internal static ShapeContent ReadAnonymousPolyLineMGeometry(BinaryReader reader)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
IEnumerable <byte> content = EndianBitConverter
.GetLittleEndianBytes((int)ShapeType.PolyLineM)
.Concat(reader.ReadBytes(BoundingBoxByteLength.ToInt32()));
var numberOfPartsAsBytes = reader.ReadBytes(4);
var numberOfParts = EndianBitConverter.ToInt32LittleEndian(numberOfPartsAsBytes);
var numberOfPointsAsBytes = reader.ReadBytes(4);
var numberOfPoints = EndianBitConverter.ToInt32LittleEndian(numberOfPointsAsBytes);
content = content
.Concat(numberOfPartsAsBytes)
.Concat(numberOfPointsAsBytes)
.Concat(reader.ReadBytes(numberOfParts * 4))
.Concat(reader.ReadBytes(numberOfPoints * 16));
if (reader.BaseStream.CanSeek && reader.BaseStream.Position != reader.BaseStream.Length)
{
content = content
.Concat(reader.ReadBytes(MeasureRangeByteLength.ToInt32()))
.Concat(reader.ReadBytes(numberOfPoints * 8));
} //else try-catch-EndOfStreamException?? or only support seekable streams?
return(new AnonymousShapeContent(ShapeType.PolyLineM, content.ToArray()));
}
public static ShapeContent ReadAnonymous(BinaryReader reader)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
var shapeTypeAsBytes = reader.ReadBytes(4);
var shapeType = EndianBitConverter.ToInt32LittleEndian(shapeTypeAsBytes);
if (!Enum.IsDefined(typeof(ShapeType), shapeType))
{
throw new ShapeRecordContentException("The Shape Type field does not contain a known type of shape.");
}
var content = NullShapeContent.Instance;
switch ((ShapeType)shapeType)
{
case ShapeType.NullShape:
break;
case ShapeType.Point:
content = PointShapeContent.ReadAnonymousPointGeometry(reader);
break;
case ShapeType.PolyLineM:
content = PolyLineMShapeContent.ReadAnonymousPolyLineMGeometry(reader);
break;
default:
throw new ShapeRecordContentException($"The Shape Type {shapeType} is currently not suppported.");
}
return(content);
}