Gio.js
Getting Start
Gio.js 2.0
Basic Elements
Configuration
Object Design API
Color and Style API
Working with Data
Callback
Dependence Interface
Advanced Feature
showInOnly / showOutOnly
Displays only the line with data flowing into the selected country or with data flowing out of the selected country.
  for showInOnly
  for showOutOnly
controller.showInOnly(true);
controller.showInOnly(false);
controller.showOutOnly(true);
controller.showOutOnly(false);