Retrieving spline grid from SplineSurvey

[leofarage]

Hi, I've been trying to follow Tower's app on how to generate a SplineSurvey's grid, but I've yet to retrieve a spline grid (it returns just a Grid with 90º curves).

Here's a snippet of what I'm doing.

Survey currentSurvey = new SplineSurvey();

final SurveyDetail surveyDetail = new SurveyDetail(currentSurvey.getSurveyDetail());
surveyDetail.setAngle(angle);
surveyDetail.setSidelap(75);
surveyDetail.setOverlap(85);

CameraProxy camera = mDrone.getAttribute(AttributeType.CAMERA);
if(camera != null) {
    // Load the available cameras
    List<CameraDetail> cameraDetails = camera.getAvailableCameraInfos();
    if(!cameraDetails.isEmpty()){
        surveyDetail.setCameraDetail(cameraDetails.get(0));
    }
}
currentSurvey.setSurveyDetail(surveyDetail);
currentSurvey.setPolygonPoints(positions);
currentSurvey.setCameraLocations(positions);
currentSurvey = CommonApiUtils.buildSplineSurvey(null, currentSurvey);

presentSurvey(currentSurvey.getGridPoints());

I haven't been able to initialize an instance of MavLinkDrone as well, thus why I'm passing null as the first parameter of CommonApiUtils.buildSplineSurvey

Any light is welcome. Thank you!