Basemap constructor
Creates a basemap. Layers need to be added to the basemap before it can be used.
Implementation
factory Basemap() {
_initializeArcGISEnvironmentIfNeeded();
final handle = _withThrowingErrorHandler((errorHandler) {
return runtimecore.RT_Basemap_create(errorHandler);
});
return Basemap._instanceCache.instanceWith(handle);
}