private ReadToken ( string expectedToken ) : void | ||
expectedToken | string | An expected token |
return | void |
private static Polyline readMultiLineString(WktStreamTokenizer tokenizer) { tokenizer.ReadToken("("); List<List<ICoordinate>> lists = readPointsCoordLists(tokenizer); if (tokenizer.GetStringValue() == ")") { Polyline polyline = new Polyline(); foreach (List<ICoordinate> list in lists) { LinePath path = new LinePath(); path.Vertices = list; polyline.Paths.Add(path); } return polyline; } else throwMissingCloseBracket(tokenizer); return null; }
private static Polygon readPolygon(WktStreamTokenizer tokenizer) { tokenizer.ReadToken("("); List<List<ICoordinate>> lists = readPointsCoordLists(tokenizer); if (tokenizer.GetStringValue() == ")") { Polygon polygon = new Polygon(); foreach (List<ICoordinate> list in lists) { Contour contour = new Contour(); list.RemoveAt(list.Count - 1); contour.Vertices = list; polygon.Contours.Add(contour); } return polygon; } else throwMissingCloseBracket(tokenizer); return null; }
private static PointD readPoint(WktStreamTokenizer tokenizer) { tokenizer.ReadToken("("); PointD point = new PointD(readPointCoords(tokenizer)); tokenizer.ReadToken(")"); return point; }
private static Polyline readLineString(WktStreamTokenizer tokenizer) { tokenizer.ReadToken("("); List<ICoordinate> points = readPointCoordsList(tokenizer); if (tokenizer.GetStringValue() == ")") { Polyline polyline = new Polyline(); polyline.Paths.Add(new LinePath()); polyline.Paths[0].Vertices = points; return polyline; } else throwMissingCloseBracket(tokenizer); return null; }
/// <summary> /// Reads a unit. /// </summary> private static IUnit ReadUnit(WktStreamTokenizer tokenizer) { tokenizer.ReadToken("["); string unitName = tokenizer.ReadDoubleQuotedWord(); tokenizer.ReadToken(","); tokenizer.NextToken(); double unitsPerUnit = tokenizer.GetNumericValue(); string authority = String.Empty; long authorityCode = -1; tokenizer.NextToken(); if (tokenizer.GetStringValue() == ",") { //tokenizer.ReadAuthority(ref authority, ref authorityCode); ReadAuthority(tokenizer, ref authority, ref authorityCode); tokenizer.ReadToken("]"); } return new Unit(unitsPerUnit, unitName, authority, authorityCode, String.Empty, String.Empty, String.Empty); }
private static MultiPoint readMultiPoint(WktStreamTokenizer tokenizer) { tokenizer.ReadToken("("); List<ICoordinate> points = new List<ICoordinate>(); while (true) { points.Add(readPoint(tokenizer).Coordinate); tokenizer.NextToken(true); if (tokenizer.GetStringValue() == ",") continue; if (tokenizer.GetStringValue() == ")") break; } if (tokenizer.GetStringValue() == ")") { MultiPoint multiPoint = new MultiPoint(points); return multiPoint; } else throwMissingCloseBracket(tokenizer); return null; }
/// <summary> /// Reads a horizontal datum. /// </summary> private static IHorizontalDatum ReadHorizontalDatum(WktStreamTokenizer tokenizer) { Wgs84ConversionInfo wgsInfo = null; string authority = String.Empty; long authorityCode = -1; tokenizer.ReadToken("["); string name = tokenizer.ReadDoubleQuotedWord(); tokenizer.ReadToken(","); tokenizer.ReadToken("SPHEROID"); IEllipsoid ellipsoid = ReadEllipsoid(tokenizer); tokenizer.NextToken(); while (tokenizer.GetStringValue() == ",") { tokenizer.NextToken(); if (tokenizer.GetStringValue() == "TOWGS84") { wgsInfo = ReadWGS84ConversionInfo(tokenizer); tokenizer.NextToken(); } else if (tokenizer.GetStringValue() == "AUTHORITY") { //tokenizer.ReadAuthority(ref authority, ref authorityCode); ReadAuthority(tokenizer, ref authority, ref authorityCode); tokenizer.ReadToken("]"); } } IHorizontalDatum horizontalDatum = new HorizontalDatum(ellipsoid, wgsInfo, DatumType.HD_Geocentric, name, authority, authorityCode, String.Empty, String.Empty, String.Empty); return horizontalDatum; }
/// <summary> /// Reads an axis info. /// </summary> private static AxisInfo ReadAxis(WktStreamTokenizer tokenizer) { if (tokenizer.GetStringValue() != "AXIS") tokenizer.ReadToken("AXIS"); tokenizer.ReadToken("["); string axisName = tokenizer.ReadDoubleQuotedWord(); tokenizer.ReadToken(","); tokenizer.NextToken(); string unitname = tokenizer.GetStringValue(); tokenizer.ReadToken("]"); switch (unitname.ToUpper(CultureInfo.InvariantCulture)) { case "DOWN": return new AxisInfo(axisName, AxisOrientationEnum.Down); case "EAST": return new AxisInfo(axisName, AxisOrientationEnum.East); case "NORTH": return new AxisInfo(axisName, AxisOrientationEnum.North); case "OTHER": return new AxisInfo(axisName, AxisOrientationEnum.Other); case "SOUTH": return new AxisInfo(axisName, AxisOrientationEnum.South); case "UP": return new AxisInfo(axisName, AxisOrientationEnum.Up); case "WEST": return new AxisInfo(axisName, AxisOrientationEnum.West); default: throw new ArgumentException("Invalid axis name '" + unitname + "' in WKT"); } }
/// <summary> /// Reads a projected coordinate system. /// </summary> private static IProjectedCoordinateSystem ReadProjectedCoordinateSystem(WktStreamTokenizer tokenizer) { tokenizer.ReadToken("["); string name = tokenizer.ReadDoubleQuotedWord(); tokenizer.ReadToken(","); tokenizer.ReadToken("GEOGCS"); IGeographicCoordinateSystem geographicCS = ReadGeographicCoordinateSystem(tokenizer); tokenizer.ReadToken(","); IProjection projection = ReadProjection(tokenizer); IUnit unit = ReadLinearUnit(tokenizer); string authority = String.Empty; long authorityCode = -1; tokenizer.NextToken(); List<AxisInfo> axes = new List<AxisInfo>(2); if (tokenizer.GetStringValue() == ",") { tokenizer.NextToken(); while (tokenizer.GetStringValue() == "AXIS") { axes.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); ReadAuthority(tokenizer, ref authority, ref authorityCode); tokenizer.ReadToken("]"); } } //This is default axis values if not specified. if (axes.Count == 0) { axes.Add(new AxisInfo("X", AxisOrientationEnum.East)); axes.Add(new AxisInfo("Y", AxisOrientationEnum.North)); } IProjectedCoordinateSystem projectedCS = new ProjectedCoordinateSystem(geographicCS.HorizontalDatum, geographicCS, unit as LinearUnit, projection, axes, name, authority, authorityCode, String.Empty, String.Empty, String.Empty); return projectedCS; }
/// <summary> /// Reads a geographic coordinate system. /// </summary> private static IGeographicCoordinateSystem ReadGeographicCoordinateSystem(WktStreamTokenizer tokenizer) { 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); ReadAuthority(tokenizer, ref authority, ref authorityCode); tokenizer.ReadToken("]"); } } // значения по умолчанию для осей 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; }
/// <summary> /// Reads a projection. /// </summary> private static IProjection ReadProjection(WktStreamTokenizer tokenizer) { tokenizer.ReadToken("PROJECTION"); tokenizer.ReadToken("[");//[ string projectionName = tokenizer.ReadDoubleQuotedWord(); tokenizer.ReadToken("]");//] tokenizer.ReadToken(",");//, tokenizer.ReadToken("PARAMETER"); List<ProjectionParameter> paramList = new List<ProjectionParameter>(); while (tokenizer.GetStringValue() == "PARAMETER") { tokenizer.ReadToken("["); string paramName = tokenizer.ReadDoubleQuotedWord(); tokenizer.ReadToken(","); tokenizer.NextToken(); double paramValue = tokenizer.GetNumericValue(); tokenizer.ReadToken("]"); tokenizer.ReadToken(","); paramList.Add(new ProjectionParameter(paramName, paramValue)); tokenizer.NextToken(); } string authority = String.Empty; long authorityCode = -1; IProjection projection = new Projection(projectionName, paramList, projectionName, authority, authorityCode, String.Empty, String.Empty, string.Empty); return projection; }
/* /// <summary> /// /// </summary> /// <param name="tokenizer"></param> /// <returns></returns> private static ICompoundCoordinateSystem ReadCompoundCoordinateSystem(WktStreamTokenizer tokenizer) { //COMPD_CS[ //"OSGB36 / British National Grid + ODN", //PROJCS[] //VERT_CS[] //AUTHORITY["EPSG","7405"] //] tokenizer.ReadToken("["); string name=tokenizer.ReadDoubleQuotedWord(); tokenizer.ReadToken(","); tokenizer.NextToken(); string headCSCode = tokenizer.GetStringValue(); ICoordinateSystem headCS = ReadCoordinateSystem(headCSCode,tokenizer); tokenizer.ReadToken(","); tokenizer.NextToken(); string tailCSCode = tokenizer.GetStringValue(); ICoordinateSystem tailCS = ReadCoordinateSystem(tailCSCode,tokenizer); tokenizer.ReadToken(","); string authority=String.Empty; string authorityCode=String.Empty; tokenizer.ReadAuthority(ref authority, ref authorityCode); tokenizer.ReadToken("]"); ICompoundCoordinateSystem compoundCS = new CompoundCoordinateSystem(headCS,tailCS,String.Empty,authority,authorityCode,name,String.Empty,String.Empty); return compoundCS; }*/ /// <summary> /// Reads an ellipsiod. /// </summary> private static IEllipsoid ReadEllipsoid(WktStreamTokenizer tokenizer) { tokenizer.ReadToken("["); string name = tokenizer.ReadDoubleQuotedWord(); tokenizer.ReadToken(","); tokenizer.NextToken(); double majorAxis = tokenizer.GetNumericValue(); tokenizer.ReadToken(","); tokenizer.NextToken(); double e = tokenizer.GetNumericValue(); //tokenizer.ReadToken(","); tokenizer.NextToken(); string authority = String.Empty; long authorityCode = -1; if (tokenizer.GetStringValue() == ",") //Read authority { //tokenizer.ReadAuthority(ref authority, ref authorityCode); ReadAuthority(tokenizer, ref authority, ref authorityCode); tokenizer.ReadToken("]"); } IEllipsoid ellipsoid = new Ellipsoid(majorAxis, 0.0, e, true, LinearUnit.Metre, name, authority, authorityCode, String.Empty, string.Empty, string.Empty); return ellipsoid; }
/// <summary> /// Reads a WGS84 conversion info. /// </summary> private static Wgs84ConversionInfo ReadWGS84ConversionInfo(WktStreamTokenizer tokenizer) { //TOWGS84[0,0,0,0,0,0,0] tokenizer.ReadToken("["); Wgs84ConversionInfo info = new Wgs84ConversionInfo(); tokenizer.NextToken(); info.Dx = tokenizer.GetNumericValue(); tokenizer.ReadToken(","); tokenizer.NextToken(); info.Dy = tokenizer.GetNumericValue(); tokenizer.ReadToken(","); tokenizer.NextToken(); info.Dz = tokenizer.GetNumericValue(); tokenizer.NextToken(); if (tokenizer.GetStringValue() == ",") { tokenizer.NextToken(); info.Ex = tokenizer.GetNumericValue(); tokenizer.ReadToken(","); tokenizer.NextToken(); info.Ey = tokenizer.GetNumericValue(); tokenizer.ReadToken(","); tokenizer.NextToken(); info.Ez = tokenizer.GetNumericValue(); tokenizer.NextToken(); if (tokenizer.GetStringValue() == ",") { tokenizer.NextToken(); info.Ppm = tokenizer.GetNumericValue(); } } if (tokenizer.GetStringValue() != "]") tokenizer.ReadToken("]"); return info; }
private static Polygon readMultiPolygon(WktStreamTokenizer tokenizer) { tokenizer.ReadToken("("); Polygon polygon = new Polygon(); bool comma = true; while (comma) { tokenizer.ReadToken("("); List<List<ICoordinate>> lists = readPointsCoordLists(tokenizer); if (tokenizer.GetStringValue() == ")") { foreach (List<ICoordinate> list in lists) { Contour contour = new Contour(); list.RemoveAt(list.Count - 1); contour.Vertices = list; polygon.Contours.Add(contour); } } else throwMissingCloseBracket(tokenizer); tokenizer.NextToken(); comma = tokenizer.GetStringValue() == ","; } if (tokenizer.GetStringValue() != ")") throwMissingCloseBracket(tokenizer); return polygon; }
/// <summary> /// Reads a prime meridian. /// </summary> private static IPrimeMeridian ReadPrimeMeridian(WktStreamTokenizer tokenizer) { tokenizer.ReadToken("["); string name = tokenizer.ReadDoubleQuotedWord(); tokenizer.ReadToken(","); tokenizer.NextToken(); double longitude = tokenizer.GetNumericValue(); tokenizer.NextToken(); string authority = String.Empty; long authorityCode = -1; if (tokenizer.GetStringValue() == ",") { ReadAuthority(tokenizer, ref authority, ref authorityCode); tokenizer.ReadToken("]"); } IPrimeMeridian primeMeridian = new PrimeMeridian(longitude, AngularUnit.Degrees, name, authority, authorityCode, String.Empty, String.Empty, String.Empty); return primeMeridian; }
private static List<List<ICoordinate>> readPointsCoordLists(WktStreamTokenizer tokenizer) { List<List<ICoordinate>> result = new List<List<ICoordinate>>(); bool comma = true; while (comma) { tokenizer.ReadToken("("); result.Add(readPointCoordsList(tokenizer)); if (tokenizer.GetStringValue() == ")") { tokenizer.NextToken(); comma = tokenizer.GetStringValue() == ","; } else throwMissingCloseBracket(tokenizer); } return result; }
/// <summary> /// Reads am authority and authority code. /// </summary> private static void ReadAuthority(WktStreamTokenizer tokenizer, ref string authority, ref long authorityCode) { if (tokenizer.GetStringValue() != "AUTHORITY") tokenizer.ReadToken("AUTHORITY"); tokenizer.ReadToken("["); authority = tokenizer.ReadDoubleQuotedWord(); tokenizer.ReadToken(","); #if(!Silverlight) long.TryParse(tokenizer.ReadDoubleQuotedWord(), NumberStyles.Any, CultureInfo.InvariantCulture.NumberFormat, out authorityCode); #else try { authorityCode = long.Parse(tokenizer.ReadDoubleQuotedWord(), System.Globalization.NumberStyles.Any, System.Globalization.CultureInfo.InvariantCulture.NumberFormat); } catch { } #endif tokenizer.ReadToken("]"); }