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  1. Lucene - Core
  2. LUCENE-9150

Restore support for dynamic PlanetModel in Geo3D

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
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    • Lucene Fields:
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      Description

      LUCENE-7072 removed dynamic planet model support in Geo3D. This was logical at the time (given the state of Lucene and spatial projections and coordinate reference systems). Since then, however, there have been a lot of new developments within the OGC community around Coordinate Reference Systems, Dynamic Coordinate Reference Systems, and Updated ISO Standards.

      It would be useful for Geo3D (and eventually LatLon*) to support different geographic datums to make lucene a viable option for indexing/searching in different spatial reference systems (e.g., more accurately computing query shape relations to BKD's internal nodes using datum consistent with the spatial projection). This would also provide an alternative to other limitations of the LatLon*/XY* implementation (e.g., pole/dateline crossing, quantization of small polygons).

      I'd like to propose keeping the current WGS84 static datum as the default for Geo3D but adding back the constructors to accept custom planet models. Perhaps this could be listed as an "expert" API feature?

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              • Assignee:
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                Reporter:
                nknize Nick Knize
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