public int GetOsmDataCount(BoundingBox bbox, IOsmDataSettings filter)
{
try
{
using (TimeSpanBlock timeSpanBlock = new TimeSpanBlock("GetOsmDataAsGeoJson", _logger, LogLevel.Debug))
{
OverpassQuery query = new OverpassQuery(bbox, _logger);
if (filter != null)
{
if (filter.WaysFilter != null)
{
foreach (var tagFilter in filter.WaysFilter)
{
query.WithWays(tagFilter);
}
}
if (filter.RelationsFilter != null)
{
foreach (var tagFilter in filter.RelationsFilter)
{
query.WithRelations(tagFilter);
}
}
if (filter.NodesFilter != null)
{
foreach (var tagFilter in filter.NodesFilter)
{
query.WithNodes(tagFilter);
}
}
}
var task = query.AsCount()
.RunQueryAsync()
.ToCountAsync();
OverpassCountResult count = task.GetAwaiter().GetResult();
return(count.Tags.Nodes * 2);
}
}
catch (Exception ex)
{
_logger.LogError($"{nameof(GetOsmDataAsGeoJson)} error: {ex.Message}");
throw;
}
}
public IEnumerable <IFeature> GetOsmDataAsGeoJson(BoundingBox bbox, IOsmDataSettings filter)
{
try
{
using (TimeSpanBlock timeSpanBlock = new TimeSpanBlock(nameof(GetOsmDataAsGeoJson), _logger, LogLevel.Debug))
{
OverpassQuery query = new OverpassQuery(bbox, _logger);
if (filter != null)
{
if (filter.WaysFilter != null)
{
foreach (var tagFilter in filter.WaysFilter)
{
query.WithWays(tagFilter);
}
}
if (filter.RelationsFilter != null)
{
foreach (var tagFilter in filter.RelationsFilter)
{
query.WithRelations(tagFilter);
}
}
if (filter.NodesFilter != null)
{
foreach (var tagFilter in filter.NodesFilter)
{
query.WithNodes(tagFilter);
}
}
}
var task = query.ToGeoJSONAsync();
FeatureCollection ways = task.GetAwaiter().GetResult();
_logger.LogInformation($"{ways?.Count} features downloaded");
return(ways);
}
}
catch (Exception ex)
{
_logger.LogError($"{nameof(GetOsmDataAsGeoJson)} error: {ex.Message}");
throw;
}
}