private void BtnCalculate_Click(object?sender, Avalonia.Interactivity.RoutedEventArgs e)
{
if (double.TryParse(tbStart.Text, out double xStart) &&
double.TryParse(tbEnd.Text, out double xEnd) &&
double.TryParse(tbStep.Text, out double step) &&
xStart < xEnd && step > 0)
{
spValues.Children.Clear();
double x = xStart;
do
{
var dp = new DockPanel();
dp.Children.Add(new TextBlock()
{
Text = x.ToString(),
Width = window.MinWidth / 2,
TextAlignment = Avalonia.Media.TextAlignment.Center
});
dp.Children.Add(new TextBlock()
{
Text = Math.Round(rpn.GetNewRpnWithSetVariable(x).Calculate(), 3).ToString(),
Width = window.MinWidth / 2,
TextAlignment = Avalonia.Media.TextAlignment.Center
});
spValues.Children.Add(dp);
x = Math.Round(x + step, 3);
} while (x <= xEnd);
}
}
//Изменение отображаемого значения графика функции в зависимости от позиции мыши
private static void GraphCanvas_PointerMoved(object?sender, PointerEventArgs e)
{
if (!mousePressed && expression != null)
{
TextBlock tbXCoord = TheMainWindow.FindControl <TextBlock>("tbXCoord");
TextBlock tbYCoord = TheMainWindow.FindControl <TextBlock>("tbYCoord");
var canvas = (Canvas)sender;
double x = (e.GetPosition(canvas).X - GraphWidth / 2 - Offset.X) * Zoom;
double y = rpn.GetNewRpnWithSetVariable(x).Calculate();
tbXCoord.Text = "x: " + Math.Round(x, 2).ToString();
tbYCoord.Text = "f(x): " + Math.Round(y, 2).ToString();
}
}