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I'm a QGIS2.0 user. Topology checkers is a very valuable for me as a data creator. I use this plugin for checking data quality.

But, this plugin finds too much errors include very, very tiny errors. I have tried to set a "tolerance" for the rule but it does not work well.

Please tell me how to use this function.

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In QGIS 2.0, the Topology Checker tolerance functionality is not implemented for any of the available topological rules. See the source code at Github, in particular topolTest.cpp. It was part of the wish list in the original merge request. I submitted a bug report (Bug #9621) to the development team asking for the tolerance column to be removed.

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  • Note: still have the tolerance column in 2017, QGIS 2.18.6. Came here to discover how to use tolerance in Topology Checker and I found your answer.
    – Kleber Barcelar
    Commented Apr 12, 2017 at 13:52

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