/// <summary>
/// Draw the interpolation results.
/// </summary>
public void Draw()
{
VolumeInterpolation volumeInterpolation = workerThread.GetVolumeInterpolation();
int scale = volumeInterpolation.GetScale();
double[] minMax = GetMinMax();
// draw result for all coordinates
for (int x = 0; x < volumeInterpolation.Values.GetLength(0); x++)
{
for (int y = 0; y < volumeInterpolation.Values.GetLength(1); y++)
{
Rectangle rect = new Rectangle();
rect.Width = scale;
rect.Height = scale;
byte intensity = (byte)(255 - (255 / (minMax[1] - minMax[0])) * (volumeInterpolation.Values[x, y, speakerIndex, 0] - minMax[0]));
rect.Fill = new SolidColorBrush(Color.FromRgb(intensity, intensity, 255));
canvas.Children.Add(rect);
Canvas.SetLeft(rect, x * scale);
Canvas.SetTop(rect, (volumeInterpolation.Values.GetLength(1) - y) * scale);
}
}
// add the current position
currentPosition = new Rectangle();
currentPosition.Width = scale;
currentPosition.Height = scale;
currentPosition.Fill = Brushes.Orange;
canvas.Children.Add(currentPosition);
Canvas.SetLeft(currentPosition, -10);
Canvas.SetTop(currentPosition, -10);
workerThread.ResultReady += ResultReady;
}
/// <summary>
/// Update the current position when it changes.
/// </summary>
/// <param name="sender">Worker thread.</param>
/// <param name="e">Event arguments.</param>
private void ResultReady(object sender, ResultReadyEventArgs e)
{
if (e.Result.GetCoordinates().HasValue)
{
VolumeInterpolation volumeInterpolation = workerThread.GetVolumeInterpolation();
int scale = volumeInterpolation.GetScale();
Canvas.SetLeft(currentPosition, volumeInterpolation.MapCoordinate(e.Result.GetCoordinates().Value.X) * scale);
Canvas.SetTop(currentPosition, (volumeInterpolation.Values.GetLength(1) - volumeInterpolation.MapCoordinate(e.Result.GetCoordinates().Value.Y)) * scale);
}
}