Data Export

Feature Description

The Data Export function is used to export data from SuperMap iDesktopX into common formats, including ArcGIS formats, CAD formats, MapInfo formats, FileGDB formats, telecom formats, and more than 20 other common data formats, for use in related third-party software, enabling seamless data sharing and collaboration.

For supported export formats, please refer to the Data Import and Export Supported Formats page.

Function Entry

Start tab -> Data Processing drop-down menu -> Data Export.
In the workspace Manager -> Context menu of a Dataset or Datasource -> Export Dataset.

Operation Steps

Click the Start tab -> Data Processing drop-down menu -> Data Export button to open the Data Export dialog box.
Click the Add button on the toolbar, or double-click the Dataset cell in the list box. In the Select dialog box that appears, the left side lists all data sources in the current workspace, and the right side lists the names and types of all datasets in the selected data source. Users can select one or more datasets and click the OK button to add the files to be exported from the current workspace to the data list.
All added data will be displayed in the list box on the left side of the Data Export dialog box. Users can use the toolbar above the list box to add, remove datasets, or uniformly modify the properties of the export datasets. The list box description is as follows:
- Dataset: Displays the name of the dataset to be exported.
- Export Type: The system will automatically identify the export type format based on the selected dataset type. You can also click the drop-down button of the Export Type item and select other data formats from the drop-down list.
- Result File: The name of the exported file, which defaults to the same as the dataset name. Users can also rename the export file by double-clicking this column: select the dataset to be renamed, click the Result File item or press the F2 key on the keyboard, and the result file becomes editable, allowing you to enter a new file name as the exported file name.
- Export Path: This item displays the default path for data export. Users can also change the export path of a dataset: select the dataset whose export path needs to be modified, double-click the Export Path item, and in the Browse Folder window that appears, change the dataset's export path. Note: If the export path does not exist, the program will automatically create the destination folder.
- Overwrite: This checkbox is used to set whether to overwrite an existing file with the same name in the export path. If checked, existing files with the same name will be overwritten; if unchecked, the file will not be exported.
- Status: Before data export, the Status item displays Unconverted; if the data is exported successfully, it displays Succeed; if the data export fails, it displays Failed.
Users can select one or more files in the list box and set various parameters for the exported data in the parameters area on the right side of the Data Export dialog box. The parameters that can be set in the right-side parameters area vary depending on the selected export data format:
- Exporting Vector Data: This includes exporting to vector data such as SHP, CSV, DWG, Excel, etc. The parameters that need to be set are as follows (the settable parameters vary for different vector data exports; refer to actual operations for specifics):
  - Export Point as WKT: Only available when exporting to CSV. This checkbox is used to display or set whether to export the Point as WKT field.
  - Export Header: Only available when exporting to CSV. This checkbox is used to display or set whether to export the file header information.
  - Export Extended Field: Only available when exporting to AutoCAD files. This checkbox is used to display or set whether to export the extended fields of the AutoCAD file.
  - Export Extension Records: Only available when exporting to AutoCAD files. This checkbox is used to display or set whether to export the extension records of the AutoCAD file.
  - Export Borders: Only available when exporting to AutoCAD files. This checkbox is used to display or set whether to export the border data of the AutoCAD file.
  - Export Line Width: Only available when exporting to AutoCAD files. This checkbox is used to display or set whether to export the polyline width data in the AutoCAD file.
  - Object Color by Layer: Only available when exporting to AutoCAD files. If checked, the color properties of all objects after export will be uniformly set to ByLayer, and all objects under the same layer will have consistent colors. If objects under the same layer have inconsistent colors, the color of the same layer after export will match the color of the first object in the original layer. If unchecked, the exported object colors will follow the colors configured in the current desktop map.
  - Text Field Length Is Consistent with Source Data: Only available when exporting to ArcGIS Shapefile files. This checkbox is used to set whether to export the text field length of the ArcGIS Shapefile file consistently with the source data. If checked, the exported text field length will be consistent with the source data. If the field value exceeds the length limit, the excess part will be automatically truncated. If unchecked, the exported field length will be automatically adjusted based on the actual maximum length of all field values. This is the default option.
  - CAD Version: Only available when exporting to AutoCAD files. From the drop-down list to the right of this label, you can select the version number of the exported AutoCAD DWG File (*.dwg) or AutoCAD DXF File (*.dxf). Currently, AutoCAD R12, AutoCAD R13, AutoCAD R14, AutoCAD 2000, AutoCAD 2004, AutoCAD 2007 are provided. The default export version is AutoCAD 2013.
  - Style Mapping File: Only available when exporting to AutoCAD files. You can choose whether to export the style mapping file. For a description of the style mapping file, please refer to the relevant description in Import CAD Data.
  - Charset: The character encoding type used for the export dataset. To ensure the dataset displays correctly, an appropriate character set must be used. During export, the ASCII (Default) character set is used by default. The most common ASCII character set is used for displaying Roman numerals and letters, UTF-8 is used for displaying Simplified Chinese characters, and to meet the needs of cross-language and cross-platform computer display, the Unicode character set is used. For the list of character sets supported by the application, please refer to the Character Set List.
  - Filter Expression: By setting a filter expression, you can filter out objects that do not need to be exported, allowing only objects that meet the conditions to be exported. For information on how to use SQL expressions, please refer to SQL Expression.
  - Dataset List: When exporting to AutoCAD files, you can select the export datasets. Multiple datasets can be exported to a single DWG/DXF file.
- Exporting China Standard Vector Exchange Format:
  - VCT Version: Select the VCT export version. Three options are provided: cnsdtf_vct 1.0, landuse_vct 2.0, landuse_vct 3.0.
  - VCT Layer: Select a dataset as the VCT layer. Two methods, Config File and Custom, are provided for configuring the VCT layer:
    - Config File: Import an existing config file to configure the export dataset.
    - Custom: The configuration parameters provided vary depending on the VCT version. For details, please refer to the relevant description in Export VCT Data.
  - Charset: The character encoding type used for the export dataset. To ensure the dataset displays correctly, an appropriate character set must be used. During export, the ASCII (Default) character set is used by default. The most common ASCII character set is used for displaying Roman numerals and letters, UTF-8 is used for displaying Simplified Chinese characters, and to meet the needs of cross-language and cross-platform computer display, the Unicode character set is used. For the list of character sets supported by the application, please refer to the Character Set List.
- Exporting Telecom Files:
  - Dataset List: Select datasets of the corresponding type (point, line, area) based on the telecom file type to be exported. Multiple selections are allowed.
  - Field: Only available when exporting to Telecom Vector Text.
  - Charset: The character encoding type used for the export dataset. To ensure the dataset displays correctly, an appropriate character set must be used. During export, the ASCII (Default) character set is used by default. The most common ASCII character set is used for displaying Roman numerals and letters, UTF-8 is used for displaying Simplified Chinese characters, and to meet the needs of cross-language and cross-platform computer display, the Unicode character set is used. For the list of character sets supported by the application, please refer to the Character Set List.
  - Filter Expression: By setting a filter expression, you can filter out objects that do not need to be exported, allowing only objects that meet the conditions to be exported. For information on how to use SQL expressions, please refer to SQL Expression.
- Exporting File GeoDatabase Vector Files (FileGDB):
  - Dataset List: Select the export datasets. Multiple selections are allowed.
    - When export datasets are grouped, since the FileGDB data structure does not support sub-groups, sub-groups and their datasets are not exported by default; only datasets under the parent group are displayed.
    - To export sub-groups, use the Add button above to add datasets from the sub-groups to the list. After export, the sub-groups will lose their hierarchical relationship with the parent group and become parallel.
  - Append: Using the append function, the currently selected data for export can be appended to an existing File GDB file. The connection field for appending needs to be set.
  - Charset: The character encoding type used for the export dataset. To ensure the dataset displays correctly, an appropriate character set must be used. During export, the ASCII (Default) character set is used by default. The most common ASCII character set is used for displaying Roman numerals and letters, UTF-8 is used for displaying Simplified Chinese characters, and to meet the needs of cross-language and cross-platform computer display, the Unicode character set is used. For the list of character sets supported by the application, please refer to the Character Set List.
  - Retain Grouping: Provides the option to retain grouping. If this checkbox is checked, the dataset groups will be retained after exporting to a File GDB file; otherwise, they will not be retained.
    Note:
    Since the Feature Dataset in GDB has restrictions on dataset types, coordinate systems, etc., to ensure the complete export of datasets under a dataset group, the datasets under the dataset group must meet the following conditions:
    
    The dataset types under the dataset group are only 2D and 3D point, line, and region datasets. Tabular datasets will not be retained within the group after export, and other dataset types are not supported for export to FileGDB.
    
    All datasets under the dataset group must have the same coordinate system. If the coordinate systems are inconsistent, only datasets with the same coordinate system as the first dataset will be exported.
    
    The dataset group hierarchy under the current data source only has one level besides the root group, meaning there is no nested grouping under the dataset group.
  - Preserve 64-bit Integer Field Format: Used to specify whether to preserve the 64-bit integer field format during export. If checked, the original format of the long field will be preserved, and the exported data needs to be used in ArcGIS Pro 3.2 or later versions; if unchecked, the long field will be exported as double precision.
  - Filter Expression: By setting a filter expression, you can filter out objects that do not need to be exported, allowing only objects that meet the conditions to be exported. For information on how to use SQL expressions, please refer to SQL Expression.
- Exporting PersonalGDB Vector Files:
  - Dataset List: Select the datasets to be exported. Multiple selections are allowed.
  - Filter Expression: By setting a filter expression, you can filter out objects that do not need to be exported, allowing only objects that meet the conditions to be exported. For information on how to use SQL expressions, please refer to SQL Expression.
- Exporting GeoPackage Files:
  - Dataset List: Select the datasets to be exported. Only 2D/3D point, line, and region datasets can be exported. Dataset types such as CAD and raster are not supported.
  - Filter Expression: By setting a filter expression, you can filter out objects that do not need to be exported, allowing only objects that meet the conditions to be exported. For information on how to use SQL expressions, please refer to SQL Expression.
- Exporting GJB Files:
  - Dataset List: Select the export datasets. Multiple selections are allowed.
  - Charset: The character encoding type used for the export dataset. To ensure the dataset displays correctly, an appropriate character set must be used. During export, the ASCII (Default) character set is used by default. The most common ASCII character set is used for displaying Roman numerals and letters, UTF-8 is used for displaying Simplified Chinese characters, and to meet the needs of cross-language and cross-platform computer display, the Unicode character set is used. For the list of character sets supported by the application, please refer to the Character Set List.
  - Export Layer Type: The selectable layer information includes Measurement Control Point, Industrial and Agricultural Social and Cultural Facilities, Residential Area and Ancillary Facilities, Land Transportation, Pipeline, Water/Land, Submarine Geomorphology and Geology, Reefs/Shipwrecks/Obstacles, etc. The default is Measurement Control Point.
  - Filter Expression: By setting a filter expression, you can filter out objects that do not need to be exported, allowing only objects that meet the conditions to be exported. For information on how to use SQL expressions, please refer to SQL Expression.
- Exporting to Raster and Image Datasets:
  - Compression Method: When the export type is TIFF File, you can set the compression method for the export file. Four compression methods are provided: None, LZW, JPEG, and DEFLATE.
    - None: No compression.
    - LZW: Lossless compression, using an advanced string table compression to significantly improve the compression efficiency of image files.
    - JPEG: Lossy compression, a compression algorithm based on DCT discrete cosine transform, with a high compression ratio. The JPEG compression algorithm can only be used for unsigned 8-bit integer raster data (single or multiband), and can be applied to the first 12 bits of 16-bit data.
    - DEFLATE: Lossless compression. DEFLATE uses a lossless data compression algorithm that combines the LZ77 algorithm and Huffman coding.
  - Compression Ratio (%): This item is used to display or set the compression ratio for image files. The default compression ratio is 75%. This item is only available when the export file format is JPG File (*.jpg).
  - Coordinate Reference File: Click the Select button on the right to open the Open dialog box, where you can set the path of the coordinate reference file for the image data exported from the currently selected raster dataset. This item is only available when the export file format is JPG File (*.jpg), PNG File (*.png), Bitmap File (*.bmp), or GIF File (*.gif).
  - Export Affine Information to TFW File: This checkbox is used to display or set whether to export the affine transformation information (the mapping between image coordinates and geographic coordinate systems) to an external file. This checkbox is only available when the export file format is Tiff (*.tif). It is checked by default, meaning the affine information is exported to an external TFW file; otherwise, the projection will be exported to the Tiff file.
  Note:
  - When exporting an image dataset to JPG File (*.jpg), the width or height of the JPG file cannot exceed 65,500 pixels. There is no such restriction when exporting to PNG File (*.png).
Check the Auto Close Dialog After Export checkbox to control whether the dialog box closes automatically when the data export finishes. This checkbox is checked by default.
Click the Export button, and the system will batch export all datasets in the list box. The Export Progress window will display the overall progress of exporting all data in the batch export list, as well as the export progress of the single data currently being exported.

Note:

If all data sources in the current workspace are image data engines, the Export button will be grayed out and unavailable.
If an image data engine exists in the current workspace, when clicking the Add button in the Data Export window, the image data engine will appear in the data source list on the left side of the Select dialog box, but the image datasets under that data source cannot be added.
When exporting datasets in KML and KMZ formats, they must be in the WGS_1984 geographic coordinate system; otherwise, the export will fail.
When exporting vector data to a VCT file, the corresponding layer type for the VCT must be set; otherwise, the export will fail.
When importing or exporting telecom raster data, please note the following two points:
- The telecom raster format only supports the import and export of Grid type datasets.
- The telecom raster format only supports the import and export of raster data with a pixel bit depth of 16. When exporting a Grid dataset with a pixel bit depth lower than 16, the pixel bit depth will be automatically converted and uniformly converted to 16-bit.
When exporting a dataset's attribute table to a Microsoft Excel File, currently only up to 100,000 records can be exported at one time. If the dataset has 0 records, the export will fail.
uses a third-party TIF library, which currently supports exporting TIFF images with a maximum data volume of 4G. If the export data exceeds 4G, it is recommended to export the data in tiles or export it as SIT Image File (obsolete).
Due to third-party library limitations, the maximum data volume supported for export to SHP files is currently 4G. If the export data exceeds 4G, it is recommended to export the data as FileGDB files.
The field names in SHP files are stored based on the DBF specification, where the maximum allowed field length is 10 bytes (not character count). If a field name exceeds this limit during export, it will be automatically truncated. For example, the English field name "Population2025" will be truncated to "Population" during export, and the Chinese field name "行政区名称" will be truncated to "行政区" (UTF-8, one Chinese character occupies 3 bytes). If truncated names are duplicated, a sequence number will be automatically appended (e.g., "Populati_1", "Populati_2") to avoid conflicts. Therefore, when exporting to SHP, please verify the field name length and consider renaming fields to within 10 bytes in advance.

Feature Description

Function Entry

Operation Steps

Related Topics