Function t8_geom_linear_interpolation

• Defined in File t8_geometry_helpers.h

Function Documentation

void t8_geom_linear_interpolation(const double *coefficients, const double *corner_values, int corner_value_dim, int interpolation_dim, double *evaluated_function)

Interpolates linearly between 2, bilinearly between 4 or trilineraly between 8 points.

Parameters:

• coefficients – [in] An array of size at least dim giving the coefficients used for the interpolation

• corner_values – [in] An array of size 2^dim * 3, giving for each corner (in zorder) of the unit square/cube its function values in space.

• corner_value_dim – [in] The dimension of the corner_values.

• interpolation_dim – [in] The dimension of the interpolation (1 for linear, 2 for bilinear, 3 for trilinear)

• evaluated_function – [out] An array of size corner_value_dim, on output the result of the interpolation.