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When we use a volumetric data-visualization software (such as VESTA and XCrysDen),
the acceptable operation is dependent on the data format and the keyword.
The current version of VESTA (at 2015/8) cannot display a periodic structure
with the Gaussian cube format input file;
we have to use a periodic XSF format-input file to display a periodic structure.
OpenMX produces Gaussian cube format files of the charge/spin density,
Kohn-Sham orbitals, eiggenchannels, and so on;
A tool (cube2xsf) to convert the Gaussian cube format to the periodic XSF format is prepared.
The usage of it is as follows:
$ cube2xsf a.cube $ cube2xsf b.cube.bin $ cube2xsf a.cube b.cube.bin $ cube2xsf *.cube.binThen, files that have
.xsf extention are generated.