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I would like to know if there is an option in QGIS labeling engine which would remove all the duplicate labels.

My polygon layer contains a few features with same name. So when labeled it becomes a cluster which does not look good.

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i play a bit with mymaps application from google.. seems it does not work on mymaps (though it works on acrGIS or QGIS ). The label still mentioned multiple times on some features (polygons) <br> NOrth Sumatera map – user45653 Jan 28 '15 at 11:37
up vote 3 down vote accepted

Check also if you are using the old labelling engine (the one still available in the vector properties) or if you are using the new labelling engine, available through a button in the toolbar (the icon has the letters "abc" underlined with a blue line). The new engine is much better than the old and there is more control on how/what labels draw.

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Thanks! I was looking exactly for this! – user8460 Jun 27 '12 at 5:36

For polygons, there is an option called "label every part of multi-part features" in advanced labeling settings. Consequently, it is possible to label only one part of a multi-part feature.

If I understand you correctly, your dataset contains multiple polygon features with same labels but the are NOT part of one multi-part feature.

Therefore, you'll have to merge these single-part features into multi-part features based on the label attribute: Vector - Geometry tools - Singleparts to multipart.

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