gwy_data_field_synth_gaussian_displacement ()

void
gwy_data_field_synth_gaussian_displacement
                               (GwyDataField *data_field,
                                gdouble sigma,
                                gdouble tau,
                                GRand *rng);

Fills a data field with correlated Gaussian noise, suitable as displacement field.

The number of calls to rng is unspecified; it will not be left in any defined state. However, the noise is filled from the data field centre. Meaning that changing tau will zoom in or out the Gaussian noise, preserving the centr (whereas changing sigma simply changes the amplitude).

Since: 2.59