[SciPy-User] Field Liner Tracing
Nikolaus Rath
Nikolaus at rath.org
Fri Oct 29 08:51:37 EDT 2010
Hello,
I have a vector field defined on a 3D grid and would like to trace field
lines.
What's the best method to do this?
I suppose I could use scipy.integrate.odeint, but then I would have to
define my own dy/dt method that interpolates the values on the grid. It
seems to me that this is a task common enough for having a standard
solution somewhere in scipy already.
Also, I am bothered by the cost of having to define dy/dt as a Python
function. It seems to me that this function is probably called quite a
lot by the integrator and that Python overhead may easily become a
bottleneck...
It would be wonderful to have a method like trace_field_lines((Vx, Vy, Vz), X,
Y, Z) where (Vx, Vy, Vz) are 3d numpy arrays containing the components of
the vector field and X, Y, Z 1d grids containing the grid coordinates.
Is there anything like that around already?
Thanks,
-Nikolaus
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