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;
try
{
if (parent != null && image != null && Result != null)
{
Collection <PointContour> pt = new Collection <PointContour>();
if (CrossList.Count >= 3)
{
for (int i = 0; i < CrossList.Count; ++i)
{
if (Result.ContainsKey(this.CrossList[i]))
{
pt.Add(Result[this.CrossList[i]].Point);
}
else
{
return(rtn);
}
}
FitCircleReport report = Algorithms.FitCircle(pt);
rtn.Point = report.Center;
this.AddVisionResc(rtn, "拟合成功");
image.Overlays.Default.AddOval(report.Circle, Rgb32Value.RedColor);
image.Overlays.Default.AddPoint(rtn.Point, Rgb32Value.RedColor);
image.Overlays.Default.AddRoi(report.Circle.ConvertToRoi());
rtn.State = VisionResultState.OK;
}
else
{
this.AddVisionResc(rtn, "拟合点数据少于3");
rtn.State = VisionResultState.NG;
}
}
else
{
throw new Exception("没有找到对应结果");
}
}
catch (Exception ex)
{
this.AddVisionResc(rtn, ex.Message);
rtn.State = VisionResultState.NG;
}
return(rtn);
}
private FitCircleReport FindCircularEdge(VisionImage image, AnnulusContour searchAnnulus, SpokeDirection spokeDirection, DrawOptions drawOptions, CoordinateTransform transform)
{
// Add the search rectangle to an Roi.
Roi roi = new Roi(new Shape[] { searchAnnulus });
// Transform the Roi.
Algorithms.TransformRoi(roi, transform);
// Perform a spoke operation.
SpokeReport report = Algorithms.Spoke(image, roi, spokeDirection, EdgeProcess.FirstAndLast, 8);
Collection <PointContour> circlePoints = new Collection <PointContour>();
foreach (EdgeInfo edgeInfo in report.FirstEdges)
{
circlePoints.Add(edgeInfo.Position);
}
// Fit a circle to the points found.
FitCircleReport circleReport = Algorithms.FitCircle(circlePoints);
// Draw the results.
if (drawOptions.ShowSearchLines)
{
foreach (SearchLineInfo lineInfo in report.SearchLines)
{
image.Overlays.Default.AddLine(lineInfo.Line, Rgb32Value.BlueColor);
DrawArrow(image.Overlays.Default, lineInfo.Line, Rgb32Value.BlueColor);
}
}
if (drawOptions.ShowSearchArea)
{
image.Overlays.Default.AddRoi(roi);
}
if (drawOptions.ShowEdgesFound)
{
foreach (EdgeInfo edgeInfo in report.FirstEdges)
{
image.Overlays.Default.AddRectangle(new RectangleContour(edgeInfo.Position.X - 1, edgeInfo.Position.Y - 1, 3, 3), Rgb32Value.YellowColor, DrawingMode.PaintValue);
}
}
if (drawOptions.ShowResult)
{
// Overlay the center point.
image.Overlays.Default.AddOval(new OvalContour(circleReport.Center.X - 2, circleReport.Center.Y - 2, 5, 5), Rgb32Value.RedColor, DrawingMode.PaintValue);
// Overlay the circle.
image.Overlays.Default.AddOval(new OvalContour(circleReport.Center.X - circleReport.Radius, circleReport.Center.Y - circleReport.Radius, 2 * circleReport.Radius, 2 * circleReport.Radius), Rgb32Value.RedColor, DrawingMode.DrawValue);
}
return(circleReport);
}
private void timer1_Tick(object sender, EventArgs e)
{
// Get the next image.
VisionImage image = GetNextImage();
// Find the new coordinate transformation.
MatchPatternOptions matchOptions = new MatchPatternOptions(MatchMode.RotationInvariant);
matchOptions.MinimumMatchScore = 700;
matchOptions.SubpixelAccuracy = true;
DrawOptions drawOptions = new DrawOptions();
drawOptions.ShowResult = true;
FindTransformWithPattern(image, imageViewer2.Image, FindTransformMode.UpdateTransform, matchOptions, drawOptions, transform);
// Initialize search rectangle and search annulus.
RectangleContour searchRectangle = new RectangleContour(470, 110, 30, 190);
AnnulusContour searchAnnulus = new AnnulusContour(new PointContour(366, 201), 33, 121, 42.71, 314.13);
// Overlay the search area for the distance measurement.
drawOptions.ShowEdgesFound = true;
drawOptions.ShowSearchArea = true;
drawOptions.ShowSearchLines = true;
drawOptions.ShowResult = true;
double distance = MeasureMaximumDistance(image, searchRectangle, RakeDirection.TopToBottom, drawOptions, transform);
// Overlay the search area for the circle measurement.
FitCircleReport circleReport = FindCircularEdge(image, searchAnnulus, SpokeDirection.InsideToOutside, drawOptions, transform);
// Display results.
distanceBox.Text = String.Format("{0:0.00}", distance);
centerXBox.Text = String.Format("{0:0.00}", circleReport.Center.X);
centerYBox.Text = String.Format("{0:0.00}", circleReport.Center.Y);
radiusBox.Text = String.Format("{0:0.00}", circleReport.Radius);
// Display the image.
imageViewer1.Attach(image);
}
