DIR : /home/kozerus/public_html/cropex/node/node_modules/use-callback-ref/dist/es2015/createRef.js
/home/kozerus/public_html/cropex/node/node_modules/use-callback-ref/dist/es2015
/**
* creates a Ref object with on change callback
* @param callback
* @returns {RefObject}
*
* @see {@link useCallbackRef}
* @see https://reactjs.org/docs/refs-and-the-dom.html#creating-refs
*/
export function createCallbackRef(callback) {
var current = null;
return {
get current() {
return current;
},
set current(value) {
var last = current;
if (last !== value) {
current = value;
callback(value, last);
}
},
};
}
//
koh5_pano
Drag mouse to navigate.
Navigation
- Left/Right Mouse drag: Changes camera heading.
- Up/Sown Mouse drag: Changes camera pitch.
- Scroll wheel: Changes camera field of view.
- I-Key: Displays Info panel with canvas size, image size and FPS.
17.Aug.2010, Martin Wengenmayer