kopia lustrzana https://github.com/onthegomap/planetiler
80 wiersze
2.2 KiB
Protocol Buffer
80 wiersze
2.2 KiB
Protocol Buffer
syntax = "proto2";
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package vector_tile;
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option optimize_for = SPEED;
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message Tile {
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// GeomType is described in section 4.3.4 of the specification
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enum GeomType {
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UNKNOWN = 0;
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POINT = 1;
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LINESTRING = 2;
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POLYGON = 3;
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}
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// Variant type encoding
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// The use of values is described in section 4.1 of the specification
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message Value {
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// Exactly one of these values must be present in a valid message
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optional string string_value = 1;
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optional float float_value = 2;
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optional double double_value = 3;
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optional int64 int_value = 4;
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optional uint64 uint_value = 5;
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optional sint64 sint_value = 6;
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optional bool bool_value = 7;
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extensions 8 to max;
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}
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// Features are described in section 4.2 of the specification
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message Feature {
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optional uint64 id = 1 [default = 0];
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// Tags of this feature are encoded as repeated pairs of
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// integers.
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// A detailed description of tags is located in sections
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// 4.2 and 4.4 of the specification
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repeated uint32 tags = 2 [packed = true];
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// The type of geometry stored in this feature.
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optional GeomType type = 3 [default = UNKNOWN];
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// Contains a stream of commands and parameters (vertices).
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// A detailed description on geometry encoding is located in
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// section 4.3 of the specification.
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repeated uint32 geometry = 4 [packed = true];
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}
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// Layers are described in section 4.1 of the specification
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message Layer {
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// Any compliant implementation must first read the version
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// number encoded in this message and choose the correct
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// implementation for this version number before proceeding to
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// decode other parts of this message.
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required uint32 version = 15 [default = 1];
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required string name = 1;
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// The actual features in this tile.
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repeated Feature features = 2;
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// Dictionary encoding for keys
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repeated string keys = 3;
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// Dictionary encoding for values
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repeated Value values = 4;
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// Although this is an "optional" field it is required by the specification.
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// See https://github.com/mapbox/vector-tile-spec/issues/47
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optional uint32 extent = 5 [default = 4096];
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extensions 16 to max;
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}
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repeated Layer layers = 3;
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extensions 16 to 8191;
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}
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