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  • mongodb 查询坐标附近数据

    var vPoint = new GeoJsonPoint<GeoJson2DCoordinates>(new GeoJson2DCoordinates(user_x, user_y));

    var vFilter = Builders<t_s_S01>.Filter.Where(v => v.isOpen == true);
    vFilter &= Builders<t_s_S01>.Filter.Where(v => v.auditInfo.auditStatus == auditInfo.auditResult_2);
    if (vOpenRange)
    {
    vFilter &= Builders<t_s_S01>.Filter.NearSphere(v => v.coordinate, vPoint, vMaxDis);
    }
    List<t_s_S01> vList = new MongoDBHelper().queryData(vConnString, vDataBaseName, "t_s_S01", vFilter).ToList();

    这个返回间距

    var vMongoCollection = new MongoDBHelper().getMongoCollection<t_s_S01>(vConnString, vDataBaseName, "t_s_S01");

    string vParameter = "{$geoNear: { near: { type: 'Point', coordinates: [ " + user_x + ", " + user_y + "] },maxDistance:" + vMaxDis + ", distanceField: 'distance',spherical: true }} ";

    //var vSort = new SortDefinitionBuilder<t_s_S01_out>().Ascending(v => v.distance);
    //var myQuery = PipelineDefinition<geo, geo_out>.Create(parameter).Skip(0).Limit(5).Sort(vSort);

    var vQuery = PipelineDefinition<t_s_S01, t_s_S01_out>.Create(vParameter).Skip(skip).Limit(limit);

    List<t_s_S01_out> vOutData = vMongoCollection.Aggregate(vQuery).ToList();
    return vOutData;

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  • 原文地址:https://www.cnblogs.com/xubao/p/12461006.html
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