Large filled circles fill the opposite side.

[pjcozzi]

Code example:

var circle = new Cesium.Polygon();
circle.setPositions(
   Cesium.Shapes.computeCircleBoundary(
      ellipsoid,
      ellipsoid.cartographicToCartesian(Cesium.Cartographic.fromDegrees(0, 90.0)), 12500000.0));
primitives.add(circle);

[pjcozzi]

Another example:

 var circle = primitives.add(new Cesium.Polygon({
        positions : Cesium.Shapes.computeCircleBoundary(
                ellipsoid,
                ellipsoid.cartographicToCartesian(Cesium.Cartographic.fromDegrees(0.0, 90.0)),
                10000000.0)
}));

[pjcozzi]

@bagnell was this fixed with #2283?

[pjcozzi]

@bagnell?

[bagnell]

No. Here's an update code sample:

var circleInstance = new Cesium.GeometryInstance({
    geometry : new Cesium.CircleGeometry({
        center : Cesium.Cartesian3.fromDegrees(0.0, 90.0),
        radius : 10000000.0,
        vertexFormat : Cesium.PerInstanceColorAppearance.VERTEX_FORMAT
    }),
    attributes : {
        color : Cesium.ColorGeometryInstanceAttribute.fromColor(new Cesium.Color(1.0, 0.0, 0.0, 0.5))
    }
});
scene.primitives.add(new Cesium.Primitive({
    geometryInstances: circleInstance,
    appearance: new Cesium.PerInstanceColorAppearance({
        closed: true
    })
}));