public functions */

change a string into integer This is a bit over the top because c++ offers nicer ways */

print erro message without output parameters

get a input line and store the results in a string array

print erro message with one parameter with 1 out put parameter

print erro message with two out put parameters

change a string into double kreiza changed everything about because valgrind complained

public functions

function for computing the number of Gaussean points,their local coordinates and weights, return: number of Gaussean point

Print message to console and log file

compute data of an element

Two different ways of error handling depending on `confirm_errors`

reflect an element used by the Fast Multipol BEM (FMBEM)

compute parameters at a integration point, return: Jacobian

get curent positions of selected vertices

compute the magnitude, dB value and phase of the sound pressure or the particle velocity

reflect a point or a vector in a given direction, return: factor of the reflection

compute the spherical Hankel funktions of the first kind under a given order (see [1], eq. (19))

compute the coordinates and weights of a given number of the Gauss integration points

compute the global coordinates of a point in an element

compute the unit normal vector to an element at a given poit, return: Jacobean at the point

perform the interpolation along a curve

generate clusters for the SLFMBEM and MLFMBEM

generate the subelements, return: number of subelements

compute the Legendre polynomes under a given order

compute the product of the coefficient matrix and a vector

Find unfinished instances (frequency steps) in a Mesh2HRTF project folder Parameters ---------- project : str Full path of t

check the generated clusters, see if each boundary elements is included by the clusters just once

compute a near field equation if the source point is located in a surface element (see eq. (13) [1])

compute the contribution of a surface element to the T-matrix and the T-vector kreiza: okay this is a bit tricky, because a) Chen uses a negative

compute the unit vector and weight at each integration point of a unit sphere surface

compute the contributions of the incident waves to the velocity potential and the particle velocity at a given point

compute the contribution of an element to the T-vectors

delete arrays generated by addressing computations

compute the contributions of the incident waves to the right hand side vector

multiplication of a vector with the inverse of the incomplete LU-matrices

perform the numerical integration over a subelemnt in order to compute its contributions to the potential and velocity at an internal point, return: c

reflect an element in a given direction

function to perform the regular integration over an element

function for performing the singular integration over an element (see eq. (14) in [1]), the idea is taken from the paper of Kirshnasamyetal where the

Write complex pressure or impulse responses to a SOFA object. Parameters ---------- data : numpy array The data as an array

Return the number of currently running NumCalc instances

Read the nodes and elements of the evaluation grids or object meshes. Parameters ---------- folder : str Folder containing t

Read the sound pressure on the object meshes or evaluation grid.

compute distance between two points, return: the result

generate the D-matrices at all levels

create the arrays for storing the near field matrix of SLFMBEM or MLFMBEM

create the far field matrices for ML-FMBEM (called by NC_ControlProgram)

compute the auxiliary arrays used for storing the sparse far field matrices for the SLFMBEM (called by NC_ControlProgram)

generate the S-matrices at all levels

generate the T-matrices at all levels

assemble the contributions of an element to the near field coefficient matrix and right hand side vector

assemble the contributions of an element to the coefficient matrix and the right hand side vector (TMEM)

compute the D-matrices for ML-FMM (see eq. (18), (26) in [1])

compute the D-matrix for SL-FMMM (see eq. (18) in [1])

compute the near field equation system for ML-FMM

compute the near field equation system for SL-FMM

compute the S-matrices for ML-FMM (see eq. (21), (26) in [1])

compute the S-matrix for SL-FMM (see eq. (21) in [1])

generate the fast multipole BEM equation system

generate the equation system of the traditional BEM (TBEM)

compute the T-matrix and the T-vector for ML-FMM

compute the T-matrix and the T-vector for SL-FMM

-------------------------------------------------------------------------- << A11 >> seek very small clusters, attach them to the nearst ones and canc

reflection of the element clusters of a given level with respect to the symmetry planes

reflections of the element clusters with respect to the symmetric planes (for SLFMBEM)

compute the arrays for storing data of the clusters for SLFMBEM

compute a row of the equation system in case that the source point is located in a surface element (see eq. (13) in [1])

compute the frequencies

compute the scaling vector

function to compute the T-vectors for the ML-FMM

compute the T-vector for the SL-FMM

compute contributions of the boundary elements to the sound pressures and velocities at the internal points by using the FMBEM

compute contributions of the elements to the sound pressure, velocity and energy intensities at a given internal point by using the traditional BEM

control program

the main program for addressing computations

destroy the incomplete L- and U-matrices

estimate number of levels for MLFMBEM

output informations

generate the cluster structure at a given level

generate the cluster tree for MLFMBEM