Method canvasToDataURL

docs/app/js/sanddance-app.js:8293–8301

()

        };
    }
    canvasToDataURL() {
        return new Promise((resolve, reject)=>{
            this._afterRenderHandler = ()=>{
                this._afterRenderHandler = null;
                const png = this.deckgl.canvas.toDataURL("image/png");
                resolve(png);
            };
        });
    }
    /**
     * Home the camera to the last initial position.
     */ homeCamera() {