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Topology

Second step of boundary cleaning. This step removes gaps and overlaps between neighboring units in the schema-mapped layer.

  • Tutorial

    Learning-oriented. Detect gaps and overlaps in one layer, review them, then fix them.

    Tutorial

  • How-to

    Task-oriented. List the gaps, check which are water bodies, then clean with the matching gap setting.

    How-to

  • Reference

    Information-oriented. What topo-detect and topo-clean do, with their options and the issues file they write.

    Reference

  • Explanation

    Understanding-oriented. How cleaning reuses the detection stage, and how each fix is reported.

    Explanation