vue 改写这段代码: var viewModel = { brightness: 1, contrast: 1, hue: 0, saturation: 1, gamma: 1 }; // Convert the viewModel members into knockout observables. Cesium.knockout.track(viewModel); // Bind the viewModel to the DOM elements of the UI that call for it. var toolbar = document.getElementById('toolbar'); Cesium.knockout.applyBindings(viewModel, toolbar); // Make the active imagery layer a subscriber of the viewModel. function subscribeLayerParameter(name) { Cesium.knockout.getObservable(viewModel, name).subscribe( function(newValue) { var layer = sceneLayer; layer[name] = parseFloat(newValue); //sceneLayers[0].refresh(); } ); } subscribeLayerParameter('brightness'); subscribeLayerParameter('contrast'); subscribeLayerParameter('hue'); subscribeLayerParameter('saturation'); subscribeLayerParameter('gamma');
时间: 2024-02-10 15:06:54 浏览: 37
以下是使用Vue改写的代码:
```
<template>
<div id="toolbar">
<label>Brightness:</label>
<input type="range" min="0" max="2" step="0.1" v-model="brightness" />
<br>
<label>Contrast:</label>
<input type="range" min="0" max="2" step="0.1" v-model="contrast" />
<br>
<label>Hue:</label>
<input type="range" min="0" max="360" step="10" v-model="hue" />
<br>
<label>Saturation:</label>
<input type="range" min="0" max="2" step="0.1" v-model="saturation" />
<br>
<label>Gamma:</label>
<input type="range" min="0" max="2" step="0.1" v-model="gamma" />
</div>
</template>
<script>
export default {
data() {
return {
brightness: 1,
contrast: 1,
hue: 0,
saturation: 1,
gamma: 1
};
},
watch: {
brightness(val) {
this.updateLayerParameter('brightness', parseFloat(val));
},
contrast(val) {
this.updateLayerParameter('contrast', parseFloat(val));
},
hue(val) {
this.updateLayerParameter('hue', parseFloat(val));
},
saturation(val) {
this.updateLayerParameter('saturation', parseFloat(val));
},
gamma(val) {
this.updateLayerParameter('gamma', parseFloat(val));
}
},
mounted() {
// Make the active imagery layer a subscriber of the viewModel
this.subscribeLayerParameter('brightness');
this.subscribeLayerParameter('contrast');
this.subscribeLayerParameter('hue');
this.subscribeLayerParameter('saturation');
this.subscribeLayerParameter('gamma');
},
methods: {
subscribeLayerParameter(name) {
this.$watch(name, function(newValue) {
var layer = sceneLayer; // Replace `sceneLayer` with your actual layer object
layer[name] = parseFloat(newValue);
// sceneLayers[0].refresh(); // Uncomment this line if needed
});
},
updateLayerParameter(name, value) {
this[name] = value;
}
}
}
</script>
```
在这个Vue组件中,我们使用了`v-model`指令来绑定滑块的值到`viewModel`对象的属性上。我们使用了Vue的`watch`方法来监听`viewModel`对象属性的变化,当属性变化时,我们调用`updateLayerParameter`方法来更新属性值。我们还使用了`mounted`方法来在组件挂载后订阅图层参数的变化。最后,我们使用了`$watch`方法来监听属性变化,并更新图层参数。
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