GetLayerGraphicObjectCount Method (original) (raw)
Summary
Retrieves the number of graphical annotation objects, which correspond to the specified item under the "Graphic Annotation Sequence" (0070,0001).
Syntax
Parameters
graphicAnnSQItem
An item element under the "Graphic Annotation Sequence" 0008,1115) in the "Graphic Annotation Module".
Return Value
The Graphic object count, which correspond to the specified item.
Example
using Leadtools;
using Leadtools.Dicom;
public void DicomLayerSample()
{
//Make sure to initialize the DICOM engine, this needs to be done only once
//In the whole application
DicomEngine.Startup();
using (DicomDataSet dicomDataset = new DicomDataSet())
{
// We can also initialize in here the "Grayscale Softcopy Presentation State" class
dicomDataset.Initialize(DicomClassType.Undefined, DicomDataSetInitializeType.ExplicitVRLittleEndian);
//We can remove individual layers by calling RemoveLayerByIndex and RemoveLayerByName
dicomDataset.RemoveAllLayers(true);
DicomGraphicLayer graphicLayer = new DicomGraphicLayer();
graphicLayer.LayerOrder = 1;
graphicLayer.LayerDescription = "First Layer";
graphicLayer.LayerName = "LAYER0";
graphicLayer.Grayscale = 0;
graphicLayer.RgbLayerColor[0] = 255;
dicomDataset.CreateLayer(graphicLayer);
Debug.Assert(dicomDataset.GetLayerIndex("LAYER0") == 0);
DicomGraphicLayer graphicLayer1 = dicomDataset.GetLayerInformation(0);
Debug.Assert(graphicLayer1 != null);
Debug.Assert(graphicLayer1.LayerOrder == 1);
graphicLayer.LayerName = "LAYER1";
dicomDataset.SetLayerInformation(0, graphicLayer);
Debug.Assert(dicomDataset.LayerCount == 1);
// We can also call GetLayerElementByName to get the layer element
DicomElement layer = dicomDataset.GetLayerElementByIndex(0);
Debug.Assert(layer != null);
dicomDataset.RemoveLayerGraphicObjects(layer);
Debug.Assert(dicomDataset.GetLayerGraphicObjectCount(layer) == 0);
dicomDataset.RemoveLayerTextObjects(layer);
Debug.Assert(dicomDataset.GetLayerTextObjectCount(layer) == 0);
dicomDataset.Save(Path.Combine(LEAD_VARS.ImagesDir, "DICOM", "PresentationState.dcm"), DicomDataSetSaveFlags.None);
}
DicomEngine.Shutdown();
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}