/// <summary>
/// Converts a PBF way into an OsmSharp-way.
/// </summary>
public static OsmSharp.Way DecodeWay(PrimitiveBlock block, OsmSharp.IO.PBF.Way pbfWay)
{
var way = new OsmSharp.Way();
Encoder.DecodeWay(block, pbfWay, way);
return(way);
}
/// <summary>
/// Encodes an OsmSharp-node into a PBF-node.
/// </summary>
public static OsmSharp.IO.PBF.Node EncodeNode(PrimitiveBlock block, Dictionary <string, int> reverseStringTable, OsmSharp.Node node)
{
var pbfNode = new OsmSharp.IO.PBF.Node();
Encoder.EncodeNode(block, reverseStringTable, pbfNode, node);
return(pbfNode);
}
/// <summary>
/// Converts a PBF-way into an OsmSharp-way.
/// </summary>
public static void DecodeWay(PrimitiveBlock block, OsmSharp.IO.PBF.Way pbfWay, OsmSharp.Way way)
{
// make sure old data is gone.
if (way.Nodes != null &&
way.Nodes.Length > 0)
{ // clear nodes list.
way.Nodes = new long[pbfWay.refs.Count];
}
if (way.Tags != null)
{ // clear the tags collection.
way.Tags.Clear();
}
if (way.Nodes == null)
{ // create nodes list.
way.Nodes = new long[pbfWay.refs.Count];
}
if (way.Tags == null)
{ // create tags collection.
way.Tags = new TagsCollection(pbfWay.keys.Count);
}
// set new stuff.
way.Id = pbfWay.id;
if (pbfWay.refs.Count > 0)
{ // fill nodes-list.
long nodeId = 0;
for (int i = 0; i < pbfWay.refs.Count; i++)
{
nodeId = nodeId + pbfWay.refs[i];
way.Nodes[i] = nodeId;
}
}
if (pbfWay.keys.Count > 0)
{
for (var i = 0; i < pbfWay.keys.Count; i++)
{
var key = System.Text.Encoding.UTF8.GetString(block.stringtable.s[(int)pbfWay.keys[i]]);
var value = System.Text.Encoding.UTF8.GetString(block.stringtable.s[(int)pbfWay.vals[i]]);
if (!way.Tags.TryAdd(key, value))
{
// Addition of the tag failed
Logger.Log("invalid tag", TraceEventType.Error,
$"Could not add tag `{key}={value}` to the tagscollection of osm.org/way/{way.Id} - possible duplicate keys?");
}
}
}
if (pbfWay.info != null)
{ // add the metadata if any.
way.ChangeSetId = pbfWay.info.changeset;
way.TimeStamp = Encoder.DecodeTimestamp(pbfWay.info.timestamp, block.date_granularity);
way.UserId = pbfWay.info.uid;
way.UserName = null;
if (block.stringtable != null)
{
way.UserName = System.Text.Encoding.UTF8.GetString(block.stringtable.s[pbfWay.info.user_sid]);
}
way.Version = pbfWay.info.version;
}
way.Visible = true;
}
/// <summary>
/// Encodes a string.
/// </summary>
/// <returns></returns>
public static int EncodeString(PrimitiveBlock block, Dictionary <string, int> reverseStringTable, string value)
{
if (value == null)
{
return(0);
}
if (block.stringtable == null)
{
block.stringtable = new StringTable();
block.stringtable.s.Add(System.Text.Encoding.UTF8.GetBytes(string.Empty));
reverseStringTable.Add(string.Empty, 0);
}
int id;
if (reverseStringTable.TryGetValue(value, out id))
{
return(id);
}
block.stringtable.s.Add(System.Text.Encoding.UTF8.GetBytes(value));
reverseStringTable.Add(value, block.stringtable.s.Count - 1);
return(block.stringtable.s.Count - 1);
}
/// <summary>
/// Converts the PBF node into an OsmSharp-node.
/// </summary>
public static OsmSharp.Node DecodeNode(PrimitiveBlock block, OsmSharp.IO.PBF.Node pbfNode)
{
var node = new OsmSharp.Node();
Encoder.DecodeNode(block, pbfNode, node);
return(node);
}
/// <summary>
/// Converts a PBF way into an OsmSharp-relation.
/// </summary>
public static OsmSharp.Relation DecodeRelation(PrimitiveBlock block, OsmSharp.IO.PBF.Relation pbfRelation)
{
var relation = new OsmSharp.Relation();
Encoder.DecodeRelation(block, pbfRelation, relation);
return(relation);
}
/// <summary>
/// Encodes an OsmSharp-node into a PBF-node.
/// </summary>
public static OsmSharp.IO.PBF.Node EncodeNode(PrimitiveBlock block, Dictionary <string, int> reverseStringTable,
OsmSharp.IO.PBF.Node pbfNode, OsmSharp.Node node)
{
pbfNode.id = node.Id.Value;
pbfNode.info = new Info();
pbfNode.info.version = 0;
if (node.ChangeSetId.HasValue)
{
pbfNode.info.changeset = node.ChangeSetId.Value;
}
else
{
pbfNode.info.changeset = 0;
}
if (node.TimeStamp.HasValue)
{
pbfNode.info.timestamp = Encoder.EncodeTimestamp(node.TimeStamp.Value, block.date_granularity);
}
else
{
pbfNode.info.timestamp = 0;
}
if (node.UserId.HasValue)
{
pbfNode.info.uid = (int)node.UserId.Value;
}
else
{
pbfNode.info.uid = 0;
}
pbfNode.info.user_sid = Encoder.EncodeString(block, reverseStringTable, node.UserName);
if (node.Version.HasValue)
{
pbfNode.info.version = (int)node.Version.Value;
}
else
{
pbfNode.info.version = 0;
}
pbfNode.lat = Encoder.EncodeLatLon(node.Latitude.Value, block.lat_offset, block.granularity);
pbfNode.lon = Encoder.EncodeLatLon(node.Longitude.Value, block.lon_offset, block.granularity);
if (node.Tags != null)
{
foreach (var tag in node.Tags)
{
pbfNode.keys.Add((uint)Encoder.EncodeString(block, reverseStringTable, tag.Key));
pbfNode.vals.Add((uint)Encoder.EncodeString(block, reverseStringTable, tag.Value));
}
}
else
{
pbfNode.keys.Clear();
pbfNode.vals.Clear();
}
return(pbfNode);
}
/// <summary>
/// Writes one PBF primitive block.
/// </summary>
/// <param name="block">The block to write.</param>
public void ReadAll(PrimitiveBlock block)
{
// check parameters.
if (block == null)
{
throw new ArgumentNullException("block");
}
// TODO: all the important stuff!
}
/// <summary>
/// Encodes an OsmSharp-way into a PBF-way.
/// </summary>
public static OsmSharp.IO.PBF.Way EncodeWay(PrimitiveBlock block, Dictionary <string, int> reverseStringTable, OsmSharp.Way way)
{
var pbfWay = new OsmSharp.IO.PBF.Way();
pbfWay.id = way.Id.Value;
pbfWay.info = new Info();
if (way.ChangeSetId.HasValue)
{
pbfWay.info.changeset = way.ChangeSetId.Value;
}
if (way.TimeStamp.HasValue)
{
pbfWay.info.timestamp = Encoder.EncodeTimestamp(way.TimeStamp.Value, block.date_granularity);
}
if (way.UserId.HasValue)
{
pbfWay.info.uid = (int)way.UserId.Value;
}
pbfWay.info.user_sid = Encoder.EncodeString(block, reverseStringTable, way.UserName);
pbfWay.info.version = 0;
if (way.Version.HasValue)
{
pbfWay.info.version = (int)way.Version.Value;
}
if (way.Tags != null)
{
foreach (var tag in way.Tags)
{
pbfWay.keys.Add((uint)Encoder.EncodeString(block, reverseStringTable, tag.Key));
pbfWay.vals.Add((uint)Encoder.EncodeString(block, reverseStringTable, tag.Value));
}
}
if (way.Nodes != null &&
way.Nodes.Length > 0)
{
pbfWay.refs.Add(way.Nodes[0]);
for (var i = 1; i < way.Nodes.Length; i++)
{
pbfWay.refs.Add(way.Nodes[i] - way.Nodes[i - 1]);
}
}
return(pbfWay);
}
/// <summary>
/// Converts the PBF node into an OsmSharp-node.
/// </summary>
/// <returns></returns>
public static OsmSharp.Node DecodeNode(PrimitiveBlock block, OsmSharp.IO.PBF.Node pbfNode, OsmSharp.Node node)
{
// clear old data.
if (node.Tags != null)
{ // clear tags.
node.Tags.Clear();
}
if (node.Tags == null)
{ // create tags collection.
node.Tags = new TagsCollection(0);
}
// set new stuff.
node.ChangeSetId = pbfNode.info.changeset;
node.Id = pbfNode.id;
node.Latitude = Encoder.DecodeLatLon(pbfNode.lat, block.lat_offset, block.granularity);
node.Longitude = Encoder.DecodeLatLon(pbfNode.lon, block.lon_offset, block.granularity);
for (var i = 0; i < pbfNode.keys.Count; i++)
{
var key = System.Text.Encoding.UTF8.GetString(block.stringtable.s[(int)pbfNode.keys[i]]);
var value = System.Text.Encoding.UTF8.GetString(block.stringtable.s[(int)pbfNode.vals[i]]);
if (!node.Tags.TryAdd(key, value))
{
// Addition of the tag failed
Logger.Log("invalid tag", TraceEventType.Error,
$"Could not add tag `{key}={value}` to the tagscollection of osm.org/node/{node.Id} - possible duplicate keys?");
}
}
if (pbfNode.info != null)
{ // add the metadata if any.
node.TimeStamp = Encoder.DecodeTimestamp(pbfNode.info.timestamp, block.date_granularity);
node.Visible = true;
node.Version = pbfNode.info.version;
node.UserId = pbfNode.info.uid;
node.UserName = null;
if (block.stringtable != null)
{
node.UserName = System.Text.Encoding.UTF8.GetString(block.stringtable.s[pbfNode.info.user_sid]);
}
}
node.Visible = true;
return(node);
}
private static void EncodeDenseNode(PrimitiveBlock block, Dictionary <string, int> reverseStringTable, DenseNodes groupDense, OsmSharp.Node current, OsmSharp.Node previous)
{
groupDense.id.Add(current.Id.Value - previous.Id.Value);
var currentLat = Encoder.EncodeLatLon(current.Latitude.Value, block.lat_offset, block.granularity);
var currentLon = Encoder.EncodeLatLon(current.Longitude.Value, block.lon_offset, block.granularity);
var previousLat = Encoder.EncodeLatLon(previous.Latitude.Value, block.lat_offset, block.granularity);
var previousLon = Encoder.EncodeLatLon(previous.Longitude.Value, block.lon_offset, block.granularity);
// Note that the offsets are actually cancelled out by the subtraction below
// LatDiff equals (current.Latitude - previous.Latitude) * 100000000 / granularity
var latDiff = currentLat - previousLat;
var lonDiff = currentLon - previousLon;
groupDense.lat.Add(latDiff);
groupDense.lon.Add(lonDiff);
if (current.Tags != null)
{
foreach (var nodeTag in current.Tags)
{
groupDense.keys_vals.Add(Encoder.EncodeString(block, reverseStringTable, nodeTag.Key));
groupDense.keys_vals.Add(Encoder.EncodeString(block, reverseStringTable, nodeTag.Value));
}
groupDense.keys_vals.Add(0);
}
if (groupDense.denseinfo != null)
{
groupDense.denseinfo.changeset.Add(current.ChangeSetId.Value - previous.ChangeSetId.Value);
var currentTimeStamp = Encoder.EncodeTimestamp(current.TimeStamp.Value, block.date_granularity);
var previousTimeStamp = previous.TimeStamp == null
? 0
: Encoder.EncodeTimestamp(previous.TimeStamp.Value, block.date_granularity);
groupDense.denseinfo.timestamp.Add(currentTimeStamp - previousTimeStamp);
groupDense.denseinfo.uid.Add((int)(current.UserId.Value - previous.UserId.Value));
groupDense.denseinfo.version.Add((int)(current.Version.Value - previous.Version.Value));
var previousUserNameId = previous.UserName == null
? 0
: Encoder.EncodeString(block, reverseStringTable, previous.UserName);
var currentUserNameId = Encoder.EncodeString(block, reverseStringTable, current.UserName);
groupDense.denseinfo.user_sid.Add(currentUserNameId - previousUserNameId);
}
}
/// <summary>
/// Converts the PBF node into an OsmSharp-node.
/// </summary>
/// <returns></returns>
public static OsmSharp.Node DecodeNode(PrimitiveBlock block, OsmSharp.IO.PBF.Node pbfNode, OsmSharp.Node node)
{
// clear old data.
if (node.Tags != null)
{ // clear tags.
node.Tags.Clear();
}
if (node.Tags == null)
{ // create tags collection.
node.Tags = new TagsCollection();
}
// set new stuff.
node.ChangeSetId = pbfNode.info.changeset;
node.Id = pbfNode.id;
node.Latitude = Encoder.DecodeLatLon(pbfNode.lat, block.lat_offset, block.granularity);
node.Longitude = Encoder.DecodeLatLon(pbfNode.lon, block.lon_offset, block.granularity);
for (var i = 0; i < pbfNode.keys.Count; i++)
{
node.Tags.Add(new Tag()
{
Key = System.Text.Encoding.UTF8.GetString(block.stringtable.s[(int)pbfNode.keys[i]]),
Value = System.Text.Encoding.UTF8.GetString(block.stringtable.s[(int)pbfNode.vals[i]])
});
}
if (pbfNode.info != null)
{ // add the metadata if any.
node.TimeStamp = Encoder.DecodeTimestamp(pbfNode.info.timestamp, block.date_granularity);
node.Visible = true;
node.Version = pbfNode.info.version;
node.UserId = pbfNode.info.uid;
node.UserName = null;
if (block.stringtable != null)
{
node.UserName = System.Text.Encoding.UTF8.GetString(block.stringtable.s[pbfNode.info.user_sid]);
}
}
node.Visible = true;
return(node);
}
/// <summary>
/// Converts a PBF way into an OsmSharp-relation.
/// </summary>
public static OsmSharp.Relation DecodeRelation(PrimitiveBlock block, OsmSharp.IO.PBF.Relation pbfRelation,
OsmSharp.Relation relation)
{
// make sure old data is gone.
if (relation.Members != null &&
relation.Members.Length > 0)
{ // clear members.
relation.Members = new RelationMember[pbfRelation.memids.Count];
}
if (relation.Tags != null)
{ // clear the tags collection.
relation.Tags.Clear();
}
if (relation.Members == null)
{ // clear members.
relation.Members = new RelationMember[pbfRelation.memids.Count];
}
if (relation.Tags == null)
{ // create tags collection.
relation.Tags = new TagsCollection(pbfRelation.keys.Count);
}
// add nex stuff.
relation.Id = pbfRelation.id;
long memberId = 0;
for (var i = 0; i < pbfRelation.types.Count; i++)
{
memberId = memberId + pbfRelation.memids[i];
var role = System.Text.Encoding.UTF8.GetString(
block.stringtable.s[pbfRelation.roles_sid[i]]);
var member = new OsmSharp.RelationMember();
member.Id = memberId;
member.Role = role;
switch (pbfRelation.types[i])
{
case Relation.MemberType.NODE:
member.Type = OsmSharp.OsmGeoType.Node;
break;
case Relation.MemberType.WAY:
member.Type = OsmSharp.OsmGeoType.Way;
break;
case Relation.MemberType.RELATION:
member.Type = OsmSharp.OsmGeoType.Relation;
break;
}
relation.Members[i] = member;
}
for (int i = 0; i < pbfRelation.keys.Count; i++)
{
string key = System.Text.Encoding.UTF8.GetString(block.stringtable.s[(int)pbfRelation.keys[i]]);
string value = System.Text.Encoding.UTF8.GetString(block.stringtable.s[(int)pbfRelation.vals[i]]);
relation.Tags.Add(new Tag(key, value));
}
if (pbfRelation.info != null)
{ // read metadata if any.
relation.ChangeSetId = pbfRelation.info.changeset;
relation.TimeStamp = Encoder.DecodeTimestamp(pbfRelation.info.timestamp, block.date_granularity);
relation.UserId = pbfRelation.info.uid;
relation.UserName = null;
if (block.stringtable != null)
{
relation.UserName = System.Text.Encoding.UTF8.GetString(block.stringtable.s[pbfRelation.info.user_sid]);
}
relation.Version = pbfRelation.info.version;
}
relation.Visible = true;
return(relation);
}
/// <summary>
/// Encodes the nodes into the given block.
/// </summary>
public static void Encode(this PrimitiveBlock block, Dictionary <string, int> reverseStringTable, List <OsmGeo> osmGeos, bool compressed)
{
var groupIdx = 0;
var i = 0;
if (block.stringtable != null &&
block.stringtable.s != null)
{
block.stringtable.s.Clear();
}
while (i < osmGeos.Count)
{
PrimitiveGroup group = null;
if (groupIdx < block.primitivegroup.Count)
{ // get the existing group and clear it's data.
group = block.primitivegroup[groupIdx];
if (group == null)
{
group = new PrimitiveGroup();
}
if (group.dense != null)
{
if (group.dense.denseinfo != null)
{
if (group.dense.denseinfo.changeset != null)
{
group.dense.denseinfo.changeset.Clear();
}
if (group.dense.denseinfo.timestamp != null)
{
group.dense.denseinfo.timestamp.Clear();
}
if (group.dense.denseinfo.uid != null)
{
group.dense.denseinfo.uid.Clear();
}
if (group.dense.denseinfo.user_sid != null)
{
group.dense.denseinfo.user_sid.Clear();
}
if (group.dense.denseinfo.version != null)
{
group.dense.denseinfo.version.Clear();
}
}
if (group.dense.id != null)
{
group.dense.id.Clear();
}
if (group.dense.keys_vals != null)
{
group.dense.keys_vals.Clear();
}
if (group.dense.lat != null)
{
group.dense.lat.Clear();
}
if (group.dense.lon != null)
{
group.dense.lon.Clear();
}
}
if (group.changesets != null)
{
group.changesets.Clear();
}
//if (group.nodes != null) { group.nodes.Clear(); }
if (group.ways != null)
{
group.ways.Clear();
}
if (group.relations != null)
{
group.relations.Clear();
}
}
else
{ // add a new group.
group = new PrimitiveGroup();
block.primitivegroup.Add(group);
}
// build group.
var currentNodeCount = 0;
var groupType = osmGeos[i].Type;
var previousNode = new OsmSharp.Node
{
Id = 0,
Longitude = 0,
Latitude = 0,
ChangeSetId = 0,
TimeStamp = null,
UserId = 0,
UserName = null,
Version = 0
};
if (groupType == OsmGeoType.Node && compressed && group.dense == null)
{
group.dense = new DenseNodes {
denseinfo = new DenseInfo()
};
}
while (i < osmGeos.Count &&
osmGeos[i].Type == groupType)
{
switch (groupType)
{
case OsmGeoType.Node:
if (compressed)
{
var currentNode = osmGeos[i] as OsmSharp.Node;
Encoder.EncodeDenseNode(block, reverseStringTable, group.dense, currentNode, previousNode);
previousNode = currentNode;
}
else
{
if (currentNodeCount < group.nodes.Count)
{ // overwrite existing.
Encoder.EncodeNode(block, reverseStringTable, group.nodes[currentNodeCount], osmGeos[i] as OsmSharp.Node);
}
else
{ // write new.
group.nodes.Add(Encoder.EncodeNode(block, reverseStringTable, osmGeos[i] as OsmSharp.Node));
}
currentNodeCount++;
}
break;
case OsmGeoType.Way:
group.ways.Add(Encoder.EncodeWay(block, reverseStringTable, osmGeos[i] as OsmSharp.Way));
break;
case OsmGeoType.Relation:
group.relations.Add(Encoder.EncodeRelation(block, reverseStringTable, osmGeos[i] as OsmSharp.Relation));
break;
}
i++;
}
// remove obsolete nodes.
if (group.nodes != null)
{
while (currentNodeCount < group.nodes.Count)
{
group.nodes.RemoveAt(currentNodeCount);
}
}
// move to the next group.
groupIdx++;
}
while (groupIdx < block.primitivegroup.Count)
{
block.primitivegroup.RemoveAt(groupIdx);
}
}
/// <summary>
/// Moves to the next primitive block, returns null at the end.
/// </summary>
/// <returns></returns>
public PrimitiveBlock MoveNext()
{
// make sure previous block data is removed.
if (_block.primitivegroup != null)
{
_block.primitivegroup.Clear();
}
if (_block.stringtable != null)
{
_block.stringtable.s.Clear();
}
// read next block.
PrimitiveBlock block = null;
int length;
bool notFoundBut = true;
while (notFoundBut)
{ // continue if there is still data but not a primitiveblock.
notFoundBut = false; // not found.
if (Serializer.TryReadLengthPrefix(_stream, PrefixStyle.Fixed32BigEndian, out length))
{
// TODO: remove some of the v1 specific code.
// TODO: this means also to use the built-in capped streams.
// code borrowed from: http://stackoverflow.com/questions/4663298/protobuf-net-deserialize-open-street-maps
// I'm just being lazy and re-using something "close enough" here
// note that v2 has a big-endian option, but Fixed32 assumes little-endian - we
// actually need the other way around (network byte order):
// length = IntLittleEndianToBigEndian((uint)length);
BlobHeader header;
// again, v2 has capped-streams built in, but I'm deliberately
// limiting myself to v1 features
using (var tmp = new LimitedStream(_stream, length))
{
header = _runtimeTypeModel.Deserialize(tmp, null, _blockHeaderType) as BlobHeader;
}
Blob blob;
using (var tmp = new LimitedStream(_stream, header.datasize))
{
blob = _runtimeTypeModel.Deserialize(tmp, null, _blobType) as Blob;
}
// construct the source stream, compressed or not.
Stream sourceStream = null;
if (blob.zlib_data == null)
{ // use a regular uncompressed stream.
sourceStream = new MemoryStream(blob.raw);
}
else
{ // construct a compressed stream.
var ms = new MemoryStream(blob.zlib_data);
sourceStream = new ZLibStreamWrapper(ms);
}
// use the stream to read the block.
using (sourceStream)
{
if (header.type == Encoder.OSMHeader)
{
_runtimeTypeModel.Deserialize(sourceStream, null, _headerBlockType);
notFoundBut = true;
}
if (header.type == Encoder.OSMData)
{
block = _runtimeTypeModel.Deserialize(sourceStream, _block, _primitiveBlockType) as PrimitiveBlock;
}
}
}
}
return(block);
}
/// <summary>
/// Encodes the nodes into the given block.
/// </summary>
public static void Encode(this PrimitiveBlock block, Dictionary <string, int> reverseStringTable, List <OsmGeo> osmGeos)
{
var groupIdx = 0;
var i = 0;
var nodeCount = 0;
if (block.stringtable != null &&
block.stringtable.s != null)
{
block.stringtable.s.Clear();
}
while (i < osmGeos.Count)
{
PrimitiveGroup group = null;
if (groupIdx < block.primitivegroup.Count)
{ // get the existing group and clear it's data.
group = block.primitivegroup[groupIdx];
if (group == null)
{
group = new PrimitiveGroup();
}
if (group.dense != null)
{
if (group.dense.denseinfo != null)
{
if (group.dense.denseinfo.changeset != null)
{
group.dense.denseinfo.changeset.Clear();
}
if (group.dense.denseinfo.timestamp != null)
{
group.dense.denseinfo.timestamp.Clear();
}
if (group.dense.denseinfo.uid != null)
{
group.dense.denseinfo.uid.Clear();
}
if (group.dense.denseinfo.user_sid != null)
{
group.dense.denseinfo.user_sid.Clear();
}
if (group.dense.denseinfo.version != null)
{
group.dense.denseinfo.version.Clear();
}
}
if (group.dense.id != null)
{
group.dense.id.Clear();
}
if (group.dense.keys_vals != null)
{
group.dense.keys_vals.Clear();
}
if (group.dense.lat != null)
{
group.dense.lat.Clear();
}
if (group.dense.lon != null)
{
group.dense.lon.Clear();
}
}
if (group.changesets != null)
{
group.changesets.Clear();
}
//if (group.nodes != null) { group.nodes.Clear(); }
if (group.ways != null)
{
group.ways.Clear();
}
if (group.relations != null)
{
group.relations.Clear();
}
}
else
{ // add a new group.
group = new PrimitiveGroup();
block.primitivegroup.Add(group);
}
// build group.
var groupType = osmGeos[i].Type;
var current = osmGeos[i];
while (i < osmGeos.Count &&
osmGeos[i].Type == groupType)
{
switch (groupType)
{
case OsmGeoType.Node:
if (group.nodes.Count > nodeCount)
{ // overwrite existing.
Encoder.EncodeNode(block, reverseStringTable, group.nodes[nodeCount], osmGeos[i] as OsmSharp.Node);
}
else
{ // write new.
group.nodes.Add(Encoder.EncodeNode(block, reverseStringTable, osmGeos[i] as OsmSharp.Node));
}
nodeCount++;
break;
case OsmGeoType.Way:
group.ways.Add(Encoder.EncodeWay(block, reverseStringTable, osmGeos[i] as OsmSharp.Way));
break;
case OsmGeoType.Relation:
group.relations.Add(Encoder.EncodeRelation(block, reverseStringTable, osmGeos[i] as OsmSharp.Relation));
break;
}
i++;
}
// remove obsolete nodes.
if (group.nodes != null)
{
while (nodeCount < group.nodes.Count)
{
group.nodes.RemoveAt(nodeCount);
}
}
// move to the next group.
groupIdx++;
}
while (groupIdx < block.primitivegroup.Count)
{
block.primitivegroup.RemoveAt(groupIdx);
}
}
/// <summary>
/// Encodes an OsmSharp-relation into a PBF-relation.
/// </summary>
/// <returns></returns>
public static OsmSharp.IO.PBF.Relation EncodeRelation(PrimitiveBlock block, Dictionary <string, int> reverseStringTable, OsmSharp.Relation relation)
{
var pbfRelation = new OsmSharp.IO.PBF.Relation();
pbfRelation.id = relation.Id.Value;
pbfRelation.info = new Info();
if (relation.ChangeSetId.HasValue)
{
pbfRelation.info.changeset = relation.ChangeSetId.Value;
}
if (relation.TimeStamp.HasValue)
{
pbfRelation.info.timestamp = Encoder.EncodeTimestamp(relation.TimeStamp.Value, block.date_granularity);
}
if (relation.UserId.HasValue)
{
pbfRelation.info.uid = (int)relation.UserId.Value;
}
pbfRelation.info.user_sid = Encoder.EncodeString(block, reverseStringTable, relation.UserName);
pbfRelation.info.version = 0;
if (relation.Version.HasValue)
{
pbfRelation.info.version = (int)relation.Version.Value;
}
if (relation.Tags != null)
{
foreach (var tag in relation.Tags)
{
pbfRelation.keys.Add((uint)Encoder.EncodeString(block, reverseStringTable, tag.Key));
pbfRelation.vals.Add((uint)Encoder.EncodeString(block, reverseStringTable, tag.Value));
}
}
if (relation.Members != null &&
relation.Members.Length > 0)
{
pbfRelation.memids.Add(relation.Members[0].Id);
pbfRelation.roles_sid.Add(Encoder.EncodeString(block, reverseStringTable, relation.Members[0].Role));
switch (relation.Members[0].Type)
{
case OsmGeoType.Node:
pbfRelation.types.Add(Relation.MemberType.NODE);
break;
case OsmGeoType.Way:
pbfRelation.types.Add(Relation.MemberType.WAY);
break;
case OsmGeoType.Relation:
pbfRelation.types.Add(Relation.MemberType.RELATION);
break;
}
for (var i = 1; i < relation.Members.Length; i++)
{
pbfRelation.memids.Add(relation.Members[i].Id -
relation.Members[i - 1].Id);
pbfRelation.roles_sid.Add(Encoder.EncodeString(block, reverseStringTable, relation.Members[i].Role));
switch (relation.Members[i].Type)
{
case OsmGeoType.Node:
pbfRelation.types.Add(Relation.MemberType.NODE);
break;
case OsmGeoType.Way:
pbfRelation.types.Add(Relation.MemberType.WAY);
break;
case OsmGeoType.Relation:
pbfRelation.types.Add(Relation.MemberType.RELATION);
break;
}
}
}
return(pbfRelation);
}
/// <summary>
/// Decodes the block.
/// </summary>
public static bool Decode(this PrimitiveBlock block, IPBFOsmPrimitiveConsumer primitivesConsumer,
bool ignoreNodes, bool ignoreWays, bool ignoreRelations, out bool hasNodes, out bool hasWays, out bool hasRelations)
{
var success = false;
hasNodes = false;
hasWays = false;
hasRelations = false;
if (block.primitivegroup != null)
{
foreach (var primitivegroup in block.primitivegroup)
{
if (primitivegroup.dense != null && primitivegroup.dense.id.Count > 0)
{
hasNodes = true;
if (!ignoreNodes)
{
int keyValsIdx = 0;
long currentId = 0;
long currentLat = 0;
long currentLon = 0;
long currentChangeset = 0;
long currentTimestamp = 0;
int currentUid = 0;
int currentUserSid = 0;
int currentVersion = 0;
for (int idx = 0; idx < primitivegroup.dense.id.Count; idx++)
{
// do the delta decoding stuff.
currentId = currentId +
primitivegroup.dense.id[idx];
currentLat = currentLat +
primitivegroup.dense.lat[idx];
currentLon = currentLon +
primitivegroup.dense.lon[idx];
if (primitivegroup.dense.denseinfo != null)
{ // add all the metadata.
currentChangeset = currentChangeset +
primitivegroup.dense.denseinfo.changeset[idx];
currentTimestamp = currentTimestamp +
primitivegroup.dense.denseinfo.timestamp[idx];
currentUid = currentUid +
primitivegroup.dense.denseinfo.uid[idx];
currentUserSid = currentUserSid +
primitivegroup.dense.denseinfo.user_sid[idx];
currentVersion = currentVersion +
primitivegroup.dense.denseinfo.version[idx];
}
var node = new Node();
node.id = currentId;
node.info = new Info();
node.info.changeset = currentChangeset;
node.info.timestamp = (int)currentTimestamp;
node.info.uid = currentUid;
node.info.user_sid = currentUserSid;
node.info.version = currentVersion;
node.lat = currentLat;
node.lon = currentLon;
// get the keys/vals.
var keyVals = primitivegroup.dense.keys_vals;
while (keyVals.Count > keyValsIdx &&
keyVals[keyValsIdx] != 0)
{
node.keys.Add((uint)keyVals[keyValsIdx]);
keyValsIdx++;
node.vals.Add((uint)keyVals[keyValsIdx]);
keyValsIdx++;
}
keyValsIdx++;
success = true;
hasNodes = true;
primitivesConsumer.ProcessNode(block, node);
}
}
}
else
{
if (primitivegroup.nodes != null && primitivegroup.nodes.Count > 0)
{
hasNodes = true;
if (!ignoreNodes)
{
foreach (var node in primitivegroup.nodes)
{
success = true;
primitivesConsumer.ProcessNode(block, node);
}
}
}
if (primitivegroup.ways != null && primitivegroup.ways.Count > 0)
{
hasWays = true;
if (!ignoreWays)
{
foreach (var way in primitivegroup.ways)
{
success = true;
primitivesConsumer.ProcessWay(block, way);
}
}
}
if (primitivegroup.relations != null && primitivegroup.relations.Count > 0)
{
hasRelations = true;
if (!ignoreRelations)
{
foreach (var relation in primitivegroup.relations)
{
success = true;
primitivesConsumer.ProcessRelation(block, relation);
}
}
}
}
}
}
return(success);
}
