图片旋转

图片旋转需要额外调用接口，需要引用插件 TextureDynamicMaterialProperty.js

<script src="SDK/Plugins/TextureDynamicMaterialProperty/TextureDynamicMaterialProperty.js"></script>

渲染图片到指定范围

//初始化鼠标事件
function computeGeometryPos(center, radius, fromA, toA, length) {
    var res = [];
    var interval = (toA - fromA) * Math.PI / 180 / length;
    var startA = fromA * Math.PI / 180;

    var mm = LSGlobe.Transforms.eastNorthUpToFixedFrame(center);
    var startPos = new LSGlobe.Cartesian3();
    for (var i = 0; i < length; i++) {
        var a = startA + interval * i;
        var p = new LSGlobe.Cartesian3(Math.sin(a) * radius, Math.cos(a) * radius, 0.);
        res.push(LSGlobe.Matrix4.multiplyByPoint(mm, p, new LSGlobe.Cartesian3));
        if (i === 0) {
            startPos = LSGlobe.Matrix4.multiplyByPoint(mm, p, new LSGlobe.Cartesian3);
        }
    }
    res.push(startPos);

    return res;
}

var center = new LSGlobe.Cartesian3.fromRadians(2.1206125026580582, 0.545178729438238, 14.721614698023599);
var res = computeGeometryPos(center, 500, 270., -90., 360);

var polygon = new LSGlobe.PolygonGeometry({
    polygonHierarchy: new LSGlobe.PolygonHierarchy(res)
});
let instance = new LSGlobe.GeometryInstance({
    geometry: polygon,
    id: 'nihao'
});
var primitive = new LSGlobe.Primitive({
    geometryInstances: [instance],
    appearance: new LSGlobe.EllipsoidSurfaceAppearance({
        material: LSGlobe.Material.fromType(LSGlobe.Material.TextureDynamicType, {
            image: 'images/bg.png'
        })
    })
});

在线示例

在线示例