//////////////////////////////////////////////////////////////////////////////
// IPRun() - The thread function IPRun performs the image processing.
// It waits for the grabbing thread to indicate a new image in the
// image list. After calling the operator FindDataCode2D, the
// result values are stored in the ResultContainer instance
// resultData, which can be entered only after the previous result
// values were displayed (containerIsFree-event).
//////////////////////////////////////////////////////////////////////////////
public void IPRun()
{
// ------------------- INIT ----------------
HDataCode2D reader = new HDataCode2D("Data Matrix ECC 200",
new HTuple(), new HTuple());
reader.SetDataCode2dParam("default_parameters", "enhanced_recognition");
// ----------- WAIT FOR EVENTS ---------------
while (newImgEvent.WaitOne())
{
newImgMutex.WaitOne(); // CriticalSect
HImage image = (HImage)imgList[0]; // CriticalSect
imgList.Remove(image); // CriticalSect
newImgMutex.ReleaseMutex(); // CriticalSect
HTuple t1 = HSystem.CountSeconds();
HTuple decodedDataStrings, resultHandle;
HXLD symbolXLDs = reader.FindDataCode2d(image, new HTuple(),
new HTuple(), out resultHandle, out decodedDataStrings);
HTuple t2 = HSystem.CountSeconds();
containerIsFreeEvent.WaitOne();
resultDataMutex.WaitOne(); // CriticalSect
resultData.timeNeeded = (1000 * (t2 - t1)); // CriticalSect
resultData.decodedData = decodedDataStrings; // CriticalSect
resultData.resultImg = image; // CriticalSect
resultData.resultHandle = resultHandle; // CriticalSect
resultData.symbolData = symbolXLDs; // CriticalSect
containerIsFreeEvent.Reset(); // CriticalSect
resultDataMutex.ReleaseMutex(); // CriticalSect
newResultEvent.Set();
mainForm.Invoke(delegateDisplay);
if (delegatedStopEvent.WaitOne(0, true))
{
break;
}
}
// -------- RESET/CLOSE ALL HANDLES ---------
mainForm.threadAcq.Join();
mainForm.Invoke(delegateControlReset);
reader.Dispose();
newResultEvent.Reset();
return;
}
public override VisionResult Detected(VisionImage image, Dictionary <string, VisionResult> Result = null, VisionFlow parent = null, Shape newRoi = null)
{
VisionResult rtn = new VisionResult();
rtn.State = VisionResultState.WaitCal;
if (ROI == null || image == null)
{
rtn.State = VisionResultState.NG;
return(rtn);
}
try
{
using (VisionImage temp = new VisionImage())
{
var roi = this.ROI;
if (newRoi != null)
{
roi = newRoi;
}
using (HImage hImage = VisionHelper.Image(image))
{
RectangleContour rect = roi as RectangleContour;
using (HImage reduceImage = hImage.ReduceDomain(
new HRegion(rect.Top, rect.Left,
rect.Top + rect.Height,
rect.Left + rect.Width)))
{
string code = string.Empty;
switch (CodeType)
{
case CodeType.Code_2D_Mat:
code = "Data Matrix ECC 200";
break;
case CodeType.Code_QR:
code = "QR Code";
break;
}
using (HDataCode2D code2D = new HDataCode2D(code, "default_parameters", "maximum_recognition"))
{
HTuple result = new HTuple();
HTuple resultString = new HTuple();
code2D.FindDataCode2d(reduceImage, "stop_after_result_num", 1, out result, out resultString);
if (resultString.Length > 0)
{
rtn.BarCode = resultString.SArr[0];
this.AddVisionResc(rtn, $"条码寻找成功:{rtn.BarCode}");
rtn.State = VisionResultState.OK;
image.Overlays.Default.AddText(rtn.BarCode, new PointContour(rect.Left, rect.Top), Rgb32Value.BlueColor, new OverlayTextOptions("Consolas", 128));
}
else
{
rtn.State = VisionResultState.NG;
this.AddVisionResc(rtn, $"没有找到条码");
}
}
}
}
}
}
catch (HalconException ex)
{
this.AddVisionResc(rtn, $"没有找到条码 {ex.GetErrorMessage()}");
}
return(rtn);
}