static void Main(string[] args)
{
var kit = new GdalKit();
var info = kit.GetGdalInfo();
Console.WriteLine("Buildinfo: " + info.BuildInfo);
Console.WriteLine("Releasename: " + info.ReleaseName);
Console.WriteLine("Versionnumber: " + info.VersionNumber);
Console.WriteLine("Number of drivers: " + info.Drivers.Count);
Console.WriteLine("Drivers: " + String.Join(',', info.Drivers));
// sample reading (city)gml file
var gmlDriver = Ogr.GetDriverByName("GML");
var dsGml = gmlDriver.Open(@"LoD2_280_5657_1_NW.gml", 0);
var buildingLayer = dsGml.GetLayerByName("building");
var featuresGml = buildingLayer.GetFeatureCount(0);
Console.WriteLine($"Number of features: {featuresGml}");
for (var f = 0; f < featuresGml; f++)
{
var featureGml = buildingLayer.GetNextFeature();
var geometry = featureGml.GetGeometryRef();
// serialize to wkt... when using wkb there is an error :-(
var wkt = string.Empty;
geometry.ExportToWkt(out wkt);
var geom = Wkx.Geometry.Deserialize <WktSerializer>(wkt);
// Console.WriteLine(geom.GeometryType + ", " + ((MultiLineString)geom).Geometries.Count); // result is multilinestring...
}
// sample read geojson file
var geojsonDriver = Ogr.GetDriverByName("GeoJSON");
var ds = geojsonDriver.Open(@"gemeenten2016.geojson", 0);
var layer1 = ds.GetLayerByName("gemeenten2016");
var features = layer1.GetFeatureCount(0);
Console.WriteLine("features in geojson: " + features);
// sample transform coordinate from epsg:28992 to epsg:4326
var src = new SpatialReference("");
src.ImportFromEPSG(28992);
Console.WriteLine("SOURCE IsGeographic:" + src.IsGeographic() + " IsProjected:" + src.IsProjected());
var dst = new SpatialReference("");
dst.ImportFromEPSG(4326);
Console.WriteLine("DEST IsGeographic:" + dst.IsGeographic() + " IsProjected:" + dst.IsProjected());
var ct = new CoordinateTransformation(src, dst);
double[] p = new double[3];
p[0] = 85530; p[1] = 446100; p[2] = 0;
Console.WriteLine("From: x:" + p[0] + " y:" + p[1] + " z:" + p[2]);
ct.TransformPoint(p);
Console.WriteLine("To: x:" + p[0] + " y:" + p[1] + " z:" + p[2]);
Console.WriteLine("Program finished, press any key to exit.");
// Console.ReadKey();
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
var gdalKit = new GdalKit();
var info = gdalKit.GetGdalInfo();
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseRouting();
app.UseEndpoints(endpoints =>
{
endpoints.MapGet("/", async context =>
{
await context.Response.WriteAsync("Buildinfo: " + info.BuildInfo + Environment.NewLine);
await context.Response.WriteAsync("Releasename: " + info.ReleaseName + Environment.NewLine);
await context.Response.WriteAsync("Versionnumber: " + info.VersionNumber + Environment.NewLine);
await context.Response.WriteAsync("Number of drivers: " + info.Drivers.Count + Environment.NewLine);
await context.Response.WriteAsync("Drivers: " + string.Join(',', info.Drivers) + Environment.NewLine);
});
});
}
