[postgis-tickets] [PostGIS] #3712: Address MVT issues reported by specification author

[PostGIS]

#3712: Address MVT issues reported by specification author
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  Reporter:  strk     |      Owner:  Björn Harrtell
      Type:  defect   |     Status:  new
  Priority:  blocker  |  Milestone:  PostGIS 2.4.0
 Component:  postgis  |    Version:  trunk
Resolution:           |   Keywords:
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Comment (by Björn Harrtell):

 Agreed that the goal should be to follow the v2 spec.

 I think there is a pretty non-trivial solution if I would just use GEOS
 and the tools there to simplify and verify topology/validity. The drawback
 would be that it would probably make the routine much slower.

 So I would rather not have to go though GEOS and use a quantization
 algorithm similar to the one used by OpenLayers (1) to keep topology
 intact. To avoid having to calculate validity, which AFAIK is a hard
 problem, I want to assume input is valid and document that as a
 requirement. Would this be acceptable?

 1) https://boundlessgeo.com/2014/03/openlayers-vector-rendering

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3712#comment:3>
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