yade-users team mailing list archive

[Václav Šmilauer <eudoxos@xxxxxxxx>]

> I would also like to read my times series of forces from a file. Is 
> there a python function that will accomplish. In the script examples I 
> saw multi.py that is supposed to read some values from a file, but it 
> didn't read from the file when I ran the simulation. I was wondering 
> how to use this function (or another one) properly to obtain forces 
> from file.
Do it just like you would in python:

forces,times=[],[]
for line in 
file('your.text.file.with.2.numbers.per.line.separated.by.whitespace')
    if len(line.split())<2: continue # skip empty lines
    f,t=[float(s) for s in line.split()]
    forces.append(f)
    times.append(t)

def applyForce():
    # find index of the time we are at or just after now in the series
    # this is quite suboptimal, since it traverses the array every time
    i=0;
    while times[i]<O.time: i+=1
    # and use force at that index
    f=force[i]

V.