private static void refreshGraph(MainWindow win)
{
Canvas canvas = win.DrawArea;
canvas.Children.Clear();
double height = win.DrawArea.ActualHeight;
double width = win.DrawArea.ActualWidth;
double angleStep = 4 * Math.PI / width;
drawAxes(win);
double lastX = 0;
double lastY = win.CoefA * win.FunctionProperty(-2 * Math.PI * win.CoefB);
for (int i = 1; i < width; i++)
{
double x = -2 * Math.PI + i * angleStep;
ComboItemDelegate function = win.FunctionProperty;
double value = (height / 2) * win.CoefA * function(x * win.CoefB);
double y = height / 2 - value;
Line line = new Line();
line.Stroke = Brushes.Black;
line.X1 = i;
line.Y1 = lastY;
line.X2 = i + 1;
line.Y2 = y;
canvas.Children.Add(line);
lastX = i + 1;
lastY = y;
}
}
public MainWindow()
{
InitializeComponent();
for (int i = -10; i < 0; i++)
{
ABox.Items.Add(i);
}
for (int i = 1; i <= 10; i++)
{
ABox.Items.Add(i);
BBox.Items.Add(i);
if (i == 1)
{
ABox.SelectedIndex = 10 + i;
BBox.SelectedIndex = 10 + i;
}
}
/* ABox.SelectedItem = 1;
* BBox.SelectedItem = 1;*/
ComboItemDelegate sin = Math.Sin;
ComboItemDelegate cos = Math.Cos;
ComboBoxItem sinItem = new ComboBoxItem();
sinItem.Tag = sin;
sinItem.Content = "Sin";
ComboBoxItem cosItem = new ComboBoxItem();
cosItem.Tag = cos;
cosItem.Content = "Cos";
FunBox.Items.Add(sinItem);
FunBox.Items.Add(cosItem);
FunBox.SelectedIndex = 0;
}
private void FunBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
ComboItemDelegate sin = Math.Sin, cos = Math.Cos;
FunctionProperty = (FunBox.SelectedIndex == 0 ? sin : cos);
}
