自v7.6.1版本起，Android地图SDK支持在地图上展示3D动态轨迹。添加3D动态轨迹请参考BMTrackOptions类

代码如下：
参数选项：

/**
 * 设置轨迹线的类型
 * @param trackType
 * @return
 */
public OverlayOptions setTrackType(BMTrackType trackType)

/**
 * 设置轨迹线的高度
 * 注：高度必须 >= 0，否则不绘制 单位:米
 * @param mHeights
 */
public OverlayOptions setHeights(int[] mHeights)

/**
 * 设置轨迹点数组
 * @param traceLocation
 * @return
 */
public OverlayOptions setPoints(List<LatLng> traceLocation)

/**
 * 设置轨迹线描边的宽度
 * @param width
 * @return
 */
public OverlayOptions setWidth(int width)

/**
 * 设置轨迹动画的状态监听
 * @param mTraceAnimationListener
 * @return
 */
public OverlayOptions setTraceAnimationListener(TraceAnimationListener mTraceAnimationListener)

/**
 * 设置轨迹颜色的取色图片
 * @param palette
 */
public OverlayOptions setPalette(BitmapDescriptor palette)


/**
 * 设置3d轨迹底部描边的取色图片
 * 注：不设置 只绘制带高度的3d轨迹
 * @param palette
 */
public OverlayOptions setProjectionPalette(BitmapDescriptor palette)

/**
 * 设置3d轨迹的不透明度(0.f ~ 1.f)
 * @param opacity
 */
public OverlayOptions setOpacity(float opacity) 

/**
 * 设置3d轨迹描边的不透明度(0.f ~ 1.f)
 * @param mPaletteOpacity
 */
public OverlayOptions setPaletteOpacity(float mPaletteOpacity) 
            

示例：

BMTrackOptions trackOptions = new BMTrackOptions();
trackOptions.setTrackType(BMTrackType.Surface);
trackOptions.setPoints(points);
trackOptions.setHeights(heights);
trackOptions.setPalette(mPalette);
trackOptions.setPaletteOpacity(0.3f);
trackOptions.setProjectionPalette(mProjectionPalette);
trackOptions.setWidth(10);
trackOptions.setAnimationTime(5000);

private TraceAnimationListener mTraceAnimationListener = new TraceAnimationListener() {
    @Override
    public void onTraceAnimationUpdate(int percent) {
        Log.i(tag,"onTraceAnimationUpdate : " + percent);
    }

    @Override
    public void onTraceUpdatePosition(LatLng position) {
        Log.i(tag,"onTraceUpdatePosition : " + position.toString());
    }

    @Override
    public void onTraceAnimationFinish() {
        Log.i(tag,"TraceAnimationFinish" );
    }
};

trackOptions.setTraceAnimationListener(mTraceAnimationListener);
trackOptions.setAnimateType(BMTrackOptions.BMTrackAnimateType.TraceOverlayAnimationEasingCurveLinear);
Track track = (Track)mBaiduMap.addOverlay(trackOptions); 
            

效果：

trackOptions.setTrackType(BMTrackType.Surface);

效果：

trackOptions.setTrackType(BMTrackType.Default3D);