Navigation:  I Want To... > Imaging > Generate new pixel data

Use Case

Relevant Architecture

Relevant Types

Sample Code

using System.Drawing;

using ClearCanvas.Common;

using ClearCanvas.Desktop;

using ClearCanvas.Desktop.Actions;

using ClearCanvas.ImageViewer;

using ClearCanvas.ImageViewer.BaseTools;

using ClearCanvas.ImageViewer.Graphics;

 

// ... (other using namespace statements here)

 

namespace MyPlugin.Imaging

{

   [ButtonAction("apply", "global-toolbars/ToolbarStandard/GeneratePixelDataTool", "Apply")]

   [IconSet("apply", IconScheme.Colour, "Icons.MyToolSmall.png", "Icons.MyToolMedium.png", "Icons.MyToolLarge.png")]

   // ... (other action attributes here)

   [ExtensionOf(typeof (ImageViewerToolExtensionPoint))]

   public class GeneratePixelDataTool : ImageViewerTool

   {

      public void Apply()

      {

         // create some pixel data

         ColorImageGraphic colorImage = new ColorImageGraphic(256, 256);

 

         colorImage.PixelData.ForEachPixel(

            delegate(int i, int x, int y, int pixelIndex)

               {

                  if (y > 128)

                     colorImage.PixelData.SetPixel(pixelIndex, Color.Blue);

                  else

                     colorImage.PixelData.SetPixel(pixelIndex, Color.Red);

               });

 

         // now do something with it... like add it to the image

         IOverlayGraphicsProvider provider = base.SelectedPresentationImage as IOverlayGraphicsProvider;

         if (provider == null)

            return;

 

         // reposition it relative to the image

         colorImage.SpatialTransform.TranslationX = 5;

         colorImage.SpatialTransform.TranslationY = 5;

 

         provider.OverlayGraphics.Add(colorImage);

         base.SelectedPresentationImage.Draw();

      }

   }

}

Remarks

When you generate new pixel data, you will typically want to do it in the context of creating a new kind of PresentationImage or adding an image overlay to an existing PresentationImage.

Examples in Code Base