public async Task <List <AmenityDTO> > getAmenities(Bound region, AmenityType type)
{
List <AmenityDTO> ret = new List <AmenityDTO>();
OverpassQueryBuilder oqb = new OverpassQueryBuilder(region);
var sampleQuery = "";
//Caso de excessão para pontos de ônibus
if (type.Equals(AmenityType.bus_station))
{
sampleQuery = oqb.busStopsOverpassQuery();
}
else
{
sampleQuery = oqb.amenityOverpassQuery(type);
}
try
{
string encodedURL = overpassUrl + HttpUtility.UrlEncode(sampleQuery);
using (HttpClient client = new HttpClient())
{
var responseString = await client.GetStringAsync(encodedURL);
OSMResult osm = JsonConvert.DeserializeObject <OSMResult>(responseString);
if (osm.GetNodesAsDictionary != null && osm.GetNodesAsDictionary.Count() > 0)
{
var nodes = osm.GetNodesAsDictionary;
foreach (var node in nodes)
{
ret.Add(new AmenityDTO()
{
lat = (float)node.Value.lat,
lng = (float)node.Value.lon,
name = node.Value.tags.ContainsKey("name") ? node.Value.tags["name"] : null
});
}
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return(ret);
}
public async Task <List <StreetDTO> > getStreets(Bound region)
{
List <StreetDTO> ruasDetectadas = new List <StreetDTO>();
OverpassQueryBuilder oqb = new OverpassQueryBuilder(region);
var sampleQuery = oqb.highwayOverpassQuery();
try
{
string encodedURL = overpassUrl + HttpUtility.UrlEncode(sampleQuery);
using (HttpClient client = new HttpClient())
{
var responseString = await client.GetStringAsync(encodedURL);
OSMResult osm = JsonConvert.DeserializeObject <OSMResult>(responseString);
if (osm.GetWaysAsDictionary != null && osm.GetWaysAsDictionary.Count() > 0)
{
foreach (var way in osm.GetWaysAsDictionary)
{
if (!way.Value.tags.ContainsKey("name") || String.IsNullOrWhiteSpace(way.Value.tags["name"]))
{
continue;
}
var name = way.Value.tags["name"];
var ruaExistente = ruasDetectadas.FirstOrDefault(p => p.Name.Equals(name));
var novoTrecho = new List <PointDTO>();
if (ruaExistente != null)
{
foreach (var idNode in way.Value.nodes)
{
var ponto = osm.GetNodesAsDictionary[idNode];
novoTrecho.Add(new PointDTO()
{
ID = idNode.ToString(), lat = (float)ponto.lat, lng = (float)ponto.lon
});
}
ruaExistente.Trechos.Add(novoTrecho);
//ruaExistente.Trechos = ruaExistente.Trechos.Distinct(new PointComparer()).ToList();
continue;
}
StreetDTO rua = new StreetDTO();
rua.Name = name;
foreach (var idNode in way.Value.nodes)
{
var ponto = osm.GetNodesAsDictionary[idNode];
novoTrecho.Add(new PointDTO()
{
ID = idNode.ToString(), lat = (float)ponto.lat, lng = (float)ponto.lon
});
}
rua.Trechos.Add(novoTrecho);
//rua.Trechos = rua.Trechos.Distinct(new PointComparer()).ToList();
ruasDetectadas.Add(rua);
}
}
return(ruasDetectadas);
}
}
catch (Exception ex)
{
return(new List <StreetDTO>()
{
new StreetDTO()
{
Name = "Erro! " + ex.Message
}
});
}
}
