TeeChart缩放

/// <summary>
/// 缩放
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button6_Click(object sender, EventArgs e)
{
//缩放的技巧
//首先找到待缩放的区域，例如横轴10-30，纵轴4-8
//那么待放到的区域就是x=10;x=30;y=4;y=8;这四条线组成的矩形
//首先确定矩形的左上角的坐标，然后确定矩形的宽和高
try
{
if (tChart1 != null)
{
if (tChart1.Series.Count > )
{
int x1 = Convert.ToInt32(textBox8.Text);//x轴的起始
int x2 = Convert.ToInt32(textBox9.Text);//x轴的结束
int y1 = Convert.ToInt32(textBox11.Text);
int y2 = Convert.ToInt32(textBox10.Text);
int x; int y; int height; int width; Rectangle r;
Series series = tChart1.Series[]; //单独横向
//xmin = series.CalcXPosValue(x1);
//xmax = series.CalcXPosValue(x2);
//ymin = series.CalcYPosValue(tChart1.Axes.Left.MinYValue);
//ymax = series.CalcYPosValue(tChart1.Axes.Left.MaxYValue);
//x = xmin;
//y = ymax;
//height = ymin - ymax;
//width = xmax - xmin;
//Console.WriteLine("x:{0},y:{1}", x, y);
//Console.WriteLine("width:{0},height:{1}", width, height);
//r = new Rectangle(x, y, width, height);//a和b代表的是矩形左上角的点的坐标
//tChart1.Zoom.ZoomRect(r); //单独纵向
//ymin = series.CalcYPosValue(y1);
//ymax = series.CalcYPosValue(y2);
//xmin = series.CalcXPosValue(tChart1.Axes.Bottom.MinXValue);
//xmax = series.CalcXPosValue(tChart1.Axes.Bottom.MaxXValue);
//x = xmin;
//y = ymax;
//height = ymin - ymax;
//width = xmax - xmin;
//Console.WriteLine("x:{0},y:{1}", x, y);
//Console.WriteLine("width:{0},height:{1}", width, height);
//r = new Rectangle(x, y, width, height);
//tChart1.Zoom.ZoomRect(r); x = series.CalcXPosValue(x1);
y = series.CalcYPosValue(y2);
width = series.CalcXPosValue(x2)-series.CalcXPosValue(x1);
height = series.CalcYPosValue(y1)-series.CalcYPosValue(y2);
r = new Rectangle(x, y, width, height);
tChart1.Zoom.ZoomRect(r);
}
}
}catch
{
}
}