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#1 2022-07-15 20:01:01

stratis
Member
Registered: 2022-05-20
Posts: 5

Coordinates for each grid point for generatd cube file

Hello,

Based on my understanding, a cube file contains the wavefunction value at each grid point. How can we find the coordinates for each grid point?

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#2 2022-07-16 08:31:32

Ignacio
Administrator
From: Uppsala
Registered: 2015-11-03
Posts: 1,079

Re: Coordinates for each grid point for generatd cube file

In line 3 you have the origin of the grid (G), and in lines 4-6 you have the 3 axes of each cell (lx, ly, lz). The value with indices ix iy iz (starting from 0) corresponds to coordinates G+ix*lx+iy*ly+iz*lz. There might be an offset of half a cell in some direction, I'd suggest experimenting with a simple H atom calculation to find out where the node/cusp of the orbitals is located.

See http://paulbourke.net/dataformats/cube/

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#3 2022-07-28 14:55:10

stratis
Member
Registered: 2022-05-20
Posts: 5

Re: Coordinates for each grid point for generatd cube file

Thanks!

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