Is it possible to import a .csv data file to FEniCS

Question

I need to import an initial condition for a vector-valued solution of a PDE in 2 dimensions that is defined as a table in a .csv text file. The file has four columns representing x- and y- coordinates of a point and the components of a vector function at that point, respectively. Is it possible to import this data into a FEniCS code and interpolate it over an already defined mesh? Thanks in advance,

Dmitry

Answer 1

If you are using Python, there is a csv reader module. Interpolating to points is possible, but something you would need to implement yourself, e.g by writing an eval() method for an Expression.