47

I've got a layer in QGIS that is comprised of points. Its attribute table doesn't have (show) the corresponding x and y coordinates for each point. Is there a way for me to extract a list of coordinates for those points? (ideally into a CSV, but not required)

Also, for the exported list of coordinates (say, in a CSV file), how do I include the existing attribute table with it?

For your information, I am running QGIS on Mac OS X 10.6.7.

44

Depending on your version, you should be able to right-click on the layer you want to export, and select Save As... Choose Comma Separated Value from the dropdown list of the dialog box that appears. Then, in the Layers part of the OGR creation options, type GEOMETRY=AS_XY or GEOMETRY=AS_XYZ depending on the dimensionality of your source data.

QGIS Save vector layer as... dialog

  • That's great and it works! One more thing: Can I also export columns I already have in the original layer's into the CSV, along with the X, Y coordinated? Thanks. – hpy Apr 22 '11 at 16:34
  • 2
    Cool, glad it works! Make sure you have the "Skip attribute creation" checkbox unchecked. I'm not a fan of negative checkboxes like that, it always makes me think twice about what state I need it in. – MerseyViking Apr 22 '11 at 20:28
  • Very useful tips! – Heinz Jun 11 '13 at 9:27
  • For anyone else on Windows 10 (QGIS 4.3.1) confused about where this gets saved, check your "C:\OSGeo4W64\bin" folder. – Wassadamo Jan 11 at 21:03
20

It is simple in the attribute calculator you may use $x and $y to calculate your coordinates into a new attribute.

8

You may like this for the added detail which is gathered

For QGIS 1.7 on Win7 I open the attribute table for the layer, use the buttons to; invert selection to select all rows, copy to clipboard

and paste into Excel. The first column contains Well Known Text information which maybe more useful to you.

Edit

I now use the plugin mmqgis to export geometry to csv, it is more desired by CAD users at the other end...

  • BWill, should we merge your other account @Willy? That would help your reputation and simplify your interactions here. – whuber Apr 13 '12 at 14:42
  • Restored original edit. – Kirk Kuykendall Apr 16 '12 at 14:33
  • When copying from the attribute table and pasting into Excel, sometimes a feature will occupy multiple rows, and this results in overwriting any data in the row below. – csk Feb 26 '18 at 19:30
3

Yes, in fact I asked a similar question a few weeks ago. It's only true for QGIS 1.7 though (which I'm running on OSX and it seems quite stable).

2

for your question if you have postgressql and built-in postgis you can do this adding new column which is named coord_x and coord_y. and sql to update this column is:

UPDATE table_name
      SET coord_x = X(the_geom),coord_y = Y(the_geom);

that is it :)

2

Virtual layers enables you to do exactly that. It is an icon on the Layers Toolbar or you can go Layer->Add layer->Add/Edit Virtual Layer...` Then you will face a window like the one below:

enter image description here

In the Query you can select geometry properties like x and y cooridnates and attributes values from the Attribute Table, like the id in the example.

Once you have a table with the desired fields, you can use save asand select csv as a format.

enter image description here

The underlying engine uses SQLite and Spatialite to operate, so the documentation for the queries could be found here: https://www.gaia-gis.it/fossil/libspatialite/wiki?name=misc-docs

-1

You could also use the MMQGIS plugin to export the geometry with the rest of the layer attributes to CSV file.

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