Dynamic 是否可以从实时数据kml进行动态巡更

有没有一种方法可以使巡更从脚本中获取坐标并更新巡更

我从一个python脚本中获取数据，然后想在巡演中实时更新fly to coordiantes，但不知道如何做到这一点

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我尝试过使用网络链接，但它不起作用，我不确定是否使用animatedupdate，我还没有尝试过，但可以在KML中使用networklink控件。您总共需要四个KML文件才能实现它。在您的场景中，前三个可以硬编码，第四个可以从python脚本生成

加载tour.kml-加载tour.kml的网络链接文件

tour.kml-保存原始kml tour数据的文件

更新tour.kml-加载更新的tour new-data.kml的网络链接文件

新数据.kml-更新原始tour.kml的网络链接控件

以下是四个文件，为了简洁起见，我遗漏了KML声明和根元素

加载巡更。kml

<NetworkLink>
  <name>load</name>
  <Link>
    <href>tour.kml</href>
  </Link>
</NetworkLink>

<Document>
  <gx:Tour id="myTour">
    <name>tour</name>
    <gx:Playlist id="myPlaylist">
    <!-- existing tour data goes here -->
    </gx:Playlist>
  </gx:Tour>
</Document>

<NetworkLinkControl>
  <Update>
    <targetHref>tour.kml</targetHref>
    <Change>
      <gx:Playlist id="myPlaylist">
        <!-- new tour data goes here -->
      </gx:Playlist>
    </Change>
  </Update>
</NetworkLinkControl>

<NetworkLink>
  <Link><href>new_camera.kml</href></Link>
  ...
  <flyToView>1</flyToView>
</NetworkLink>

<Document>
  <Camera>...
  or
  <LookAt>...
</Document>

负载
tour.kml

tour.kml

<NetworkLink>
  <name>load</name>
  <Link>
    <href>tour.kml</href>
  </Link>
</NetworkLink>

<Document>
  <gx:Tour id="myTour">
    <name>tour</name>
    <gx:Playlist id="myPlaylist">
    <!-- existing tour data goes here -->
    </gx:Playlist>
  </gx:Tour>
</Document>

<NetworkLinkControl>
  <Update>
    <targetHref>tour.kml</targetHref>
    <Change>
      <gx:Playlist id="myPlaylist">
        <!-- new tour data goes here -->
      </gx:Playlist>
    </Change>
  </Update>
</NetworkLinkControl>

<NetworkLink>
  <Link><href>new_camera.kml</href></Link>
  ...
  <flyToView>1</flyToView>
</NetworkLink>

<Document>
  <Camera>...
  or
  <LookAt>...
</Document>

旅行

更新tour.kml

<NetworkLink>
  <name>update</name>
  <Link>
    <href>new-data.kml</href>
  </Link>
</NetworkLink>

使现代化
new-data.kml

新数据。kml

<NetworkLink>
  <name>load</name>
  <Link>
    <href>tour.kml</href>
  </Link>
</NetworkLink>

<Document>
  <gx:Tour id="myTour">
    <name>tour</name>
    <gx:Playlist id="myPlaylist">
    <!-- existing tour data goes here -->
    </gx:Playlist>
  </gx:Tour>
</Document>

<NetworkLinkControl>
  <Update>
    <targetHref>tour.kml</targetHref>
    <Change>
      <gx:Playlist id="myPlaylist">
        <!-- new tour data goes here -->
      </gx:Playlist>
    </Change>
  </Update>
</NetworkLinkControl>

<NetworkLink>
  <Link><href>new_camera.kml</href></Link>
  ...
  <flyToView>1</flyToView>
</NetworkLink>

<Document>
  <Camera>...
  or
  <LookAt>...
</Document>

tour.kml

以下是有关networklinkcontrol及其在更新数据中的使用的文档

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您可以让NetworkLink使用flytoView自动更新相机位置。这不是一次真正的旅行，但效果类似。每次加载链接时，它都会飞到链接KML中的新LookAt或Camera元素

root.kml

<NetworkLink>
  <name>load</name>
  <Link>
    <href>tour.kml</href>
  </Link>
</NetworkLink>

<Document>
  <gx:Tour id="myTour">
    <name>tour</name>
    <gx:Playlist id="myPlaylist">
    <!-- existing tour data goes here -->
    </gx:Playlist>
  </gx:Tour>
</Document>

<NetworkLinkControl>
  <Update>
    <targetHref>tour.kml</targetHref>
    <Change>
      <gx:Playlist id="myPlaylist">
        <!-- new tour data goes here -->
      </gx:Playlist>
    </Change>
  </Update>
</NetworkLinkControl>

<NetworkLink>
  <Link><href>new_camera.kml</href></Link>
  ...
  <flyToView>1</flyToView>
</NetworkLink>

<Document>
  <Camera>...
  or
  <LookAt>...
</Document>

新照相机.kml
...
1.

新摄像头。kml

<NetworkLink>
  <name>load</name>
  <Link>
    <href>tour.kml</href>
  </Link>
</NetworkLink>

<Document>
  <gx:Tour id="myTour">
    <name>tour</name>
    <gx:Playlist id="myPlaylist">
    <!-- existing tour data goes here -->
    </gx:Playlist>
  </gx:Tour>
</Document>

<NetworkLinkControl>
  <Update>
    <targetHref>tour.kml</targetHref>
    <Change>
      <gx:Playlist id="myPlaylist">
        <!-- new tour data goes here -->
      </gx:Playlist>
    </Change>
  </Update>
</NetworkLinkControl>

<NetworkLink>
  <Link><href>new_camera.kml</href></Link>
  ...
  <flyToView>1</flyToView>
</NetworkLink>

<Document>
  <Camera>...
  or
  <LookAt>...
</Document>

...
或
...

除了更改Tour name元素外，我还没有成功地从NetworkLink更新播放巡演。我尝试启动循环巡演，然后从NetworkLinkControl更改播放列表或FlyTo元素，但只有在手动重新启动巡演时，我才能看到相机的更改