Map

Display points on a world map, using topics that contain LocationFix messages.

These points may be surrounded by circles that represent their accuracy - i.e. the larger the circle, the less accurate the coordinates. Points generated while the GPS receiver does not have a fix are displayed in a darker red, to denote that their coordinates are likely invalid

User interactions

• Hover over the playback bar to highlight map points corresponding to that time
• Hover over a point on the map to highlight its corresponding time in the playback bar
• Click a map point to seek playback to that time
• Scroll over the map to zoom; drag the map to pan (zoom and pan levels will be persisted to the layout)

Settings

General
Tile Layer	"Map", "Satellite", or "Custom" view
Custom map tile URL	Displayed only when the "Custom" tile layer is selected; URL to your custom map tiles, in https://my.custom.url/{x}/{y}/{z}.png format following the Time Map Service specification
Follow topic	Topic with LocationFix schema to follow in the panel viewport

The Topics section allows you to toggle visibility and set colors for LocationFix or GeoJSON topics when superimposed on the map.

Custom map layers

Load custom map layers by pointing to a URL that serves rasterized slippy tiles following the Tile Map Service specification with Web Mercator projection. See Leaflet's TileLayer documentation for more information on URL template construction. Most Open Street Map based services will work for this. See Switch2OSM for more information on serving your own tiles.

Supported messages

To use this panel, your data source must provide messages conforming to one of the following supported schemas.

LocationFix

framework	schema
ROS 1	sensor_msgs/NavSatFix
ROS 2	sensor_msgs/msg/NavSatFix
Custom	foxglove.LocationFix

GeoJSON

framework	schema
Custom	foxglove.GeoJSON

Additional resources

• Write a message converter extension (Map panel)