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Maps and Lists in feature properties #117

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Maps and Lists in feature properties #117

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264918d
Added maps and lists to properties.
flippmoke Jul 19, 2018
69780d1
Add comment about how to encode null values
e-n-f Jul 19, 2018
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12 changes: 10 additions & 2 deletions 3.0/vector_tile.proto
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,8 @@ message Tile {
// Variant type encoding
// The use of values is described in section 4.1 of the specification
message Value {
// Exactly one of these values must be present in a valid message
// No more than one of these values may be present in a valid message.
// If no value is written, the message is null.
optional string string_value = 1;
optional float float_value = 2;
optional double double_value = 3;
Expand All @@ -24,7 +25,14 @@ message Tile {
optional sint64 sint_value = 6;
optional bool bool_value = 7;

extensions 8 to max;
// Even numbered elements refer to the nth key in the layer's keys list
// Odd numbered elements refer to the nth value in the layer's values list
repeated uint32 hash_value = 8 [ packed = true ];

// Each element refers to the nth value in the layer's values list
repeated uint32 list_value = 9 [ packed = true ];

extensions 10 to max;
}

// Features are described in section 4.2 of the specification
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