From 93264081cc9cbdf829d885d898cb06f9af2ad910 Mon Sep 17 00:00:00 2001
From: zhongrj <646384940@qq.com>
Date: Mon, 10 Feb 2025 18:14:17 +0800
Subject: [PATCH] 增加空间分析接口，增加geojson文件读取导入
---
src/main/java/org/springblade/modules/yw/mapper/EmergencySpaceMapper.xml | 29 +++++++++++++++++++++++++++++
1 files changed, 29 insertions(+), 0 deletions(-)
diff --git a/src/main/java/org/springblade/modules/yw/mapper/EmergencySpaceMapper.xml b/src/main/java/org/springblade/modules/yw/mapper/EmergencySpaceMapper.xml
index b6226c3..12dabbc 100644
--- a/src/main/java/org/springblade/modules/yw/mapper/EmergencySpaceMapper.xml
+++ b/src/main/java/org/springblade/modules/yw/mapper/EmergencySpaceMapper.xml
@@ -52,4 +52,33 @@
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>
+ 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>
--
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