It is well known that matrix operation is easy to be executed in computer. To establish high efficient
data structures, matrixing method was applied to the virtual netting models. By adding virtual mass points
(hollow circles in Fig. 4) to Figs. 2 and 3, all the mass points (actual or virtual) constituted two matrixes:
9×9 matrix for knot netting and 5×5 matrix for knotless netting (Fig. 4). A matrix with the mesh bars
constituted a matrixing network. In such matrixing network, actual mass points interacted with each other
through the mesh bars. Virtual mass points braced only the matrix and never interacted with either actual
mass point or virtual mass point.