栅格表面分析等值线坡度坡向AEC

栅格表面分析--等值线,坡度,坡向(AE+C#)

?using System;

using System.Collections.Generic;

using System.Text;

using ESRI.ArcGIS.Analyst3D;

using ESRI.ArcGIS.Carto;

using ESRI.ArcGIS.Controls;

using ESRI.ArcGIS.DataSourcesFile;

using ESRI.ArcGIS.DataSourcesGDB;

using ESRI.ArcGIS.DataSourcesRaster;

using ESRI.ArcGIS.Display;

using ESRI.ArcGIS.esriSystem;

using ESRI.ArcGIS.GeoAnalyst;

using ESRI.ArcGIS.Geodatabase;

using ESRI.ArcGIS.Geometry;

/*

* 表面分析ArcEngine + C#

* 2011.3.10 xyj

* wxuyongjun@

*

* */

namespace SpatialAnalysis.Surface_Analysis

{

class SurfaceCommonFunction

{

/// <summary>

/// 创建等值线

/// </summary>

/// <param name="raster"></param>栅格集

/// <param name="contourList"></param>等值间隔

/// <param name="smooth"></param>是否平滑

/// <param name="maxDeviation"></param>平滑的最大背离值

/// <param name="contourLineClass"></param>等值线矢量要素集

/// <param name="pGeoDataset"></param>地理要素集

public static void CreateRasterContour(IRaster raster, double[] contourList, bool smooth, double maxDeviation, out IFeatureClass contourLineClass, out IGeoDataset pGeoDataset)

{

RasterSurfaceOpClass class2 = new RasterSurfaceOpClass();

object missing = System.Type.Missing;

object contoursArray = contourList;

IGeoDataset geoDataset = raster as IGeoDataset;

pGeoDataset = class2.ContourList(geoDataset, ref contoursArray); contourLineClass = pGeoDataset as IFeatureClass;

IFields fields = contourLineClass.Fields;

IField[] fieldArray = new IField[fields.FieldCount];

for (int i = 0; i < fields.FieldCount; i++)

{

fieldArray[i] = fields.get_Field(i);

}

if (smooth)

{

IFeatureCursor o = contourLineClass.Search(null, false);

if (o != null)

{

IFeature feature = o.NextFeature();

for (int j = 0; feature != null; j++)

{

IPolyline shape = feature.Shape as IPolyline;

shape.Smooth(maxDeviation);

feature.Shape = shape;

feature.Store();

feature = o.NextFeature();

}

System .Runtime .InteropServices . Marshal.ReleaseComObject(o);

}

else

{

System .Windows .Forms . MessageBox.Show("生成的等值线条数为0"); }

}

}

/// <summary>

/// 创建坡度集

/// </summary>

/// <param name="raster"></param>栅格数据

/// <param name="zFactor"></param>拉伸系数

/// <param name="type"></param>记

录类型{度，百分比}

/// <param name="pGeoDataset"></param>坡度集