Get BatchID with MouseMove

[mitko...@gmail.com]

I have created b3dm files with py3dtiles library and included an id for each feature at the same time. Now, I'm trying to access an id of a feature when the mouse is over that feature. However, in the console, I see that the number of features in the batchTable is 0. I'm not sure, maybe there is a better way to access the properties of features in 3Dtiles.

var handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
handler.setInputAction(function(movement) {}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);

handler.setInputAction(function(movement) {
var feature = viewer.scene.pick(movement.endPosition);
console.log(feature);
}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);

Let me know if there is a way to get the properties of features or the b3dm file is not created correctly.

[Omar Shehata]

You might want to print out the properties in the tilesets:

https://cesiumjs.org/Cesium/Build/Documentation/Cesium3DTileset.html?classFilter=Cesium3d#properties

Given a tile: https://cesiumjs.org/Cesium/Build/Documentation/Cesium3DTile.html 

You can get tile.content and then featuresLength:

https://cesiumjs.org/Cesium/Build/Documentation/Cesium3DTileContent.html#featuresLength

If that's 0, then the tileset wasn't created with the features you need. This example might be helpful too:

https://cesiumjs.org/Cesium/Build/Apps/Sandcastle/?src=3D%20Tiles%20Feature%20Picking.html

You could also try tiling the data with cesium.com/ion just to check if the issue is in your data or in the tiling.

[Mitko Aleksandrov]

Hi Omar,

I figured out the py3dtiles hasn't implemented this part yet, thus, data don't have properties.

The links that you provided were very useful to me.

Thanks