Preparing Maps for Hosting

If you would like to use your own maps on Hortis and are not able to publish the map to a public map service, such as ArcGIS online, our Map Hosting Service can be used for a fee.

Our “Map Hosting Service” supports vector-based maps such as Esri compatible maps, as well as georeferenced raster files such as GeoTIFF. Other file formats, such as AutoCAD and Vectorworks are supported by converting the map data to the Shapefile format or a supported raster file format.

Preparing a ArcGIS Map Package

To use our Map Hosting Service for ArcGIS compatible maps, please prepare the maps as follows:

  • Make sure the map and all map layers use the “web mercator auxiliary sphere / EPSG:3857” projection.

  • Make sure the map extent is properly defined.

  • Run the command, “Analyze map” from the ArcGIS file menu and fix any warnings or errors.

  • For optimal visual appearance, we recommend that you follow these guidelines.

    • Avoid using a black outline colour on polygons. Try instead to use an outline colour with a more subtle contrast, such as Dark Blue Outline for Blue polygons and Dark Green outline for Green polygons.

    • Avoid transparency.

    • 3D symbols are often not supported well.

    • Use low contrasting colors.

    • Remove unused layers.

    • Data Frame

      • Remove rotation and reference scale if used.

      • If you have gaps between polygons, consider using a black background.

  • Send us the map as a “Map Package”:

  • Send the file directly to us via a file-sharing service, such as

If you have other types of maps available, please get in touch, and we will be able to advise you on how to proceed.                                            



Havard is the author of this solution article.

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