Billboard.show = false is not working

CesiumJS
1

I'm trying to hide/show billboards based on the country they are in (this is selected in a controls box).

When I first add all of the billboards, they show up on the map fine.

When I try to set show to false, I can see (thank you developer tools) that the actual method in Billboard.js is being called.

However, the billboards are all still showing on the map.

If I put a breakpoint in the 'get' function, I see that it's called by updateObject, and the show value is true.

What is going on here?

Am I not doing this right?

I am accessing the billboards through the billboardcollection, through the primitives, through the viewer.

Thanks, and I hope you all can help!

2

I don’t know what’s causing the problem you’re seeing, but setting show = false should work.

Here’s a Sandcastle example that you can paste into http://cesiumjs.org/Cesium/Apps/Sandcastle/index.html

var viewer = new Cesium.Viewer(‘cesiumContainer’);

var scene = viewer.scene;

var primitives = scene.primitives;

var logoUrl = ‘…/images/Cesium_Logo_overlay.png’;

var facilityUrl = ‘…/images/facility.gif’;

var billboards = scene.primitives.add(new Cesium.BillboardCollection());

billboards.add({

image : logoUrl,

position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883)

});

billboards.add({

image : facilityUrl,

position : Cesium.Cartesian3.fromDegrees(-80.50, 35.14)

});

billboards.add({

image : facilityUrl,

position : Cesium.Cartesian3.fromDegrees(-80.12, 25.46)

});

var show = true;

Sandcastle.addToolbarButton(‘toggle show’, function() {

show = !show;

for (var i = 0; i < billboards.length; ++i) {

billboards.get(i).show = show;

}

});

3

Phew.. I tried out your code. After a lot of sweating and frustration, I compared my local Cesium source to the source folder on the Sandcastle.

Needless to say, my code didn't have the same functionality (I'm not sure how old it was).

I swapped out my source folder for 1.2 source folder, now it's all working correctly! :slight_smile:

Thank you very much for your help, Scott!