Loading WKT polygons into QGIS

Question

I have downloaded a file showing the status of the National Broadband Network. The CSV file contains a field "Development Shape", which contains

"POLYGON ((153.101112401 -27.797998206, 153.097860177 -27.807122487, 153.097715464 -27.8163131, 153.100598081 -27.821068293, 153.103789404 -27.825046709, 153.106078824 -27.830224804, 153.108248251 -27.836106915, 153.110692137 -27.837863953, 153.116288014 -27.840655525, 153.119923205 -27.844817942, 153.122317372 -27.853523235, 153.127785181 -27.851776938, 153.131234286 -27.851150309, 153.135634115 -27.849740655, 153.138235543 -27.848667877, 153.141702556 -27.847075291, 153.152204703 -27.844959644, 153.15548911 -27.843380913, 153.158613317 -27.841545667, 153.161936609 -27.84058971, 153.156360679 -27.838491612, 153.15709719 -27.834509947, 153.150360063 -27.83270459, 153.151126372 -27.827536316, 153.151689864 -27.822563851, 153.14849171 -27.820801492, 153.148374771 -27.817968784, 153.139018666 -27.81580407, 153.139814105 -27.808556369, 153.126485712 -27.805759965, 153.124678962 -27.803584281, 153.120764096 -27.80295276, 153.121396647 -27.797353389, 153.100468927 -27.793620173, 153.09982846 -27.793327332, 153.101112401 -27.797998206))".

This is just for one entry. Is it possible to map this in QGIS?

score 19 · Answer 1 · answered Jul 19 '16 at 23:55

19

Go to Layer -> Add Layer -> Add Delimited Text Layer. You should be able to find the csv file you have, give it a layer name, and choose file format as CSV.

In the Geometry Definition, you will have to use Well known Text (WKT) by ticking that box. Set the Geometry field to the column you want, and you might want to set the Geometry type as Polygon.

See below:

For speed, you might want to tick the 'Use spatial index' box as well. Good luck :)

answered Jul 19 '16 at 23:55

weiji14

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can you do this with python? – user32882 Sep 12 '18 at 13:01
This just pulls my data in as a table and the data doesn't appear on the map? ... – Sam Dec 17 '19 at 03:04

score 8 · Answer 2 · answered Dec 17 '19 at 07:16

8

If you add a header line with "wkt;" you can drag the file directly into QGIS canvas:

wkt;
POLYGON((...))

Instead of the semicolon you can also use a colon (,) or a tab.

answered Dec 17 '19 at 07:16

christoph

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after that, you should set CRS via right click on new layer -> properties -> settings – khaverim Jul 06 '22 at 13:48
@khaverim that‘s totally correct. Or you change your project CRS before importing the file, if the CRS of the file is different. – christoph Jul 06 '22 at 15:46

Loading WKT polygons into QGIS

2 Answers2

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