public void RemoveLayerByName(
string layerName,
bool annSequence
)
public:
void RemoveLayerByName(
String^ layerName,
bool annSequence
)
layerName
The name of the layer to be removed from the Graphic Layer Module.
annSequence
true to remove the items, under the "Graphic Annotation Sequence", that reference the layer; false to remove only the layer.
This method removes the item, which represents a layer under the "Graphic Layer Sequence"(0070,0060). If annSequence is set to true then the method will clean any elements under the "Graphic Annotation Sequence" which correspond to the layer being removed.
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:\LEADTOOLS23\Resources\Images";
}
GetLayerGraphicObjectCount Method
RemoveLayerGraphicObjects Method
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