Mapping configuration
Mapping configuration prepares the map that live users see during the show.
General mapping
General mapping sets the event's base map, opening zoom, event boundary, and scrollable area.
Use the boundary to describe the event footprint. Use the scrollable area to stop operators drifting too far from the site.
Set a generous scrollable area around the event, but keep the opening view tight. Operators should land where the show is, then pan out only when they need context.
Base maps
OpenStreetMap is available as a general base. OS Maps can be selected when the environment has the required OS Data Hub key.
If OS Maps is selected without a configured key, Nexus shows an unavailable warning and keeps the save action safe. Configure the OS key before relying on OS Maps for a live show.
Show maps and layers
Show maps are operational map sets for the event. Each show map can have layers:
- base layers;
- design layers;
- overlays;
- imported planning map layers.
Use layers to separate what operators may need at different moments. Too many default-visible layers can make the map slower to read.
Imports and georeferencing
Upload planning PDFs in Imports. Nexus prepares pages for georeferencing, then lets setup users calibrate a page against the reference map. Once a page is production eligible and tiles are generated, it can become a map layer.
Do not publish an imported planning map on show day without checking it against known points. A badly georeferenced plan is worse than no plan because it looks authoritative.
What to rehearse
Before the event starts:
- open the live map;
- check the base map loads;
- switch each important layer on and off;
- click a known log marker if logs already exist;
- search a What3Words reference if the event relies on it.