PostGIS

Polygonize

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10.8. Topology Processing

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Name

Polygonize — Finds and registers all faces defined by topology edges.

Synopsis

text +`*`+Polygonize*(`varchar `toponame`)`;

Description

Registers all faces that can be built out a topology edge primitives.

The target topology is assumed to contain no self-intersecting edges.

Note

Already known faces are recognized, so it is safe to call Polygonize multiple times on the same topology.

Note

This function does not use nor set the next_left_edge and next_right_edge fields of the edge table.

Availability: 2.0.0

See Also

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GetNodeEdges

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