Standard Library procedure that plotsa two-dimensional array as a pseudo three-dimensional plot on the currently selected graphics device.
space
(MAX(A) - MIN(A))/ROWS
.
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OPENR, 1, !Data_dir + 'pikeselev.dat' data = FLTARR(60, 40) READF, 1, data CLOSE, 1 THREED, data SURFACE, data