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API changes between v3.0 and v3.1

lightmare edited this page Aug 12, 2019 · 10 revisions

Compiler must now support c++14 to build Mapnik 3.1.x

Removed

TODO

Changed

  • PostGIS: Variables in postgis SQL queries must now additionally be wrapped in ! (refs #3618):
-- Mapnik 3.0
SELECT ... WHERE trait = @variable

-- Mapnik 3.1
SELECT ... WHERE trait = !@variable!
  • PostGIS & PGraster: The table/geometry_table/raster_table parameter in XML style must be quoted if it would need quoting in SQL query (for example if it's a reserved word or multiple words; refs #3618):
<!-- Mapnik 3.0 -->
<Parameter name="geometry_table">rolling stones</Parameter>

<!-- Mapnik 3.1 -->
<Parameter name="geometry_table">"rolling stones"</Parameter>
  • load_map() with strict=true throws an exception on duplicate style names (refs #3770, #3917).

Added

  • PGraster: Variable interpolation just like PostGIS plugin (refs #3618).
  • PostGIS & PGraster: Datasource parameter application_name (refs #3984).
  • Geobuf input plugin (refs 3715).
  • Layers can be nested, comp-op and opacity on Layer level are supported (refs 3474).
  • extend option of TextSymbolizer (refs 3512).
  • Text simple placement C for no displacement (refs #3596).
  • angled-point placement of MarkersSymbolizer (refs 3782).

TODO

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