Isosurface plot

[\"Niedermayr, Arthur\"]

Hello everybody,

I want to make a Fermisurface plot (isosurface plot) with octave.

I use the following commands:

the first one to insert the attached file,

and the second one to make an isosurface plot according to the manual (https://www.gnu.org/software/octave/doc/interpreter/Three_002dDimensional-Plots.html).

>> M=load ("-ascii", "FERMISURF.OUT")

>>  isosurface (M(1:end,1), M(1:end,2), M(1:end,3), M(1:end,4), 0.0);

M(1:end,1), M(1:end,2), M(1:end,3) are indicating the first 3 columns, i.e. the x,y,z coordinates, M(1:end,4) indicates the value at the x,y,z coordinate and 0.0 is the isovalue.

I already checked the output of M(1:100,1), I think it should be fine.

But I get the following errors which I don't understand at all:

error: isosurface: V must be a non-singleton 3-dimensional matrix

error: called from

    isosurface>__get_check_isosurface_args__ at line 307 column 5

    isosurface at line 152 column 42

Do you have any suggestions?

Thank you in advance!

Best regards,

Arthur Niedermayr

FERMISURF.OUT
Description: Binary data