缓冲区

缓冲区需要额外调用接口，需要引用插件 BufferAnalysis.js

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

缓冲区开始

function createBuffer(geometry, width) {
    var bufferGeometry = undefined;
    if (geometry instanceof LSGlobe.Cartesian3 || geometry instanceof LSGlobe.SimplePolylineGeometry || geometry instanceof LSGlobe.PolygonGeometry) {
        bufferGeometry = geometry;
    }

    if (LSGlobe.defined(bufferGeometry)) {
        var buffer = viewer.bufferAnalysis.viewModel.buffer(bufferGeometry, width);
        viewer.scene.primitives.add(new LSGlobe.GroundPrimitive({
            geometryInstances: new LSGlobe.GeometryInstance({
                geometry: buffer,
                attributes: {
                    color: LSGlobe.ColorGeometryInstanceAttribute.fromColor(LSGlobe.Color.CORAL.withAlpha(0.5))
                }
            }),
            appearance: new LSGlobe.PerInstanceColorAppearance({
                flat: true,
                translucent: false
            }),
            asynchronous: true
        }))
    }
}

缓冲点

var point = viewer.entities.add({
    position: new LSGlobe.Cartesian3.fromDegrees(112, 30),
    point: {
        show: true,
        heightReference: LSGlobe.HeightReference.CLAMP_TO_GROUND,
        pixelSize: 10,
        // 像素点大小
        color: LSGlobe.Color.YELLOW // 点位颜色
    },
    show: true
});

createBuffer(point.position.getValue(), 5000);

缓冲线

var line = viewer.entities.add({
    polyline: {
        positions: LSGlobe.Cartesian3.fromDegreesArray(['120.5070604588', '31.4468232691', '120.5357608787', '31.4541161043', '120.5468011104', '31.4586169902', '120.5676789334', '31.4685878382', '120.5836159563', '31.4706913162', '120.5959846813', '31.4698773817', '120.6143626015', '31.4791599173', '120.6252667821', '31.484252155']),
        width: 2,
        material: LSGlobe.Color.RED
    }
});

createBuffer(new LSGlobe.SimplePolylineGeometry({
    positions: line.polyline.positions.getValue()
}), 5000);

缓冲面

var polygon = viewer.entities.add({
    polygon: {
        hierarchy: new LSGlobe.PolygonHierarchy(LSGlobe.Cartesian3.fromDegreesArray([112, 30, 111, 31, 112, 31, 112, 30])),
        outline: true,
        outlineColor: LSGlobe.Color.WHITE,
        outlineWidth: 4
    },
});

createBuffer(new LSGlobe.PolygonGeometry({
    polygonHierarchy: new LSGlobe.PolygonHierarchy(polygon.polygon.hierarchy.getValue().positions),
    perPositionHeight: true
}), 5000);

在线示例

在线示例