GIS传道者 · 精选文章
共 1676 篇精选
Nearmap Wants to Make 4 cm Aerial Imagery a Near-National US Layer
Nearmap has announced an unusually ambitious expansion of its US aerial program. Beginning in January 2027, the company plans to combine a new product called Nearmap Reach with its
小程序阅读全文
Geofencing area spans two UTM zones
Question I'm, working on a geofencing project where I need to geofence, that is, track real time position of cattle, determine whether is inside or outside the fence and calculate
小程序阅读全文
Arcade Expression not showing minimum value in dynamic text for visible rows
Question I'm trying to insert dynamic text in a map layout that is showing a range of miles based on a BackMileNbr field using a map series based on bookmarks. I want to pull the m
小程序阅读全文
QGIS "Join Attributes by Nearest" yielding incorrect distances
Question I'm using QGIS 4.2 on a MacBook Air running on OS 26.6. I have a project with CRS USA_Contiguous_Lambert_Conformal_Conic ESRI:102004. The point geometry vector layers have
小程序阅读全文
因为AI，ThreeJS知名生态工作者也准备放弃了...
9 月 21 日，Three.js 圈子里挺有名的开发者 Dan Greenheck 发了一条长推，大意是自己在考虑摘掉 Three.js 这顶帽子，先把 Water Pro v4 做完，再想想接下来干什么。他自己表示这不是卖惨帖，自己也没百分百想清楚。小编觉得对做 WebGIS、数字孪生、三维可视化的同学，还是挺有参照意义的，今天就和大家聊聊。 查看原文配
小程序阅读全文
Connecting street centerlines for sDNA accessibility analysis
Question I am manually drawing and editing a street network for accessibility analysis using sDNA, and I am having some difficulty deciding how street centerlines should be connect
小程序阅读全文
Google Earth AI Puts Geospatial Agents to Their First Serious Test
Google has released the most substantial public evaluation yet of its experimental Geospatial Reasoning Agent. The headline is not simply that Gemini can operate geospatial tools.
小程序阅读全文
JSON field becomes QVariantList when exporting GeoPackage to GeoJSON
Question I'm fairly new to GIS and QGIS, and I'm still learning the best ways to work with larger geospatial datasets. I ran into an issue while trying to make my workflow more man
小程序阅读全文
Viewshed analysis with single layers in QGIS
Question I need some help with a viewshed analysis. It is for visualising a rabbit monitoring program. I have about 60 viewpoints in my AOI, that will be looked out from on a singl
小程序阅读全文
Digitising Historical Maps: Testing AI-Assisted Contour Tracing in QGIS
Case Study | AI-Assisted Tools | QGIS | ArchaeoTrace | Plugin Can an AI-assisted QGIS plugin actually speed up contour digitising, or does it just move the work around? We tested i
小程序阅读全文
WSEF2026世界太空经济论坛五大亮点抢先看
当太空经济从技术探索走向产业化发展，新的市场空间、商业模式与产业机会正在加速形成。 谁在定义太空经济的下一个十年？哪些技术正在推动产业变革？资本将流向哪里？商业航天又将如何实现规模化发展？ 11月24日—26日，WSEF2026世界太空经济论坛将在北京举行。本届论坛以 「太空经济的下一个十年」 为主题，汇聚政策制定者、产业领袖、科研专家、投资机构与创新创业者
小程序阅读全文
Automatically generating file path of shapefile location using ArcGIS Pro
Question I have thousands of shapefiles that I'll be adding into a single shapefile but I want to add the path of the pre-merged shapefile into the attributes table. How do I do th
小程序阅读全文