Open Printable/Searchable Copy - Global Mapper

Unload All Command
The Unload All command unloads all overlays and clears the screen.
Create New Map Catalog Command
Global Mapper User's Manual
The Create New Map Catalog command allows you to create a "map catalog". A "map catalog" is a collection
of map files which are grouped together to allow for easy loading, viewing, and export. Layers in a map
catalog will be loaded and unloaded as needed for display and export, potentially greatly reducing the load
time and memory requirements for working with very large collections of data.
Upon selecting this command and selecting the file to save the map catalog to, the Modify Map Catalog dialog
(shown below) will be displayed, allowing you to add files to the catalog, control at what zoom level data
layers are loaded for display, and setup how the map bounding boxes are displayed when you are zoomed out
too far for the actual map data to display. By default map bounding boxes are displayed using the style set for
the Map Catalog Layer Bounds type.
Table of Contents 20