I am trying to convert wkt to geojson wiht OpenLayers. I wrote my code based on this question (geojson to wkt).

That's what I have so far, but it is not working. Any ideas?

var = 'GEOMETRYCOLLECTION(MULTIPOLYGON(((-0.12072212703174 51.51899157882951,-0.128597092699465 51.51191439062526,-0.129004788469729 51.51260880491084,-0.129584145616946 51.51374388239237,-0.130120587419924 51.51494569831,-0.130614113878664 51.51653471734371,-0.125507187914309 51.51718900318654,-0.121001076769289 51.519178508517115,-0.12072212703174 51.51899157882951))))';
var geojson_options = {};
var wkt_format = new OpenLayers.Format.WKT();
var testFeature = wkt_format.read(val);
var geojson_format = new OpenLayers.Format.GeoJSON(wkt_options);
var out = geojson.write(testFeature);


Try it in action: http://jsfiddle.net/Pp5FF/


The OpenLayers part itself it correct, but your snippet is not valid JavaScript. The problems are:

  • the fiddle doesn't import OpenLayers (use "External Resources" for that)
  • the WKT string variable is missing name
  • wkt_options not defined
  • geojson_format vs geojson

Hint: open your browser's Developer Console to see the errors reported one by one. And here's your fixed fiddle

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.