/// <summary> /// Parses the specified <paramref name="input"/> string into an instance of <see cref="WktGeometry"/>. /// </summary> /// <param name="input">The input string to parse.</param> /// <returns>An instance of <see cref="WktGeometry"/>.</returns> /// <exception cref="ArgumentNullException"><paramref name="input"/> is <c>null</c>.</exception> /// <exception cref="WktInvalidFormatException"><paramref name="input"/> is not in a known format.</exception> /// <exception cref="WktUnsupportedTypeException">type of <paramref name="input"/> is not supported.</exception> public static WktGeometry Parse(string input) { if (string.IsNullOrWhiteSpace(input)) { throw new ArgumentNullException(nameof(input)); } string type = input.Split('(')[0].ToUpper().Trim(); if (string.IsNullOrWhiteSpace(type)) { throw new WktInvalidFormatException(input); } switch (type) { case "POINT": return(WktPoint.Parse(input)); case "POLYGON": return(WktPolygon.Parse(input)); case "LINESTRING": return(WktLineString.Parse(input)); case "MULTIPOINT": return(WktMultiPoint.Parse(input)); case "MULTILINESTRING": return(WktMultiLineString.Parse(input)); case "MULTIPOLYGON": return(WktMultiPolygon.Parse(input)); default: throw new WktUnsupportedTypeException(type); } }
/// <summary> /// Returns the <strong>Well Known Text</strong> string representation of the specified <paramref name="lineString"/>. /// </summary> /// <param name="lineString">The line string to be converted.</param> /// <param name="formatting">The formatting to be used.</param> /// <param name="indentation">The indendatation to be used.</param> /// <returns>The line string formatted as a <strong>Well Known Text</strong> string.</returns> protected string ToString(WktLineString lineString, WktFormatting formatting, int indentation) { if (formatting == WktFormatting.Indented) { throw new NotImplementedException("Indented formatting is currently not supported"); } return("(" + string.Join(formatting == WktFormatting.Indented ? "," : ", ", from point in lineString select string.Format(CultureInfo.InvariantCulture, "{0} {1}", point.X, point.Y)) + ")"); }