Button control

/*
You can create or remove a button bar at the top right of 
the map with all buttons.
*/
mapInstance.onBtnAll();
mapInstance.offBtnAll();
​
// Zoom-in and zoom-out button.
mapInstance.onBtnZoom();
mapInstance.offBtnZoom();
​
// Compass button.
mapInstance.onBtnCompass();
mapInstance.offBtnCompass();
​
// Pitch button.
mapInstance.onBtnPitch();
mapInstance.offBtnPitch();
​
// Satellite button.
mapInstance.onBtnSatellite();
mapInstance.offBtnSatellite();
​
// Bering button.
mapInstance.onBtnBering();
mapInstance.offBtnBering();
​
// Full-screen button.
mapInstance.onBtnFullScreen();
mapInstance.offBtnFullScreen();
​
// Geographic location button.
mapInstance.onBtnGeoLocate();
mapInstance.offBtnGeoLocate();
​
// Radius button.
mapInstance.onBtnRadius();
mapInstance.offBtnRadius();
​
// Area Button.
mapInstance.onBtnArea();
mapInstance.offBtnArea();
​
// Distance Button.
mapInstance.onBtnDistance();
mapInstance.offBtnDistance();
​
// Theme Button.
mapInstance.onBtnTheme();
mapInstance.offBtnTheme();