通过风险源点位分析三级防控点查询修改

zhongrj

2025-02-11 b1e8a099eb3117bcbd5f2e0c9a2eb0accabd8cbf

 src/main/java/org/springblade/modules/yw/mapper/EmergencySpaceMapper.xml

@@ -52,4 +52,36 @@
        WHERE type = 1  AND is_deleted = 0
    </select>

    <!--通过空间分析点位，找到离风险源最近的防控点 风险源找1,1找2,2找3-->
    <select id="spatialAnalysisPoint" resultType="org.springblade.modules.yw.vo.EmergencySpaceVO">
        SELECT
            *,
            ST_Distance_Sphere (
                ST_GeomFromText(concat("POINT(",lng," ",lat,")")),
                ST_GeomFromText (concat("POINT(",#{emergencySpace.lng}," ",#{emergencySpace.lat},")"))
            ) AS distance
        FROM
            yw_emergency_space
        where lng is not null
        <if test="emergencySpace.preLevel!=null">
            and pre_level = #{emergencySpace.preLevel}
        </if>
        <if test="emergencySpace.firmId!=null">
            and firm_id = #{emergencySpace.firmId}
        </if>
        ORDER BY distance
        LIMIT 1
    </select>

    <!--查找距离当前点最近的线-->
    <select id="spatialAnalysisPointToLines" resultType="org.springblade.modules.yw.vo.EmergencySpaceVO">
        SELECT
        2 as preLevel,
        ST_AsText(geom) as geom,
        ST_Distance(ST_GeomFromText(concat("POINT(",#{emergencySpace.lng}," ",#{emergencySpace.lat},")")), geom) AS distance
        FROM yw_geom_info
        ORDER BY distance ASC
        LIMIT 1
    </select>

</mapper>