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";
*/
}
private void button1_Click(object sender, EventArgs e)
{
//获取参数
int ClassNums = int.Parse(this.ClassNums.Text);
int SampleStep = int.Parse(this.SampleStep.Text);
int MaxLoopCount = int.Parse(this.MaxLoopCount.Text);
double MoveThrs = double.Parse(this.MoveThrs.Text);
int MinCellNums = Convert.ToInt32(double.Parse(this.MinCellNums.Text) * form.width * form.height);
double MaxStd = double.Parse(this.MaxStd.Text);
int MaxLumpNums = int.Parse(this.MaxLumpNums.Text);
double MinInterClassDist = double.Parse(this.MinInterClassDist.Text);
string DstRasURL = "GDBP://MapGisLocal/" + form.selectDBCmb.Text + "/ras/" + this.DstRasURL.Text;
//获取待分类影像
RasterDataSet rds = form.themeLayer.GetData() as RasterDataSet;
//获取波段信息
int[] selectBands = new int[rds.BandCount];
for (int n = 1; n <= rds.BandCount; n++)
{
selectBands[n - 1] = n;
}
//构建栅格分类器
RasClass rc = new RasClass();
//设置待分类影像
rc.SetData(rds);
//设置处理范围
rc.SetCommonParam(selectBands, 0, 0, form.height, form.width);
//调用分类器
//非监督分类：ISODATA
int i = rc.RsIsoClusterUnsupervisedClassification(ClassNums, MaxStd, MaxLoopCount, MoveThrs, MinInterClassDist, MinCellNums, MaxLumpNums, SampleStep, DstRasURL);
if (i == 1)
{
MessageBox.Show("分类成功！");
//将分类结果展示到界面上
rds.Open(DstRasURL, 0);
//添加分类影像到数据库
form.selectRasterCmb.Text = this.DstRasURL.Text;
Map map = new Map();
form.themeLayer = new RasterLayer();
if (rds != null)
{
form.themeLayer.AttachData(rds);
}
map.Append(form.themeLayer);
form.mapControl.ActiveMap = map;
form.mapControl.Refresh();
this.Close();
}
else
{
MessageBox.Show("分类失败！");
}
}
private void button1_Click(object sender, EventArgs e)
{
int[] selectBands = new int[3];
//获取波段信息
int RBand = int.Parse(System.Text.RegularExpressions.Regex.Replace(form.RBandCmb.Text, @"[^0-9]+", ""));
int GBand = int.Parse(System.Text.RegularExpressions.Regex.Replace(form.GBandCmb.Text, @"[^0-9]+", ""));
int BBand = int.Parse(System.Text.RegularExpressions.Regex.Replace(form.BBandCmb.Text, @"[^0-9]+", ""));
selectBands[0] = RBand;
selectBands[1] = GBand;
selectBands[2] = BBand;
double minProbability = 0;
//获取参数
try
{
minProbability = double.Parse(this.minProb.Text);
}
catch (Exception ex) {
MessageBox.Show("参数“最小概率”输入非法");
return;
}
string DstRasURL = "GDBP://MapGisLocal/" + form.selectDBCmb.Text + "/ras/" + distanceURL.Text;
//MessageBox.Show(DstRasURL);
if (form.selectRasterCmb.Items.Contains(distanceURL.Text))
{
MessageBox.Show("该文件已存在！请重新输入文件名。");
distanceURL.Text = "";
return;
}
//获取待分类影像
RasterDataSet rds = form.themeLayer.GetData() as RasterDataSet;
//构建栅格分类器
RasClass rc = new RasClass();
//设置待分类影像
rc.SetData(rds);
//设置处理范围
rc.SetCommonParam(selectBands, 0, 0, form.height, form.width);
//调用分类器
//监督分类：最大似然法
int i = rc.RsMaxLiklihoodSupervisedClassification(minProbability, DstRasURL);
form.selectRasterCmb.Items.Add(distanceURL.Text);
if (i == 1)
{
MessageBox.Show("分类成功！");
//将分类结果展示到界面上
rds.Open(distanceURL.Text, 0);
//添加分类影像到数据库
form.selectRasterCmb.Text = distanceURL.Text;
Map map = new Map();
form.themeLayer = new RasterLayer();
if (rds != null)
{
form.themeLayer.AttachData(rds);
}
map.Append(form.themeLayer);
form.mapControl.ActiveMap = map;
form.mapControl.Refresh();
this.Close();
}
else
{
MessageBox.Show("分类失败！");
}
}
