On Fri, May 09, 2014 at 03:07:33PM +0400, Daniil Bratashov wrote: > On Fri, 9 May 2014 10:48:40 +0000 > José Coutinho <[email protected]> wrote: > > > Dear Gwyddion users, > > I am looking for a software suitable to look at simulated STM imagery > > from first principles codes and Gwyddion seems like a great > > contender. I would like to know if Gwyddion is able to take a volume > > data file containing the local density of states within > > LDOS(E+dE,x,y,z), ie, a scalar value on a N1xN2xN3 regular grid, and > > produce a 2D topographical-like surface, where for each (x,y) > > coordinate we would have the "highest" z-coordinate (tip heigh) for > > which LDOS has a user-defined value? Hopefully this would result in > > an approximate constant-current STM image. Many thanks, /J > > In general, yes, but some work will be required there to implement > data loading and some small work in volume data presentation code.
The visualisation module should, as intended, be able to do this but it is a rotting bag of badgers and Petr does not seem to have much time to develop it futher now... If you load the data into Gwyddion as volume data (for which a relatiely simple import module should suffice) then you can just use the Change Preview function to get an image of the maximum value. I am not actually sure if this is relevant because z is once described as the grid coordinate (in which case the highest value would be constant) and once as something to plot for (x,y). So I am probably missing something. Regards, Yeti ------------------------------------------------------------------------------ Is your legacy SCM system holding you back? Join Perforce May 7 to find out: • 3 signs your SCM is hindering your productivity • Requirements for releasing software faster • Expert tips and advice for migrating your SCM now http://p.sf.net/sfu/perforce _______________________________________________ Gwyddion-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gwyddion-users
