public object this[string index] {
get {
if (_dataset == null)
{
return(String.Empty);
}
DicomTag tag = null;
if (!_map.TryGetValue(index, out tag))
{
tag = DicomTag.Parse(index);
}
if (tag != null)
{
DcmElement elem = _dataset.GetElement(tag);
if (elem.Length == 0)
{
return(String.Empty);
}
if (elem != null)
{
object o = elem.GetValueObject();
#if !SILVERLIGHT
if (_xmlEscape && o is string)
{
return(SecurityElement.Escape((string)o));
}
else
#endif
return(o);
}
}
return(String.Empty);
}
}
private void Load(DcmDataset ds)
{
_rows = ds.GetUInt16(OverlayTag(DicomTags.OverlayRows), 0);
_columns = ds.GetUInt16(OverlayTag(DicomTags.OverlayColumns), 0);
_type = ds.GetString(OverlayTag(DicomTags.OverlayType), "Unknown");
DicomTag tag = OverlayTag(DicomTags.OverlayOrigin);
if (ds.Contains(tag))
{
short[] xy = ds.GetSS(tag).GetValues();
if (xy != null && xy.Length == 2)
{
_originX = xy[0];
_originY = xy[1];
}
}
_bitsAllocated = ds.GetUInt16(OverlayTag(DicomTags.OverlayBitsAllocated), 1);
_bitPosition = ds.GetUInt16(OverlayTag(DicomTags.OverlayBitPosition), 0);
tag = OverlayTag(DicomTags.OverlayData);
if (ds.Contains(tag))
{
DcmElement elem = ds.GetElement(tag);
_data = elem.ByteBuffer.ToBytes();
}
_description = ds.GetString(OverlayTag(DicomTags.OverlayDescription), String.Empty);
_subtype = ds.GetString(OverlayTag(DicomTags.OverlaySubtype), String.Empty);
_label = ds.GetString(OverlayTag(DicomTags.OverlayLabel), String.Empty);
_frames = ds.GetInt32(OverlayTag(DicomTags.NumberOfFramesInOverlay), 1);
_frameOrigin = ds.GetUInt16(OverlayTag(DicomTags.ImageFrameOrigin), 1);
//TODO: include ROI
}