private void comboBoxOpen_SelectedIndexChanged(object sender, EventArgs e)//选择图层并自动设置默认输出像元大小及图层路径
{
if (comboBoxOpen.Items.Count > 0)
{
txtSave.Text = "";
txtCellSize.Text = "0.02";
fileName = comboBoxOpen.SelectedItem.ToString();
ILayer pLayer = GetLayerByName(ref fileName);
//去除不可用的数据 ZQ 20110907
if (pLayer.Valid)
{
return;
}
IWorkspace pSourceWorkspace;
if (pLayer is IRasterLayer)//读取RasterLayer的路径名和像元大小值
{
IRasterLayer pRasterLayer = pLayer as IRasterLayer;
IRaster pRaster = pRasterLayer.Raster;
IRasterAnalysisProps pRasterAnalysisProps = (IRasterAnalysisProps)pRaster;
double pixH = pRasterAnalysisProps.PixelHeight;
txtCellSize.Text = Convert.ToString(pixH);
IDataset pDataset = pRasterLayer as IDataset;
pSourceWorkspace = pDataset.Workspace;
filePath = pSourceWorkspace.PathName;
filePath = filePath + fileName;
}
else if (pLayer is ITinLayer)//读取TIN数据的路径信息
{
ITinLayer pTinLayer = pLayer as ITinLayer;
ITin pTin = pTinLayer.Dataset;
IDataset pDataset = pTin as IDataset;
pSourceWorkspace = pDataset.Workspace;
filePath = pSourceWorkspace.PathName;
filePath = filePath + "\\" + fileName;
}
btnSure.Enabled = true;
}
else
{
btnSure.Enabled = false;
}
}
private void comboBoxOpenraster_SelectedIndexChanged(object sender, EventArgs e)
{
if (comboBoxOpenraster.Items.Count > 0)
{
fileName_raster = comboBoxOpenraster.SelectedItem.ToString();
ILayer pLayer = GetLayerByName(ref fileName_raster);
IWorkspace pSourceWorkspace;
if (pLayer is IRasterLayer)//读取RasterLayer的路径名和像元大小值
{
IRasterLayer pRasterLayer = pLayer as IRasterLayer;
IRaster pRaster = pRasterLayer.Raster;
IRasterAnalysisProps pRasterAnalysisProps = (IRasterAnalysisProps)pRaster;
double pixH = pRasterAnalysisProps.PixelHeight;
txtCellSize.Text = Convert.ToString(pixH);
IDataset pDataset = pRasterLayer as IDataset;
pSourceWorkspace = pDataset.Workspace;
filePath_raster = pSourceWorkspace.PathName;
filePath_raster = filePath_raster + fileName_raster;
}
else if (pLayer is ITinLayer)
{
ITinLayer pTinLayer = pLayer as ITinLayer;
ITin pTin = pTinLayer.Dataset;
IDataset pDataset = pTin as IDataset;
pSourceWorkspace = pDataset.Workspace;
filePath_raster = pSourceWorkspace.PathName;
filePath_raster = filePath_raster + "\\" + fileName_raster;
}
btnSure.Enabled = true;
}
else
{
btnSure.Enabled = false;
btnSure.ForeColor = Color.Black;
}
}
private void btnOpenraster_Click(object sender, EventArgs e)
{
OpenFileDialog pOpenFileDialog = new OpenFileDialog();
pOpenFileDialog.Filter = "TIFF(*.tif)|*.tif|GRID(*.Grid)|*.grid|IMAGINE(*.img)|*.img";
if (pOpenFileDialog.ShowDialog() == DialogResult.OK)
{
comboBoxOpenraster.Text = pOpenFileDialog.FileName;
if (comboBoxOpenraster.Text != "")//获取打开的栅格数据的路径信息及像元值
{
IWorkspaceFactory pWorkspaceFactory = new RasterWorkspaceFactoryClass();
filePath_raster = comboBoxOpenraster.Text;
fileName_raster = System.IO.Path.GetFileName(comboBoxOpenraster.Text);
IRasterWorkspace pRasterWorkspace = pWorkspaceFactory.OpenFromFile(System.IO.Path.GetDirectoryName(filePath_raster), 0) as IRasterWorkspace;
IRasterDataset pRasterDataset = pRasterWorkspace.OpenRasterDataset(fileName_raster);
IRasterLayer pRasterLayer = new RasterLayerClass();
pRasterLayer.CreateFromDataset(pRasterDataset);
IRaster pRaster = pRasterLayer.Raster;
IRasterAnalysisProps pRasterAnalysisProps = (IRasterAnalysisProps)pRaster;
txtCellSize.Text = Convert.ToString(pRasterAnalysisProps.PixelHeight);
}
}
}
