From the course: Advanced QGIS Analysis with AI and Machine Learning

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Overlay data

Overlay data

Overlay analysis is very similar to spatial joins, except you modify the original spatial data as well as attaching the attributes. You may clip it, you may merge it, you may cut it. There's lots of ways to modifying the original spatial data, as well as attributes, when you use an overlay analysis. Let's do that now. Here's the premise. We want to find all the parcels within 100 meters of a park that's deemed residential. So, what do we need to do that? Well, we need three things. We need Parks, Parcels and Zoning. So let's bring in the Parcels. There we are. Let's bring in the Parks, PARKS.shp. And the last thing we want is ZONING. There we go. So let's make sure the ZONING is on the bottom. There we are. And so let's filter out the ZONING. The very first thing we'll do is we'll query the Source of the zoning to make sure it's just residential. So I say "CATEGORY"= and I hit All, and we want "Residential". Woah, I've got a typo there, off to say "CATEGORY" = "Residential". There we…

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