! Example by Jan Soubusta

size 11 11

mmax = 16   ! size of the matrix

alfa = 25   ! rotation of the cube in horizontal direction
beta = 35   ! rotation of the cube in vertical direction

z_axis_min  = -.5
z_axis_max  = 0.5
persp_scale = 3      ! perspective scale

include "matrix_3D.gle"

z0 = normalize_z(0)  ! origin of z-axis at 0

! compute position of the perspective point of infinity (xgrp, ygrp)
project_3D2D 0.5 0.5 0.5
xgrp = xgr+0; ygrp = ygr-3

begin object graph

   ! draw the graph based on data matrix in "xim03.dat"
   draw_bar_graph_3d "xim03.dat"

   ! draw the axis ticks
   draw_z_ticks z_axis_min z_axis_max .25
   draw_xy_ticks2 5

   ! draw the x-axis tick labels
   label_x 1  "HHHH"
   label_x 6  "HVHV"
   label_x 11 "VHVH"
   label_x 16 "VVVV"

   ! draw the y-axis tick labels
   label_y 1  "HHHH"
   label_y 6  "HVHV"
   label_y 11 "VHVH"
   label_y 16 "VVVV"

end object

! center the graph on the page
amove pagewidth()/2 pageheight()/2
draw graph.cc