public IGeographicCoordinateSystem CreateGeographicCoordinateSystem(int gcsType)
{
IGeographicCoordinateSystem gcs = null;
switch (gcsType)
{
case (int)RgSRGeoCSType.RgSRGeoCS_WGS1984: // WGS 1984.
List <AxisInfo> axes = new List <AxisInfo>(2);
axes.Add(new AxisInfo("Lon", AxisOrientationEnum.East));
axes.Add(new AxisInfo("Lat", AxisOrientationEnum.North));
IHorizontalDatum datum = this.CreateDatum((int)RgSRDatumType.RgSRDatum_WGS1984);
gcs = new GeographicCoordinateSystem(CoordinateSystems.AngularUnit.Degrees,
datum, CoordinateSystems.PrimeMeridian.Greenwich, axes,
"WGS1984", "EPSG", 4326, String.Empty, string.Empty, string.Empty);
break;
case (int)RgSRGeoCSType.RgSRGeoCS_Beijing1954:
List <AxisInfo> axes2 = new List <AxisInfo>(2);
axes2.Add(new AxisInfo("Lon", AxisOrientationEnum.East));
axes2.Add(new AxisInfo("Lat", AxisOrientationEnum.North));
IHorizontalDatum datum2 = this.CreateDatum((int)RgSRDatumType.RgSRDatum_Beijing1954);
gcs = new GeographicCoordinateSystem(CoordinateSystems.AngularUnit.Degrees,
datum2, CoordinateSystems.PrimeMeridian.Greenwich, axes2,
"Beijing1954", "EPSG", 4214, String.Empty, string.Empty, string.Empty);
break;
case (int)RgSRGeoCS3Type.RgSRGeoCS_Xian1980: //Xian80.
List <AxisInfo> axes3 = new List <AxisInfo>(2);
axes3.Add(new AxisInfo("Lon", AxisOrientationEnum.East));
axes3.Add(new AxisInfo("Lat", AxisOrientationEnum.North));
IHorizontalDatum datum3 = this.CreateDatum((int)RgSRDatumType.RgSRDatum_Xian1980);
gcs = new GeographicCoordinateSystem(CoordinateSystems.AngularUnit.Degrees,
datum3, CoordinateSystems.PrimeMeridian.Greenwich, axes3,
"Xian1980", "EPSG", 4610, String.Empty, string.Empty, string.Empty);
break;
}
return(gcs);
}
/// <summary>
/// Creates a <see cref="ProjectedCoordinateSystem"/> using a projection object.
/// </summary>
/// <param name="name">Name of projected coordinate system</param>
/// <param name="gcs">Geographic coordinate system</param>
/// <param name="projection">Projection</param>
/// <param name="linearUnit">Linear unit</param>
/// <param name="axis0">Primary axis</param>
/// <param name="axis1">Secondary axis</param>
/// <returns>Projected coordinate system</returns>
public ProjectedCoordinateSystem CreateProjectedCoordinateSystem(string name, GeographicCoordinateSystem gcs, IProjection projection, LinearUnit linearUnit, AxisInfo axis0, AxisInfo axis1)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentException("Invalid name", nameof(name));
}
if (gcs == null)
{
throw new ArgumentException("Geographic coordinate system was null", nameof(gcs));
}
if (projection == null)
{
throw new ArgumentException("Projection was null", nameof(projection));
}
if (linearUnit == null)
{
throw new ArgumentException("Linear unit was null");
}
var info = new List <AxisInfo>(2);
info.Add(axis0);
info.Add(axis1);
return(new ProjectedCoordinateSystem(null, gcs, linearUnit, projection, info, name, string.Empty, -1, string.Empty, string.Empty, string.Empty));
}
/// <summary>
///
/// </summary>
/// <param name="tokenizer"></param>
/// <returns></returns>
private static IGeographicCoordinateSystem ReadGeographicCoordinateSystem(WktStreamTokenizer tokenizer)
{
/*
GEOGCS["OSGB 1936",
DATUM["OSGB 1936",SPHEROID["Airy 1830",6377563.396,299.3249646,AUTHORITY["EPSG","7001"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6277"]]
PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]]
AXIS["Geodetic latitude","NORTH"]
AXIS["Geodetic longitude","EAST"]
AUTHORITY["EPSG","4277"]
]
*/
tokenizer.ReadToken("[");
string name = tokenizer.ReadDoubleQuotedWord();
tokenizer.ReadToken(",");
tokenizer.ReadToken("DATUM");
IHorizontalDatum horizontalDatum = ReadHorizontalDatum(tokenizer);
tokenizer.ReadToken(",");
tokenizer.ReadToken("PRIMEM");
IPrimeMeridian primeMeridian = ReadPrimeMeridian(tokenizer);
tokenizer.ReadToken(",");
tokenizer.ReadToken("UNIT");
IAngularUnit angularUnit = ReadAngularUnit(tokenizer);
string authority = String.Empty;
long authorityCode = -1;
tokenizer.NextToken();
List<AxisInfo> info = new List<AxisInfo>(2);
if (tokenizer.GetStringValue() == ",")
{
tokenizer.NextToken();
while (tokenizer.GetStringValue() == "AXIS")
{
info.Add(ReadAxis(tokenizer));
tokenizer.NextToken();
if (tokenizer.GetStringValue() == ",") tokenizer.NextToken();
}
if (tokenizer.GetStringValue() == ",") tokenizer.NextToken();
if (tokenizer.GetStringValue() == "AUTHORITY")
{
tokenizer.ReadAuthority(ref authority, ref authorityCode);
tokenizer.ReadToken("]");
}
}
//This is default axis values if not specified.
if (info.Count == 0)
{
info.Add(new AxisInfo("Lon", AxisOrientationEnum.East));
info.Add(new AxisInfo("Lat", AxisOrientationEnum.North));
}
IGeographicCoordinateSystem geographicCS = new GeographicCoordinateSystem(angularUnit, horizontalDatum,
primeMeridian, info, name, authority, authorityCode, String.Empty, String.Empty, String.Empty);
return geographicCS;
}
public void DoWork(object sender, DoWorkEventArgs e)
{
try
{
info.InfoText = "Calculating";
info.OnPropertyChanged("InfoText");
info.CanImport = false;
info.OnPropertyChanged("CanImport");
IQueryable <Data.Node> nodeQuery = (from n in DataContext.Nodes
select n);
#region Limit query
if (info.EastingsMin.HasValue)
{
nodeQuery = (from n in nodeQuery
where n.Easting > info.EastingsMin
select n);
}
if (info.EastingsMax.HasValue)
{
nodeQuery = (from n in nodeQuery
where n.Easting < info.EastingsMax
select n);
}
if (info.NorthingsMin.HasValue)
{
nodeQuery = (from n in nodeQuery
where n.Northing > info.NorthingsMin
select n);
}
if (info.NorthingsMax.HasValue)
{
nodeQuery = (from n in nodeQuery
where n.Northing < info.NorthingsMax
select n);
}
#endregion
IQueryable <Data.Link> linkQuery = (from l in DataContext.Links
from n in nodeQuery
where l.ANode == n.ID || l.BNode == n.ID
select l).Distinct();
int nodeNo = nodeQuery.Count();
int linkNo = linkQuery.Count();
info.MaxRecords = nodeNo + linkNo;
info.InfoText = "Nodes: " + nodeNo + ", Links: " + linkNo + Environment.NewLine;
info.OnPropertyChanged("MaxRecords");
info.OnPropertyChanged("InfoText");
Model = new TransportModel.Model.Model();
info.InfoText += "Loading nodes" + Environment.NewLine;
info.OnPropertyChanged("InfoText");
foreach (Data.Node n in nodeQuery)
{
if (CheckForCancellation(this.worker, e))
{
return;
}
Mem.Node memNode = new TransportModel.Model.Node(n.ID, n.Easting, n.Northing);
Model.AllNodes.Add(n.ID, memNode);
info.RecordNumber++;
info.OnPropertyChanged("RecordNumber");
}
info.InfoText += "Loading links" + Environment.NewLine;
info.OnPropertyChanged("InfoText");
foreach (Data.Link l in linkQuery)
{
if (CheckForCancellation(this.worker, e))
{
return;
}
Mem.Link link = new TransportModel.Model.Link(l.ID, l.Length, l.Attributes, l.Polyline);
if (l.ANode.HasValue && Model.AllNodes.ContainsKey(l.ANode.Value))
{
link.StartNode = Model.AllNodes[l.ANode.Value];
if (link.StartNode != null)
{
link.StartNode.Links.Add(link);
}
}
if (l.BNode.HasValue && Model.AllNodes.ContainsKey(l.BNode.Value))
{
link.EndNode = Model.AllNodes[l.BNode.Value];
if (link.EndNode != null)
{
link.EndNode.Links.Add(link);
}
}
if (!Model.AllLinks.ContainsKey(l.ID))
{
Model.AllLinks.Add(l.ID, link);
}
else
{
info.InfoText += "Link id " + l.ID + " already used" + Environment.NewLine;
info.OnPropertyChanged("InfoText");
}
info.RecordNumber++;
info.OnPropertyChanged("RecordNumber");
}
info.InfoText += "Linking links" + Environment.NewLine;
info.OnPropertyChanged("InfoText");
ProjNet.CoordinateSystems.GeographicCoordinateSystem a = ProjNet.CoordinateSystems.GeographicCoordinateSystem.WGS84;
foreach (Mem.Link lnk in Model.AllLinks.Values)
{
LinkNodeLinks(lnk, lnk.StartNode);
LinkNodeLinks(lnk, lnk.EndNode);
}
info.InfoText += "Getting attributes" + Environment.NewLine;
info.OnPropertyChanged("InfoText");
List <Mem.Attribute> allAttributes = (from attr in DataContext.AttributeLists
select new Mem.Attribute(attr.name, attr.value, attr.node, attr.arrayindex, attr.ATOB_mask, attr.BTOA_mask)).ToList();
Model.Attributes = allAttributes;
info.InfoText += "Done" + Environment.NewLine;
info.OnPropertyChanged("InfoText");
}
catch (Exception ex)
{
info.InfoText += "Problem!!!!!!!" + Environment.NewLine + ex.ToString() + Environment.NewLine + ex.StackTrace;
info.OnPropertyChanged("InfoText");
}
}
