[GDAL]写入shp

C#通过Wkt码构建shp，记录写不进去！

  static void WriteVectorFile()
         {
             string strVectorFile = "E:\\";
             // 注册所有的驱动
             Ogr.RegisterAll();
             //创建数据，这里以创建ESRI的shp文件为例
             string strDriverName = "ESRI Shapefile";
             Driver oDriver = Ogr.GetDriverByName(strDriverName);
             if (oDriver == null)
             {
                 Console.WriteLine("%s 驱动不可用！\n", strVectorFile);
                 return;
             }
             // 创建数据源
             DataSource oDS = oDriver.CreateDataSource(strVectorFile, null);
             if (oDS == null)
             {
                 Console.WriteLine("创建矢量文件【%s】失败！\n", strVectorFile);
                 return;
             }

             // 创建图层，创建一个多边形图层，这里没有指定空间参考，如果需要的话，需要在这里进行指定
             Layer oLayer = oDS.CreateLayer("TestPolygon", null, wkbGeometryType.wkbPolygon, null);
             if (oLayer == null)
             {
                 Console.WriteLine("图层创建失败！\n");
                 return;
             }

             // 下面创建属性表
             // 先创建一个叫FieldID的整型属性
             FieldDefn oFieldID = new FieldDefn("FieldID", FieldType.OFTInteger);
             oLayer.CreateField(oFieldID, );

             // 再创建一个叫FeatureName的字符型属性，字符长度为50
             FieldDefn oFieldName = new FieldDefn("FieldName", FieldType.OFTString);
             oFieldName.SetWidth();
             oLayer.CreateField(oFieldName, );
             FeatureDefn oDefn = oLayer.GetLayerDefn();

             // 创建三角形要素
             Feature oFeatureTriangle = new Feature(oDefn);
             oFeatureTriangle.SetField(, );
             oFeatureTriangle.SetField(, "三角形");
             Geometry geomTriangle = Geometry.CreateFromWkt("POLYGON ((0 0,20 0,10 15,0 0))");
             oFeatureTriangle.SetGeometry(geomTriangle);
             oLayer.CreateFeature(oFeatureTriangle);

             // 创建矩形要素
             Feature oFeatureRectangle = new Feature(oDefn);
             oFeatureRectangle.SetField(, );
             oFeatureRectangle.SetField(, "矩形");
             Geometry geomRectangle = Geometry.CreateFromWkt("POLYGON ((30 0,60 0,60 30,30 30,30 0))");
             oFeatureRectangle.SetGeometry(geomRectangle);
             oLayer.CreateFeature(oFeatureRectangle);

             // 创建五角形要素
             Feature oFeaturePentagon = new Feature(oDefn);
             oFeaturePentagon.SetField(, );
             oFeaturePentagon.SetField(, "五角形");
             Geometry geomPentagon = Geometry.CreateFromWkt("POLYGON ((70 0,85 0,90 15,80 30,65 15,70 0))");
             oFeaturePentagon.SetGeometry(geomPentagon);
             oLayer.CreateFeature(oFeaturePentagon);
             Console.WriteLine("\n数据集创建完成！\n");
         }

通过对象构建