PhD Research Journals

Barycentric coordinates are triples of numbers (t1, t2, t3) corresponding to masses placed at the vertices of a reference triangle (A1, A2, A3). These masses then determine a point P, which is the geometric centroid of the three masses, and is identified with coordinates (t1, t2, t3) . The vertices of the triangle are given by (1,0,0) , (0,1,0) , and (0,0,1).

To know more go to http://mathworld.wolfram.com/BarycentricCoordinates.html
Read also: http://www.math.fau.edu/yiu/barycentric.pdf