編號

後綴

文件說明

1

.shp

基本文件，存儲地理要素的幾何圖形信息；

2

.dbf

基本文件，存儲地理要素的屬性信息；

3

.shx

基本文件，存儲圖形要素與屬性信息的索引；

4

.prj

可選文件，存儲數據的空間參考信息；

5

.sbn/.sbx

可選文件，存儲數據的空間索引信息（ESRI創建的空間索引）；

6

.qix

可選文件，存儲數據的空間索引信息（PIE創建的空間索引）；

第一步

創建字段信息並添加值，創建空間參考，保存等

第二步

創建矢量要素數據集

接口/類

方法/屬性

說明

DataSource.DatasetFactory

CreateFeatureDataset(…)

創建要素數據集

Carto.LayerFactory

CreateDefaultFeatureLayer(…)

創建矢量圖層

Geometry.SpatialReferenceFactory

CreateSpatialReference(string strWkt)

創建空間參考

IFeatureDataset

CreateNewFeature()

創建新要素

IField

Name,AliasName,DefaultValue

字段屬性

IFields

AddField(IField ptrField)

添加字段

IFeature

SetValue(int nIndex, object field)

設置字段值

IFeatureClass

AddFeature(IFeature ptrFeature)

添加要素

項目路徑

百度雲盤地址下/PIE示例程序/04數據操作/02.內存矢量數據的創建

數據路徑

視頻路徑

百度雲盤地址下/PIE示例程序/04數據操作/02.內存矢量數據的創建.avi

示例代碼

 1     /// <summary>
 2         /// 創建內存矢量數據
 3         /// </summary>
 4         /// <param name="sender"></param>
 5         /// <param name="e"></param>
 6         private void toolStripButton_CreateMemShpData_Click(object sender, EventArgs e)
 7         { //1設置字段
 8             IField field1 = new Field("Name", FieldType.OFTString, 50, 1);
 9             field1.Name = "Name";
10             field1.AliasName = "名稱";
11 
12             IField field2 = new Field("Level", FieldType.OFTInteger, 50, 1);
13             field2.Name = "Level";
14             field2.AliasName = "級別";
15 
16             //2添加字段
17             IFields fields = new Fields();
18             fields.AddField(field1);
19             fields.AddField(field2);
20 
21             //3創建空間參考信息
22             ISpatialReference spatialReference = SpatialReferenceFactory.CreateSpatialReference((int)PIE.Geometry.GeoCSType.GeoCSType_WGS1984);
23             //4創建矢量要素集
24             IFeatureDataset newFeatureDataset = DatasetFactory.CreateFeatureDataset("", fields, GeometryType.GeometryPoint, spatialReference, "MEM");
25 
26             #region 5添加point 信息
27             //A POINT
28             IFeature feature = newFeatureDataset.CreateNewFeature();
29             IPoint point = new PIE.Geometry.Point();
30             point.PutCoords(90, 45);
31             feature.Geometry = point as IGeometry;
32 
33             feature.FID = 02;
34             feature.SetValue(0, "A");
35             feature.SetValue(1, 2);
36 
37             //B POINT
38             IFeature feature2 = newFeatureDataset.CreateNewFeature();
39             IPoint point2 = new PIE.Geometry.Point();
40             point2.PutCoords(93, 40);
41             feature2.Geometry = point2 as IGeometry;
42 
43             feature2.FID = 01;
44             feature2.SetValue(0, "B");
45             feature2.SetValue(1, 3);
46             #endregion
47 
48             newFeatureDataset.Name = "LayerA";//設置圖層的名稱
49             //第一種方法
50    //IFeatureLayer featureLayer = LayerFactory.CreateDefaultFeatureLayer(newFeatureDataset);
51             //第二種方法
52             IFeatureLayer featureLayer = new FeatureLayer();
53            // IFeatureClass fClass = new FeatureClass(newFeatureDataset);
54             featureLayer.FeatureClass = new FeatureClass(newFeatureDataset);
55             featureLayer.FeatureClass.AddFeature(feature);
56             featureLayer.FeatureClass.AddFeature(feature2);
57 
58             mapControlMain.FocusMap.AddLayer(featureLayer as ILayer);          mapControlMain.PartialRefresh(ViewDrawPhaseType.ViewAll);
59         }