Find lines entering a polygon with QGIS
Hiking & ActivitiesFinding Lines Entering a Polygon with QGIS: A More Human Approach QGIS, that trusty open-source Geographic Information System, is a real workhorse when it comes to spatial data. And let’s face it, sometimes you need to know which lines are actually entering a polygon. Think of it like this: you might want to see which
Extract data from a WMS with database
Hiking & ActivitiesGetting Data Out of a WMS and Into Your Database: A Human’s Guide Okay, so you’ve got a Web Map Service (WMS) – think of it as a way to grab a picture of a map over the internet. It’s like asking a GIS server to send you a screenshot of its map database. But
Check Geometry – Bad Envelope
Hiking & ActivitiesCheck Geometry – Bad Envelope: A Deep Dive (Human Edition) Alright, let’s talk about something that might sound a bit dry – “bad envelopes” in geometry. But trust me, if you’re dealing with engineering, manufacturing, or even maps, this is something you’ll want to wrap your head around. Basically, it’s about making sure your digital
Small sample size for geographically weighted regression; limitations
Hiking & ActivitiesGeographically Weighted Regression: When Less Data Means More Problems Okay, so you’re diving into Geographically Weighted Regression (GWR). Smart move! It’s a seriously cool technique for spotting how relationships between things change across a map. Forget assuming one size fits all – GWR lets you build a separate little regression model for each location, giving
How to destripe the thermal band in SLC_off LandSat 7 ETM+ data?
Hiking & ActivitiesTaming the Stripes: Getting the Most Out of Landsat 7’s Thermal Band After the SLC Failure Landsat 7. It’s been orbiting our planet, diligently collecting data, since 1999. A real workhorse, right? But then, back in May 2003, things got a little…stripy. The Scan Line Corrector (SLC), the gizmo responsible for keeping the images nice
Select by attribute using fiona
Hiking & ActivitiesDigging into Data: How to Pick Out Exactly What You Need with Fiona Fiona. Ever heard of it? If you’re wrestling with geospatial data in Python, it’s a name you should know. Think of it as your friendly translator for all sorts of map files – Shapefiles, GeoJSON, you name it. It’s built on some