private void selectRasterCmb_SelectedIndexChanged(object sender, EventArgs e)
{
if (selectDBCmb.Text == null || selectRasterCmb.Text == null)
{
return;
}
RBandCmb.Items.Clear();
GBandCmb.Items.Clear();
BBandCmb.Items.Clear();
rds = new RasterDataSet(GDB);
rds.Open(selectRasterCmb.Text, 0);
//将波段添加到各个comoBox中
for (int i = 0; i < rds.GetBandNum(); i++)
{
RasBand = rds.GetRasterBand(i + 1);
RBandCmb.Items.Add("波段" + (i + 1));
GBandCmb.Items.Add("波段" + (i + 1));
BBandCmb.Items.Add("波段" + (i + 1));
}
//在地图空间中显示该图层
Map map = new Map();
themeLayer = new RasterLayer();
if (rds != null)
{
themeLayer.AttachData(rds);
}
map.Append(themeLayer);
this.mapControl.ActiveMap = map;
this.mapControl.Restore();
RBandCmb.Text = "";
GBandCmb.Text = "";
BBandCmb.Text = "";
if (RBandCmb.Items.Count >= 3 && GBandCmb.Items.Count >= 3 && BBandCmb.Items.Count >= 3)
{
RBandCmb.Enabled = true;
GBandCmb.Enabled = true;
BBandCmb.Enabled = true;
RBandCmb.SelectedIndex = 0;
GBandCmb.SelectedIndex = 1;
BBandCmb.SelectedIndex = 2;
}
else
{
RBandCmb.Enabled = false;
GBandCmb.Enabled = false;
BBandCmb.Enabled = false;
}
//显示图像信息
height = rds.GetPixelHeight();
width = rds.GetPixelWidth();
labelHeight.Text = height.ToString();
labelWidth.Text = Width.ToString();
labelHeight.Visible = true;
labelWidth.Visible = true;
//显示图像分辨率
resolutionX = rds.GetResolutionX();
resolutionY = rds.GetResolutionY();
labelResolutionX.Text = resolutionX.ToString();
labelResolutionY.Text = resolutionY.ToString();
labelResolutionX.Visible = true;
labelResolutionY.Visible = true;
//给分类器设置参数
/*
* textBox2.Text = "4";
* textBox3.Text = "16";
* textBox4.Text = "20";
* textBox5.Text = "0.01";
* textBox9.Text = "0.005";
* textBox8.Text = "9.8";
* textBox7.Text = "5";
* textBox6.Text = "6.4";
*/
}