[cfbaptista]

Probes and sampleDicts can be used to interpolate volVectorFields onto a cloud of points. I am, however, interested how I can perform such an interpolation from inside a solver? More specifically:

Starting from a C array (or C++ vector) containing the coordinates

[x1, y1, z1, x2, y2, z2, ..., xn, yn, zn]

how can I interpolate a volVectorfield (e.g. U) onto the coordinates specified by the C array (or C++ vector)?

ps: I do not require to write the interpolated field to disk, I only need it in RAM