FromAnnObjectToDataSet Method

Converts a LEAD Annotation object into one or more DICOM annotation objects, and adds the new DICOM annotation objects into the dataset.
public void FromAnnObjectToDataSet( 
   DicomDataSet ds, 
   AnnObject annObject, 
   DicomElement graphicAnnSqItem 
Public Sub FromAnnObjectToDataSet( _ 
   ByVal ds As DicomDataSet, _ 
   ByVal annObject As AnnObject, _ 
   ByVal graphicAnnSqItem As DicomElement _ 
void FromAnnObjectToDataSet(  
   DicomDataSet^ ds, 
   AnnObject^ annObject, 
   DicomElement^ graphicAnnSqItem 


The Leadtools.Dicom.DicomDataSet where the annotation objects will be added.

The LEAD annotation object that is being converted.

Pointer to an item element under the "Graphic Annotation Sequence" (0070,0001) in the "Graphic Annotation Module". The resulting DICOM annotation objects will be added to the dataset under the item this parameter points to.


This function will automatically add the resulting DICOM annotation objects into the ds.

If the resulting DICOM annotation object is a "Compound Graphic " then it will be added under the "Compound Graphic Sequence" under the item the graphicAnnSqItem points to, and for backward compatibility (as per the DICOM Specification) it will also be added under the "Graphic Object Sequence".

If the resulting DICOM annotation object is a "Text Object" then it will be added under the "Text Object Sequence" under the item pointed to by graphicAnnSqItem.

If the resulting DICOM annotation object is a "Graphic Object" then it will be added under the "Graphic Object Sequence" under the item pointed to by graphicAnnSqItem.


This example does the following:

  1. Creates a LEAD Leadtools.Annotations.Engine.AnnProtractorObject
  2. Creates a converter
  3. Converts the LEAD Leadtools.Annotations.Engine.AnnProtractorObject to two grouped Leadtools.Dicom.DicomAnnotationObject, and stores in a Leadtools.Dicom.DicomDataSet
using Leadtools; 
using Leadtools.Dicom; 
using Leadtools.Dicom.Annotations; 
using Leadtools.Annotations; 
using Leadtools.Annotations.Engine; 
private void DicomAnnotationsUtilities_FromAnnObjectToDataSet(string fileOut) 
   // Set up the DicomAnnotationsUtilities converter 
   DicomAnnotationsUtilities du = new DicomAnnotationsUtilities(); 
   du.ImageDpiX = 96.0; 
   du.ImageDpiY = 96.0; 
   du.DisplayWidth = 200; 
   du.DisplayHeight = 200; 
   du.LayerName = "Layer 0"; 
   du.CompoundGraphicInstanceId = 100; 
   du.GraphicGroupId = 123; 
   // Create a protractor object 
   AnnProtractorObject protractor = new AnnProtractorObject(); 
   protractor.AngularUnit = AnnAngularUnit.Degree; 
   protractor.Stroke.Stroke = AnnSolidColorBrush.Create("green"); 
   protractor.Points.Add(CreateLeadPointD(100, 300)); 
   protractor.Points.Add(CreateLeadPointD(200, 400)); 
   protractor.Points.Add(CreateLeadPointD(300, 300)); 
   // Create a DicomDataSet 
   DicomDataSet dsPS = new DicomDataSet(); 
   dsPS.Initialize(DicomClassType.GrayscaleSoftcopyPresentationState, DicomDataSetInitializeFlags.AddMandatoryModulesOnly | DicomDataSetInitializeFlags.AddMandatoryElementsOnly); 
   // DicomElement graphicAnnSequenceItem = dsPS.FindFirstGraphicAnnSQItem(); 
   DicomElement graphicAnnotationSequenceElement = dsPS.InsertElement(null, false, DicomTag.GraphicAnnotationSequence, DicomVRType.SQ, true, 0); 
   DicomElement item = dsPS.InsertElement(graphicAnnotationSequenceElement, true, DicomTag.Item, DicomVRType.OB, true, -1); 
   dsPS.InsertElement(item, true, DicomTag.GraphicLayer, DicomVRType.CS, false, 0); 
   du.FromAnnObjectToDataSet(dsPS, protractor, item); 
   dsPS.Save(fileOut, DicomDataSetSaveFlags.None); 
   MessageBox.Show("Presentation State Saved: " + fileOut); 
LeadPointD CreateLeadPointD(double x, double y) 
   double imageDpi = 96.0; 
   return new LeadPointD(x * 720.0 / imageDpi, y * 720.0 / imageDpi); 
Imports Leadtools 
Imports Leadtools.Dicom 
Imports Leadtools.Dicom.Annotations 
Imports Leadtools.Annotations.Core 
Private Sub DicomAnnotationsUtilities_FromAnnObjectToDataSet(ByVal fileOut As String) 
   ' Set up the DicomAnnotationsUtilities converter 
   Dim du As New DicomAnnotationsUtilities() 
   du.ImageDpiX = 96.0 
   du.ImageDpiY = 96.0 
   du.DisplayWidth = 200 
   du.DisplayHeight = 200 
   du.LayerName = "Layer 0" 
   du.CompoundGraphicInstanceId = 100 
   du.GraphicGroupId = 123 
   ' Create a protractor object 
   Dim protractor As New AnnProtractorObject() 
   protractor.AngularUnit = AnnAngularUnit.Degree 
   protractor.Stroke.Stroke = AnnSolidColorBrush.Create("green") 
   protractor.Points.Add(CreateLeadPointD(100, 300)) 
   protractor.Points.Add(CreateLeadPointD(200, 400)) 
   protractor.Points.Add(CreateLeadPointD(300, 300)) 
   ' Create a DicomDataSet 
   Dim dsPS As New DicomDataSet() 
   dsPS.Initialize(DicomClassType.GrayscaleSoftcopyPresentationState, DicomDataSetInitializeFlags.AddMandatoryModulesOnly Or DicomDataSetInitializeFlags.AddMandatoryElementsOnly) 
   ' DicomElement graphicAnnSequenceItem = dsPS.FindFirstGraphicAnnSQItem(); 
   Dim graphicAnnotationSequenceElement As DicomElement = dsPS.InsertElement(Nothing, False, DicomTag.GraphicAnnotationSequence, DicomVRType.SQ, True, 0) 
   Dim item As DicomElement = dsPS.InsertElement(graphicAnnotationSequenceElement, True, DicomTag.Item, DicomVRType.OB, True, -1) 
   dsPS.InsertElement(item, True, DicomTag.GraphicLayer, DicomVRType.CS, False, 0) 
   du.FromAnnObjectToDataSet(dsPS, protractor, item) 
   dsPS.Save(fileOut, DicomDataSetSaveFlags.None) 
   MessageBox.Show("Presentation State Saved: " & fileOut) 
End Sub 
Private Function CreateLeadPointD(ByVal x As Double, ByVal y As Double) As LeadPointD 
   Dim imageDpi As Double = 96.0 
   Return New LeadPointD(x * 720.0 / imageDpi, y * 720.0 / imageDpi) 
End Function 

Target Platforms

Help Version 22.0.2021.8.30
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Leadtools.Dicom.Annotations Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.