/// <summary>
/// Creates a <see cref="PixelAspectRatio"/> object from a dicom multi-valued string.
/// </summary>
/// <returns>
/// Null if there are not exactly 2 parsed values in the input string.
/// </returns>
public static PixelAspectRatio FromString(string multiValuedString)
{
int[] values;
if (DicomStringHelper.TryGetIntArray(multiValuedString, out values) && values.Length == 2)
{
return(new PixelAspectRatio(values[0], values[1]));
}
return(null);
}
/// <summary>
/// Deserializes the key object selection SOP instance into a list of constituent images and associated presentation states.
/// </summary>
public IList <IKeyObjectContentItem> Deserialize()
{
List <IKeyObjectContentItem> contentItems = new List <IKeyObjectContentItem>();
SrDocumentContentModuleIod srDocument = _document.SrDocumentContent;
if (srDocument.ContentSequence != null)
{
foreach (IContentSequence contentItem in srDocument.ContentSequence.Where(contentItem => contentItem.RelationshipType == RelationshipType.Contains))
{
if (contentItem.ValueType == ValueType.Image)
{
IImageReferenceMacro imageReference = contentItem;
if (imageReference.ReferencedSopSequence == null)
{
Platform.Log(LogLevel.Warn, "Invalid Key Object Selection document has no Referenced SOP Sequence.");
continue;
}
string referencedSopInstanceUid = imageReference.ReferencedSopSequence.ReferencedSopInstanceUid;
string presentationStateSopInstanceUid = null;
if (imageReference.ReferencedSopSequence.ReferencedSopSequence != null)
{
presentationStateSopInstanceUid = imageReference.ReferencedSopSequence.ReferencedSopSequence.ReferencedSopInstanceUid;
}
string referencedFrameNumbers = imageReference.ReferencedSopSequence.ReferencedFrameNumber;
int[] frameNumbers;
if (!string.IsNullOrEmpty(referencedFrameNumbers) &&
DicomStringHelper.TryGetIntArray(referencedFrameNumbers, out frameNumbers) && frameNumbers.Length > 0)
{
foreach (int frameNumber in frameNumbers)
{
KeyImageContentItem item = new KeyImageContentItem(referencedSopInstanceUid, frameNumber, presentationStateSopInstanceUid, _document);
contentItems.Add(item);
}
}
else
{
KeyImageContentItem item = new KeyImageContentItem(referencedSopInstanceUid, presentationStateSopInstanceUid, _document);
contentItems.Add(item);
}
}
}
}
else
{
Platform.Log(LogLevel.Warn, "Invalid Key Object Selection document has no Content Sequence.");
}
return(contentItems.AsReadOnly());
}
/// <summary>
/// Returns a delegate that will get the value of <paramref name="dicomTag"/> (all positions),
/// from an <see cref="ImageSop"/> as an array of <see cref="int"/>s.
/// </summary>
public static FrameDataRetrieverDelegate<int[]> GetIntArrayRetriever(uint dicomTag)
{
return delegate(Frame frame)
{
string value;
value = frame[dicomTag].ToString();
int[] values;
if (!DicomStringHelper.TryGetIntArray(value ?? "", out values))
values = new int[]{};
return values;
};
}
public void TestIntArrayConverter()
{
string input = null;
int[] output;
DicomStringHelper.TryGetIntArray(input, out output);
Assert.AreEqual(output.Length, 0);
input = "";
DicomStringHelper.TryGetIntArray(input, out output);
Assert.AreEqual(output.Length, 0);
input = @"0\1\30";
DicomStringHelper.TryGetIntArray(input, out output);
Assert.AreEqual(output[0], 0);
Assert.AreEqual(output[1], 1);
Assert.AreEqual(output[2], 30);
}