static int ReadNodesPath(byte[] buf, int ofs, out OsmNode[] nodes)
{
ulong tmp;
int p = ProtoBuf.ReadVarInt(buf, ofs, out tmp);
nodes = new OsmNode[tmp];
for (int i = 0; i < nodes.Length; i++)
{
p += OsmNode.ReadBinary(buf, ofs + p, out nodes[i]);
}
return(p);
}
OsmRelation GetRelationData(long relationIndex, out OsmWay[] osmWays, out OsmNode[] osmNodes)
{
var buf = cacheBuffer;
cacheData.Position = relationIndex;
cacheData.Read(buf, 0, sizeof(int));
int size = BitConverter.ToInt32(buf, 0) - sizeof(int);
if (cacheData.Read(buf, sizeof(int), size) != size)
{
throw new IOException("EOF?");
}
int p = sizeof(int);
OsmRelation osmRelation;
p += OsmRelation.ReadBinary(buf, p, out osmRelation);
ulong tmp;
p += ProtoBuf.ReadVarInt(buf, p, out tmp);
osmWays = new OsmWay[tmp];
for (int i = 0; i < osmWays.Length; i++)
{
p += OsmWay.ReadBinary(buf, p, out osmWays[i]);
}
DecodeDelta(osmWays);
p += ProtoBuf.ReadVarInt(buf, p, out tmp);
osmNodes = new OsmNode[tmp];
for (int i = 0; i < osmNodes.Length; i++)
{
p += OsmNode.ReadBinary(buf, p, out osmNodes[i]);
}
DecodeDelta(osmNodes);
if (p != size + sizeof(int))
{
throw new PbfParseException();
}
return(osmRelation);
}