Planet boundaries #847

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artemp opened this Issue Oct 11, 2011 · 0 comments

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@artemp
Mapnik member

On planet boundaries (-180th and 180th meridian) mapnik usually gives some artifacts:

http://latlon.org/~komzpa/screenshots/mapnik_planet_boundaries.jpeg

Artifacts are:

  • parts of polygon lines go through 180th meridian;
  • labels are cut off on different sides of it.

To cope with it, wold be nice to have options to:

  • make label collisions think that there's nothing outside the world and it's better not to place labels that will go outside of it;

  • don't draw lines that go straight on 180th meridian.

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