Vr Property (original) (raw)
Summary
Gets a value representation of the DICOM element that is about to be added to the DicomDataSet.
Syntax
Property Value
The value representation DicomVR of the DICOM element that is about to be added to the DicomDataSet.
Remarks
Modifying Vr changes the value representation DicomVR of the DICOM element that is added to the DicomDataSet.
Example
using Leadtools.Dicom;
using Leadtools.Dicom.Common;
using Leadtools.Dicom.Common.Extensions;
using Leadtools;
using Leadtools.Dicom.Common.Linq.BasicDirectory;
using Leadtools.Dicom.Common.DataTypes;
using Leadtools.Codecs;
public void LoadJsonCallbackExample()
{
string dicomFileNameIn = Path.Combine(LEAD_VARS.ImagesDir,"DICOM", "image2.dcm");
string jsonFileNameOut = Path.Combine(LEAD_VARS.ImagesDir, "test.json");
string dicomFileNameOut = Path.Combine(LEAD_VARS.ImagesDir, "test.dcm");
// Initialize DICOM engine
DicomEngine.Startup();
DicomDataSet ds = new DicomDataSet();
// Load an existing DICOM file
ds.Load(dicomFileNameIn, DicomDataSetLoadFlags.None);
// Save as JSON to a file with no binary data
// For the demo, keep the json output file size small by skipping the pixel data
// Use the SaveJsonCallback delegate to customize the json file
DicomDataSetSaveJsonFlags jsonFlags =
DicomDataSetSaveJsonFlags.IgnoreBinaryData |
DicomDataSetSaveJsonFlags.TrimWhiteSpace;
ds.SaveJson(jsonFileNameOut, jsonFlags);
// Use a LoadmlCallback to read the customized json file
ds.LoadJson(jsonFileNameOut, DicomDataSetLoadJsonFlags.None, MyLoadJsonBeforeElementCallback, MyLoadJsonAfterElementCallback);
// Save the result -- there will be no pixel data
ds.Save(dicomFileNameOut, DicomDataSetSaveFlags.None);
DicomEngine.Shutdown();
}
private static bool MyLoadJsonBeforeElementCallback(LoadJsonBeforeElementData data)
{
// Remove Patient Birth Date
if (data.Tag == DicomTag.PatientBirthDate)
{
return false;
}
// Change the patient name
if (data.Tag == DicomTag.PatientName)
{
data.ElementValue = "NewLast^NewFirst";
}
// Write the elements to the consolee that have child elements
if (data.HasChildElements)
{
Console.WriteLine("Element {0} has child elements.", data.Tag);
}
return true;
}
private static void MyLoadJsonAfterElementCallback(LoadJsonAfterElementData data)
{
if (data.DicomElement.Tag == DicomTag.PixelData)
{
// here you could call one of the following to set the pixel data
// data.DicomDataSet.SetBinaryValue
// data.DicomDataSet.SetImage()
}
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
Requirements
See Also
Leadtools.Dicom.Common.Extensions Namespace
Leadtools.Dicom.Common Assembly