/// <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>
/// 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 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);
}
