Write(IEnumerable<Byte[]>,String,Int32) Method

In This Topic

Writes dataset to an an enumerable byte arrays with specified transfer syntax and byte array length. This is useful if you want to have byte arrays for large data. FileStream or something similar would be preferable than holding everything in memory.

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Sub Write( _
   ByRef arrays As System.Collections.Generic.IEnumerable(Of Byte()), _
   ByVal TransferSyntax As System.String, _
   Optional ByVal pagedBufferSize As System.Integer _
)

public void Write( 
   out System.Collections.Generic.IEnumerable<byte[]> arrays,
   System.string TransferSyntax,
   System.int pagedBufferSize
)

Parameters

arrays: Collection of byte arrays to write large dataset to
TransferSyntax: Specifies the full UID of the transfer syntax with which the file is to be saved when Part 10 format is used. If omitted, the little-endian explicit VR transfer syntax is used.
pagedBufferSize: Size of each individual buffers in the collection

Remarks

Data may subsequently be read by the Read method or by other DICOM software.

Example

DicomDataSet ds = new DicomDataSet();       
string filename = "Output_Dataset.dcm";
string transferSyntax = TransferSyntaxes.ExplicitVRLittleEndian;      
int pagedBufferSize = 65535;
                    
string pixelTransferSyntax = TransferSyntaxes.ExplicitVRLittleEndian;
ds.Add(Keyword.SamplesPerPixel, 1);
ds.Add(Keyword.PhotometricInterpretation, "MONOCHROME2");
ds.Add(Keyword.Rows, 512);
ds.Add(Keyword.Columns, 512);
ds.Add(Keyword.PixelSpacing, new float[] { 0.684f, 0.684f });
ds.Add(Keyword.BitsAllocated, 16);
ds.Add(Keyword.BitsStored, 12);
ds.Add(Keyword.HighBit, 11);
ds.Add(Keyword.PixelRepresentation, 0);
ds.Add(Keyword.WindowCenter, new int[] { 35, 50 });
ds.Add(Keyword.WindowWidth, new int[] { 350, 150 });
ds.Add(Keyword.RescaleIntercept, -1200);
ds.Add(Keyword.RescaleSlope, 1);
ds.SetPixelData(pixelTransferSyntax, getData);   
                    
ds.Write(out IEnumerable<byte[]> chunks, transferSyntax, pagedBufferSize);
            
using (FileStream fs = new FileStream("Output_Dataset.dcm", FileMode.Create, FileAccess.Write))
{
    foreach (var chunk in chunks)
        fs.Write(chunk, 0, chunk.Length);
}
                    
// Method
private Stream getData(int arg)
{
    return new FileStream("pixel.data", FileMode.Open, FileAccess.Read, FileShare.Read);
}

Requirements

Target Platforms: .NET CLR 4.8 or higher

Reference

DicomDataSet Class
DicomDataSet Members
Overload List

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