Shulou(Shulou.com)06/01 Report--

This article is about how to use ggplot to easily solve the Taiji map, the editor feels very practical, so share with you to learn, I hope you can learn something after reading this article, say no more, follow the editor to have a look.

Ggplot's layer syntax gives users unlimited possibilities, coupled with their own flexible control of data manipulation, I really don't know what amazing works ggplot can show us.

This is not, Qingming Festival holiday boring me, with ggplot to complete the Taiji yin and yang map.

Library ("ggplot2")

Library (Cairo)

Library (ggmap)

The construction idea of the Taiji diagram is quite simple. The zero point of the Cartesian coordinate system is taken as the center of the circle, and all the other elements are composed of coordinates around the center of the zero point.

The picture involves a large circle.

Two large semicircular areas (the upper and lower black and white parts of Tai Chi)

Two small semicircle area diagrams (left and right semicircles of Tai Chi)

And black-and-white circles of hermaphroditic fish (here there is no constructed data but represented by solid dots).

The following is the data construction process:

Bigcirclex

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