Extracting river/canal centerlines is a common task in GIS data processing. Users of ArcMap or ArcGIS Pro likely find it straightforward. Recently, many colleagues have started exploring QGIS, someone in My GIS Group asked about this, making it a good time to document the process.
PS: The author will focus on introducing methods to achieve ArcGIS-equivalent functions in QGIS. If you have specific needs in this area, feel free to leave a comment.
In a previous article "Practical Application of Geo Hound: Extracting Wuhan's Unified Planning Map Services for GIS Analysis", I demonstrated using Geo Hound to access Wuhan's planning map data in QGIS. A key objective was comparing land-use planning attributes against reality to identify discrepancies. While I mentioned using layer swipe for this comparison, many readers inquired about implementing swipe functionality in QGIS.
Share an official ESRI ArcGIS Pro tutorial book. The book uses ArcGIS Pro version 3.1. If you need this version, you can download it from our site. Refer to "Share ArcGIS Pro 3.1 'Learning Edition' Complete Installation Package (Includes Chinese Language Pack, Updated to 3.1.7)".
This PDF comes from the MalaGIS WeChat group. It is not a scanned copy but a high-quality original, making it an excellent resource for learning both GIS technology and English.
GIS Tutorial for ArcGIS Pro 3.1 is a widely acclaimed introductory textbook on Geographic Information Systems (GIS). Co-authored by Wilpen L. Gorr and Kristen S. Kurland, renowned educators from Carnegie Mellon University, and published by Esri Press, this fifth edition was released in June 2023. Designed specifically for ArcGIS Pro 3.1, it provides a systematic and practical learning path for beginners with no prior GIS experience.
Following my previous article "This Certification is Highly Valuable for GIS Job Seekers, Yet Overlooked by Many", which helped numerous GIS professionals advance their careers, a middle school geography teacher recently requested vector data for China's geographic regional partitions for classroom presentations. After research, I'm sharing this valuable dataset.
Regions Included:
Following my previous article on extracting Wuhan's planning map services using Geo Hound, the original Wuhan data source implemented access restrictions. For a recent leadership demonstration, I identified an alternative: Shanghai's Detailed Planning Map service.
Note: While workarounds exist for Wuhan's restricted data, this article focuses on ethically accessible sources.
Shared by members of the MalaGIS community (special thanks!), this official platform provides comprehensive urban planning data:
https://shanghai.tianditu.gov.cn/xg/map.html
Author: An anonymous GIS professional specializing in astronomy, geography, remote sensing, and geomancy.
Tianditu (National Platform for Common Geospatial Information Services), hosted by the Ministry of Natural Resources, provides public online geospatial services and promotes geospatial data sharing. For GIS professionals, a common requirement is loading various online basemaps. Tianditu offers convenient services for desktop software like ArcMap and QGIS. While QGIS has mature plugins, this guide focuses on ArcMap users.
Following my previous article "GIS Data: Global Time Zone Boundary Data (SHP Format)", several readers requested global continent boundary datasets. Surprisingly, this data proved readily available. Below is a comparative overview of three authoritative sources.
Data Preview: 
Geo Hound is a browser extension that automatically captures map service links from web pages and centralizes their management. In a previous article, I introduced this tool using a Japanese map service example. To demonstrate its practical value, I'll showcase its application with Wuhan's Unified Planning Map.
This platform integrates legally approved regulatory plans, including:
Managed by Wuhan Planning Bureau, it dynamically updates per national/local regulations.
Access:
http://whonemap.zrzyhgh.wuhan.gov.cn:8020/
(Note: The site uses HTTP instead of HTTPS)
A reader recently noted that my earlier guide on purchasing licensed ArcGIS Pro is outdated. Upon review, I confirmed this—Esri no longer offers ArcGIS Desktop 10.8.2 for personal purchase, leaving only ArcGIS Pro available. Essentially, individual users can no longer legally acquire Desktop versions.
When working on data processing projects with ArcGIS Desktop (non-Pro version), extending arcpy functionality often requires installing third-party libraries. Since Python 2 doesn't include pip by default, this guide outlines the installation process.
C:\Python27\ArcGIS10.X)
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