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【超图+CESIUM】【基础API使用示例】07、超图｜CESIUM - 场景颜色设置和校正

作者：互联网

前言

	缺少前置学习使用资料，请自行查阅：[https://blog.csdn.net/weixin_44402694/article/details/123110136](https://blog.csdn.net/weixin_44402694/article/details/123110136)
	以下示例使用到的公共静态资料，不建议下载，建议官网自行下载超图Build资源，示例所涉及图片会在示例使用到时提供出来。如有需要可下载：[https://download.csdn.net/download/weixin_44402694/82180350](https://download.csdn.net/download/weixin_44402694/82180350)。
	场景颜色设置和校正。

设置

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>颜色设置 - 场景颜色设置和校正</title>
    <link href="./public/Build/Cesium/Widgets/widgets.css" rel="stylesheet" />
    <script
      type="text/javascript"
      src="./public/Build/Cesium/Cesium.js"
    ></script>
    <style>
      * {
        margin: 0;
        padding: 0;
      }
      html,
      body,
      #cesium-container {
        width: 100%;
        height: 100%;
      }
      .input-group {
        width: 220px;
        display: flex;
        flex-direction: column;
        position: fixed;
        left: 10px;
        top: 10px;
        box-sizing: border-box;
        padding: 10px;
        border: 1px solid #fff;
        background-color: #fff;
        z-index: 1;
      }
      .input-group p {
        display: flex;
        justify-content: space-between;
      }
    </style>
  </head>
  <body>
    <div id="cesium-container" />
    <div class="input-group">
      <p>
        <span>亮度</span>
        <input
          type="range"
          min="0"
          max="1"
          step="0.02"
          data-cate="brightness"
        />
      </p>
      <p>
        <span>对比度</span>
        <input type="range" min="0" max="1" step="0.02" data-cate="contrast" />
      </p>
      <p>
        <span>色调</span>
        <input type="range" min="0" max="1" step="0.02" data-cate="hue" />
      </p>
      <p>
        <span>饱和度</span>
        <input
          type="range"
          min="0"
          max="1"
          step="0.02"
          data-cate="saturation"
        />
      </p>
    </div>
    <script>
      let viewer = null,
        correction = null
      window.onload = function () {
        viewer = new Cesium.Viewer('cesium-container')
        viewer.imageryLayers.get(0).alpha = 0 // 默认的地图的透明度直接设置为0
        correction = viewer.scene.colorCorrection // 创建颜色校正对象
        correction.show = true // 开启颜色校正
        setS3MServiceHandler()
      }
      // 添加由supermap iserver上发布的s3m服务 并设置其相关的颜色参数
      function setS3MServiceHandler() {
        const promise = viewer.scene.open(
          'http://{s}/realspace/services/3D-NewCBD/rest/realspace',
          undefined,
          {
            subdomains: ['www.supermapol.com'],
          }
        )
        Cesium.when(promise, () => {
          listenInputChangeHandler()
        })
      }

      // input的监听事件，触发手动设置layer图层当前变化的这一项参数
      function listenInputChangeHandler() {
        const inps = document.querySelectorAll('.input-group p input')
        Array.from(inps).forEach((inp) => {
          const currentCate = inp.getAttribute('data-cate')
          inp.value = correction[currentCate]
          inp.addEventListener('input', () => {
            correction[currentCate] = parseFloat(inp.value)
          })
        })
      }
    </script>
  </body>
</html>

标签：示例,viewer,correction,inp,超图,设置,CESIUM,input
来源： https://blog.csdn.net/weixin_44402694/article/details/123114703