| ArcGIS Developer Help (ESRI.ArcGIS.GeoAnalyst) |
Provides access to additional members that control the Interpolating of a GeoDataset.
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.
Members
| Description | ||
|---|---|---|
| IDW | Interpolates using IDW. | |
| Krige | Interpolates using kriging. | |
| NaturalNeighbor | Interpolates using natual neighbor. | |
| Spline | Interpolates using splining. | |
| TopoToRasterByFile | Interpolates using AnuDem. | |
| Trend | Interpolates using trend surface. | |
| TrendWithRms | Interpolates using trend surface with optional rms file. | |
| Variogram | Interpolates using Variogram. |
Classes that implement IInterpolationOp3
| Classes | Description |
|---|---|
| RasterInterpolationOp | Raster interpolation operation class. |
Remarks
- Read the Working with ArcGIS Spatial Analyst objects technical document for general information on implementing Spatial Analyst operations.
private void CreateRasterFromPoints()
{
//1.将Shape文件读取成FeatureClass
//2.根据FeatureClass生成IFeatureClassDescriptor
//3.创建IRasterRaduis 对象
//设置Cell
//4.插值并生成表面
object obj = null;
AccessFileData af = new AccessFileData(Application.StartupPath+@"\Business");
IFeatureClass featureClass = af.GetFeatureClass("Rain_point");
IGeoDataset geo = featureClass as IGeoDataset;
object extend=geo.Extent;
object o=null;
IFeatureClassDescriptor feades = new FeatureClassDescriptorClass();
feades.Create(featureClass, null, "QNData");
IRasterRadius rasterrad=new RasterRadiusClass();
rasterrad.SetVariable(12, ref obj);
object dCell = 0.014800000;//可以根据不同的点图层进行设置
IInterpolationOp interpla = new RasterInterpolationOpClass();
IRasterAnalysisEnvironment rasanaenv = interpla as IRasterAnalysisEnvironment;
rasanaenv.SetCellSize(esriRasterEnvSettingEnum.esriRasterEnvValue, ref dCell);
rasanaenv.SetExtent(esriRasterEnvSettingEnum.esriRasterEnvValue, ref extend, ref o);
g_GeoDS_Raster = interpla.IDW((IGeoDataset)feades, 2, rasterrad, ref obj);
}
{
//1.将Shape文件读取成FeatureClass
//2.根据FeatureClass生成IFeatureClassDescriptor
//3.创建IRasterRaduis 对象
//设置Cell
//4.插值并生成表面
object obj = null;
AccessFileData af = new AccessFileData(Application.StartupPath+@"\Business");
IFeatureClass featureClass = af.GetFeatureClass("Rain_point");
IGeoDataset geo = featureClass as IGeoDataset;
object extend=geo.Extent;
object o=null;
IFeatureClassDescriptor feades = new FeatureClassDescriptorClass();
feades.Create(featureClass, null, "QNData");
IRasterRadius rasterrad=new RasterRadiusClass();
rasterrad.SetVariable(12, ref obj);
object dCell = 0.014800000;//可以根据不同的点图层进行设置
IInterpolationOp interpla = new RasterInterpolationOpClass();
IRasterAnalysisEnvironment rasanaenv = interpla as IRasterAnalysisEnvironment;
rasanaenv.SetCellSize(esriRasterEnvSettingEnum.esriRasterEnvValue, ref dCell);
rasanaenv.SetExtent(esriRasterEnvSettingEnum.esriRasterEnvValue, ref extend, ref o);
g_GeoDS_Raster = interpla.IDW((IGeoDataset)feades, 2, rasterrad, ref obj);
}