private static void ProcessOverlays(DicomDataset input, DicomDataset output)
{
var overlays = DicomOverlayData.FromDataset(input);
foreach (var overlay in overlays)
{
var dataTag = new DicomTag(overlay.Group, DicomTag.OverlayData.Element);
// don't run conversion on non-embedded overlays
if (output.Contains(dataTag))
{
continue;
}
output.Add(new DicomTag(overlay.Group, DicomTag.OverlayBitsAllocated.Element), (ushort)1);
output.Add(new DicomTag(overlay.Group, DicomTag.OverlayBitPosition.Element), (ushort)0);
var data = overlay.Data;
if (output.InternalTransferSyntax.IsExplicitVR)
{
output.Add(new DicomOtherByte(dataTag, data));
}
else
{
output.Add(new DicomOtherWord(dataTag, data));
}
}
}
private static void ProcessOverlays(DicomDataset input, DicomDataset output)
{
var overlays = DicomOverlayData.FromDataset(input.InternalTransferSyntax.IsEncapsulated ? output : input);
foreach (var overlay in overlays)
{
var dataTag = new DicomTag(overlay.Group, DicomTag.OverlayData.Element);
// Don't run conversion on non-embedded overlays.
if (output.Contains(dataTag))
{
continue;
}
// If embedded overlay, Overlay Bits Allocated should equal Bits Allocated (#110).
var bitsAlloc = output.Get(DicomTag.BitsAllocated, (ushort)0);
output.AddOrUpdate(new DicomTag(overlay.Group, DicomTag.OverlayBitsAllocated.Element), bitsAlloc);
var data = overlay.Data;
if (output.InternalTransferSyntax.IsExplicitVR)
{
output.AddOrUpdate(new DicomOtherByte(dataTag, data));
}
else
{
output.AddOrUpdate(new DicomOtherWord(dataTag, data));
}
}
}
public void OverlayTypeGetter_TypeNotSet_ShouldThrow()
{
const ushort group = 0x6008;
var dataset = new DicomDataset();
var od = new DicomOverlayData(dataset, group);
var exception = Record.Exception(() => od.Type);
Assert.NotNull(exception);
}
public void OverlayTypeGetter_TypeSetToOtherThanRAndG_ShouldThrow()
{
const ushort group = 0x6001;
var dataset = new DicomDataset();
var od = new DicomOverlayData(dataset, group);
dataset.AddOrUpdate(new DicomTag(group, 0x0040), "O");
var exception = Record.Exception(() => od.Type);
Assert.NotNull(exception);
}
public void OriginYGetter_ReturnsValueAtIndex0()
{
const int expected = 42;
const ushort group = 0x6012;
var dataset = new DicomDataset();
var od = new DicomOverlayData(dataset, group);
dataset.AddOrUpdate(new DicomTag(group, 0x0050), "42", "0");
var actual = od.OriginY;
Assert.Equal(expected, actual);
}
public void OverlayTypeGetter_TypeSetToR_ReturnsROI()
{
const DicomOverlayType expected = DicomOverlayType.ROI;
const ushort group = 0x6012;
var dataset = new DicomDataset();
var od = new DicomOverlayData(dataset, group);
dataset.AddOrUpdate(new DicomTag(group, 0x0040), "R");
var actual = od.Type;
Assert.Equal(expected, actual);
}
public void OverlayTypeSetter_SetToROI_ReturnsR()
{
const string expected = "R";
const ushort group = 0x6011;
var dataset = new DicomDataset();
_ = new DicomOverlayData(dataset, group)
{
Type = DicomOverlayType.ROI
};
var actual = dataset.GetString(new DicomTag(group, 0x0040));
Assert.Equal(expected, actual);
}
public void Constructor_GroupSpecified_GroupTransferredToLabel()
{
const string expected = "Label 6003";
const ushort group = 0x6003;
var dataset = new DicomDataset();
_ = new DicomOverlayData(dataset, group)
{
Label = expected
};
var actual = dataset.GetString(new DicomTag(group, 0x1500));
Assert.Equal(expected, actual);
}
public void Constructor_GroupSpecified_GroupTransferredToSubtype()
{
const string expected = "Subtype 6005";
const ushort group = 0x6005;
var dataset = new DicomDataset();
_ = new DicomOverlayData(dataset, group)
{
Subtype = expected
};
var actual = dataset.GetString(new DicomTag(group, 0x0045));
Assert.Equal(expected, actual);
}
public void OriginYSetter_ReturnsValueAtIndex0()
{
const int expected = 96;
const ushort group = 0x6012;
var dataset = new DicomDataset();
_ = new DicomOverlayData(dataset, group)
{
OriginY = expected
};
int originY = dataset.GetValueOrDefault <short>(new DicomTag(group, 0x0050), 0, 1);
Assert.Equal(expected, originY);
}
public void Constructor_GroupSpecified_GroupTransferredToDescription()
{
const string expected = "Description 6002";
const ushort group = 0x6002;
var dataset = new DicomDataset();
_ = new DicomOverlayData(dataset, group)
{
Description = expected
};
var actual = dataset.GetString(new DicomTag(group, 0x0022));
Assert.Equal(expected, actual);
}
public static DicomDataset ExtractOverlays(DicomDataset dataset)
{
if (!DicomOverlayData.HasEmbeddedOverlays(dataset))
{
return(dataset);
}
dataset = dataset.Clone();
var input = dataset;
if (input.InternalTransferSyntax.IsEncapsulated)
{
input = input.ChangeTransferSyntax(DicomTransferSyntax.ExplicitVRLittleEndian);
}
ProcessOverlays(input, dataset);
return(dataset);
}
/// <summary>
/// Create <see cref="SingleBitPixelData"/> form <see cref="DicomOverlayData"/>
/// according to the input <paramref name="overlayData"/>
/// </summary>
/// <param name="overlayData">The input overlay data</param>
/// <returns>The result overlay stored in <seealso cref="SingleBitPixelData"/></returns>
public static SingleBitPixelData Create(DicomOverlayData overlayData)
{
return new SingleBitPixelData(overlayData.Columns, overlayData.Rows, overlayData.Data);
}
/// <summary>
/// Create <see cref="SingleBitPixelData"/> form <see cref="DicomOverlayData"/>
/// according to the input <paramref name="overlayData"/>
/// </summary>
/// <param name="overlayData">The input overlay data</param>
/// <returns>The result overlay stored in <seealso cref="SingleBitPixelData"/></returns>
public static SingleBitPixelData Create(DicomOverlayData overlayData)
{
return new SingleBitPixelData(overlayData.Columns, overlayData.Rows, overlayData.Data);
}
