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RemoveAllLayers Method

Summary
Removes all layers under the "Graphic Layer Module".
Syntax
C#
C++/CLI
public void RemoveAllLayers( 
   bool annSequence 
) 
public: 
void RemoveAllLayers(  
   bool annSequence 
)  

Parameters

annSequence
true to remove the items, under the "Graphic Annotation Sequence", that reference the layers; false to remove only the layers.

Remarks

This method removes all items 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 are related to the removed layers.

Example
C#
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"; 
} 
Requirements

Target Platforms

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