private DenseNodes ReadDenseNodes()
{
reader.BeginReadMessage();
var result = new DenseNodes();
while (reader.State == ProtobufReaderState.Field)
{
switch (reader.FieldNumber)
{
case 1:
result.Ids.AddRange(reader.ReadPackedSInt64Array());
break;
case 8:
result.Latitudes.AddRange(reader.ReadPackedSInt64Array());
break;
case 9:
result.Longitudes.AddRange(reader.ReadPackedSInt64Array());
break;
case 10:
result.KeysValues.AddRange(reader.ReadPackedInt64Array().Select(x => (int)x));
break;
default:
reader.Skip();
break;
}
}
reader.EndReadMessage();
return(result);
}
/// <summary>
/// Reads and parses a dense nodes (DenseNodes)
/// </summary>
/// <param name="denseNodes">Dense nodes to parse</param>
/// <param name="latOffset">Offset latitude = .000000001 * primitiveBlock.lat_offset</param>
/// <param name="lonOffset">Longitude offset = .000000001 * primitiveBlock.lon_offset</param>
/// <param name="granularity">Granularity = .000000001 * primitiveBlock.granularity</param>
private void ReadDenseNodes(PrimitiveBlock primitiveBlock, DenseNodes denseNodes, double latOffset, double lonOffset, double granularity)
{
int l = 0;
long deltaid = 0;
long deltalat = 0;
long deltalon = 0;
long deltatimestamp = 0;
long deltachangeset = 0;
long deltauid = 0;
long deltauser_sid = 0;
int dateGranularity = primitiveBlock.date_granularity;
string key;
string val;
int hashTag;
int hashValue;
int idKey;
int idValue;
TypeValueTag typeValueTag;
// Is it possible to import on the basis of the presence of significant tags
bool IsImportToDb;
for (int k = 0; k < denseNodes.id.Count; k++)
{
int has_tags = 0;
deltaid += denseNodes.id[k];
deltalat += denseNodes.lat[k];
deltalon += denseNodes.lon[k];
DateTime stamp = new DateTime();
if (denseNodes.denseinfo != null)
{
DenseInfo denseinfo = denseNodes.denseinfo;
deltatimestamp += denseinfo.timestamp[k];
//deltachangeset += denseinfo.changeset[k];
//deltauid += denseinfo.uid[k];
//deltauser_sid += denseinfo.user_sid[k];
stamp = this.timeEpoche.AddSeconds(deltatimestamp * dateGranularity / 1000);
}
Node node = new Node(deltaid, latOffset + (deltalat * granularity),
lonOffset + (deltalon * granularity), stamp);
IsImportToDb = false;
if (l < denseNodes.keys_vals.Count)
{
while (denseNodes.keys_vals[l] != 0 && l < denseNodes.keys_vals.Count)
{
if (has_tags < 1)
{
has_tags++;
}
key = UTF8Encoding.UTF8.GetString(
primitiveBlock.stringtable.s[denseNodes.keys_vals[l]]);
val = UTF8Encoding.UTF8.GetString(
primitiveBlock.stringtable.s[denseNodes.keys_vals[l + 1]]);
OsmRepository.TagsRepository.AddTag(key, val, out idKey, out idValue, out typeValueTag);
if (typeValueTag != TypeValueTag.NoImport)
{
IsImportToDb = true;
this.InsertTagsAndValue(node.Id, idKey, idValue, val, typeValueTag);
}
l += 2;
}
l += 1;
}
// Check whether there is a tags of an object
if (IsImportToDb)
{
node.GeoType = new GeoType(GeoTypeOGC.Point);
//_nodesOsm.Add(node.Id, node);
this.AddNode(node);
}
else
{
//_nodesOsm.Add(node.Id, node);
this.AddNode(node);
}
}
}
