Map export¶

The MapExport plugin allows exporting a selected portion of the map to a variety of formats, as supported by the QGIS Server, among which:

• Image formats (image/png, image/jpeg, image/tiff, ...)
• DXF (application/dxf)
• GeoPDF (application/pdf)

See the MapExport plugin reference for a list of configuration options.

In particular, the plugin supports specifying different export configurations for each format, i.e.:

      {
        "name": "MapExport",
        "cfg": {
          "formatConfiguration": {
            "application/dxf": [
              {"name": "default"},
              {
                "name": "Geobau",
                "extraQuery": "LAYERS=dxfgeobau",
                "formatOptions": "MODE:NOSYMBOLOGY"
              }
            ],
            "image/png": [
              {"name": "default"},
              {"name": "With baselayer", "baseLayer": "SWISSIMAGE"}
            ]
          }
        }
      },

For each format, if multiple configurations are defined, a combobox will be displayed to choose an export configuration.

Export to image formats¶

For image formats, it may be desired to override the background layer for the exported map. To this end, specify a baseLayer in the format configuration to the name of a background printLayer.

For GeoTIFF image export to become available (image format image/tiff), set up the wms_geotiff_output QGIS Server plugin:

  qwc-qgis-server:
    image: docker.io/sourcepole/qwc-qgis-server:<TAG>
    volumes:
      - ./volumes/qgis-server-plugins/wms_geotiff_output:/usr/share/qgis/python/plugins/wms_geotiff_output:ro
    ...

DXF export¶

To enable the DXF export format, the desired layers are marked as Published in the QGIS Project Properties &to; QGIS Server &to; WFS/OAPIF.

You can configure the DXF export by passing supported FORMAT_OPTIONS as formatOptions, i.e.

"formatOptions": "MODE:NOSYMBOLOGY;NO_MTEXT:1"

GeoPDF export¶

GeoPDF export is available since QGIS Server 3.36. As opposed generating a PDF via GetPrint (as used by the Print-Plugin), the MapExport plugin generates the GeoPDF via GetMap and will return just the selected export area as a GeoPDF, without relying on any print layout defined in the QGIS project.

You can configure the GeoPDF export by passing supported FORMAT_OPTIONS, look for PdfFormatOption in https://github.com/qgis/QGIS/blob/master/src/server/services/wms/qgswmsparameters.h.