static void Main(string[] args)
{
// let's show you what's going on.
OsmSharp.Logging.Logger.LogAction = (origin, level, message, parameters) =>
{
Console.WriteLine(string.Format("[{0}] {1} - {2}", origin, level, message));
};
Download.ToFile("http://files.itinero.tech/data/OSM/planet/europe/luxembourg-latest.osm.pbf", "luxembourg-latest.osm.pbf").Wait();
using (var fileStream = File.OpenRead("luxembourg-latest.osm.pbf"))
{
// create source stream.
var source = new PBFOsmStreamSource(fileStream);
// show progress.
var progress = source.ShowProgress();
// filter all powerlines and keep all nodes.
var filtered = from osmGeo in progress
where osmGeo.Type == OsmSharp.OsmGeoType.Node ||
(osmGeo.Type == OsmSharp.OsmGeoType.Way && osmGeo.Tags != null && osmGeo.Tags.Contains("power", "line"))
select osmGeo;
// convert to a feature stream.
// WARNING: nodes that are partof powerlines will be kept in-memory.
// it's important to filter only the objects you need **before**
// you convert to a feature stream otherwise all objects will
// be kept in-memory.
var features = filtered.ToFeatureSource();
// filter out only linestrings.
var lineStrings = from feature in features
where feature.Geometry is LineString
select feature;
// build feature collection.
var featureCollection = new FeatureCollection();
var attributesTable = new AttributesTable {
{ "type", "powerline" }
};
foreach (var feature in lineStrings)
{ // make sure there is a constant # of attributes with the same names before writing the shapefile.
featureCollection.Add(new Feature(feature.Geometry, attributesTable));
}
// convert to shape.
var header = ShapefileDataWriter.GetHeader(featureCollection.Features.First(), featureCollection.Features.Count);
var shapeWriter = new ShapefileDataWriter("luxembourg.shp", new GeometryFactory())
{
Header = header
};
shapeWriter.Write(featureCollection.Features);
}
}
static void ReadGeometryStream()
{
// let's show you what's going on.
OsmSharp.Logging.Logger.LogAction = (origin, level, message, parameters) =>
{
System.Console.WriteLine(string.Format("[{0}] {1} - {2}", origin, level, message));
};
// Download.ToFile("http://files.itinero.tech/data/OSM/planet/europe/luxembourg-latest.osm.pbf", "luxembourg-latest.osm.pbf").Wait();
using (System.IO.FileStream fileStream = System.IO.File.OpenRead(@"D:\username\Documents\Visual Studio 2017\Projects\OsmTilePrerenderer\OsmTilePrerenderer\Data\monaco-latest.osm.pbf"))
{
// create source stream.
OsmStreamSource source = new PBFOsmStreamSource(fileStream);
// show progress.
OsmStreamSource progress = source.ShowProgress();
// filter all powerlines and keep all nodes.
System.Collections.Generic.IEnumerable <OsmGeo> filtered =
from osmGeo in progress
where osmGeo.Type == OsmSharp.OsmGeoType.Node ||
(osmGeo.Type == OsmSharp.OsmGeoType.Way && osmGeo.Tags != null && osmGeo.Tags.Contains("power", "line"))
select osmGeo;
// convert to a feature stream.
// WARNING: nodes that are partof powerlines will be kept in-memory.
// it's important to filter only the objects you need **before**
// you convert to a feature stream otherwise all objects will
// be kept in-memory.
OsmSharp.Geo.Streams.IFeatureStreamSource features = filtered.ToFeatureSource();
// filter out only linestrings.
System.Collections.Generic.IEnumerable <NetTopologySuite.Features.IFeature> lineStrings = from feature in features
where feature.Geometry is LineString
select feature;
// build feature collection.
NetTopologySuite.Features.FeatureCollection featureCollection = new NetTopologySuite.Features.FeatureCollection();
foreach (NetTopologySuite.Features.IFeature feature in lineStrings)
{
featureCollection.Add(feature);
}
// convert to geojson.
string json = ToJson(featureCollection);
// var st = new Mapsui.Providers.MemoryProvider(json);
System.IO.File.WriteAllText("output.geojson", json);
}
}
static void Main(string[] args)
{
// let's show you what's going on.
OsmSharp.Logging.Logger.LogAction = (origin, level, message, parameters) =>
{
Console.WriteLine(string.Format("[{0}] {1} - {2}", origin, level, message));
};
Download.ToFile("http://files.itinero.tech/data/OSM/planet/europe/luxembourg-latest.osm.pbf", "luxembourg-latest.osm.pbf").Wait();
using (var fileStream = File.OpenRead("luxembourg-latest.osm.pbf"))
{
// create source stream.
var source = new PBFOsmStreamSource(fileStream);
// show progress.
var progress = source.ShowProgress();
// filter all powerlines and keep all nodes.
var filtered = from osmGeo in progress
where osmGeo.Type == OsmSharp.OsmGeoType.Node ||
(osmGeo.Type == OsmSharp.OsmGeoType.Way && osmGeo.Tags != null && osmGeo.Tags.Contains("power", "line"))
select osmGeo;
// convert to a feature stream.
// WARNING: nodes that are partof powerlines will be kept in-memory.
// it's important to filter only the objects you need **before**
// you convert to a feature stream otherwise all objects will
// be kept in-memory.
var features = filtered.ToFeatureSource();
// filter out only linestrings.
var lineStrings = from feature in features
where feature.Geometry is LineString
select feature;
// build feature collection.
var featureCollection = new FeatureCollection();
foreach (var feature in lineStrings)
{
featureCollection.Add(feature);
}
// convert to geojson.
var json = ToJson(featureCollection);
File.WriteAllText("output.geojson", json);
}
}
