About the Dynamic Line Map Layer Type

You can represent movements and connections between two geographic points or areas on a map visualization using a dynamic line map layer.

The dynamic line map layer generates lines between specified start and end coordinates on a map. For example, you might want to visualize movement patterns between cities, illustrate flight routes between airports, or show business relationships, or logistics routes between countries or warehouses.

The dynamic line map layer type requires attribute columns for the following two categories:

• Start Node: Defines origin coordinates or a geographic location.
• End Node: Defines destination coordinates or a geographic location.

The Start Node and End Node can contain the following map data formats:

• Latitude and Longitude: Use latitude and longitude coordinates for each node.
• Cities or Countries: Use named cities or countries as coordinates for each node.
• Points or Polygons: Use individual points or polygons (geographic shapes) as coordinates for each node.

You can only use attribute columns for the start and end nodes in the Grammar pane. Oracle Analytics treats number columns as measures so make sure any number columns you plan to use in the dynamic line map layer, such as latitude and longitude columns, are set to be treated as attributes See Configure Columns Properties in a Dataset.

If you use attribute columns for the names of geographical locations, Oracle Analytics automatically identifies them as such and applies an appropriate system map layer. For example, if your attribute column contains the names of cities across the global, the system map layer World Cities is applied. You can also select a custom map layer yourself.