billboard height with sizeInMeters and VerticalOrigin.BOTTOM

[YousefED]

Steps to reproduce:

1. http://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=Billboards.html&label=Showcases
2. add verticalOrigin: Cesium.VerticalOrigin.BOTTOM to the sizeInMeters example
3. Zoom in / out

Observed behaviour: when zooming out, the billboard seems to change it's height-position relative to the surface.

Expected behaviour: the bottom of the billboard stays "clamped" to the original position.

Let me know if you need more info!

[hpinkos]

Thanks for reporting this @YousefED! You can see the billboard is creeping upwards as I zoom out:

var viewer = new Cesium.Viewer('cesiumContainer');

var entity = viewer.entities.add({
    position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
    billboard : {
        image : '../images/Cesium_Logo_overlay.png',
        sizeInMeters : true,
        verticalOrigin: Cesium.VerticalOrigin.BOTTOM
    }
});

viewer.zoomTo(entity);

[YousefED]

Thanks for adding. Offtopic: What tool do you use for your video snippets?

[hpinkos]

We use LICEcap to capture animated GIFs. Definitely comes in handy