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DeepSeek智能时空数据分析（九）：NL2SQL绘制河流名字-如何给轨迹添加说明文字

news 来源：原创 2025/8/15 21:17:39

序言：时空数据分析很有用，但是GIS/时空数据库技术门槛太高

时空数据分析在优化业务运营中至关重要，然而，三大挑战仍制约其发展：技术门槛高，需融合GIS理论、SQL开发与时空数据库等多领域知识；空间数据缺乏直观可视化工具，导致分析结果难以高效传达；现有产品成本高昂，限制了中小企业应用。

本系列文章将借助DeepSeek等大模型的能力，通过NL2SQL等免费/低成本 AI GIS智能体能力，帮助不熟悉SQL、GIS但是有空间数据分析需求的读者实现最常用的分析功能。

前序文章

《DeepSeek智能时空数据分析（一）：筛选特定空间范围内的POI数据》

《DeepSeek智能时空数据分析（二）：3秒对话式搞定“等时圈”绘制》

《DeepSeek智能时空数据分析（三）：专业级地理数据可视化赏析-《杭州市国土空间总体规划（2021-2035年）》》

《DeepSeek智能时空数据分析（四）：绘制行政区域并定制样式
》

《DeepSeek智能时空数据分析（五）：基于区域人口数量绘制地图散点-大模型搜集数据NL2SQL加工数据》

《DeepSeek智能时空数据分析（六）：大模型NL2SQL绘制城市之间连线》

《DeepSeek智能时空数据分析（七）：4326和3857两种坐标系有什么区别？各自用途是什么？》

《DeepSeek智能时空数据分析（八）：NL2SQL绘制河流-轨迹缓冲区如何生成》

参考地理数据可视化案例

前文所述《杭州市国土空间总体规划（2021-2035年）》（公开稿），有很多经典的行政区域绘制案例，例如：
在这里插入图片描述
参考这个区域空间布局结构规划图，本文将分享如何为生态空间格局规划图中的河流要素添加文字标签。

第一步：接入河流标签数据

按前文进展，为钱塘江各段加上文字标签，现有样例数据如下：（复制后保存为json格式）

{"type":"FeatureCollection","features":[{"type":"Feature","id":4170,"properties":{"_draw_type":"point","adcode":"钱"},"geometry":{"type":"Point","coordinates":[120.27066566492962,30.27999041124512],"modify_uid":"31"},"bbox":[120.27066566492962,30.27999041124512,120.27066566492962,30.27999041124512]},{"type":"Feature","id":4370,"properties":{"_draw_type":"point","adcode":"塘"},"geometry":{"type":"Point","coordinates":[120.34834359056777,30.247462853987077],"modify_uid":"29"},"bbox":[120.34834359056777,30.247462853987077,120.34834359056777,30.247462853987077]},{"type":"Feature","id":4587,"properties":{"_draw_type":"point","adcode":"江"},"geometry":{"type":"Point","coordinates":[120.41845629745617,30.3074830227533],"modify_uid":"37"},"bbox":[120.41845629745617,30.3074830227533,120.41845629745617,30.3074830227533]},{"type":"Feature","id":7850,"properties":{"_draw_type":"point","adcode":"富"},"geometry":{"type":"Point","coordinates":[119.83618585651003,29.90083541063161],"modify_uid":"17"},"bbox":[119.83618585651003,29.90083541063161,119.83618585651003,29.90083541063161]},{"type":"Feature","id":8087,"properties":{"_draw_type":"point","adcode":"春"},"geometry":{"type":"Point","coordinates":[119.88264358705864,29.947718388058654],"modify_uid":"12"},"bbox":[119.88264358705864,29.947718388058654,119.88264358705864,29.947718388058654]},{"type":"Feature","id":8337,"properties":{"_draw_type":"point","adcode":"江"},"geometry":{"type":"Point","coordinates":[119.93533040412294,29.995171636846784],"modify_uid":"10"},"bbox":[119.93533040412294,29.995171636846784,119.93533040412294,29.995171636846784]},{"type":"Feature","id":9972,"properties":{"_draw_type":"point","adcode":"新"},"geometry":{"type":"Point","coordinates":[119.41304485234708,29.53115205169093],"modify_uid":"2"},"bbox":[119.41304485234708,29.53115205169093,119.41304485234708,29.53115205169093]},{"type":"Feature","id":10248,"properties":{"_draw_type":"point","adcode":"安"},"geometry":{"type":"Point","coordinates":[119.47754401,29.5335518],"modify_uid":"5"},"bbox":[119.47754401,29.5335518,119.47754401,29.5335518]},{"type":"Feature","id":10535,"properties":{"_draw_type":"point","adcode":"江"},"geometry":{"type":"Point","coordinates":[119.54072619348872,29.53668030273411],"modify_uid":"7"},"bbox":[119.54072619348872,29.53668030273411,119.54072619348872,29.53668030273411]}]}