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0001 /*
0002     SPDX-FileCopyrightText: 2010 Scott A. Crosby. <scott@sacrosby.com>
0003 
0004     SPDX-License-Identifier: MIT
0005 */
0006 
0007 syntax = "proto2";
0008 option optimize_for = LITE_RUNTIME;
0009 option java_package = "crosby.binary";
0010 package OSMPBF;
0011 
0012 /* OSM Binary file format
0013 
0014 This is the master schema file of the OSM binary file format. This
0015 file is designed to support limited random-access and future
0016 extendability.
0017 
0018 A binary OSM file consists of a sequence of FileBlocks (please see
0019 fileformat.proto). The first fileblock contains a serialized instance
0020 of HeaderBlock, followed by a sequence of PrimitiveBlock blocks that
0021 contain the primitives.
0022 
0023 Each primitiveblock is designed to be independently parsable. It
0024 contains a string table storing all strings in that block (keys and
0025 values in tags, roles in relations, usernames, etc.) as well as
0026 metadata containing the precision of coordinates or timestamps in that
0027 block.
0028 
0029 A primitiveblock contains a sequence of primitive groups, each
0030 containing primitives of the same type (nodes, densenodes, ways,
0031 relations). Coordinates are stored in signed 64-bit integers. Lat&lon
0032 are measured in units <granularity> nanodegrees. The default of
0033 granularity of 100 nanodegrees corresponds to about 1cm on the ground,
0034 and a full lat or lon fits into 32 bits.
0035 
0036 Converting an integer to a lattitude or longitude uses the formula:
0037 $OUT = IN * granularity / 10**9$. Many encoding schemes use delta
0038 coding when representing nodes and relations.
0039 
0040 */
0041 
0042 //////////////////////////////////////////////////////////////////////////
0043 //////////////////////////////////////////////////////////////////////////
0044 
0045 /* Contains the file header. */
0046 
0047 message HeaderBlock {
0048   optional HeaderBBox bbox = 1;
0049   /* Additional tags to aid in parsing this dataset */
0050   repeated string required_features = 4;
0051   repeated string optional_features = 5;
0052 
0053   optional string writingprogram = 16;
0054   optional string source = 17; // From the bbox field.
0055 
0056   /* Tags that allow continuing an Osmosis replication */
0057 
0058   // replication timestamp, expressed in seconds since the epoch,
0059   // otherwise the same value as in the "timestamp=..." field
0060   // in the state.txt file used by Osmosis
0061   optional int64 osmosis_replication_timestamp = 32;
0062 
0063   // replication sequence number (sequenceNumber in state.txt)
0064   optional int64 osmosis_replication_sequence_number = 33;
0065 
0066   // replication base URL (from Osmosis' configuration.txt file)
0067   optional string osmosis_replication_base_url = 34;
0068 }
0069 
0070 
0071 /** The bounding box field in the OSM header. BBOX, as used in the OSM
0072 header. Units are always in nanodegrees -- they do not obey
0073 granularity rules. */
0074 
0075 message HeaderBBox {
0076    required sint64 left = 1;
0077    required sint64 right = 2;
0078    required sint64 top = 3;
0079    required sint64 bottom = 4;
0080 }
0081 
0082 
0083 ///////////////////////////////////////////////////////////////////////
0084 ///////////////////////////////////////////////////////////////////////
0085 
0086 
0087 message PrimitiveBlock {
0088   required StringTable stringtable = 1;
0089   repeated PrimitiveGroup primitivegroup = 2;
0090 
0091   // Granularity, units of nanodegrees, used to store coordinates in this block
0092   optional int32 granularity = 17 [default=100];
0093   // Offset value between the output coordinates coordinates and the granularity grid in unites of nanodegrees.
0094   optional int64 lat_offset = 19 [default=0];
0095   optional int64 lon_offset = 20 [default=0];
0096 
0097 // Granularity of dates, normally represented in units of milliseconds since the 1970 epoch.
0098   optional int32 date_granularity = 18 [default=1000];
0099 
0100 
0101   // Proposed extension:
0102   //optional BBox bbox = XX;
0103 }
0104 
0105 // Group of OSMPrimitives. All primitives in a group must be the same type.
0106 message PrimitiveGroup {
0107   repeated Node     nodes = 1;
0108   optional DenseNodes dense = 2;
0109   repeated Way      ways = 3;
0110   repeated Relation relations = 4;
0111   repeated ChangeSet changesets = 5;
0112 }
0113 
0114 
0115 /** String table, contains the common strings in each block.
0116  Note that we reserve index '0' as a delimiter, so the entry at that
0117  index in the table is ALWAYS blank and unused.
0118  */
0119 message StringTable {
0120    repeated bytes s = 1;
0121 }
0122 
0123 /* Optional metadata that may be included into each primitive. */
0124 message Info {
0125    optional int32 version = 1 [default = -1];
0126    optional int64 timestamp = 2;
0127    optional int64 changeset = 3;
0128    optional int32 uid = 4;
0129    optional uint32 user_sid = 5; // String IDs
0130 
0131    // The visible flag is used to store history information. It indicates that
0132    // the current object version has been created by a delete operation on the
0133    // OSM API.
0134    // When a writer sets this flag, it MUST add a required_features tag with
0135    // value "HistoricalInformation" to the HeaderBlock.
0136    // If this flag is not available for some object it MUST be assumed to be
0137    // true if the file has the required_features tag "HistoricalInformation"
0138    // set.
0139    optional bool visible = 6;
0140 }
0141 
0142 /** Optional metadata that may be included into each primitive. Special dense format used in DenseNodes. */
0143 message DenseInfo {
0144    repeated int32 version = 1 [packed = true];
0145    repeated sint64 timestamp = 2 [packed = true]; // DELTA coded
0146    repeated sint64 changeset = 3 [packed = true]; // DELTA coded
0147    repeated sint32 uid = 4 [packed = true]; // DELTA coded
0148    repeated sint32 user_sid = 5 [packed = true]; // String IDs for usernames. DELTA coded
0149 
0150    // The visible flag is used to store history information. It indicates that
0151    // the current object version has been created by a delete operation on the
0152    // OSM API.
0153    // When a writer sets this flag, it MUST add a required_features tag with
0154    // value "HistoricalInformation" to the HeaderBlock.
0155    // If this flag is not available for some object it MUST be assumed to be
0156    // true if the file has the required_features tag "HistoricalInformation"
0157    // set.
0158    repeated bool visible = 6 [packed = true];
0159 }
0160 
0161 
0162 // THIS IS STUB DESIGN FOR CHANGESETS. NOT USED RIGHT NOW.
0163 // TODO:    REMOVE THIS?
0164 message ChangeSet {
0165    required int64 id = 1;
0166 //
0167 //   // Parallel arrays.
0168 //   repeated uint32 keys = 2 [packed = true]; // String IDs.
0169 //   repeated uint32 vals = 3 [packed = true]; // String IDs.
0170 //
0171 //   optional Info info = 4;
0172 
0173 //   optional int64 created_at = 8;
0174 //   optional int64 closetime_delta = 9;
0175 //   optional bool open = 10;
0176 //   optional HeaderBBox bbox = 11;
0177 }
0178 
0179 
0180 message Node {
0181    required sint64 id = 1;
0182    // Parallel arrays.
0183    repeated uint32 keys = 2 [packed = true]; // String IDs.
0184    repeated uint32 vals = 3 [packed = true]; // String IDs.
0185 
0186    optional Info info = 4; // May be omitted in omitmeta
0187 
0188    required sint64 lat = 8;
0189    required sint64 lon = 9;
0190 }
0191 
0192 /* Used to densly represent a sequence of nodes that do not have any tags.
0193 We represent these nodes columnwise as five columns: ID's, lats, and
0194 lons, all delta coded. When metadata is not omitted,
0195 We encode keys & vals for all nodes as a single array of integers
0196 containing key-stringid and val-stringid, using a stringid of 0 as a
0197 delimiter between nodes.
0198    ( (<keyid> <valid>)* '0' )*
0199  */
0200 
0201 message DenseNodes {
0202    repeated sint64 id = 1 [packed = true]; // DELTA coded
0203 
0204    //repeated Info info = 4;
0205    optional DenseInfo denseinfo = 5;
0206 
0207    repeated sint64 lat = 8 [packed = true]; // DELTA coded
0208    repeated sint64 lon = 9 [packed = true]; // DELTA coded
0209 
0210    // Special packing of keys and vals into one array. May be empty if all nodes in this block are tagless.
0211    repeated int32 keys_vals = 10 [packed = true];
0212 }
0213 
0214 
0215 message Way {
0216    required int64 id = 1;
0217    // Parallel arrays.
0218    repeated uint32 keys = 2 [packed = true];
0219    repeated uint32 vals = 3 [packed = true];
0220 
0221    optional Info info = 4;
0222 
0223    repeated sint64 refs = 8 [packed = true];  // DELTA coded
0224 }
0225 
0226 message Relation {
0227   enum MemberType {
0228     NODE = 0;
0229     WAY = 1;
0230     RELATION = 2;
0231   }
0232    required int64 id = 1;
0233 
0234    // Parallel arrays.
0235    repeated uint32 keys = 2 [packed = true];
0236    repeated uint32 vals = 3 [packed = true];
0237 
0238    optional Info info = 4;
0239 
0240    // Parallel arrays
0241    repeated int32 roles_sid = 8 [packed = true]; // This should have been defined as uint32 for consistency, but it is now too late to change it
0242    repeated sint64 memids = 9 [packed = true]; // DELTA encoded
0243    repeated MemberType types = 10 [packed = true];
0244 }