MalaGIS

Sharing GIS Technologies, Resources and News.

Many users have reported that after switching to the Tianditu basemap in the China region of ArcGIS Pro, some imagery appears unclear and there are limited style options. Well, given the particular nature of our industry and the strict requirements for data legality and compliance, if data confidentiality is a concern, it is strongly recommended not to use map sources outside the China region. So, are there any other Chinese map sources available? Of course, I found a basemap service with decent clarity: the Jilin-1 map source. It offers a free usage quota for individuals, and I highly recommend it.

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Following recent announcements from the Ministry of State Security and the service suspension of ArcGIS Pro basemaps, many users have suggested switching to QGIS. However, does using QGIS truly ensure security and compliance? After several days of research, this article attempts to explore this issue and welcomes further discussion.

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In the previous article "ArcGIS Pro Basemap Service Access Issues in China and Solutions", we discussed the unavailability of ArcGIS Pro basemap services within China. One of the suggested solutions was to wait for an official fix. Surprisingly, the ArcGIS Pro team acted swiftly. Just yesterday (2025-09-18), upon opening ArcGIS Pro, the basemap services were already functioning normally again.

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Early yesterday morning, our team received several messages in the Malagis GIS backend asking why the ArcGIS Pro basemap services couldn’t be loaded. I went to check it out and was quite puzzled—everything was working smoothly on my end without any issues. So, I posted about it on social media and found that most friends couldn’t access it either, with only a few reporting it was working. Some also shared solutions in the comments.

After seeing everyone’s workarounds, I realized my tool had been set to the default mode all along. After switching to direct mode, a big exclamation mark indeed appeared.

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On September 10, 2025, the National Forestry and Grassland Administration (NFGA) announced Notice No. 12 of 2025, officially approving the establishment of the Huangyan Island National Nature Reserve. In accordance with the relevant provisions of the "Regulations of the People's Republic of China on Nature Reserves," the area, scope, and functional zoning of the Huangyan Island National Nature Reserve are hereby published. The reserve is located in Sansha City, Hainan Province, covering a total area of 3,523.67 hectares. This includes a core zone of 1,242.55 hectares and an experimental zone of 2,281.12 hectares. The primary conservation objective is the coral reef ecosystem. The main areas are shown in the figure below:

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Many friends often leave messages on the MalaGIS website asking if there are free DEM data download resources. While other users have shared numerous posts on this topic—covering data sources like SRTM, ASTER GDEM, ALOS, and Copernicus DEM—these are relatively professional datasets typically manageable only by GIS practitioners. So, are there tools suitable for beginners or the general public? For instance, a tool that allows online viewing of a region's terrain with 3D rendering effects without the need to download professional GIS or 3D software? Recently, I discovered a small tool called WorldViewR and would like to share it with you.

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Recently, Nano Banana has been explosively popular, with many novel use cases emerging online, such as generating figurines, image restoration, and architectural image generation models. Attracted by these, we also tried it out and discovered two small applications related to GIS. Today, we'd like to share the prompts with you (Code is Cheap, show me the talk).

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Last year, our team introduced how to load lunar datasets in Cesium. Now, one year later, Cesium has officially begun supporting the Mars dataset—Cesium Mars. Cesium Mars is a 3D Tileset designed to enable developers and researchers to quickly create visualizations and simulations of Mars. The dataset integrates laser altimeter data (MOLA) from NASA's Mars Global Surveyor (MGS), high-resolution stereo camera imagery (HRSC) from ESA's Mars Express, and color satellite image rendering, realistically recreating the visual appearance of Mars.

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In the previous article titled "Displaying Selected Layer Count in QGIS with PyQGIS - MalaGIS", the author introduced a method to quickly view the number of selected layers using QGIS's Python API. However, if you need this functionality, you must open QGIS, then open the Python Console, locate the saved Python script file, and run it every single time. Although this process is simple, it can become tedious after repeated use. So, is there a way to automatically run a Python script when QGIS starts up? The author searched online and finally found a temporarily viable method to share today.

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A few days ago, while browsing the Malagis GIS group, someone asked if there was a source to download global wildfire data. At that time, I didn’t have relevant resources on hand. After doing some research, I found NASA FIRMS, a website that supports GIS visualization of data and allows online downloads for viewing and analysis in software like ArcGIS and QGIS. Today, I’d like to share this resource with everyone.

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