Re: [Qgis-user] Import lines from cvs

[Nicolas Cadieux]

Well, 
Updating geometries from columns Try doing that with MapInfo 
Cool tips! 
:) 
Nicolas Cadieux M.Sc. 
On Jan 6, 2016 20:58, "Nathan Woodrow [via OSGeo.org]  " 
 wrote: 

Or use excel to make a WKT column and import that. 
Nathan 
On Thu, 7 Jan 2016 11:48 am Nyall Dawson < [hidden email] > wrote: 
On 7 January 2016 at 07:08, Joris Hintjens < 
[hidden email] > wrote: 
> Hello, 
> I’m lost. 
> I have a list of movements. A table with (among others) a column “FROM”  
and a column “TO” (both containing coordinates) 
> 
> How can I import this in QGIS so that I have a bunch of lines going from 
FROM to TO? 
> 

This is relatively straightforward in QGIS master: 

- import your CSV file 
- right click the CSV layer, and choose "Save as" 
- change format to "ESRI Shapefile". Choose the correct CRS for your 
coordinates. 
- expand out the "Geometry" group and change "Geometry type" 
from 
"Automatic" to "LineString" 
- click OK, the new LineString shapefile (with all null geometries) 
will be added to the project 
- now, you need to create the geometries. This is done through the 
field calculator. 
- tick "update existing field" 
- change the field to "" 
- enter the expression: 
'make_line(make_point("x1","y1"),make_point("x2","y2"))'
 (but replace 
x1, y1, ... with the correct columns names from your original CSV 
file) 
- click OK. Done! 

Nyall 


> thanks for your comments 
> 
> Joris 
> 
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Re: [Qgis-user] Import lines from cvs

[Nathan Woodrow]

Or use excel to make a WKT column and import that.

Nathan

On Thu, 7 Jan 2016 11:48 am Nyall Dawson  wrote:

> On 7 January 2016 at 07:08, Joris Hintjens  wrote:
> > Hello,
> > I’m lost.
> > I have a list of movements. A table with (among others) a column “FROM”
> and a column “TO” (both containing coordinates)
> >
> > How can I import this in QGIS so that I have a bunch of lines going from
> FROM to TO?
> >
>
> This is relatively straightforward in QGIS master:
>
> - import your CSV file
> - right click the CSV layer, and choose "Save as"
> - change format to "ESRI Shapefile". Choose the correct CRS for your
> coordinates.
> - expand out the "Geometry" group and change "Geometry type" from
> "Automatic" to "LineString"
> - click OK, the new LineString shapefile (with all null geometries)
> will be added to the project
> - now, you need to create the geometries. This is done through the
> field calculator.
> - tick "update existing field"
> - change the field to ""
> - enter the expression:
> 'make_line(make_point("x1","y1"),make_point("x2","y2"))' (but replace
> x1, y1, ... with the correct columns names from your original CSV
> file)
> - click OK. Done!
>
> Nyall
>
>
> > thanks for your comments
> >
> > Joris
> >
> > ___
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> > Qgis-user@lists.osgeo.org
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> > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
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Re: [Qgis-user] Import lines from cvs

[Nyall Dawson]

On 7 January 2016 at 07:08, Joris Hintjens  wrote:
> Hello,
> I’m lost.
> I have a list of movements. A table with (among others) a column “FROM”  and 
> a column “TO” (both containing coordinates)
>
> How can I import this in QGIS so that I have a bunch of lines going from FROM 
> to TO?
>

This is relatively straightforward in QGIS master:

- import your CSV file
- right click the CSV layer, and choose "Save as"
- change format to "ESRI Shapefile". Choose the correct CRS for your
coordinates.
- expand out the "Geometry" group and change "Geometry type" from
"Automatic" to "LineString"
- click OK, the new LineString shapefile (with all null geometries)
will be added to the project
- now, you need to create the geometries. This is done through the
field calculator.
- tick "update existing field"
- change the field to ""
- enter the expression:
'make_line(make_point("x1","y1"),make_point("x2","y2"))' (but replace
x1, y1, ... with the correct columns names from your original CSV
file)
- click OK. Done!

Nyall


> thanks for your comments
>
> Joris
>
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Re: [Qgis-user] Import lines from cvs

[Nicolas Cadieux]

Hi, 
I think you will need to use the python console to do the job.  I have no 
direct  experience but if you look in the pyqgis developer cookbook and 
look for "Geometry Construction" you will find a reference to "gLine". 
With that, you can create a line with two or more points. 
Before doing that, look at the plugin (activate experimental plugin and Search 
for " line".  There seems to be po plugins that can do it like 
PointConnector or Points2One... 
Good luck. 
Nicolas Cadieux M.Sc. 
Les Entreprises Archéotec inc.  
8548, rue Saint-Denis Montréal H2P 2H2 
Téléphone: 514.381.5112  Fax: 514.381.4995 
www.archeotec.ca 
On Jan 6, 2016 2:58 PM, "Joris Hintjens [via OSGeo.org]" 
 wrote: 

Hello,
I’m lost.
I have a list of movements. A table with (among others) a column “FROM”  and a 
column “TO” (both containing coordinates)
How can I import this in QGIS so that I have a bunch of lines going from FROM 
to TO?
thanks for your comments
Joris
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[Qgis-user] Import lines from cvs

[Joris Hintjens]

Hello,
I’m lost.
I have a list of movements. A table with (among others) a column “FROM”  and a 
column “TO” (both containing coordinates)
DON’T WORRY ABOUT SPLITTING THE COLUMNS IN 2 SETS OF X AND Y , THAT’S NOT MY 
PROBLEM


How can I import this in QGIS so that I have a bunch of lines going from FROM 
to TO?

thanks for your comments

Joris

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[Qgis-user] Import lines from cvs

[Joris Hintjens]

Hello,
I’m lost.
I have a list of movements. A table with (among others) a column “FROM”  and a 
column “TO” (both containing coordinates)

How can I import this in QGIS so that I have a bunch of lines going from FROM 
to TO?

thanks for your comments

Joris

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Re: [Qgis-user] SAGA Add Grid Value to point

[Nicolas Cadieux]

Hi, 
I do not use Saga for that type of operation as QGIS has an excellent point 
sampling plugin that you can install.  
However, I imagine that you are using Saga via the QGIS processing 
plugin?  If so, I recommend you try the tool directly in Saga.  This 
way, you can have a better idea of the error you are getting and do the trouble 
shooting there. 
It's a good idea to make sure that all layers are in the same CRS before you 
launch this type of tools especially in "mission critical" situation.  I 
can check more on my end if you are still stuck. 
Nicolas Cadieux M.Sc. 
Les Entreprises Archéotec inc.  
8548, rue Saint-Denis Montréal H2P 2H2 
Téléphone: 514.381.5112  Fax: 514.381.4995 
www.archeotec.ca 
On Jan 6, 2016 06:53, "Lene Fischer [via OSGeo.org]" 
 wrote: 









Hi, 
I´m writing this mail on behalf of a student, who encountered a problem today 
during lecture. 
Hope to get help with this issue. 
Regards 
  
Lene Fischer 
  
Hello 
  

1. 
I´m trying to use “SAGA - Add grid values to points” in QGIS 2.12.0 Lyon 
/Windows 64 bit 

2. 
I have opened two raster layers with DSM and DTM 

3. 
I have made a new scratch layer where I have digitized 10 points 

4. 
In Grid>Multiple selection I choose the 2 layers


5. 
When I press “run” I´m told the input layers do not have the same grid extent 
and stop calculating. 

6. 
This problem comes from the two layers that does not have the exact same extend 
Can any help with this problem 
  
Regards 
Søren Børsting 
  
  



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[Qgis-user] SAGA Add Grid Value to point

[Lene Fischer]

Hi,
I´m writing this mail on behalf of a student, who encountered a problem today 
during lecture.
Hope to get help with this issue.
Regards

Lene Fischer

Hello


1.  I´m trying to use “SAGA - Add grid values to points” in QGIS 2.12.0 
Lyon /Windows 64 bit

2.  I have opened two raster layers with DSM and DTM

3.  I have made a new scratch layer where I have digitized 10 points

4.  In Grid>Multiple selection I choose the 2 layers

5.  When I press “run” I´m told the input layers do not have the same grid 
extent and stop calculating.

6.  This problem comes from the two layers that does not have the exact 
same extend
Can any help with this problem

Regards
Søren Børsting


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Re: [Qgis-user] GeoServer online

[Till Adams]

Hi Sebastian,

perhaps the question is better on the GeoServer user list.

For me it's not clear at all, what exactly you are looking for. If you 
successfully installed GeoServer on your WebServer (see here: 
http://docs.geoserver.org/stable/en/user/installation/) you have to call 
your WebServer's URL or IP address, normally GeoServer appears here:


http://<:8080>/geoserver/

Whether you need the ":8080" depends on where and how you installed your 
Java Application Server (Jetty, Tomcat or whatever...)


Till


Am 04.01.2016 12:33, schrieb "Sebastian Teßmer":

Hello everybody,

and a Happy New Year!

I have a question for GeoServer. I use it as a Web server for my geodata.
With "localhost" everything works great, but does anyone know how I
the data online can call? I need an explanation on how I publish a Web 
server on the web?


Thank you for your help!
Sebastian


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Re: [Qgis-user] GeoServer online

[Steven De Vriendt]

What Alex says.
Recently I had to do the same and host my data online using PostGIS &
Geoserver.
Depending on your needs there are a lot of options to do so.
As my requirements were not that high, I have chosen to host a server on a
VPS-cloud based service.
The most tricky part is actually to set up and securing your webhosting
environment.
This requires some knowledge of web/hosting beyond the field of Geoserver
and PostGIS.
As Alex mentions there are a lot of great step by step guides which will
help you to setup your web/geoserver host.
I for instance have followed this guide which was of great help:
http://www.negengec.com/2014/09/run-geoserver-ubuntu-tomcat7/




2016-01-04 17:56 GMT+01:00 Alex Mandel :

> On 01/04/2016 03:33 AM, "Sebastian Teßmer" wrote:
> > Hello everybody,
> >
> > and a Happy New Year!
> >
> > I have a question for GeoServer. I use it as a Web server for my geodata.
> > With "localhost" everything works great, but does anyone know how I
> > the data online can call? I need an explanation on how I publish a Web
> server on
> > the web?
> >
> > Thank you for your help!
> > Sebastian
> >
> >
>
> 1. If this is about Geoserver, please ask on the Geoserver mailing list
> http://geoserver.org/comm/
> 2. You need a Domain/Domain Name Server/Service (DNS) so that a url
> points to your computer from the web (complicated if you don't have a
> static ip for your computer, or your internet provide prevents hosting
> on personal accounts). This is a general topic with lots of examples on
> the internet to learn from. The basics are you pay for a domain, and
> tell it the ip of your machine.
>
> Enjoy,
> Alex
>
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