lines, as well, or just for polygons? I<br>
> have a similar issue: I need to create polylines from a CSV file... I,<br>
> too, can digitize the points into lines, but, why?<br>
><br>
> Thanks Gerry<br>
><br>
<br>
Just test it, It successfully made a line across all the points, except<br>
for the inconvenience that is making just ONE line.<br>
<br>
Unfortunately, as I've found, QGIS lacks vertex-level editing (delete<br>
multiple vertices in line/polygon; move multiple vertices) at least in<br>
v1.1 which seems to be the case in 1.5.<br>
<br>
<br>
<br>
<br>
> nikos ves wrote:<br>
> > On Wed, 2010-05-12 at 13:51 -0400, M S wrote:<br>
> >> I guess the practically of this suggestion depends on how many points.<br>
> >> How about digitizing and snapping the new polygon to the points?<br>
> >><br>
> >> Mark<br>
> >><br>
> > This would also work, but the why bother, since already has the points<br>
> > in a csv file?<br>
> ><br>
> > One problem I see, is multiple polygones merged in One big messy<br>
> > polygone due to hte fact that it cant "understand" where a polygon ends<br>
> > and the next one starts. If that case arise a little editing comes<br>
> > handy.<br>
> ><br>
> > The whole point as I see it is to minimize doing double work<br>
> ><br>
> ><br>
> > Ofcouse if the plugin is inadequate for the job, the next option is to<br>
> > shape the polygons from, as Mark said, the points mir already has<br>
> > utilizing the snap feature<br>
> ><br>
> ><br>
> ><br>
> >> On Wed, May 12, 2010 at 1:11 PM, mir <<a href="mailto:mir123@gmail.com">mir123@gmail.com</a>> wrote:<br>
> >>> Hello all,<br>
> >>><br>
> >>> I have a list of points in sequence that define a polygon. This is<br>
> >>> taken from a legal document defining a piece of land. So far I have<br>
> >>> been able to import this into Qgis as points. How do I import it as a<br>
> >>> polygon (or convert the points to a polygon? I have tried to use<br>
> >>> GRASS, importing it as an ASCII file, but I guess I never got the<br>
> >>> ASCII polygon format down.<br>
> >>><br>
> >>> I'm sure there must be an asy way. Help!<br>
> >>><br>
> >>> mir<br>
> >>><br>
> >>> --<br>
> >>> _________________<br>
> >>> Mir RodrÃguez Lombardo<br>
> >>> Fundación Almanaque Azul<br>
> >>> Calle 4a San Felipe, antigua Santa Familia<br>
> >>> Ciudad de Panamá<br>
> >>> tel +507 836 6452<br>
> >>> cel 6644 9214<br>
> >>> _______________________________________________<br>
> >>> Qgis-user mailing list<br>
> >>> <a href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a><br>
> >>> <a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
> >>><br>
> >> _______________________________________________<br>
> >> Qgis-user mailing list<br>
> >> <a href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a><br>
> >> <a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
> ><br>
> ><br>
> > _______________________________________________<br>
> > Qgis-user mailing list<br>
> > <a href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a><br>
> > <a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
><br>
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End of Qgis-user Digest, Vol 51, Issue 19<br>
*****************************************<br>
</blockquote></div><br><br clear="all"><br>-- <br>L.Iyappan M.Tech Remote Sensing<br>CEO & Founder of Magendhiran Consultancy Services<br>5,3rd Street, Gandhi Nagar, Kanchipuram,<br>Near Chennai, Tamil Nadu, India<br>
Mobile: +91-9047134181<br>Mail: <a href="mailto:iyappan.l@mcsmapping.com">iyappan.l@mcsmapping.com</a><br>web: <a href="http://www.mcsmapping.com">www.mcsmapping.com</a><br><br>