Convert GIS to GMD

Understanding GIS and GMD file formats

GIS (Geographic Information System) files refer to a broad category of digital formats used to store, analyze, and visualize spatial and geographic data. Common GIS file types include SHP (Shapefile), KML, GeoJSON, and GDB (Geodatabase). These files are essential for mapping, spatial analysis, and geospatial data management.

GMD files are ArcMap Document files used by Esri ArcGIS software. A GMD file stores map layouts, layer properties, symbology, and references to GIS datasets, but does not contain the actual spatial data. Instead, it acts as a project file that organizes and displays GIS data within ArcMap.

How to convert GIS files to GMD format

Converting GIS data (such as SHP, KML, or GeoJSON) to a GMD file involves importing the spatial data into ArcMap and saving the project as a GMD file. There is no direct one-step converter, as GMD files are project files created within ArcMap. Here’s how you can perform the conversion:

1. Open ArcMap (part of Esri ArcGIS Desktop).
2. Go to File → Add Data → Add Data... and select your GIS file (e.g., SHP, KML, GeoJSON).
3. Arrange your map layers, symbology, and layout as desired.
4. Save your project by selecting File → Save As... and choose a location and name for your .gmd file.

Best software for GIS to GMD conversion

The best software for this conversion is Esri ArcMap, which is part of the ArcGIS Desktop suite. ArcMap is specifically designed to handle a wide range of GIS file formats and allows you to create and save GMD project files. Alternative GIS software like QGIS does not support GMD files, as this format is proprietary to Esri.

Key points to remember

• GMD files do not store actual GIS data; they reference external datasets.
• Always keep your original GIS data files in the same location or update data sources in ArcMap if you move them.
• For sharing, provide both the GMD file and the referenced GIS data files.