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写了个工具ArcGIS批量下载影像图!分享给大家

  • 2026-10-05 03:45:44
写了个工具ArcGIS批量下载影像图!分享给大家

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前期文章我们推送了在线影像下载的上篇:
ArcGIS下载在线影像地图(手工)
今天的下篇文章我们就要来介绍一下如何通过编写ArcGIS脚本工具下载ArcGIS调用的影像地图。

下面我们介绍一下工具的实现,获取工具请看文后说明。一般情况下使用,再也不用搞什么地图下载器了。

一、 实现技术路线说明

  1. 我们以下载ESRI的World Imagery Wayback的影像底图为例,加载影像地图和确定下载范围。
2. 如上图确定下载范围之后,我们第一个考虑的是借鉴上一期推文《ArcGIS下载在线影像地图(手工)》导出带坐标的tiff格式就好。但是此次下载范围较大,且要求分辨率高,直接导出不能满足如下图的下载分辨率的要求。
3. 这时候,我们就可以思考,如果我们借鉴之前的ArcPy批量制图的课程,将下载范围分割成多个小块,分幅下载,之后利用ArcGIS或者Erdas进行海量数据的镶嵌拼接,就可以达到我们的要求。

‍

4. 我们在ArcPy结合数据驱动模块的批量制图(GIS思维)教程中使用的是数据驱动模块来实现批量出图。我们这次不用旧方法,利用数据访问模块的游标来访问创建每个格网的范围,之后下载该范围的带坐标的tiff格式影像图。格网的创建利用的是制图工具—>数据驱动页面—>格网索引要素,在创建格网中重要的是要设置格网大小以满足合适的分辨率,具体我会在后面的视频解说中详细介绍。

5. 下面贴一下工具的核心代码,整体程序的介绍,工具的介绍,在下文的视频解说中进行详细说明。

#核心代码,并非全部代码#利用游标获取格网的每条记录,读取格网要素的几何与两个字段值with arcpy.da.UpdateCursor(lyr, ['SHAPE@','PageName','PageNumber']) as cursor:    for row in cursor:        mapName=str(row[1])        fullpath=outpath+mapName+".tif"        #将数据框的范围设置当期迭代格网格网的范围        df.extent = row[0].extent        #将数据框比例尺缩小,以便让各个下载的分幅影像有重叠,后续镶嵌不会有缝隙等        df.scale=df.scale*1.05        # df_export_width=1600,df_export_height=1600控制了导出分辨率        # 可以更改输出大小控制分辨率,不要盲目设置过大。        arcpy.mapping.ExportToTIFF(mxd,fullpath,df,df_export_width=1600,df_export_height=1600,geoTIFF_tags=True)        arcpy.AddMessage("批量下载第"+str(row[2])+"/"+str(featureNum)+"幅")arcpy.AddMessage("下载结束!,完成"+str((row[2]/featureNum)*100)+"%")

7.  工具使用。工具初步实现,我没有把创建格网、下载分幅影像图、镶嵌整合在一个工具内,后续抽空我把工具整合一下。下面我们就分步骤先来,也是很快的。

  1.   第一步根据下载范围创建好格网。

  2. 打开编写的“批量下载在线影像图”工具,设置后,进行批量下载就可以了。

  3. 利用镶嵌工具实现分幅的批量下载。

二、 视频解说

三、下载影像工具获取

点赞本文

后台回复“影像批量下载”,即可获得该工具

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基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2026-10-05 07:18:06 HTTP/1.1 GET : http://yeyulingfeng.com/a/493647.html
  2. 运行时间 : 0.105594s [ 吞吐率:9.47req/s ] 内存消耗:4,392.43kb 文件加载:140
  3. 缓存信息 : 0 reads,0 writes
  4. 会话信息 : SESSION_ID=7ea3611c003ffe37ff20e17eef44ffff
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  1. CONNECT:[ UseTime:0.000649s ] mysql:host=172.18.0.4;port=3306;dbname=no_yeyulingfeng;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000848s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000449s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000347s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000631s ]
  6. SELECT * FROM `set` [ RunTime:0.000306s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000858s ]
  8. SELECT * FROM `article` WHERE `id` = 493647 LIMIT 1 [ RunTime:0.000443s ]
  9. UPDATE `article` SET `lasttime` = 1791155887 WHERE `id` = 493647 [ RunTime:0.001771s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000385s ]
  11. SELECT * FROM `article` WHERE `id` < 493647 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000554s ]
  12. SELECT * FROM `article` WHERE `id` > 493647 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000443s ]
  13. SELECT * FROM `article` WHERE `id` < 493647 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000775s ]
  14. SELECT * FROM `article` WHERE `id` < 493647 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000840s ]
  15. SELECT * FROM `article` WHERE `id` < 493647 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000770s ]
0.115809s