int nbActuator = actuators.length;
String trajectoriesName = CurrentScanDataModel.TRAJECTORIES + indexStr;
DeviceProxy proxy = TangoDeviceHelper.getDeviceProxy(scanServerName);
if (proxy != null) {
DeviceAttribute attribute = proxy.read_attribute(trajectoriesName);
double[] allValues = attribute.extractDoubleArray();
if (allValues != null && allValues.length > 0) {
double[] flatValues = Arrays.copyOf(allValues, attribute.getNbRead());
int nbPoints = flatValues.length / nbActuator;
double[] line = null;
Trajectory trajectory = null;