/// <summary>
/// Initializes a new DetectorVideoSink.
/// </summary>
/// <param name="detector">The CaptureSourceMarkerDetector to use.</param>
public UWPMediaSink(CaptureSourceMarkerDetector detector)
{
this.detector = detector;
listener.ConnectionReceived += Listener_ConnectionReceived;
displayOrientation = displayInformation.CurrentOrientation;
displayInformation.OrientationChanged += DisplayInformation_OrientationChanged;
}
/// <summary>
/// Initializes a new DetectorVideoSink.
/// </summary>
/// <param name="detector">The CaptureSourceMarkerDetector to use.</param>
public UWPMediaSink(CaptureSourceMarkerDetector detector)
{
this.detector = detector;
listener.ConnectionReceived += Listener_ConnectionReceived;
displayOrientation = displayInformation.CurrentOrientation;
displayInformation.OrientationChanged += DisplayInformation_OrientationChanged;
}
void MainPage_Loaded(object sender, RoutedEventArgs e)
{
captureSource = new CaptureSource
{
VideoCaptureDevice = CaptureDeviceConfiguration.GetDefaultVideoCaptureDevice()
};
var videoBrush = new VideoBrush();
videoBrush.SetSource(captureSource);
Viewport.Fill = videoBrush;
markerDetector = new CaptureSourceMarkerDetector();
var marker = Marker.LoadFromResource("Bola.pat", 64, 64, 80);
markerDetector.Initialize(captureSource, 1d, 4000d, marker);
markerDetector.MarkersDetected += (obj, args) =>
{
Dispatcher.BeginInvoke(() =>
{
var results = args.DetectionResults;
if (results.HasResults)
{
var centerAtOrigin =
Matrix3DFactory.
CreateTranslation(
-Imagem.ActualWidth*
0.5,
-Imagem.
ActualHeight*
0.5, 0);
var scale =
Matrix3DFactory.CreateScale
(0.5, -0.5, 0.5);
var world = centerAtOrigin*
scale*
results[0].
Transformation;
var vp =
Matrix3DFactory.
CreateViewportTransformation
(Viewport.ActualWidth,
Viewport.ActualHeight);
var m =
Matrix3DFactory.
CreateViewportProjection
(world,
Matrix3D.Identity,
markerDetector.
Projection, vp);
Imagem.Projection =
new Matrix3DProjection
{ProjectionMatrix = m};
}
});
};
}
private void Initialize()
{
try
{
// Init variables
timedRotation = 0;
Scale = 0.4;
Rotate = 0;
// Init capture source
captureSource = new CaptureSource();
captureSource.VideoCaptureDevice = CaptureDeviceConfiguration.GetDefaultVideoCaptureDevice();
// Desired format is 320 x 240 (good tracking results and performance)
captureSource.VideoCaptureDevice.DesiredFormat = new VideoFormat(PixelFormatType.Unknown, 320, 240, 30);
// Init AR
markerSlar = Marker.LoadFromResource("data/Marker_SLAR_16x16segments_80width.pat", 16, 16, 80.0, "SLAR");
markerL = Marker.LoadFromResource("data/Marker_L_16x16segments_80width.pat", 16, 16, 80.0, "L");
ArDetector = new CaptureSourceMarkerDetector(captureSource, 1, 4000, new List<Marker> { markerSlar, markerL });
AttachAREvent();
// Init Rest
projectionMatrix = Matrix3DFactory.CreatePerspectiveFieldOfViewRH(0.7, ViewportContainer.Width / ViewportContainer.Height, 1, 4000);
this.DataContext = this;
// Start all
SetARObject();
RunUpdate();
}
catch (Exception ex)
{
var builder = new StringBuilder();
foreach (var sf in captureSource.VideoCaptureDevice.SupportedFormats)
{
builder.AppendFormat("{0}: {1} x {2} @ {3} fps. Stride: {4}\r\n", sf.PixelFormat, sf.PixelWidth, sf.PixelHeight, sf.FramesPerSecond, sf.Stride);
}
MessageBox.Show("Error during initialization. Please make sure a default webcam was set.\r\nSupported formats:\r\n" + builder.ToString() + "\r\n\r\n" + ex.ToString(), "Error during init.", MessageBoxButton.OK);
throw;
}
}
private void InitializeDetector()
{
// Initialize the Detector
arDetector = new CaptureSourceMarkerDetector();
// Load the marker pattern. It has 16x16 segments and a width of 80 millimeters
var marker = Marker.LoadFromResource("Marker_SLAR_16x16segments_80width.pat", 16, 16, 80);
// The perspective projection has the near plane at 1 and the far plane at 4000
arDetector.Initialize(captureSource, 1, 4000, new List<Marker> { marker }, adaptive.IsChecked.Value);
// Attach the AR detection event handler
// The event is fired if at least one marker was detected
arDetector.MarkersDetected += (s, me) =>
{
// Change to UI thread in order to manipulate the text control's projection
Dispatcher.BeginInvoke(() =>
{
// Calculate the projection matrix
var dr = me.DetectionResults;
if (dr.HasResults)
{
// Center at origin of the TextBlock
var centerAtOrigin = Matrix3DFactory.CreateTranslation(-Txt.ActualWidth * 0.5, -Txt.ActualHeight * 0.5, 0);
// Swap the y-axis and scale down by half
var scale = Matrix3DFactory.CreateScale(0.5, -0.5, 0.5);
// Calculate the complete transformation matrix based on the first detection result
var world = centerAtOrigin * scale * dr[0].Transformation;
// Calculate the final transformation matrix by using the camera projection matrix
var vp = Matrix3DFactory.CreateViewportTransformation(Viewport.ActualWidth, Viewport.ActualHeight);
var m = Matrix3DFactory.CreateViewportProjection(world, Matrix3D.Identity, arDetector.Projection, vp);
// Apply the final transformation matrix to the TextBox
Txt.Projection = new Matrix3DProjection { ProjectionMatrix = m };
}
});
};
}
/// <summary>
/// Initializes a new DetectorVideoSink.
/// </summary>
/// <param name="detector">The CaptureSourceMarkerDetector to use.</param>
public DetectorVideoSink(CaptureSourceMarkerDetector detector)
: base()
{
this.detector = detector;
}
/// <summary>
/// Initializes a new DetectorVideoSink.
/// </summary>
/// <param name="detector">The CaptureSourceMarkerDetector to use.</param>
public DetectorVideoSink(CaptureSourceMarkerDetector detector)
: base()
{
this.detector = detector;
}
