public QsVector Point(double t)
{
var x = fx.Execute(t);
var y = fy.Execute(t);
var z = fz.Execute(t);
return(new QsVector(x.ToQuantity().ToScalar(), y.ToQuantity().ToScalar(), z.ToQuantity().ToScalar()));
}
void Sliders_ValueChanged(object sender, RoutedPropertyChangedEventArgs <double> e)
{
Dictionary <string, double> parameters = new Dictionary <string, double>();
Slider VariableSlider = null;
foreach (var sl in ParametersPanel.Children)
{
var s = sl as Slider;
if (s != null)
{
string p = (string)s.Tag;
if (p.Equals(VariableTextBox.Text, StringComparison.OrdinalIgnoreCase))
{
VariableSlider = s;
}
else
{
parameters.Add(p, s.Value);
}
}
}
// show slider
if (VariableSlider != null)
{
var step = double.Parse(IntervalTextBox.Text);
string vparameter = (string)VariableSlider.Tag;
parameters.Add(vparameter, VariableSlider.Minimum);
List <double> xl = new List <double>();
List <double> yl = new List <double>();
// show y=f(x)
for (double x = VariableSlider.Minimum; x <= VariableSlider.Value; x += step)
{
parameters[vparameter] = x;
xl.Add(x);
var y = CurrentExpression.Execute(parameters);
yl.Add(y);
}
lgraph.Plot(xl, yl);
}
}