[visad] Help!!! Domain of Image

[Marco Aurélio Silva Neto]

How do I amended the domain of an image?

I am using the following code to generate the image ...

My Code ...

            RealType longitude;
            RealType latitude;
            RealType redType;
            RealType greenType;
            RealType blueType;
            DataReferenceImpl data_ref;
            ScalarMap redMap;
            ScalarMap greenMap;
            ScalarMap blueMap;
            ScalarMap lonXMap;
            ScalarMap latYMap;

            GIFForm image = new GIFForm();
            DataImpl imageData 
=image.open("/home/mneto/Desktop/teste5.jpg");
           
            FunctionType functionType = (FunctionType) imageData.getType();

            RealTupleType domain = (RealTupleType) functionType.getDomain();
            RealTupleType range = (RealTupleType) functionType.getRange();

            longitude = (RealType) domain.getComponent(0);
            latitude = (RealType) domain.getComponent(1);

            redType = (RealType) range.getComponent(0);
            greenType = (RealType) range.getComponent(1);
            blueType = (RealType) range.getComponent(2);

            lonXMap = new ScalarMap(longitude, Display.XAxis);
            latYMap = new ScalarMap(latitude, Display.YAxis);

            redMap = new ScalarMap(redType, Display.Red);
            greenMap = new ScalarMap(greenType, Display.Green);
            blueMap = new ScalarMap(blueType, Display.Blue);


            display.addMap(lonXMap);
            display.addMap(latYMap);
            display.addMap(redMap);
            display.addMap(greenMap);
            display.addMap(blueMap);

            data_ref = new DataReferenceImpl("image_ref");

            data_ref.setData(imageData);

            display.addReference(data_ref);

I wonder as I do, for example, to use the function Linear2DSet to change 
the domain of image (position and size, for example).

Grateful

Marco