July 2018
Intermediate to advanced
358 pages
7h 17m
English
Content preview from Unity 2018 Augmented Reality Projects
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Map overlays
Map overlay is the combination of several spatial datasets to create a new vector output dataset. You can visualize this by stacking several maps of the same area. Another way to visualize this is to think of the Venn diagram overlay used in mathematics. There are three types of overlays – union, symmetric difference, and intersect overlay – that are used for different reasons, which will not discussed here as they fall outside the scope of this book:
- Union overlay is to combine geographic features and attribute tables of both inputs and output it to a single output
- Intersect overlay is to define the area where both inputs overlap and retains a set of attribute fields for each
- Symmetric difference overlay is to define the ...
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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.