LearnPatternAdvancedOptions lpao;
LearnPatternAdvancedShiftOptions lpaso;
LearnPatternAdvancedRotationOptions lparo;
CircleMatch* matchedCircles = NULL;
CircleDescriptor circleDescriptor;
CurveOptions curveOptions;
ShapeDetectionOptions shapeOptions;
RangeFloat orientationRange[2];
matchPatternOptions.mode = IMAQ_MATCH_SHIFT_INVARIANT;
matchPatternOptions.minContrast = 0;
matchPatternOptions.subpixelAccuracy = TRUE;
matchPatternOptions.angleRanges = angleRange;
imaqDetectCircles(ptr->hImageGrey, &circleDescriptor, NULL, &shapeOptions, roi, &numMatchesFound);
What does it mean these functions?? What need have grammar? thanks