1. A concise explanation of the problem you’re experiencing.
i want to load CZML file without clear THE data,which last time has loaded.
so i used the function process() by midifying the demo https://cesiumjs.org/Cesium/Build/Apps/Sandcastle/?src=CZML.html&label=DataSources
like this:
var viewer = new Cesium.Viewer(‘cesiumContainer’);
var czmldatasource = new Cesium.CzmlDataSource();
viewer.camera.flyHome(0);
viewer.dataSources.add(czmldatasource.process(’…/…/SampleData/Vehicle.czml’));
viewer.dataSources.add(czmldatasource.process(’…/…/SampleData/simple.czml’));
viewer.scene.camera.setView({
destination: Cesium.Cartesian3.fromDegrees(-116.52, 35.02, 95000),
orientation: {
heading: 6
}
});
but, an error has occurred:
An error occurred while rendering. Rendering has stopped.
undefined
DeveloperError: This object was destroyed, i.e., destroy() was called.
Error
at new DeveloperError (http://localhost:8080/Source/Core/DeveloperError.js:43:19)
at VertexArray.throwOnDestroyed (http://localhost:8080/Source/Core/destroyObject.js:45:19)
at continueDraw (http://localhost:8080/Source/Renderer/Context.js:918:12)
at Context.draw (http://localhost:8080/Source/Renderer/Context.js:957:9)
at DrawCommand.execute (http://localhost:8080/Source/Renderer/DrawCommand.js:502:17)
at executeCommand (http://localhost:8080/Source/Scene/Scene.js:1651:21)
at executeTranslucentCommandsSortedMultipass (http://localhost:8080/Source/Scene/OIT.js:558:13)
at OIT.executeCommands (http://localhost:8080/Source/Scene/OIT.js:600:9)
at scene._executeOITFunction (http://localhost:8080/Source/Scene/Scene.js:1848:32)
at executeCommands (http://localhost:8080/Source/Scene/Scene.js:1961:13)
2. A minimal code example. If you’ve found a bug, this helps us reproduce and repair it.
3. Context. Why do you need to do this? We might know a better way to accomplish your goal.
i want to keep the loaded data last time when i load new czml file.
4. The Cesium version you’re using, your operating system and browser.
cesium 1.42. windows7, chrome
Thanks!