private void FormMain_Load(object sender, EventArgs e)
{
Ctrl_Tab.SelectedIndex = 1;
Ctrl_Tab.SelectedIndex = 0;
IFeatureWorkspace pFWorkspace = OpenWorkspace(@"data.gdb") as IFeatureWorkspace;
INetworkDataset networkDataset = OpenNetworkDataset(pFWorkspace as IWorkspace, "rdCenLineDataSet_ND", "rdCenLineDataSet");
m_NAContext = CreateSolverContext(networkDataset);
INetworkLayer pNetworkLayer = new NetworkLayerClass();
pNetworkLayer.NetworkDataset = networkDataset;
ILayer pLayer = pNetworkLayer as ILayer;
pLayer.Name = "NetworkLayer";
Ctrl_Map.AddLayer(pLayer, 0);
IFeatureLayer pJunctionLayer = new FeatureLayerClass();
pJunctionLayer.FeatureClass = pFWorkspace.OpenFeatureClass("rdCenLineDataSet_ND_Junctions");
pJunctionLayer.Name = pJunctionLayer.FeatureClass.AliasName;
Ctrl_Map.AddLayer(pJunctionLayer, 0);
IFeatureLayer pRoadLayer = new FeatureLayerClass();
pRoadLayer.FeatureClass = pFWorkspace.OpenFeatureClass("road_toLine");
pRoadLayer.Name = pRoadLayer.FeatureClass.AliasName;
Ctrl_Map.AddLayer(pRoadLayer, 0);
INALayer pNALayer = m_NAContext.Solver.CreateLayer(m_NAContext);
(pNALayer as ILayer).Name = m_NAContext.Solver.DisplayName;
Ctrl_Map.AddLayer(pNALayer as ILayer, 0);
}
private void Btn_Slope_Click(object sender, EventArgs e)
{
IRasterLayer pFromRasterLayer = m_selectedLayer as IRasterLayer;
if (pFromRasterLayer == null)
{
MessageBox.Show("非栅格图层");
return;
}
IRaster pFromRaster = pFromRasterLayer.Raster;
IRasterBandCollection pFromRasterBandCollection = pFromRaster as IRasterBandCollection;
IRasterBand pFromRasterBand = pFromRasterBandCollection.Item(0);
IRasterDataset pFromRasterDataset = pFromRasterBand as IRasterDataset;
IWorkspaceFactory pWorkspaceFactory = new RasterWorkspaceFactoryClass();
IRasterWorkspace pRasterWorkspace = pWorkspaceFactory.OpenFromFile(@"DB", 0) as IRasterWorkspace;
ISurfaceOp pSurfaceOp = new RasterSurfaceOpClass();
IRasterAnalysisEnvironment pRasterAnalysisEnvironment;
pRasterAnalysisEnvironment = pSurfaceOp as IRasterAnalysisEnvironment;
pRasterAnalysisEnvironment.OutWorkspace = pWorkspaceFactory as IWorkspace;
object zFactor = new object();
IGeoDataset pGeoDataset, pRasterGetDataset;
pRasterGetDataset = pFromRasterDataset as IGeoDataset;
pGeoDataset = pSurfaceOp.Slope(pRasterGetDataset, esriGeoAnalysisSlopeEnum.esriGeoAnalysisSlopePercentrise, ref zFactor);
IRasterBandCollection pOutRasterBandCollection = pGeoDataset as IRasterBandCollection;
string strOutRasterName = pFromRasterLayer.Name.Split('.')[0] + "_slope.tif";
pOutRasterBandCollection.SaveAs(strOutRasterName, pRasterWorkspace as IWorkspace, "TIFF");
IRasterDataset pNewRasterDataset = pRasterWorkspace.OpenRasterDataset(strOutRasterName);
IRasterLayer pNewRasterLayer = new RasterLayerClass();
pNewRasterLayer.CreateFromDataset(pNewRasterDataset);
ILayer pNewLayer = pNewRasterLayer as ILayer;
Ctrl_Map.AddLayer(pNewLayer);
}