public static void Write(DICOMBinaryWriter dw, DICOMIOSettings settings, DICOMObject d,
bool isSequenceItem = false)
{
if (!isSequenceItem)
{
TransferSyntaxHelper.SetSyntax(d, settings.TransferSyntax);
}
for (var i = 0; i < d.Elements.Count; i++)
{
var el = d.Elements[i];
var currentSettings = IsFileMetaGroup(el) ? settings.GetFileMetaSettings() : settings;
if (GroupWriter.IsGroupHeader(el))
{
var skip = GroupWriter.WriteGroup(dw, currentSettings, d, el);
i += skip;
}
else
{
_logger.LogInformation($"Writing element ${el.Tag.CompleteID}");
try
{
DICOMElementWriter.Write(dw, currentSettings, el);
}
catch (Exception e)
{
_logger.LogError($"Error writing : ${el.Tag.CompleteID}\n{e}");
throw e;
}
}
}
}
/// <summary>
/// Writes DICOM file out as a file of a specified path
/// </summary>
/// <param name="filePath">the path to which to write the file</param>
/// <param name="settings">the write settings</param>
/// <param name="toWrite">the object to write</param>
public static void Write(string filePath, DICOMIOSettings settings, DICOMObject toWrite)
{
using (var fs = new FileStream(filePath, FileMode.Create))
{
Write(fs, settings, toWrite);
}
}
public static void Write(DICOMBinaryWriter dw, VR vr, DICOMIOSettings settings, int length)
{
var lengthBytes = BitConverter.GetBytes(length);
if (settings.TransferSyntax != TransferSyntax.IMPLICIT_VR_LITTLE_ENDIAN)
{
switch (VRDictionary.GetEncodingFromVR(vr))
{
case VREncoding.ExplicitLong:
dw.WriteNullBytes(2);
lengthBytes = BitConverter.GetBytes(length);
break;
case VREncoding.ExplicitShort:
lengthBytes = BitConverter.GetBytes((ushort)length);
if (length > 65536)
{
throw new ArgumentOutOfRangeException(
"Length is greater than allowed for explicit VR syntax. Try using implicit VR");
}
break;
case VREncoding.Implicit:
lengthBytes = BitConverter.GetBytes(length);
break;
}
}
if (settings.TransferSyntax == TransferSyntax.EXPLICIT_VR_BIG_ENDIAN)
{
Array.Reverse(lengthBytes);
}
dw.Write(lengthBytes);
}
public static void WriteBigEndian(DICOMBinaryWriter dw, VR vr, DICOMIOSettings settings,
IDICOMElement toWrite)
{
var data = DataComposer.GetDataBigEndian(toWrite, settings.StringEncoding);
LengthWriter.Write(dw, vr, settings, data != null ? data.Length : 0);
dw.Write(data != null ? data : new byte[0]);
}
private static void WriteIndefiniteLength(DICOMIOSettings settings, DICOMBinaryWriter dw)
{
if (!(settings.TransferSyntax == TransferSyntax.IMPLICIT_VR_LITTLE_ENDIAN))
{
dw.WriteNullBytes(2);
}
dw.Write(new byte[] { 0xFF, 0xFF, 0xFF, 0xFF });
}
public static void WriteVR(DICOMBinaryWriter dw, DICOMIOSettings settings, VR vr)
{
if (settings.TransferSyntax != TransferSyntax.IMPLICIT_VR_LITTLE_ENDIAN)
{
var abbreviation = VRDictionary.GetAbbreviationFromVR(vr);
dw.Write(abbreviation);
}
}
public static void WriteBigEndian(DICOMBinaryWriter dw, DICOMIOSettings settings, IDICOMElement toWrite)
{
DICOMTagWriter.WriteBigEndian(dw, toWrite.Tag);
var vr = VRDictionary.GetVRFromType(toWrite);
VRWriter.WriteVR(dw, settings, vr);
DataWriter.WriteBigEndian(dw, vr, settings, toWrite);
}
public static void WriteVR(DICOMBinaryWriter dw, DICOMIOSettings settings, IDICOMElement toWrite)
{
if (!(settings.TransferSyntax == TransferSyntax.IMPLICIT_VR_LITTLE_ENDIAN))
{
var vr = VRDictionary.GetVRFromType(toWrite);
var abbreviation = VRDictionary.GetAbbreviationFromVR(vr);
dw.Write(abbreviation);
}
}
/// <summary>
/// Write DICOM file out (bytes) to a specified stream
/// </summary>
/// <param name="stream">the stream to which to write the file</param>
/// <param name="settings">the write settings</param>
/// <param name="toWrite">the object to write</param>
public static void Write(Stream stream, DICOMIOSettings settings, DICOMObject toWrite)
{
settings = settings ?? DICOMIOSettings.Default();
using (var dw = new DICOMBinaryWriter(stream))
{
DICOMPreambleWriter.Write(dw);
TransferSyntaxHelper.SetSyntax(toWrite, settings.TransferSyntax);
DICOMObjectWriter.Write(dw, settings, toWrite);
}
}
public static int WriteGroup(DICOMBinaryWriter dw, DICOMIOSettings settings, DICOMObject d, IDICOMElement el)
{
var groupBytes = WriteGroupBytes(d, settings, el.Tag.Group);
var length = groupBytes.Length;
var ul = el as UnsignedLong;
ul.SetData((uint)length);
DICOMElementWriter.Write(dw, settings, ul);
dw.Write(groupBytes);
return(d.Elements.Where(elm => elm.Tag.Group == ul.Tag.Group).ToList().Count - 1);
}
public static void Write(DICOMBinaryWriter dw, DICOMIOSettings settings, IDICOMElement el)
{
if (settings.TransferSyntax == TransferSyntax.EXPLICIT_VR_BIG_ENDIAN)
{
WriteBigEndian(dw, settings, el);
}
else
{
WriteLittleEndian(dw, settings, el);
}
}
public static void WriteLittleEndian(DICOMBinaryWriter dw, DICOMIOSettings settings, IDICOMElement toWrite)
{
var vr = VRDictionary.GetVRFromType(toWrite);
if (vr == VR.Sequence)
{
SequenceWriter.WriteLittleEndian(dw, settings, toWrite);
}
else
{
DICOMTagWriter.WriteLittleEndian(dw, toWrite.Tag);
VRWriter.WriteVR(dw, settings, vr);
DataWriter.WriteLittleEndian(dw, vr, settings, toWrite);
}
}
public static byte[] WriteItemsLittleEndian(DICOMIOSettings settings, List <DICOMObject> items)
{
byte[] allItemBytes;
using (var stream = new MemoryStream())
{
using (var itemDw = new DICOMBinaryWriter(stream))
{
foreach (var d in items)
{
WriteItemLittleEndian(itemDw, settings, d);
}
}
allItemBytes = stream.ToArray();
}
return(allItemBytes);
}
/// <summary>
/// Ignores the rule of writing metadata in explicit VR little endian and instead writes all elements with the same passed in syntax
/// Used in PData writing
/// </summary>
/// <param name="dw"></param>
/// <param name="settings"></param>
/// <param name="d"></param>
/// <param name="isSequenceItem"></param>
public static void WriteSameSyntax(DICOMBinaryWriter dw, DICOMIOSettings settings, DICOMObject d,
bool isSequenceItem = false)
{
for (var i = 0; i < d.Elements.Count; i++)
{
var el = d.Elements[i];
if (GroupWriter.IsGroupHeader(el))
{
var skip = GroupWriter.WriteGroup(dw, settings, d, el);
i += skip;
}
else
{
DICOMElementWriter.Write(dw, settings, el);
}
}
}
public static void WriteLittleEndian(DICOMBinaryWriter dw, DICOMIOSettings settings, IDICOMElement toWrite)
{
var s = toWrite as Sequence;
DICOMTagWriter.WriteLittleEndian(dw, toWrite.Tag);
VRWriter.WriteVR(dw, settings, VR.Sequence);
if (settings.DoWriteIndefiniteSequences)
{
WriteIndefiniteLength(settings, dw);
SequenceItemWriter.WriteItemsLittleEndian(dw, settings, s.Items);
WriteEndOfSequenceLittleEndian(dw);
}
else
{
var itemsBytes = SequenceItemWriter.WriteItemsLittleEndian(settings, s.Items);
LengthWriter.Write(dw, VR.Sequence, settings, itemsBytes.Length);
dw.Write(itemsBytes);
}
}
public static void WriteItemLittleEndian(DICOMBinaryWriter dw, DICOMIOSettings settings, DICOMObject d)
{
DICOMTagWriter.WriteLittleEndian(dw, TagHelper.Item);
using (var stream = new MemoryStream())
{
using (var itemDw = new DICOMBinaryWriter(stream))
{
DICOMObjectWriter.Write(itemDw, settings, d, true);
if (!settings.DoWriteIndefiniteSequences)
{
LengthWriter.Write(dw, VR.Null, settings, (int)stream.Length);
dw.Write(stream.ToArray());
}
else
{
WriteIndefiniteLittleEndian(dw, stream.ToArray());
}
}
}
}
public static byte[] WriteGroupBytes(DICOMObject d, DICOMIOSettings settings, string groupId)
{
var groupElements = d.Elements.Where(el => el.Tag.Group == groupId).ToList();
byte[] groupBytes;
using (var stream = new MemoryStream())
{
using (var groupDW = new DICOMBinaryWriter(stream))
{
foreach (var el in groupElements)
{
if (!IsGroupHeader(el))
{
DICOMElementWriter.Write(groupDW, settings, el);
}
}
}
groupBytes = stream.ToArray();
}
return(groupBytes);
}
public static void Write(DICOMBinaryWriter dw, DICOMIOSettings settings, DICOMObject d,
bool isSequenceItem = false)
{
if (!isSequenceItem)
{
TransferSyntaxHelper.SetSyntax(d, settings.TransferSyntax);
}
for (var i = 0; i < d.Elements.Count; i++)
{
var el = d.Elements[i];
var currentSettings = IsFileMetaGroup(el) ? settings.GetFileMetaSettings() : settings;
if (GroupWriter.IsGroupHeader(el))
{
var skip = GroupWriter.WriteGroup(dw, currentSettings, d, el);
i += skip;
}
else
{
DICOMElementWriter.Write(dw, currentSettings, el);
}
}
}
public static void WriteItemsLittleEndian(DICOMBinaryWriter dw, DICOMIOSettings settings,
List <DICOMObject> items)
{
dw.Write(WriteItemsLittleEndian(settings, items));
}
