SaveJsonCallback Delegate (original) (raw)
Summary
Optional delegate method that is used with the SaveJson methods.
Syntax
Parameters
data
An instance of the SaveJsonData interface containing the progress callback data.
Return Value
true to write this DICOM element in the output JSON file; false to skip writing this element in the output JSON file
Example
This example loads a sample DICOM file, and saves the contents as a JSON file. The JSON file output is customized by using the SaveJsonCallback delegate to assign a BulkDataUri.
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 SaveJsonCallbackExample()
{
uriIndex = 0;
string dicomFileNameIn = Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "IMAGE3.dcm");
string xmlFileNameOut = Path.Combine(LEAD_VARS.ImagesDir, "test.json");
DicomEngine.Startup();
DicomDataSet ds = new DicomDataSet();
// Load an existing DICOM file
ds.Load(dicomFileNameIn, DicomDataSetLoadFlags.None);
// Keep the JSON output file size small by writing binary data as BulkDataUri
// The URI written is modified in the callback
ds.SaveJson(xmlFileNameOut, DicomDataSetSaveJsonFlags.BulkDataUri, MySaveJsonCallback);
DicomEngine.Shutdown();
}
public static int uriIndex = 0;
public static string GenerateUri()
{
uriIndex++;
return string.Format(@"http://MySampleUri/{0}", uriIndex);
}
public static bool MySaveJsonCallback(SaveJsonData d)
{
if (d.DicomElement == null)
return true;
DicomVRType vr = d.DicomElement.VR;
bool isBinary = (
vr == DicomVRType.OB ||
vr == DicomVRType.OD ||
vr == DicomVRType.OF ||
vr == DicomVRType.OW ||
vr == DicomVRType.UN
);
if (isBinary)
{
// Set a URI
d.BulkDataUri = GenerateUri();
}
return true;
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
See Also
Reference
SaveJsonCallback Members
Leadtools.Dicom.Common.Extensions Namespace
SaveJson(DicomDataSet,String,DicomDataSetSaveJsonFlags,SaveJsonCallback) Method
SaveJson(DicomDataSet,Stream,DicomDataSetSaveJsonFlags,SaveJsonCallback) Method
SaveJson(DicomDataSet,String,DicomDataSetSaveJsonFlags) Method
SaveJson(DicomDataSet,Stream,DicomDataSetSaveJsonFlags) Method
SaveJsonCallback Delegate
Leadtools.Dicom.Common Assembly