[Qgis-user] Import lines from cvs

[Nicolas Cadieux]

Hi, 
Are you sure you have no features or are they just it the wrong place?  Right Click on the layer and select zoom to layer extent.  Check your CRS and make sure you have CRS on the fly activated.  Make sure your option don't automatically assign the project or default CRS  layer as your layer does not have one yet. 
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 7, 2016 16:18, "Joris Hintjens [via OSGeo.org]	" <ml-node+s1560n5244197h68 at n6.nabble.com> wrote: 

	Thanks Nathan, short but good proposition.  You encouraged me to finally have a look at that WKT button in the “import cvs” menu.  But… No succes. Tried DMS and D,ddd format, but nothing happens. The layer imports, arrears in the layer list, property table of that layer looks fine, but no features appear on the map. IF you have nothing more interesting to do,  and want to give it a try:  Here is a sample of my layer: see anything wrong? Let me know. greetings, Joris 
	
	
	
	



Op 7 jan. 2016, om 03:08 heeft Nathan Woodrow < [hidden email] > het volgende geschreven: 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: <blockquote style="border-left:2px solid #cccccc;padding:0 1em" style="margin:0 0 0 0.8ex;border-left:1px #ccc solid;padding-left:1ex">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 "<geometry>" 
- 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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