function init(basePath) {
    var action = new RGuiAction(qsTranslate("DEMImport", "&DEM数据导入"), RMainWindowQt.getMainWindow());
    action.setRequiresDocument(true);
    action.setScriptFile(basePath + "/DEMImport.js");
    action.setRequiresSelection(true);//灰色显示，无法操作
    // action.setIcon(basePath + "/DEMImport.svg");
    action.setGroupSortOrder(90004);
    action.setSortOrder(100);
    action.setWidgetNames(["GroundDataImportMenu"]);
}