May 2019
Beginner to intermediate
650 pages
14h 50m
English
Content preview from Learn D3.js
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Choosing a projection
Probably the first consideration to be made when choosing a projection is the purpose of the map. Do you plan to use it for navigation? Do you plan to compare quantitative data represented as areas or lines? Is preserving shapes, angles and patterns important? What about direction and distance?
To choose a projection, it is useful to classify them according to the spatial properties that they preserve. A projection will always distort the projected subject in one way or another, but some properties may be preserved when distortion increases for others. A good projection is one where the properties of interest suffer the least distortion. Properties that can be represented on a projected map include:
- Distance
- Direction ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.