/// Windows C# Sample Console Application: AutoFocus
///
/// ------------------------------------------------------------------------
///
/// Author: R.McAlister (2017)
///
/// ------------------------------------------------------------------------
///
/// This application performs the following steps:
/// Saves the current target and imaging parameters
/// Turns off Autoguiding (if on)
/// Turns on AutoFocus
/// Returns to the current target
/// Note that "Automatically slew telescope to nearest appropriate focus star" must be checked in the @Focus2 start-up window.
///
public void AutoFocusSample()
{
int iFilter = 3; ///Luminescent, I hope
///Connect the telescope for some slewing
sky6RASCOMTele tsx_tt = new sky6RASCOMTele();
tsx_tt.Connect();
///Work around and Run @Focus2
/// Save current target name so it can be found again
/// Run @Focus2 (which preempts the observating list and object)
/// Restore current target, using Name with Find method
/// ClosedLoopSlew back to target
ccdsoftCamera tsx_cc = new ccdsoftCamera();
tsx_cc.Connect();
tsx_cc.focConnect();
///Get current target name so we can return after running @focus2
sky6ObjectInformation tsx_oi = new sky6ObjectInformation();
tsx_oi.Property(Sk6ObjectInformationProperty.sk6ObjInfoProp_NAME1);
string sTargetName = tsx_oi.ObjInfoPropOut;
///TBD: Set up parameters for @Focus2, if necessary
///
///Run Autofocus
/// Create a camera object
/// Launch the autofocus watching out for an exception -- which will be posted in TSX
///Save current camera delay, exposure and filter
/// then set the camera delay = 0
/// set the delay back when done with focusing
tsx_cc.AutoSaveFocusImages = 0;
var dCamDelay = tsx_cc.Delay;
var iCamReduction = tsx_cc.ImageReduction;
var iCamFilter = tsx_cc.FilterIndexZeroBased;
var dCamExp = tsx_cc.ExposureTime;
var iFocStatus = 0;
tsx_cc.ImageReduction = ccdsoftImageReduction.cdAutoDark;
tsx_cc.FilterIndexZeroBased = 3; ///Luminance
tsx_cc.ExposureTime = 10;
tsx_cc.Delay = 0;
tsx_cc.FilterIndexZeroBased = iFilter;
iFocStatus = tsx_cc.AtFocus2();
///Restore the current target and slew back to it
/// Run a Find on the target -- which makes it the "observation"
/// Perform Closed Loop Slew to the target
sky6StarChart tsx_sc = new sky6StarChart();
tsx_sc.Find(sTargetName);
///Run a Closed Loop Slew to return
ClosedLoopSlew tsx_cls = new ClosedLoopSlew();
///Set the exposure, filter to luminance and reduction, set the camera delay to 0 -- any backlash
/// should be picked up in the mount driver
tsx_cc.ImageReduction = ccdsoftImageReduction.cdAutoDark;
tsx_cc.FilterIndexZeroBased = iFilter; ///Luminance, probably
tsx_cc.ExposureTime = 10;
tsx_cc.Delay = 0;
try
{
var clsstat = tsx_cls.exec();
}
catch
{
///Just close up: TSX will spawn error window
///System.Windows.Forms.Show("AutoFocus return failure")
};
///Put back the orginal settings
tsx_cc.ImageReduction = iCamReduction;
tsx_cc.FilterIndexZeroBased = iCamFilter;
tsx_cc.ExposureTime = dCamExp;
tsx_cc.Delay = dCamDelay;
return;
}