try {
TangoAttribute tangoAttribute = new TangoAttribute(scanServerDeviceName + "/"
+ actuatorName);
DeviceAttribute deviceAttribute = getDeviceProxy().read_attribute(actuatorName);
double[] values = (double[]) tangoAttribute.extractArray(double.class);
int width = deviceAttribute.getDimX();
int height = deviceAttribute.getDimY();
double[] doubleValues = Arrays.copyOf(values, width * height);