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I couldn't find any proper example of how to import a .csv with WKT coordinates (Polygon) in PyQGIS.

Here are more details on my .csv. I am working with polygons. The delimiter is a semi colum, and the name of the variable that contains the relevant coordinates is WKT . Thus I wrote :

1) uri = "data/idf.csv?delimiter=%s&crs=ESPG:2154&wktField=%s" % (";", "WKT")

2) idf_stats_csv = QgsVectorLayer(uri,"idf","delimitedtext")

But this does not work. Do you have any more advice?

  • Perhaps this link might help. – Joseph Apr 9 '15 at 11:33
  • Hi Flo, perhaps you can edit your question to include the information from your comment please? That way, it's more readable to those who are in a position to help you. At the moment, this is beyond me =) – Joseph Apr 9 '15 at 11:44
  • Thx for your advice Joseph – Flo Apr 9 '15 at 11:53
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    Apparently, you're missing the file:/// prefix, try something like: uri = "file:///path/to/your/data/idf.csv?delimiter=%s&crs=epsg:2154&wktField=%s" % (";", "WKT") – Germán Carrillo Apr 9 '15 at 12:21
  • I also tried it before but this does not seem to be the problem. – Flo Apr 9 '15 at 12:33
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uri ='file:///C://Users//Documents//Filepath//WKT_file.csv?delimiter=%s&crs=epsg:2154&wktField=%s' % (";", "WKT")
lyr = QgsVectorLayer(uri, 'Name_of_new_temp_output_layer','delimitedtext')
QgsMapLayerRegistry.instance().addMapLayer(lyr)

This should work. It worked for me.

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