Open-Harbor/osrm-backend
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valid tiles are >= z12

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This commit is contained in:
karenzshea 2016-10-12 09:54:09 -04:00
parent 32dcce88f7
commit ee012ae2da
2 changed files with 3 additions and 3 deletions
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3
include/engine/api/tile_parameters.hpp
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@ -64,7 +64,8 @@ struct TileParameters final
// https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#X_and_Y // https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#X_and_Y
const auto valid_x = x <= static_cast<unsigned>(std::pow(2., z)) - 1; const auto valid_x = x <= static_cast<unsigned>(std::pow(2., z)) - 1;
const auto valid_y = y <= static_cast<unsigned>(std::pow(2., z)) - 1; const auto valid_y = y <= static_cast<unsigned>(std::pow(2., z)) - 1;
const auto valid_z = z < 20; // zoom limits are due to slippy map and server performance limits
const auto valid_z = z < 20 && z >= 12;
return valid_x && valid_y && valid_z; return valid_x && valid_y && valid_z;
}; };

3
src/engine/plugins/tile.cpp
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@ -372,8 +372,7 @@ Status TilePlugin::HandleRequest(const std::shared_ptr<datafacade::BaseDataFacad
}; };
// If we're zooming into 16 or higher, include turn data. Why? Because turns make the map // If we're zooming into 16 or higher, include turn data. Why? Because turns make the map
// really // really cramped, so we don't bother including the data for tiles that span a large area.
// cramped, so we don't bother including the data for tiles that span a large area.
if (parameters.z >= MIN_ZOOM_FOR_TURNS) if (parameters.z >= MIN_ZOOM_FOR_TURNS)
{ {
// Struct to hold info on all the EdgeBasedNodes that are visible in our tile // Struct to hold info on all the EdgeBasedNodes that are visible in our tile