加载shp文件

13693261870

2024-04-24 614480aec772ce65205fa9d674e1ee8c623f375f

 TEWin/FrmWin.cs

@@ -38,6 +38,8 @@

        string angleGroupName = "角量算";

        string shpGroupName = "矢量数据";

        string mainUrl = Application.StartupPath;

        public FrmWin()
@@ -178,6 +180,8 @@
                    InvokeOsgbLab(); break;
                case 0xd7: // 打开fly
                    SG.Open(this.fly); break;
                case 0xd8: // 加载shp
                    LoadShp(); break;
            }
        }

@@ -492,5 +496,40 @@
            ExecCmd(new List<string> { "taskkill /f /t /im OSGBLab.exe" });
            RunExe(GetAbsolutePath("osgblabPath"), null, false);
        }

        private void LoadShp()
        {
            OpenFileDialog dialog = new OpenFileDialog();
            dialog.Filter = "Shapefile文件 (*.shp)|*.shp";
            dialog.RestoreDirectory = true;

            if (dialog.ShowDialog() == DialogResult.OK)
            {
                LoadShp(dialog.FileName);
            }
        }

        private void LoadShp(string shpFile)
        {
            string gid = GetGroupIdByName(shpGroupName);
            string conn = "FileName=" + shpFile + ";TEPlugName=OGR;"; // 连接字符串
            string shpName = Path.GetFileNameWithoutExtension(shpFile);

            IFeatureLayer71 layer = SG.Creator.CreateFeatureLayer(shpName, conn, gid); // 加载shp
            layer.Refresh();

            SG.Navigate.FlyTo(layer.ID);
        }

        private string GetGroupIdByName(string groupName)
        {
            string gid = SG.ProjectTree.FindItem(groupName);
            if (string.IsNullOrEmpty(gid) || !SG.ProjectTree.IsGroup(gid))
            {
                gid = SG.ProjectTree.CreateGroup(groupName, SG.ProjectTree.RootID);
            }

            return gid;
        }
    }
}