private void OnMouseDown(object sender, MouseButtonEventArgs mouseButtonEventArgs)
{
if (Mouse.RightButton == MouseButtonState.Pressed)
{
MainWindowViewModel viewModel = (MainWindowViewModel)DataContext;
var mousePosition = mouseButtonEventArgs.GetPosition(this);
Vector <double> mouseVec = _vecBuilder.DenseOfArray(new[] { mousePosition.X, mousePosition.Y, 1.0f });
var featureBands = viewModel.Layers.Where(b => b.UseFeature).OrderBy(b => b.Name).ToList();
ushort[] bandPixels = new ushort[featureBands.Count];
var viewToToWorld = viewModel.ClassifierViewModel.ScreenToWorld * _scaleMat.Inverse() * _screenToViewMat.Inverse();
for (int bandIndex = 0; bandIndex < featureBands.Count; ++bandIndex)
{
var band = featureBands[bandIndex];
var viewToPixelMat = band.WorldToImage * viewToToWorld;
var bandPixelPosition = viewToPixelMat * mouseVec;
ushort bandPixelValue = band.BandImage.GetScaledToUshort((int)bandPixelPosition[0], (int)bandPixelPosition[1]);
bandPixels[bandIndex] = bandPixelValue;
}
var worldMousePosition = viewToToWorld * mouseVec;
int selectedIndex = viewModel.LandcoverTypes.Values.ToList().FindIndex(f => f.Id == viewModel.SelectedLandCoverTypeViewModel.Id);
var classifiedFeatureVector = new ClassifiedFeatureVector(selectedIndex, new FeatureVector(bandPixels), new Point(worldMousePosition[0], worldMousePosition[1]));
viewModel.ClassifierViewModel.FeaturesViewModel.AddFeature(new ClassifiedFeatureVectorViewModel(classifiedFeatureVector));
}
}
public ClassifiedFeatureVectorViewModel(ClassifiedFeatureVector classifiedFeatureVector)
{
ClassifiedFeatureVector = classifiedFeatureVector;
FeatureTypeViewModel = MainWindowViewModel.Default.LandcoverTypes.Values.ToList()[ClassifiedFeatureVector.FeatureClass];
}
