public BeamLimitingDevicePosition()
{
si = new SequenceItem();
//Add blank RTBeamDeviceType
CodeString cs = new CodeString();
cs.Tag.Id = TagHelper.RTBEAM_LIMITING_DEVICE_TYPE;
si.AddObject(cs);
//Add blank Leaf Jaw Positions
DecimalString ds = new DecimalString();
ds.Tag.Id = TagHelper.LEAF_JAW_POSITIONS;
si.AddObject(ds);
}
public static List<SequenceItem> ReadChildren(byte[] data, Boolean isLittleEndian)
{
List<SequenceItem> items = new List<SequenceItem>();
using (BinaryReader r = new BinaryReader(new MemoryStream(data)))
{
while (r.BaseStream.Position < r.BaseStream.Length)
{
SequenceItem si = new SequenceItem();
//Read length past start tag
byte[] dLength = new byte[4];
r.Read(dLength, 0, 4);
r.Read(dLength, 0, 4);
if (ArrayHelper.isEqualArray(dLength, Constants.INDEFINITE_LENGTH))
{
//INDEFINITE LENGTH: Mark current position and find end
si.LengthType = Constants.LengthType.INDEFINITE;
long dataStart = r.BaseStream.Position;
long dataEnd = FindEndOfSequenceItem(r, isLittleEndian);
if (dataEnd == -1)
{
//Didn't find end tag
Console.WriteLine("Could not find sequence item end tag while decoding sequence items in sequence");
return null;
}
else
{
//Read dicomObject from dataStart to dataEnd
r.BaseStream.Position = dataStart;
while (r.BaseStream.Position < dataEnd)
{
si.AddObject(DICOMReader.ReadSequenceItem(r, isLittleEndian));
}
}
}
else
{
//Read dicomObject from current position to end of length
si.LengthType = Constants.LengthType.FINITE;
int objectsLength = BitConverter.ToInt32(dLength, 0);
if (!isLittleEndian) { objectsLength = BitConverter.ToInt32(ArrayHelper.ReverseArray(dLength), 0); }
int dataEnd = (int)r.BaseStream.Position + objectsLength;
while (r.BaseStream.Position < dataEnd)
{
si.AddObject(DICOMReader.ReadObject(r, isLittleEndian));
}
}
items.Add(si);
}
return items;
}
}