# Barycentric coordinates

- Author:
- Jonathan Holland

- Topic:
- Coordinates

The point D has bartcentric coordinates a, b, c with respect to the points A,B,C, where:
* a is the ratio of the red area to the total shaded area
* b is the ratio of the green area to the total shaded area
* c is the ratio of the blue area to the total shaded area
We have D=aA+bB+cC, and a+b+c=1.

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