Accessing original data from SciView

[odinsbane]

My example is using marching cubes, I have a volume-time series shown in sciview and I want to perform the marching cubes algorithm on it.

Right now it is using the Volume#getMetaData() to get the original RandomAccessibleInterval it would be good if there was a way that doesn't involve using a magic key.

The next problem is the marching cubes algorithm will use the first time point. So my idea was to use Volume#getCurrentTimepoint() then create a shifted view.

I think there are two issues here.

• How to access the original data source as an RandomAccessibleInterval/Img

  public RandomAccessibleInterval<?> getOriginalRandomAccessibleInterval()

• How to access the data used for the currently rendered volume.

  public InternalInterval<?> getCurrentView();

@Override
    public void run() {
        Node active = sciView.getActiveNode();
        Volume v;
        if(active instanceof Volume) {
            v = (Volume)active;
            Img<UnsignedByteType> img = (Img<UnsignedByteType>)v.getMetadata().get("RandomAccessibleInterval");
            int tp = v.getCurrentTimepoint();

            IntervalView<UnsignedByteType> view = Views.hyperSlice(img, 3, tp);
            Mesh meshes = MarchingCubesRealType.calculate(view, 1);
            meshes = RemoveDuplicateVertices.calculate(meshes, 0);
            Group g = new Group(  );
            g.setName("meshes-at:" + tp);
            for(Map.Entry<String, Object> entry : v.getMetadata().entrySet()){
                System.out.println(entry.getKey() + ", " + entry.getValue());
            }
            for(Mesh m : MeshConnectedComponents.iterable(meshes)){
                graphics.scenery.Mesh ready = MarchingCubesCheck.convert(m);
                ready.material().setWireframe(true);
                ready.material().setDiffuse(new Vector3f(1f, 0.7f, 0.5f));
                g.addChild(ready);
            }
            sciView.addNode(g, v);
        } else{
            ui.showDialog("The active node needs to be a volume.", DialogPrompt.MessageType.ERROR_MESSAGE);
            return;
        }
    }