/// <summary>
/// Manual Triggerring
/// </summary>
/// <param name="manualLive"></param>
/// <returns></returns>
public override object Acquire(bool manualLive)
{
if (_cogAcqFifo == null)
{
//if (SimFileName !="" && File.Exists(SimFileName))
//{
// return Bitmap.FromFile(SimFileName);
//}
return(null);
}
ICogImage cogImage = null;
StopLiveAllCameraWindows();
if (ExternalTrigger)
{
if (!manualLive)
{
TriggerMode = eTriggerMode.Idle;
}
_waitForImage.Reset();
FireTrigger();
try
{
// Wait for response
U.BlockOrDoEvents(_waitForImage, 2000);
cogImage = _lastCogImage;
}
catch (Exception ex)
{
U.LogError(ex, "Image Acquisition error");
}
}
else
{
try
{
System.Threading.Thread.Sleep(1);
int ticket = -1;
lock (_lockAcqFifo)
{
ticket = _cogAcqFifo.StartAcquire();
}
cogImage = WaitForImage(ticket);
}
catch (Exception ex)
{
U.LogError(ex, "Cognex Acquisition Error");
}
D.ObjectEventHandler delCallback = GetNextCallback();
if (delCallback != null)
{
delCallback(cogImage);
}
}
AssignImageToWindows(cogImage);
return(cogImage);
}
/// <summary>
/// Manual Grab Image
/// </summary>
public bool GrabManual(bool waitComplete)
{
bool Status = false;
int trigNum, completeTicket;
int retry = 0;
while (retry < 3)// if something wrong during image capturing retry 3 times;
{
if (cogAcqFifo != null)
{
if (this.cogAcqTrigger != null)
{
if (this.cogAcqTrigger.TriggerModel != CogAcqTriggerModelConstants.Manual)
{
// Select manual trigger mode
this.cogAcqTrigger.TriggerEnabled = false;
this.cogAcqTrigger.TriggerModel = CogAcqTriggerModelConstants.Manual;
this.cogAcqTrigger.TriggerEnabled = true;
}
// Acquire an image
try
{
// Acquire an image
acqTicket = cogAcqFifo.StartAcquire();
if (waitComplete)
{
grabImage = this.cogAcqFifo.CompleteAcquire(this.acqTicket,
out completeTicket,
out trigNum) as CogImage8Grey;
numGCAcqs++;
// do GC every COGFRAMENUM
if (this.numGCAcqs >= 4)
{
GC.Collect();
numGCAcqs = 0;
}
}
Status = true;
}
catch (Exception ex)
{
retry++;
Log.Warn(this, "cogAcqFifo Acquire error: {0}, Retry:{1}", ex.Message, retry);
Thread.Sleep(2000);
}
}
}
else
{
break;
}
if (Status)
{
break;
}
}//while loop
return(Status);
}
