/// <summary>
/// Finds the stripe on the image.
/// </summary>
/// <param name="image">Image to find the stripe on.</param>
/// <param name="scanningSegment">Scanning segment chosen by user.</param>
/// <param name="selectedPolarity">Polarity of the stripe - dark, bright or any.</param>
/// <param name="measuredSegment">Segment representing the stripe that has been found.</param>
/// <param name="measuredSegmentLength">Length of the segment.</param>
/// <returns></returns>
public static bool DoMeasurement(Image image, Segment scanningSegment, Polarity selectedPolarity,
out Segment measuredSegment, out float measuredSegmentLength)
{
// Create disposable scanning parameters
//mr:: 生成扫描线段. 注意Segment2D, Segment,是不同类型.Segment是程序自定义类型.
Segment2D avlScanningSegment = new Segment2D(
scanningSegment.StartPoint.X,
scanningSegment.StartPoint.Y,
scanningSegment.EndPoint.X,
scanningSegment.EndPoint.Y);
//mr:: 生成Stripe扫描参数
StripeScanParams scanParams = new StripeScanParams()
{
StripePolarity = selectedPolarity
};
//mr:: Nullable.Create<Stripe1D>()
var stripe = Nullable.Create <Stripe1D>();
// Create the ScanMap object
//mr:: ScanMap需要Dispose
using (var scanMap = new ScanMap())
{
//mr:: 生成Image格式.
ImageFormat imageFormat = new ImageFormat(image);
//mr:: 生成扫描Map
/*
* public static void CreateScanMap
* (
* AvlNet.ImageFormat inImageFormat,
* AvlNet.Path inScanPath,
* AvlNet.CoordinateSystem2D? inScanPathAlignment,
* int inScanWidth,
* AvlNet.InterpolationMethod inImageInterpolation,
* AvlNet.ScanMap outScanMap,
* AvlNet.Path outAlignedScanPath,
* IList<AvlNet.Path> diagSamplingPoints,
* out float diagSamplingStep
* )
*/
AVL.CreateScanMap(imageFormat,
new Path(avlScanningSegment),
null,
5,
InterpolationMethod.Bilinear,
scanMap);
// Do the scanning
//mr:: Stripe1D is a class, declared without out keyword in parameters of AVL.ScanSingleStripe
/*
* public static void ScanSingleStripe
* (
* AvlNet.Image inImage,
* AvlNet.ScanMap inScanMap,
* AvlNet.StripeScanParams inStripeScanParams,
* AvlNet.Selection inStripeSelection,
* AvlNet.LocalBlindness? inLocalBlindness,
* INullable<AvlNet.Stripe1D> outStripe,
* AvlNet.Profile diagBrightnessProfile,
* AvlNet.Profile diagResponseProfile
* )
*/
AVL.ScanSingleStripe(image, scanMap, scanParams, Selection.Best, null, stripe);
}
if (stripe.HasValue) // Stripe has been found
{
//mr:: Segment is a class; measuredSegment is declared with out keyword ;
//mr:: Segment的ctor输入参数是System.Drawing.Point类型.
measuredSegment = new Segment(
new System.Drawing.Point((int)stripe.Value.Point1.X, (int)stripe.Value.Point1.Y),
new System.Drawing.Point((int)stripe.Value.Point2.X, (int)stripe.Value.Point2.Y));
measuredSegmentLength = stripe.Value.Width;
return(true);
}
else // Stripe not found
{
// Set values of output parameters
measuredSegment = null;
measuredSegmentLength = 0.0f;
return(false);
}
}
