public MainWindow()
{
view = new ViewParams();
InitializeComponent();
scale = new ScaleTransform(1, 1, 0, 0);
pan = new TranslateTransform(0, plot.Height);
signals = new SignalCollection(this);
signals.scaleSignalStrokes(scale);
signals.updateLabels();
resetTransform();
ports = SerialPort.GetPortNames();
Console.WriteLine("ports:");
foreach (string port in ports)
{
comportList.Items.Add(port.ToString());
Console.WriteLine(port);
}
arduinoPort = new SerialPort();
arduinoPort.Parity = Parity.None;
arduinoPort.StopBits = StopBits.One;
arduinoPort.DataBits = 8;
arduinoPort.BaudRate = 115200;
arduinoPort.ReadTimeout = 200;
if (comportList.Items.Count > 0)
{
arduinoPort.PortName = comportList.Items[0].ToString();
}
else
{
Console.WriteLine("No ports available");
connectButton.IsEnabled = false;
}
}
//Reset graph transform
public void resetTransform(Boolean useSlider = false)
{
Rect rectangleBounds = new Rect();
rectangleBounds = plot.RenderTransform.TransformBounds(new Rect(0, 0, plot.Width, plot.Height));
//Add transformgroup to plot
double yscale = plot.Height / view.YMAX; //YMAX is maximum plot value received
double xscale = plot.Width / view.XMAX; //XMAX is total ammount of plotted points
Matrix m = new Matrix(1, 0, 0, 1, 0, 0);
if (useSlider)
{
double maxVal = zoomBar.ActualWidth - outPoint.Width;
double outP = Canvas.GetLeft(outPoint); //points position relative to the scrollbar
double inP = Canvas.GetLeft(inPoint);
double delta = (outP - inP);
double factor = (maxVal / delta) * xscale;
double mappedinP = (inP / maxVal) * view.XMAX;
anchorOut = (outP / maxVal) * view.XMAX;
anchorIn = (inP / maxVal) * view.XMAX;
double center = (anchorOut + anchorIn) / 2;
m.Translate(-anchorIn, 0); //Move graph to inpoint
m.ScaleAt(factor, -yscale, 0, 0); //scale around the inpoint, with a factor so that outpoint is 600px further away
m.Translate(0, plot.Height); //to compensate the flipped graph, move it back down
}
scale = new ScaleTransform(m.M11, m.M22, 0, 0); //save scale factors in a scaletransform for reference
signals.scaleSignalStrokes(scale); //Scale the plotlines to compensate for canvas scaling
MatrixTransform matrixTrans = new MatrixTransform(m); //Create matrixtransform
plot.RenderTransform = matrixTrans; //Apply to canvas
}
