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@@ -1433,6 +1433,15 @@ TINs are simply created as 2D/3D vector polygons consisting of
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\section vlibOgrIface OGR interface
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+\subsection vLibPseudoTopo Pseudo-topology
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+
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+Reduced topology: each boundary is attached to one area only,
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+i.e. smoothing, simplification, removing small areas etc. will not
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+work properly for adjacent areas or areas within areas.
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+
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+Full topology is only available for native GRASS vectors or can only
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+be built after all polygons are cleaned as done by <tt>v.in.ogr</tt>.
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+
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\subsection vlibFrmtFileFormat Frmt file format specification
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Frmt is a plain text file which contains basic information about
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