private List <ViewModel.Polyline> GetDifferencePolyline()
{
GeoJSON.Net.Geometry.Position warszawa = new GeoJSON.Net.Geometry.Position(52.229941, 21.011105);
GeoJSON.Net.Geometry.Position mlawa = new GeoJSON.Net.Geometry.Position(53.112154, 20.382377);
GeoJSON.Net.Geometry.Position plock = new GeoJSON.Net.Geometry.Position(52.546665, 19.687432);
OsrmJsonRouteModel parsed = OsrmAPIHelper.GetOptimalRoute(warszawa, mlawa);
var route = parsed.ToRouteModel();
var jsonNew = OsrmAPIHelper.GetOptimalRoute(warszawa, mlawa, plock);
var newRoute = jsonNew.ToRouteModel();
//var oldRouteGMultiLineString = route.MultiLineString.ToSqlGeography();
//var newRouteGMultiLineString = newRoute.MultiLineString.ToSqlGeography();
//var difference = newRouteGMultiLineString.STDifference(oldRouteGMultiLineString);
//var oldRouteG = route.LineString.ToSqlGeography();
//var newRouteG = newRoute.LineString.ToSqlGeography().MakeValidIfInvalid();
//string isValid = newRouteG.IsValidDetailed();
//var difference = newRouteG.STDifference(oldRouteG);
Microsoft.SqlServer.Types.SqlGeography oldRouteGeography = route.MultiPointGeoJsonNet.ToSqlGeography();
Microsoft.SqlServer.Types.SqlGeography newRouteGeography = newRoute.MultiPointGeoJsonNet.ToSqlGeography();
Microsoft.SqlServer.Types.SqlGeography bufferOld = oldRouteGeography.STBuffer(1000);
Microsoft.SqlServer.Types.SqlGeography bufferNew = newRouteGeography.STBuffer(1000);
var difference = bufferNew.STDifference(bufferOld);
double diffArea = (double)difference.STArea();
double oldArea = (double)bufferOld.STArea();
double newArea = (double)bufferNew.STArea();
double howDifferent = diffArea / oldArea;
List <ViewModel.Polyline> lines = new List <ViewModel.Polyline>();
//lines.Add(GetFromSqlGeography(oldRouteGeography));
//lines.Add(GetFromSqlGeography(newRouteGeography));
//lines.Add(GetFromSqlGeography(difference));
//lines.Add(GetFromSqlGeography(bufferNew));
//lines.Add(GetFromSqlGeography(bufferOld));
//lines.Add(GetFromSqlGeography(oldRouteG));
//lines.Add(GetFromSqlGeography(newRouteG));
//lines.Add(GetFromSqlGeography(difference));
//lines.Add(GetFromSqlGeography(newRouteGMultiLineString));
//lines.Add(GetFromSqlGeography(oldRouteGMultiLineString));
var polylines = GetFromSqlGeographies(difference);
foreach (var line in polylines)
{
lines.Add(line);
}
return(lines);
}
internal SqlGeography(SqlTypes.SqlGeography sg, ICoordinateSystem coordinateSystem)
{
Debug.Assert(sg != null);
if (sg == null)
{
throw new ArgumentNullException("sg");
}
_Geography = sg;
_CoordinateSystem = coordinateSystem;
}
private ViewModel.Polyline GetFromSqlGeography(Microsoft.SqlServer.Types.SqlGeography multiPoint)
{
var result = new ViewModel.Polyline()
{
Locations = new LocationCollection()
};
for (int i = 1; i <= multiPoint.STNumPoints(); i++)
{
Microsoft.SqlServer.Types.SqlGeography point = multiPoint.STPointN(i);
result.Locations.Add(new Location((double)point.Lat, (double)point.Long));
}
return(result);
}
private List <ViewModel.Polyline> GetBufferPolyline()
{
GeoJSON.Net.Geometry.Position pos1 = new GeoJSON.Net.Geometry.Position(52.218703, 21.005044);
GeoJSON.Net.Geometry.Position pos2 = new GeoJSON.Net.Geometry.Position(54.182346, 16.189145);
OsrmJsonRouteModel parsed = OsrmAPIHelper.GetOptimalRoute(pos1, pos2);
var route = parsed.ToRouteModel();
Microsoft.SqlServer.Types.SqlGeography sqlGeography = route.MultiPointGeoJsonNet.ToSqlGeography();
Microsoft.SqlServer.Types.SqlGeography buffer = sqlGeography.STBuffer(100000);
List <ViewModel.Polyline> lines = new List <ViewModel.Polyline>();
lines.Add(GetFromSqlGeography(sqlGeography));
lines.Add(GetFromSqlGeography(buffer));
return(lines);
}
private List <ViewModel.Polyline> GetFromSqlGeographies(Microsoft.SqlServer.Types.SqlGeography sqlGeography)
{
var result = new List <ViewModel.Polyline>();
for (int i = 1; i <= (int)sqlGeography.STNumGeometries(); i++)
{
Microsoft.SqlServer.Types.SqlGeography geography = sqlGeography.STGeometryN(i);
var polyline = new ViewModel.Polyline()
{
Locations = new LocationCollection()
};
for (int j = 1; j <= geography.STNumPoints(); j++)
{
Microsoft.SqlServer.Types.SqlGeography point = geography.STPointN(j);
polyline.Locations.Add(new Location((double)point.Lat, (double)point.Long));
}
result.Add(polyline);
}
return(result);
}
/// <summary>Creates a new instance of the <see cref="SqlGeometry" /> class.</summary>
public SqlGeography(SqlTypes.SqlGeography sg) :
this(sg, null)
{
}