private void RedrawFunction(FunctionToPlot fp)
{
var canvasWH = new Size(mCanvas.ActualWidth, mCanvas.ActualHeight);
{
// 線を引きます。
var p = new Polyline();
p.Stroke = Brushes.DarkOrange;
p.StrokeThickness = 1;
p.FillRule = FillRule.EvenOdd;
var pc = new PointCollection();
for (int i = 0; i <= canvasWH.Width; ++i)
{
double x = (double)i / canvasWH.Width;
double y = fp(x);
double yDisp = canvasWH.Height / 2 - mScale * y * canvasWH.Height / 2;
pc.Add(new System.Windows.Point(i, yDisp));
}
p.Points = pc;
mCanvas.Children.Add(p);
mElements.Add(p);
}
{
// 点を描きます。
for (int i = 0; i <= NumGridX; ++i)
{
double x = (double)i / NumGridX;
double y = fp(x);
double xDisp = x * canvasWH.Width;
double yDisp = canvasWH.Height / 2 - mScale * y * canvasWH.Height / 2;
AddCircle(new Vector(xDisp, yDisp), 5.0, Brushes.Black);
}
}
}
public void Redraw(FunctionToPlot fp, string title)
{
var WH = new Size(mCanvas.ActualWidth, mCanvas.ActualHeight);
mCanvas.Children.Clear();
mElements.Clear();
for (int i = 1; i < NumGridX; ++i)
{
AddLine(new Vector(i * WH.Width / NumGridX, 0), new Vector(i * WH.Width / NumGridX, WH.Height), Brushes.LightGray);
}
for (int i = 1; i < NumGridY; ++i)
{
AddLine(new Vector(0, i * WH.Height / NumGridY), new Vector(WH.Width, i * WH.Height / NumGridY), Brushes.LightGray);
}
AddLine(new Vector(0, WH.Height / 2), new Vector(WH.Width, WH.Height / 2), Brushes.Gray);
AddLine(new Vector(0, 0), new Vector(0, WH.Height), Brushes.Gray);
RedrawFunction(fp);
AddTextBlock(new Vector(0, WH.Height / 2), 10, Brushes.Black, "0");
for (int i = 1; i <= NumGridX; ++i)
{
double xOffs = 20;
if (i == NumGridX)
{
xOffs = 40;
}
AddTextBlock(new Vector(i * WH.Width / NumGridX - xOffs, WH.Height / 2), 10, Brushes.Black, string.Format("{0}/44100", i));
}
AddTextBlock(new Vector(WH.Width - 55, WH.Height / 2 + 20), 10, Brushes.Black, "Time(sec) →");
AddTextBlockV(new Vector(0, 60), 10, Brushes.Black, "Amplitude →");
AddTextBlock(new Vector(20, 12), 16, Brushes.Black, title);
}
