Triangular mesh
mainprogram  mtriangm.f
subroutine  triangm (nx, ny, u, p)

Description: This program draws the image of the two-dimensional data of the coordinate 
of the nx*ny piece by giving position in the origin and length of one side, data number, 
colored code by the triangular mesh.

Input variable:
  nx : Data number of the x direction
  ny : Data number of the y direction
  u (3*nx*ny) : Input data
  p (3*nx*ny) : Auxiliary data necessary for the calculation

Drawing example: mtriangm.wrl