/// <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)) + ")");
}
