sep_get_number_grid_axes - get number of grid axes
int sep_get_number_grid_axes (tag_history,n_axis)
tag of History File
Number of axes
-1= if fails for other reasons
0= if successful
+2= if tag_history is an Sep77 History File
Get number of axes in grid file
the sep_get_number_header_axes manpage, the sep_get_number_data_axes manpage
sep3d