private void layerpath_SelectedIndexChanged(object sender, EventArgs e)
{
double Tmpincrement;
IRasterLayer pLayer;
int selindex = -1;
for (int i = 0; i < mainfrm.mainMap.LayerCount; i++)
{
if (mainfrm.mainMap.get_Layer(i).Name == layerpath.Text)
{
selindex = i;
}
}
if (selindex == -1)
{
return;
}
pLayer = (IRasterLayer)mainfrm.mainMap.get_Layer(selindex);
try
{
pRster = pLayer.Raster;
IRasterBandCollection pRasterBandCol;
pRasterBandCol = (IRasterBandCollection)pRster;
IRasterBand pRasterBand;
pRasterBand = pRasterBandCol.Item(0);
pRasterBand.ComputeStatsAndHist();
IRasterStatistics pRasterStatistic;
pRasterStatistic = pRasterBand.Statistics;
maxValue = (float)pRasterStatistic.Maximum;
minValue = (float)pRasterStatistic.Minimum;
//先求每个等分间距
DataRow FilterRow;
Tmpincrement = (maxValue - minValue) / Convert.ToInt16(CmbLineCount.Text);
FilterDataTable.Rows.Clear();
for (int i = 1; i <= Convert.ToInt16(CmbLineCount.Text); i++)
{
FilterRow = FilterDataTable.NewRow();
FilterRow[0] = Convert.ToString(minValue + Tmpincrement * (i - 1)) + "-" + Convert.ToString(minValue + Tmpincrement * i);
FilterRow[1] = i;
FilterDataTable.Rows.Add(FilterRow);
}
DataGridFilterData.DataSource = FilterDataTable;
DataGridFilterData.Refresh();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
}
private void Reclassfy_Load(object sender, EventArgs e)
{
List <string> layerpathList = new List <string>();
layerpathList = GetLayerPath();
if (layerpathList == null)
{
return;
}
foreach (string item in layerpathList)
{
layerpath.Items.Add(item);
//selectcomboBox.Items.Add(item);
}
DataRow FilterRow;
DataColumn ContourLineOldValue = new DataColumn("旧值", System.Type.GetType("System.String"));
DataColumn ContourLineNewValue = new DataColumn("新值", System.Type.GetType("System.Int32"));
try
{
FilterDataTable.Columns.Add(ContourLineOldValue);
FilterDataTable.Columns.Add(ContourLineNewValue);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
DataGridFilterData.DataSource = FilterDataTable;
DataGridFilterData.Refresh();
FilterDataTable.Rows.Clear();
for (int i = 0; i < FilterDataTable.Rows.Count; i++)
{
FilterDataTable.Rows[i].Delete();// 'RemoveAt(i)
}
CmbLineCount.Text = "5";
FilterDataTable.Rows.Clear();
//ComboBoxInLayer.Items.Clear();
//for (int i = 0; i < FrmGISMain.m_mapControl.LayerCount; i++)
//{
// ILayer pLayer;
// pLayer = FrmGISMain.m_mapControl.get_Layer(i);
// if (pLayer is IRasterLayer)
// {
// ComboBoxInLayer.Items.Add(pLayer.Name);
// }
//}
}
private void CmbLineCount_SelectedIndexChanged(object sender, EventArgs e)
{
if (layerpath.Text.Length > 0)
{
//先求每个等分间距
float Tmpincrement;
DataRow FilterRow;
Tmpincrement = (maxValue - minValue) / Convert.ToInt16(CmbLineCount.Text);
FilterDataTable.Rows.Clear();
for (int i = 1; i <= Convert.ToInt16(CmbLineCount.Text); i++)
{
FilterRow = FilterDataTable.NewRow();
FilterRow[0] = Convert.ToString(minValue + Tmpincrement * (i - 1)) + "~" + Convert.ToString(minValue + Tmpincrement * i);
FilterRow[1] = i;
FilterDataTable.Rows.Add(FilterRow);
}
DataGridFilterData.DataSource = FilterDataTable;
DataGridFilterData.Refresh();
}
}
public void Reclassify()
{
InitColorRamp();
IRasterWorkspace pRWS;
IWorkspaceFactory pWorkspaceFactory;
pWorkspaceFactory = new RasterWorkspaceFactory();
String wsp;
int r;
int l;
r = ComboBoxInLayer.Text.LastIndexOf("\\");
l = ComboBoxInLayer.Text.LastIndexOf(".");
wsp = ComboBoxInLayer.Text.Substring(0, r);
pRWS = (IRasterWorkspace)pWorkspaceFactory.OpenFromFile(wsp, 0);
try
{
string ws = System.IO.Path.GetDirectoryName(ComboBoxInLayer.Text);
string fbs = System.IO.Path.GetFileName(ComboBoxInLayer.Text);
IWorkspaceFactory pWork = new RasterWorkspaceFactory();
IRasterWorkspace pRasterWs = pWork.OpenFromFile(ws, 0) as IRasterWorkspace;
pRster = pRasterWs.OpenRasterDataset(fbs).CreateDefaultRaster();
IRasterBandCollection pRasterBandCol;
pRasterBandCol = (IRasterBandCollection)pRster;
IRawPixels pRawpixel;
pRawpixel = (IRawPixels)pRasterBandCol.Item(0);
IRasterProps pRasterProps;
pRasterProps = (IRasterProps)pRawpixel;
IPnt pSize;
pSize = new DblPnt();
pSize.SetCoords(pRasterProps.Width, pRasterProps.Height);
IPixelBlock pPixelBlock;
pPixelBlock = pRawpixel.CreatePixelBlock(pSize);
IPnt pPnt;
pPnt = new DblPnt();
pPnt.X = 0; //the origin (top left corner) of the PixelBlock
pPnt.Y = 0;
pRawpixel.Read(pPnt, pPixelBlock);
float PixelValue;
minValue = 10000000;
maxValue = 0;
List <double> allValue = new List <double>();
for (int i = 0; i < pPixelBlock.Width; i++)
{
for (int j = 0; j < pPixelBlock.Height; j++)
{
PixelValue = (float)pPixelBlock.GetVal(0, i, j);
allValue.Add(PixelValue);
if (PixelValue != null)
{
if (PixelValue > maxValue)
{
maxValue = PixelValue;
}
if (PixelValue < minValue)
{
minValue = PixelValue;
}
}
}
}
IRasterBand pRasterBand = new RasterBand();
pRasterBand = pRasterBandCol.Item(0);
pRasterBand.ComputeStatsAndHist();
IRasterStatistics pRasterStatistic;
//double[] amount = pRasterBand.Histogram.Counts;
pRasterStatistic = pRasterBand.Statistics;
maxValue = (float)pRasterStatistic.Maximum;
minValue = (float)pRasterStatistic.Minimum;
//if (comboBox1.Text.Trim() == "等间隔")
//{//先求每个等分间距
float Tmpincrement;
DataRow FilterRow;
Tmpincrement = (maxValue - minValue) / Convert.ToInt16(CmbLineCount.Text);
FilterDataTable.Rows.Clear();
for (int i = 1; i <= Convert.ToInt16(CmbLineCount.Text); i++)
{
FilterRow = FilterDataTable.NewRow();
FilterRow[0] = Convert.ToString(minValue + Tmpincrement * (i - 1)) + "~" + Convert.ToString(minValue + Tmpincrement * i);
FilterRow[1] = i;
FilterRow[2] = i;
FilterDataTable.Rows.Add(FilterRow);
}
DataGridFilterData.DataSource = FilterDataTable;
DataGridFilterData.Refresh();
// }
//else
// {
////allValue.Sort();
////List<double> valuesort = new List<double>();
////valuesort = BublleSort(allValue);
//allValue.Sort();
//int amount = pPixelBlock.Width * pPixelBlock.Height;
//int Tmpincrement;
//DataRow FilterRow;
//Tmpincrement = (amount) / Convert.ToInt16(CmbLineCount.Text);
//FilterDataTable.Rows.Clear();
//for (int i = 1; i < Convert.ToInt16(CmbLineCount.Text); i++)
//{
// FilterRow = FilterDataTable.NewRow();
// if (allValue[Tmpincrement * (i - 1)] == allValue[Tmpincrement * (i)])
// break;
// FilterRow[0] = Convert.ToString(allValue[Tmpincrement * (i - 1)]) + "~" + Convert.ToString(allValue[Tmpincrement * (i)]);
// FilterRow[1] = i;
// FilterDataTable.Rows.Add(FilterRow);
//}
//if (allValue[Tmpincrement * Convert.ToInt16(CmbLineCount.Text)] != maxValue)
//{
// FilterRow = FilterDataTable.NewRow();
// FilterRow[0] = Convert.ToString(allValue[Tmpincrement * Convert.ToInt16(CmbLineCount.Text)]) + "~" + Convert.ToString(maxValue);
// FilterRow[1] = Convert.ToInt16(CmbLineCount.Text);
// FilterDataTable.Rows.Add(FilterRow);
//}
//DataGridFilterData.DataSource = FilterDataTable;
//DataGridFilterData.Refresh();
//}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
}
private void BtnInput_Click(object sender, EventArgs e)
{
OpenFileDialog OpenFileDlg = new OpenFileDialog();
String strPath; // '文件名
OpenFileDlg.FileName = "";
OpenFileDlg.Filter = "tif files (*.tif)|*.tif|All files (*.*)|*.*"; //过滤文件类型
OpenFileDlg.FilterIndex = 2;
OpenFileDlg.ShowDialog();
strPath = OpenFileDlg.FileName.Trim();
layerpath.Text = strPath;
//获取图层的栅格信息
IRasterWorkspace pRWS;
IWorkspaceFactory pWorkspaceFactory;
pWorkspaceFactory = new RasterWorkspaceFactory();
String wsp;
int r;
int l;
r = layerpath.Text.LastIndexOf("\\");
l = layerpath.Text.LastIndexOf(".");
wsp = layerpath.Text.Substring(0, r);
pRWS = (IRasterWorkspace)pWorkspaceFactory.OpenFromFile(wsp, 0);
try
{
string ws = Path.GetDirectoryName(layerpath.Text);
string fbs = Path.GetFileName(layerpath.Text);
IWorkspaceFactory pWork = new RasterWorkspaceFactory();
IRasterWorkspace pRasterWs = pWork.OpenFromFile(ws, 0) as IRasterWorkspace;
pRster = pRasterWs.OpenRasterDataset(fbs).CreateDefaultRaster();
//pRster = pRWS.OpenRasterDataset(sp)
IRasterBandCollection pRasterBandCol;
pRasterBandCol = (IRasterBandCollection)pRster;
IRawPixels pRawpixel;
pRawpixel = (IRawPixels)pRasterBandCol.Item(0);
IRasterProps pRasterProps;
pRasterProps = (IRasterProps)pRawpixel;
IPnt pSize;
pSize = new DblPnt();
pSize.SetCoords(pRasterProps.Width, pRasterProps.Height);
IPixelBlock pPixelBlock;
pPixelBlock = pRawpixel.CreatePixelBlock(pSize);
IPnt pPnt;
pPnt = new DblPnt();
pPnt.X = 0; //the origin (top left corner) of the PixelBlock
pPnt.Y = 0;
pRawpixel.Read(pPnt, pPixelBlock);
float PixelValue;
minValue = 10000000;
maxValue = 0;
for (int i = 0; i < pPixelBlock.Width; i++)
{
for (int j = 0; j < pPixelBlock.Height; j++)
{
PixelValue = (float)pPixelBlock.GetVal(0, i, j);
if (PixelValue != null)
{
if (PixelValue > maxValue)
{
maxValue = PixelValue;
}
if (PixelValue < minValue)
{
minValue = PixelValue;
}
}
}
}
IRasterBand pRasterBand;
pRasterBand = pRasterBandCol.Item(0);
pRasterBand.ComputeStatsAndHist();
IRasterStatistics pRasterStatistic;
pRasterStatistic = pRasterBand.Statistics;
maxValue = (float)pRasterStatistic.Maximum;
minValue = (float)pRasterStatistic.Minimum;
//先求每个等分间距
float Tmpincrement;
DataRow FilterRow;
Tmpincrement = (maxValue - minValue) / Convert.ToInt16(CmbLineCount.Text);
FilterDataTable.Rows.Clear();
for (int i = 1; i < Convert.ToInt16(CmbLineCount.Text); i++)
{
FilterRow = FilterDataTable.NewRow();
FilterRow[0] = Convert.ToString(minValue + Tmpincrement * (i - 1)) + "~" + Convert.ToString(minValue + Tmpincrement * i);
FilterRow[1] = i;
FilterDataTable.Rows.Add(FilterRow);
}
DataGridFilterData.DataSource = FilterDataTable;
DataGridFilterData.Refresh();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
}
