GEO (geographical) metadata¶
The BIChart and BIVisualizer controls (when using the "Pro" version of TeeChart) are capable of displaying world maps, but they firsts need to know the geographical level (continents, countries, states, cities, counties...) of the data to plot, and the relationship link between your custom data and the internal TeeChart geo entities.
This can be accomplished by using an internal "Geo"
TDataItem, for example:
// Link our country name to Geo country name: MyData['Country'].Master := Geo['Countries']['Name'];