[postgis-tickets] [PostGIS] #4400: Isolines generating function

[PostGIS]

#4400: Isolines generating function
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 Reporter:  komzpa       |      Owner:  pramsey
     Type:  enhancement  |     Status:  new
 Priority:  medium       |  Milestone:  PostGIS 3.0.0
Component:  postgis      |    Version:  trunk
 Keywords:               |
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 A function that takes a TIN and generates isolines.

 ST_Isolines(TIN, z_interval)

 Outputs a set of isolines per different elevation as multilinestrings,
 clipping triangles at given elevations.

 (implementation hint, per discussion with pramsey, if a triangle is
 horizontal we don't need to output a line segment)

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4400>
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