private void SplineForm_Paint(object sender, PaintEventArgs e)
{
// BSplineクラスの生成
Spline = new BSpline(cxs.ToArray(), cys.ToArray());
var ts = Enumerable.Range(0, 100).Select(t => t / 100.0).ToArray();
Spline.Interpolate(ts, out xs, out ys);
Graphics g = e.Graphics;
for (int i = 0; i < xs.Length; i += 2)
{
Point p = new Point((int)xs[i], (int)ys[i]);
Point pp = new Point((int)xs[i + 1], (int)ys[i + 1]);
g.DrawLine(pen, TranslatePos(p), TranslatePos(pp));
}
g.DrawLine(pen, TranslatePos(new Point(0, 0)), TranslatePos(new Point(100, 0)));
g.DrawLine(pen, TranslatePos(new Point(0, 0)), TranslatePos(new Point(0, 100)));
var cp = cpSize / 2;
for (int i = 0; i < cxs.Count; i++)
{
float x = (float)cxs[i];
float y = (float)cys[i];
Point drawPoint = TranslatePos(new Point((int)x, (int)y));
e.Graphics.FillRectangle(brush, drawPoint.X - cp, drawPoint.Y - cp, cpSize, cpSize);
e.Graphics.DrawString(x + " : " + y, Font, blkbrush, drawPoint.X, drawPoint.Y - 30);
}
// カーソルの上に座標を青字で表示
var pos = Cursor.Position;
pos = (PointToClient(pos));
e.Graphics.FillRectangle(CursolBrush, pos.X - cp, pos.Y - cp, cpSize, cpSize);
var transPos = DrawPosToDataPos((pos));
e.Graphics.DrawString(transPos.X + " : " + transPos.Y, Font, CursolBrush, pos.X, pos.Y - 30);
}
