//public static object GetPageDicomData(DicomDataSet ds)
//{
// MedicalViewerPageInfo output = null;
// output = new MedicalViewerPageInfo();
// fillOutputWithDicomDataSet(output, ds);
// output.Pages = GetPagesPresentationInfo(ds, output, 1);
// return output;
//}
public static void GetPage(string pdiInstancePath, string pyramidFileName, string sopInstanceUid, object pageInfo)
{
MedicalViewerPageInfo output = pageInfo as MedicalViewerPageInfo;
if (output == null)
{
return;
}
if (!string.IsNullOrEmpty(pyramidFileName))
{
//var cat = PyramidImage.GetCatalouge(pyramidFileName, null);
//if (cat != null)
//{
// output.TileSize = cat.TileSize;
// output.ImageUri = GetImageURI(sopInstanceUid);
// {
// var res = new List<LeadSize>();
// foreach (var r in cat.Resolutions)
// res.Add(r);
// output.Resolutions = res.ToArray();
// }
//}
}
SaveMeta(pdiInstancePath, output);
}
static List <MedicalViewerPageInfo> GetPagesInfoFromMaster(DicomDataSet ds, MedicalViewerPageInfo ppiMaster)
{
try
{
List <MedicalViewerPageInfo> ppiLst = new List <MedicalViewerPageInfo>();
DicomElement elemPerFrameFunctionalGroupsSequence = ds.FindFirstElement(null, DicomTag.PerFrameFunctionalGroupsSequence, true);
List <DicomElement> elemImagePositionPatient = new List <DicomElement>();
FindChildElements(ds, elemPerFrameFunctionalGroupsSequence, DicomTag.ImagePositionPatient, elemImagePositionPatient);
foreach (DicomElement de in elemImagePositionPatient)
{
MedicalViewerPageInfo ppi = new MedicalViewerPageInfo
{
ImageOrientationPatientArray = ppiMaster.ImageOrientationPatientArray,
ImagePositionPatientArray = ds.GetDoubleValue(de, 0, 3),
PixelSpacingPatientArray = ppiMaster.PixelSpacingPatientArray
};
Normalize(ppi);
ppiLst.Add(ppi);
}
return(ppiLst);
}
catch
{
return(new List <MedicalViewerPageInfo>());
}
}
static MedicalViewerPageInfo[] GetPagesPresentationInfo(DicomDataSet ds, MedicalViewerPageInfo ppiMaster, int DefTotalPages)
{
int nFrames = DefTotalPages;
DicomElement elemNumberOfFrames = ds.FindFirstElement(null, DicomTag.NumberOfFrames, true);
string path = ExtractPDFData(ds);
if (!string.IsNullOrEmpty(path))
{
using (RasterCodecs codecs = new RasterCodecs())
{
using (CodecsImageInfo info = codecs.GetInformation(path, true))
{
nFrames = info.TotalPages;
}
}
}
else
if (null != elemNumberOfFrames)
{
int[] nFramesList = ds.GetIntValue(elemNumberOfFrames, 0, 1);
nFrames = Math.Max(nFrames, nFramesList[0]);
}
List <MedicalViewerPageInfo> PagePresentationInfoLstFromDS = GetPagesInfoFromMaster(ds, ppiMaster);
List <MedicalViewerPageInfo> PagePresentationInfoLst = new List <MedicalViewerPageInfo>();
for (int nIndex = 0; nIndex < nFrames; nIndex++)
{
if (nIndex < PagePresentationInfoLstFromDS.Count)
{
PagePresentationInfoLst.Add(PagePresentationInfoLstFromDS[nIndex]);
}
else
{
PagePresentationInfoLst.Add(null);
}
}
return(PagePresentationInfoLst.ToArray());
}
static void Normalize(MedicalViewerPageInfo presentation)
{
if (null != presentation.ImagePositionPatientArray)
{
if (presentation.ImagePositionPatientArray.Length == 0)
{
presentation.ImagePositionPatientArray = null;
}
}
if (null != presentation.ImageOrientationPatientArray)
{
if (presentation.ImageOrientationPatientArray.Length == 0)
{
presentation.ImageOrientationPatientArray = null;
}
}
if (null != presentation.PixelSpacingPatientArray)
{
if (presentation.PixelSpacingPatientArray.Length == 0)
{
presentation.PixelSpacingPatientArray = null;
}
}
}
static void fillOutputWithDicomDataSet(MedicalViewerPageInfo output, DicomDataSet ds)
{
DicomElement elemImagePatientOrientation = ds.FindFirstElement(null, DicomTag.PatientOrientation, true);
DicomElement elemImagePositionPatient = ds.FindFirstElement(null, DicomTag.ImagePositionPatient, true);
DicomElement elemImageOrientationPatient = ds.FindFirstElement(null, DicomTag.ImageOrientationPatient, true);
DicomElement elemImagerPixelSpacing = ds.FindFirstElement(null, DicomTag.ImagerPixelSpacing, true);
DicomElement elemPixelSpacing = ds.FindFirstElement(null, DicomTag.PixelSpacing, true);
DicomElement elemPhotometricInterpretation = ds.FindFirstElement(null, DicomTag.PhotometricInterpretation, true);
if (null != elemPhotometricInterpretation)
{
string photometricInterpretation = ds.GetStringValue(elemPhotometricInterpretation, 0);
output.SupportWindowLevel = photometricInterpretation == "MONOCHROME2" || photometricInterpretation == "MONOCHROME1";
}
if (null != elemImagePatientOrientation)
{
int count = ds.GetElementValueCount(elemImagePatientOrientation);
if (count > 0)
{
output.PatientOrientation = new string[count];
for (int index = 0; index < count; index++)
{
output.PatientOrientation[index] = ds.GetStringValue(elemImagePatientOrientation, index);
}
}
}
if (null != elemImagePositionPatient)
{
output.ImagePositionPatientArray = ds.GetDoubleValue(elemImagePositionPatient, 0, 3);
if (output.ImagePositionPatientArray.Length == 0)
{
output.ImagePositionPatientArray = null;
}
}
if (null != elemImageOrientationPatient)
{
output.ImageOrientationPatientArray = ds.GetDoubleValue(elemImageOrientationPatient, 0, 6);
if (output.ImageOrientationPatientArray.Length == 0)
{
output.ImageOrientationPatientArray = null;
}
}
if (null != elemPixelSpacing)
{
output.PixelSpacingPatientArray = ds.GetDoubleValue(elemPixelSpacing, 0, 2);
if (output.PixelSpacingPatientArray.Length == 0)
{
output.PixelSpacingPatientArray = null;
}
}
else if (null != elemImagerPixelSpacing)
{
output.PixelSpacingPatientArray = ds.GetDoubleValue(elemImagerPixelSpacing, 0, 2);
if (output.PixelSpacingPatientArray.Length == 0)
{
output.PixelSpacingPatientArray = null;
}
}
}
