      };
            //火焰参数设置绑定UI
            Cesium.knockout.track(viewModel);
            var toolbar = document.getElementById('toolbar');
            Cesium.knockout.applyBindings(viewModel, toolbar);

            function subscribeParameter(name) {
                Cesium.knockout.getObservable(viewModel, name).subscribe(
                    function(newValue) {
                        if (name === 'emissionRate') {
                            //排放率
                            fire