Attribute tables can be intimidating until you learn how to read them. To get a feel for how they work, load a small vector layer like roads, buildings, or administrative boundaries. Then open the attribute table before doing anything else…
Sometimes you open a GIS project with roads, districts, aerial photos, elevation models, and places displayed at the same time. Even though they are shown on one map, they do not all store data in the same way. Some are…
You load a new layer onto your canvas and you expect it to show up adjacent to all the other layers. But it appears in the middle of the ocean, is out of the extent, or covers another country altogether.…
A layer might disappear from your map even though the data in it is fine. You could have a polygon layer with solid fills drawn on top of your road layer. The roads are there but you can’t see them.…