January 2019
Beginner
164 pages
3h 15m
English
Content preview from QGIS Quick Start Guide
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Scratch layers
Scratch layers are temporary vector layers that remain present while the QGIS project you are working on is open, but are lost upon closing—they are stored in memory. Scratch layers are useful when you want to quickly draw some features on a map. The benefit is that you don't need to think about file formats and locations for your temporary data. If you find you need to keep the layer, it can be exported as a permanent file—we will look at this in the next section.
To create a scratch layer, select Layer | Create Layer | New Temporary Scratch Layer. Select Polygon / CurvePolygon as Geometry type, as shown in the following screenshot:
Creating a scratch layer
Digitize around one of the water bodies on Fire_Island using the ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.