Arcgis开发集锦.pdf

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1. 目录

1. 目录 .................................................................................................................................................................................................................................................1

2. 用 ArcEngine 的工具条添加图层要素..........................................................................................................................................................................................2

3. ArcEngine 中对 Feature 的编辑.....................................................................................................................................................................................................5

4. Feature 的概念 ................................................................................................................................................................................................................................6

5. 如何实现经度纬度到平面坐标的相互转换？(转载） ................................................................................................................................................................7

6. ArcEngine 中使用上下左右键移动地图功能的实现 ...................................................................................................................................................................9

13. Geometry 对象浅析 .................................................................................................................................................................................................................24

14. 空间查询与空间分析功能........................................................................................................................................................................................................31

15. AO 中的空间关系.....................................................................................................................................................................................................................32

16. ArcGIS Engine 中的相交分析的实现.....................................................................................................................................................................................34

17. GIS 基本概念集锦....................................................................................................................................................................................................................36

18. AE 开发中矢量图层叠加求交分析.........................................................................................................................................................................................40

19. 矢量数据分析 ...........................................................................................................................................................................................................................44

20. GIS 空间信息基本分析方法....................................................................................................................................................................................................45

21. 如何判断图形间的逻辑运算....................................................................................................................................................................................................48

22. AE 中 2 种方式 overlay............................................................................................................................................................................................................49

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29. ArcEngine 渲染的使用 ............................................................................................................................................................................................................99

30. 利用 ArcEngin 进行空间分析的简单应用- - ........................................................................................................................................................................106

31. IfeatureSelection:SelectFeatures 方法介绍.............................................................................................................................................................................111

32. 常用数据入 sde 库的代码......................................................................................................................................................................................................113

33. ArcEngine 开发感想 ...............................................................................................................................................................................................................118

34. Geometry 对象浅析 ...............................................................................................................................................................................................................120

35. AE 开发中的一些基本方法(1)数据连接...............................................................................................................................................................................130

2. 用 ArcEngine 的工具条添加图层要素

发现 AE 比起其它的组件 GIS 来要好用的多

于是去找了找资料

发现自带的帮助里有一个 MapEditing 的示例

但是从 AO 的示例改造而来

需要从按钮写起

想想如果这样搞的话

倒不如直接用 AO 算了

一直想省点事

在 AE 自带的工具条上做点文章

其实 AE 中也有一组相似的编辑按钮，是用于编辑 Graphics 的

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{

//清空图层

this.axMapControl1.Map.ClearLayers();

//加载服务器 SDE 地图信息

ESRI.ArcGIS.esriSystem.IpropertySet Proset = new ESRI.ArcGIS.esriSystem.PropertySetClass();

//属性集

ESRI.ArcGIS.Geodatabase.IWorkspaceFactory Fact;//工作空间仓库

ESRI.ArcGIS.Geodatabase.IWorkspace Workspace;//工作空间

Workspace = Fact.Open(Proset,Int32.Parse(this.Handle.ToString()));//填入属性集

ESRI.ArcGIS.Geodatabase.IFeatureWorkspace FeatureWorkspace;

FeatureWorkspace = Workspace as ESRI.ArcGIS.Geodatabase.IFeatureWorkspace;//传递给 Feature 工作空间

ESRI.ArcGIS.Geodatabase.IFeatureClass FeatureClass;

FeatureClass = FeatureWorkspace.OpenFeatureClass("SDE.BBBB");//填充所需 Feature 集合

ESRI.ArcGIS.Carto.FeatureLayer FLayer = new ESRI.ArcGIS.Carto.FeatureLayerClass();

FLayer.FeatureClass = FeatureClass;//将 Feature 加载到图层

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{

ESRI.ArcGIS.esriSystem.IAoInitialize aoi = new ESRI.ArcGIS.esriSystem.AoInitializeClass();

}

private void button1_Click(object sender, System.EventArgs e)

{

IGraphicsContainerSelect GraphicsContainerSelect = (IGraphicsContainerSelect)axMapControl1.Map;

if(GraphicsContainerSelect.ElementSelectionCount ==0)//判断是否选中图斑

{

MessageBox.Show("请选中欲导入图斑！");

return;

FeatureLayer = (IFeatureLayer)this.axMapControl1.get_Layer(0);//选中导入图层

FeatureClass = FeatureLayer.FeatureClass;//该图层的 feature 集

Dataset = (IDataset)FeatureClass;//该图层的数据集

WorkspaceEdit = (IWorkspaceEdit)Dataset.Workspace;//关联到编辑空间

WorkspaceEdit.StartEditing(true);//使之可编辑

WorkspaceEdit.StartEditOperation();//开始编辑

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WorkspaceEdit.StopEditing(true);//结束编辑并保存

IGraphicsContainer GraphicsContainer = (IGraphicsContainer)GraphicsContainerSelect;

GraphicsContainer.DeleteAllElements();//删除 graphic 图层

1.新建

2.修改

3.删除

涉及到的接口有以下几个

IWorkspaceEdit

IFeatureClass

IFeatureCursor

IFeature

其中 IWorkspaceEdit 用于启动编辑 开始编辑操作 结束编辑操作 结束编辑

IFeatureClass 是数据的所在地

spaceEdit.StartEditing(false);

spaceEdit.StartEditOperator();