Maths - Cartesian coordinate systems - Barycentric

Barycentric coodinates allow the position of a point to be defined relative to the vericies of a triangle.

Usually two coordinates are required to define a point in a plane but barycentric coodinates require three points and so there is some redundancy of information.

Each of the three coordinates measures the distance from one of the vertices, measured by the propotion of the area of the triangle enclosed by the point and the other two verticies.

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