#include <grass/N_pde.h>
Go to the source code of this file.
Function Documentation
◆ N_alloc_gradient_2d()
| N_gradient_2d* N_alloc_gradient_2d | ( | void | ) |
Allocate a N_gradient_2d structure.
- Returns
- N_gradient_2d *
Definition at line 26 of file n_gradient.c.
References G_calloc.
Referenced by N_create_gradient_2d().
◆ N_alloc_gradient_3d()
| N_gradient_3d* N_alloc_gradient_3d | ( | void | ) |
Allocate a N_gradient_3d structure.
- Returns
- N_gradient_3d *
Definition at line 149 of file n_gradient.c.
References G_calloc.
Referenced by N_create_gradient_3d().
◆ N_alloc_gradient_field_2d()
| N_gradient_field_2d* N_alloc_gradient_field_2d | ( | int | cols, |
| int | rows | ||
| ) |
Allocate a N_gradient_field_2d.
The field arrays are of type DCELL.
- Parameters
-
rows - number of rows of the 2d array from which the gradient should be calculated cols - number of cols of the 2d array from which the gradient should be calculated
- Returns
- N_gradient_field_2d *
Definition at line 896 of file n_gradient.c.
References N_gradient_field_2d::cols, DCELL_TYPE, G_calloc, G_debug(), N_alloc_array_2d(), N_gradient_field_2d::rows, N_gradient_field_2d::x_array, and N_gradient_field_2d::y_array.
Referenced by N_compute_gradient_field_2d().
◆ N_alloc_gradient_field_3d()
| N_gradient_field_3d* N_alloc_gradient_field_3d | ( | int | cols, |
| int | rows, | ||
| int | depths | ||
| ) |
Allocate a N_gradient_field_3d.
The field arrays are always of type DCELL_TYPE.
- Parameters
-
cols - number of cols of the 3d array from which the gradient should be calculated rows - number of rows of the 3d array from which the gradient should be calculated depths - number of depths of the 3d array from which the gradient should be calculated
- Returns
- N_gradient_field_3d *
Definition at line 993 of file n_gradient.c.
References N_gradient_field_3d::cols, DCELL_TYPE, N_gradient_field_3d::depths, G_calloc, G_debug(), N_alloc_array_3d(), N_gradient_field_3d::rows, N_gradient_field_3d::x_array, N_gradient_field_3d::y_array, and N_gradient_field_3d::z_array.
Referenced by N_compute_gradient_field_3d().
◆ N_alloc_gradient_neighbours_2d()
| N_gradient_neighbours_2d* N_alloc_gradient_neighbours_2d | ( | void | ) |
Allocate a N_gradient_neighbours_2d structure.
This structure contains all neighbour gradients in all directions of one cell in a 2d raster layer
- Returns
- N_gradient_neighbours_2d *
Definition at line 577 of file n_gradient.c.
References G_calloc, N_alloc_gradient_neighbours_x(), N_alloc_gradient_neighbours_y(), N_gradient_neighbours_2d::x, and N_gradient_neighbours_2d::y.
Referenced by N_create_gradient_neighbours_2d().
◆ N_alloc_gradient_neighbours_3d()
| N_gradient_neighbours_3d* N_alloc_gradient_neighbours_3d | ( | void | ) |
Allocate a N_gradient_neighbours_3d structure.
This structure contains all neighbour gradients in all directions of one cell in a 3d raster layer
- Returns
- N_gradient_neighbours_3d *
Definition at line 752 of file n_gradient.c.
References G_calloc, N_alloc_gradient_neighbours_x(), N_alloc_gradient_neighbours_y(), N_alloc_gradient_neighbours_z(), N_gradient_neighbours_3d::xb, N_gradient_neighbours_3d::xc, N_gradient_neighbours_3d::xt, N_gradient_neighbours_3d::yb, N_gradient_neighbours_3d::yc, N_gradient_neighbours_3d::yt, N_gradient_neighbours_3d::zb, and N_gradient_neighbours_3d::zt.
Referenced by N_create_gradient_neighbours_3d().
◆ N_alloc_gradient_neighbours_x()
| N_gradient_neighbours_x* N_alloc_gradient_neighbours_x | ( | void | ) |
Allocate a N_gradient_neighbours_x structure.
This structure contains all neighbour gradients in x direction of one cell
- Returns
- N_gradient_neighbours_x *
Definition at line 289 of file n_gradient.c.
References G_calloc.
Referenced by N_alloc_gradient_neighbours_2d(), N_alloc_gradient_neighbours_3d(), and N_create_gradient_neighbours_x().
◆ N_alloc_gradient_neighbours_y()
| N_gradient_neighbours_y* N_alloc_gradient_neighbours_y | ( | void | ) |
Allocate a N_gradient_neighbours_y structure.
This structure contains all neighbour gradients in y direction of one cell
- Returns
- N_gradient_neighbours_y *
Definition at line 381 of file n_gradient.c.
References G_calloc.
Referenced by N_alloc_gradient_neighbours_2d(), N_alloc_gradient_neighbours_3d(), and N_create_gradient_neighbours_y().
◆ N_alloc_gradient_neighbours_z()
| N_gradient_neighbours_z* N_alloc_gradient_neighbours_z | ( | void | ) |
Allocate a N_gradient_neighbours_z structure.
This structure contains all neighbour gradients in z direction of one cell
- Returns
- N_gradient_neighbours_z *
Definition at line 473 of file n_gradient.c.
References G_calloc.
Referenced by N_alloc_gradient_neighbours_3d(), and N_create_gradient_neighbours_z().
◆ N_copy_gradient_2d()
| int N_copy_gradient_2d | ( | N_gradient_2d * | source, |
| N_gradient_2d * | target | ||
| ) |
copy a N_gradient_2d structure
- Parameters
-
source - the source N_gradient_2d struct target - the target N_gradient_2d struct
- Returns
- int - 1 success, 0 failure while copying
Definition at line 83 of file n_gradient.c.
References N_gradient_2d::EC, G_debug(), N_gradient_2d::NC, N_gradient_2d::SC, and N_gradient_2d::WC.
◆ N_copy_gradient_3d()
| int N_copy_gradient_3d | ( | N_gradient_3d * | source, |
| N_gradient_3d * | target | ||
| ) |
copy a N_gradient_3d structure
- Parameters
-
source - the source N_gradient_3d struct target - the target N_gradient_3d struct
- Returns
- int - 1 success, 0 failure while copying
Definition at line 211 of file n_gradient.c.
References N_gradient_3d::BC, N_gradient_3d::EC, G_debug(), N_gradient_3d::NC, N_gradient_3d::SC, N_gradient_3d::TC, and N_gradient_3d::WC.
◆ N_copy_gradient_field_2d()
| int N_copy_gradient_field_2d | ( | N_gradient_field_2d * | source, |
| N_gradient_field_2d * | target | ||
| ) |
Copy N_gradient_field_2d structure from source to target.
- Parameters
-
source - the source N_gradient_field_2d struct target - the target N_gradient_field_2d struct
- Returns
- int - 1 success, 0 failure while copying
Definition at line 941 of file n_gradient.c.
References G_debug(), N_copy_array_2d(), N_gradient_field_2d::x_array, and N_gradient_field_2d::y_array.
◆ N_copy_gradient_field_3d()
| int N_copy_gradient_field_3d | ( | N_gradient_field_3d * | source, |
| N_gradient_field_3d * | target | ||
| ) |
Copy N_gradient_field_3d structure from source to target.
- Parameters
-
source - the source N_gradient_field_3d struct target - the target N_gradient_field_3d struct
- Returns
- int - 1 success, 0 failure while copying
Definition at line 1041 of file n_gradient.c.
References G_debug(), N_copy_array_3d(), N_gradient_field_3d::x_array, N_gradient_field_3d::y_array, and N_gradient_field_3d::z_array.
◆ N_copy_gradient_neighbours_2d()
| int N_copy_gradient_neighbours_2d | ( | N_gradient_neighbours_2d * | source, |
| N_gradient_neighbours_2d * | target | ||
| ) |
copy a N_gradient_neighbours_2d structure
- Parameters
-
source - the source N_gradient_neighbours_2d struct target - the target N_gradient_neighbours_2d struct
- Returns
- int - 1 success, 0 failure while copying
Definition at line 650 of file n_gradient.c.
References G_debug(), N_copy_gradient_neighbours_x(), N_copy_gradient_neighbours_y(), N_gradient_neighbours_2d::x, and N_gradient_neighbours_2d::y.
Referenced by N_get_gradient_neighbours_2d().
◆ N_copy_gradient_neighbours_3d()
| int N_copy_gradient_neighbours_3d | ( | N_gradient_neighbours_3d * | source, |
| N_gradient_neighbours_3d * | target | ||
| ) |
copy a N_gradient_neighbours_3d structure
- Parameters
-
source - the source N_gradient_neighbours_3d struct target - the target N_gradient_neighbours_3d struct
- Returns
- int - 1 success, 0 failure while copying
Definition at line 852 of file n_gradient.c.
References G_debug(), N_copy_gradient_neighbours_x(), N_copy_gradient_neighbours_y(), N_copy_gradient_neighbours_z(), N_gradient_neighbours_3d::xb, N_gradient_neighbours_3d::xc, N_gradient_neighbours_3d::xt, N_gradient_neighbours_3d::yb, N_gradient_neighbours_3d::yc, N_gradient_neighbours_3d::yt, N_gradient_neighbours_3d::zb, and N_gradient_neighbours_3d::zt.
◆ N_copy_gradient_neighbours_x()
| int N_copy_gradient_neighbours_x | ( | N_gradient_neighbours_x * | source, |
| N_gradient_neighbours_x * | target | ||
| ) |
copy a N_gradient_neighbours_x structure
- Parameters
-
source - the source N_gradient_neighbours_x struct target - the target N_gradient_neighbours_x struct
- Returns
- int - 1 success, 0 failure while copying
Definition at line 355 of file n_gradient.c.
References N_gradient_neighbours_x::EC, G_debug(), N_gradient_neighbours_x::NEN, N_gradient_neighbours_x::NWN, N_gradient_neighbours_x::SES, N_gradient_neighbours_x::SWS, and N_gradient_neighbours_x::WC.
Referenced by N_copy_gradient_neighbours_2d(), N_copy_gradient_neighbours_3d(), N_create_gradient_neighbours_2d(), and N_create_gradient_neighbours_3d().
◆ N_copy_gradient_neighbours_y()
| int N_copy_gradient_neighbours_y | ( | N_gradient_neighbours_y * | source, |
| N_gradient_neighbours_y * | target | ||
| ) |
copy a N_gradient_neighbours_y structure
- Parameters
-
source - the source N_gradient_neighbours_y struct target - the target N_gradient_neighbours_y struct
- Returns
- int - 1 success, 0 failure while copying
Definition at line 447 of file n_gradient.c.
References G_debug(), N_gradient_neighbours_y::NC, N_gradient_neighbours_y::NEE, N_gradient_neighbours_y::NWW, N_gradient_neighbours_y::SC, N_gradient_neighbours_y::SEE, and N_gradient_neighbours_y::SWW.
Referenced by N_copy_gradient_neighbours_2d(), N_copy_gradient_neighbours_3d(), N_create_gradient_neighbours_2d(), and N_create_gradient_neighbours_3d().
◆ N_copy_gradient_neighbours_z()
| int N_copy_gradient_neighbours_z | ( | N_gradient_neighbours_z * | source, |
| N_gradient_neighbours_z * | target | ||
| ) |
copy a N_gradient_neighbours_z structure
- Parameters
-
source - the source N_gradient_neighbours_z struct target - the target N_gradient_neighbours_z struct
- Returns
- int - 1 success, 0 failure while copying
Definition at line 547 of file n_gradient.c.
References N_gradient_neighbours_z::CZ, N_gradient_neighbours_z::EZ, G_debug(), N_gradient_neighbours_z::NEZ, N_gradient_neighbours_z::NWZ, N_gradient_neighbours_z::NZ, N_gradient_neighbours_z::SEZ, N_gradient_neighbours_z::SWZ, N_gradient_neighbours_z::SZ, and N_gradient_neighbours_z::WZ.
Referenced by N_copy_gradient_neighbours_3d(), and N_create_gradient_neighbours_3d().
◆ N_create_gradient_2d()
| N_gradient_2d* N_create_gradient_2d | ( | double | NC, |
| double | SC, | ||
| double | WC, | ||
| double | EC | ||
| ) |
allocate and initialize a N_gradient_2d structure
- Parameters
-
NC double - the gradient between northern and center cell SC double - the gradient between southern and center cell WC double - the gradient between western and center cell EC double - the gradient between eastern and center cell
- Returns
- N_gradient_2d *
Definition at line 59 of file n_gradient.c.
References N_gradient_2d::EC, G_debug(), N_alloc_gradient_2d(), N_gradient_2d::NC, N_gradient_2d::SC, and N_gradient_2d::WC.
Referenced by N_get_gradient_2d().
◆ N_create_gradient_3d()
| N_gradient_3d* N_create_gradient_3d | ( | double | NC, |
| double | SC, | ||
| double | WC, | ||
| double | EC, | ||
| double | TC, | ||
| double | BC | ||
| ) |
allocate and initialize a N_gradient_3d structure
- Parameters
-
NC double - the gradient between northern and center cell SC double - the gradient between southern and center cell WC double - the gradient between western and center cell EC double - the gradient between eastern and center cell TC double - the gradient between top and center cell BC double - the gradient between bottom and center cell
- Returns
- N_gradient_3d *
Definition at line 184 of file n_gradient.c.
References N_gradient_3d::BC, N_gradient_3d::EC, G_debug(), N_alloc_gradient_3d(), N_gradient_3d::NC, N_gradient_3d::SC, N_gradient_3d::TC, and N_gradient_3d::WC.
◆ N_create_gradient_neighbours_2d()
| N_gradient_neighbours_2d* N_create_gradient_neighbours_2d | ( | N_gradient_neighbours_x * | x, |
| N_gradient_neighbours_y * | y | ||
| ) |
Allocate and initialize a N_gradient_neighbours_2d structure.
The parameter N_gradient_neighbours x and y are copied into the new allocated structure and can be deleted after the initializing
- Returns
- N_gradient_neighbours_2d * – if failure NULL is returned
Definition at line 618 of file n_gradient.c.
References G_debug(), N_alloc_gradient_neighbours_2d(), N_copy_gradient_neighbours_x(), N_copy_gradient_neighbours_y(), N_free_gradient_neighbours_2d(), NULL, x, N_gradient_neighbours_2d::x, and N_gradient_neighbours_2d::y.
Referenced by N_get_gradient_neighbours_2d().
◆ N_create_gradient_neighbours_3d()
| N_gradient_neighbours_3d* N_create_gradient_neighbours_3d | ( | N_gradient_neighbours_x * | xt, |
| N_gradient_neighbours_x * | xc, | ||
| N_gradient_neighbours_x * | xb, | ||
| N_gradient_neighbours_y * | yt, | ||
| N_gradient_neighbours_y * | yc, | ||
| N_gradient_neighbours_y * | yb, | ||
| N_gradient_neighbours_z * | zt, | ||
| N_gradient_neighbours_z * | zb | ||
| ) |
Allocate and initialize a N_gradient_neighbours_3d structure.
The parameter N_gradient_neighbours x(tcb) and y(tcb) and z(tb) are copied into the new allocated structure and can be deleted after the initializing
- Returns
- N_gradient_neighbours_3d * – if failure NULL is returned
Definition at line 806 of file n_gradient.c.
References G_debug(), N_alloc_gradient_neighbours_3d(), N_copy_gradient_neighbours_x(), N_copy_gradient_neighbours_y(), N_copy_gradient_neighbours_z(), NULL, N_gradient_neighbours_3d::xb, N_gradient_neighbours_3d::xc, N_gradient_neighbours_3d::xt, N_gradient_neighbours_3d::yb, N_gradient_neighbours_3d::yc, N_gradient_neighbours_3d::yt, N_gradient_neighbours_3d::zb, and N_gradient_neighbours_3d::zt.
◆ N_create_gradient_neighbours_x()
| N_gradient_neighbours_x* N_create_gradient_neighbours_x | ( | double | NWN, |
| double | NEN, | ||
| double | WC, | ||
| double | EC, | ||
| double | SWS, | ||
| double | SES | ||
| ) |
Allocate and initialize a N_gradient_neighbours_x structure.
- Parameters
-
NWN double - the gradient between north-west and northern cell NEN double - the gradient between north-east and northern cell WC double - the gradient between western and center cell EC double - the gradient between eastern and center cell SWS double - the gradient between south-west and southern cell SES double - the gradient between south-east and southern cell
- Returns
- N_gradient_neighbours_x *
Definition at line 326 of file n_gradient.c.
References N_gradient_neighbours_x::EC, G_debug(), N_alloc_gradient_neighbours_x(), N_gradient_neighbours_x::NEN, N_gradient_neighbours_x::NWN, N_gradient_neighbours_x::SES, N_gradient_neighbours_x::SWS, and N_gradient_neighbours_x::WC.
Referenced by N_get_gradient_neighbours_2d().
◆ N_create_gradient_neighbours_y()
| N_gradient_neighbours_y* N_create_gradient_neighbours_y | ( | double | NWW, |
| double | NEE, | ||
| double | NC, | ||
| double | SC, | ||
| double | SWW, | ||
| double | SEE | ||
| ) |
Allocate and initialize a N_gradient_neighbours_y structure.
- Parameters
-
NWW double - the gradient between north-west and western cell NEE double - the gradient between north-east and eastern cell NC double - the gradient between northern and center cell SC double - the gradient between southern and center cell SWW double - the gradient between south-west and western cell SEE double - the gradient between south-east and eastern cell
- Returns
- N_gradient_neighbours_y *
Definition at line 418 of file n_gradient.c.
References G_debug(), N_alloc_gradient_neighbours_y(), N_gradient_neighbours_y::NC, N_gradient_neighbours_y::NEE, N_gradient_neighbours_y::NWW, N_gradient_neighbours_y::SC, N_gradient_neighbours_y::SEE, and N_gradient_neighbours_y::SWW.
Referenced by N_get_gradient_neighbours_2d().
◆ N_create_gradient_neighbours_z()
| N_gradient_neighbours_z* N_create_gradient_neighbours_z | ( | double | NWZ, |
| double | NZ, | ||
| double | NEZ, | ||
| double | WZ, | ||
| double | CZ, | ||
| double | EZ, | ||
| double | SWZ, | ||
| double | SZ, | ||
| double | SEZ | ||
| ) |
Allocate and initialize a N_gradient_neighbours_z structure.
- Parameters
-
NWZ double - the gradient between upper and lower north-western cells NZ double - the gradient between upper and lower northern cells NEZ double - the gradient between upper and lower north-eastern cells WZ double - the gradient between upper and lower western cells CZ double - the gradient between upper and lower center cells EZ double - the gradient between upper and lower eastern cells SWZ double - the gradient between upper and lower south-western cells SZ double - the gradient between upper and lower southern cells SEZ double - the gradient between upper and lower south-eastern cells
- Returns
- N_gradient_neighbours_z *
Definition at line 513 of file n_gradient.c.
References N_gradient_neighbours_z::CZ, N_gradient_neighbours_z::EZ, G_debug(), N_alloc_gradient_neighbours_z(), N_gradient_neighbours_z::NEZ, N_gradient_neighbours_z::NWZ, N_gradient_neighbours_z::NZ, N_gradient_neighbours_z::SEZ, N_gradient_neighbours_z::SWZ, N_gradient_neighbours_z::SZ, and N_gradient_neighbours_z::WZ.
◆ N_free_gradient_2d()
| void N_free_gradient_2d | ( | N_gradient_2d * | grad | ) |
◆ N_free_gradient_3d()
| void N_free_gradient_3d | ( | N_gradient_3d * | grad | ) |
◆ N_free_gradient_field_2d()
| void N_free_gradient_field_2d | ( | N_gradient_field_2d * | field | ) |
Free's a N_gradient_neighbours_2d structure.
- Returns
- void
Definition at line 920 of file n_gradient.c.
References G_free(), N_free_array_2d(), NULL, N_gradient_field_2d::x_array, and N_gradient_field_2d::y_array.
◆ N_free_gradient_field_3d()
| void N_free_gradient_field_3d | ( | N_gradient_field_3d * | field | ) |
Free's a N_gradient_neighbours_3d structure.
- Returns
- void
Definition at line 1019 of file n_gradient.c.
References G_free(), N_free_array_3d(), NULL, N_gradient_field_3d::x_array, N_gradient_field_3d::y_array, and N_gradient_field_3d::z_array.
◆ N_free_gradient_neighbours_2d()
| void N_free_gradient_neighbours_2d | ( | N_gradient_neighbours_2d * | grad | ) |
Free's a N_gradient_neighbours_2d structure.
- Returns
- void
Definition at line 596 of file n_gradient.c.
References G_free(), N_free_gradient_neighbours_x(), N_free_gradient_neighbours_y(), NULL, N_gradient_neighbours_2d::x, and N_gradient_neighbours_2d::y.
Referenced by N_create_gradient_neighbours_2d(), and N_get_gradient_neighbours_2d().
◆ N_free_gradient_neighbours_3d()
| void N_free_gradient_neighbours_3d | ( | N_gradient_neighbours_3d * | grad | ) |
Free's a N_gradient_neighbours_3d structure.
- Returns
- void
Definition at line 777 of file n_gradient.c.
References G_free(), N_free_gradient_neighbours_x(), N_free_gradient_neighbours_y(), N_free_gradient_neighbours_z(), NULL, N_gradient_neighbours_3d::xb, N_gradient_neighbours_3d::xc, N_gradient_neighbours_3d::xt, N_gradient_neighbours_3d::yb, N_gradient_neighbours_3d::yc, N_gradient_neighbours_3d::yt, N_gradient_neighbours_3d::zb, and N_gradient_neighbours_3d::zt.
◆ N_free_gradient_neighbours_x()
| void N_free_gradient_neighbours_x | ( | N_gradient_neighbours_x * | grad | ) |
Free's a N_gradient_neighbours_x structure.
- Returns
- void
Definition at line 305 of file n_gradient.c.
References G_free(), and NULL.
Referenced by N_free_gradient_neighbours_2d(), N_free_gradient_neighbours_3d(), and N_get_gradient_neighbours_2d().
◆ N_free_gradient_neighbours_y()
| void N_free_gradient_neighbours_y | ( | N_gradient_neighbours_y * | grad | ) |
Free's a N_gradient_neighbours_y structure.
- Returns
- void
Definition at line 397 of file n_gradient.c.
References G_free(), and NULL.
Referenced by N_free_gradient_neighbours_2d(), N_free_gradient_neighbours_3d(), and N_get_gradient_neighbours_2d().
◆ N_free_gradient_neighbours_z()
| void N_free_gradient_neighbours_z | ( | N_gradient_neighbours_z * | grad | ) |
Free's a N_gradient_neighbours_z structure.
- Returns
- void
Definition at line 489 of file n_gradient.c.
References G_free(), and NULL.
Referenced by N_free_gradient_neighbours_3d().
◆ N_get_gradient_2d()
| N_gradient_2d* N_get_gradient_2d | ( | N_gradient_field_2d * | field, |
| N_gradient_2d * | gradient, | ||
| int | col, | ||
| int | row | ||
| ) |
Return a N_gradient_2d structure calculated from the input gradient field at position [row][col].
This function returns the gradient of a cell at position [row][col] from the input gradient field. Returned is a new structure of type N_gradient_2d.
- Parameters
-
field N_gradient_field_2d * - A two dimensional gradient field gradient N_gradient_2d * - the gradient structure which should be filled with data, if a NULL pointer is given, a new structure will be created col int row int
- Returns
- N_gradient_2d * - the new or filled gradient structure
Definition at line 114 of file n_gradient.c.
References N_gradient_2d::EC, G_debug(), N_create_gradient_2d(), N_get_array_2d_d_value(), N_gradient_2d::NC, N_gradient_2d::SC, N_gradient_2d::WC, N_gradient_field_2d::x_array, and N_gradient_field_2d::y_array.
Referenced by N_compute_gradient_field_components_2d().
◆ N_get_gradient_3d()
| N_gradient_3d* N_get_gradient_3d | ( | N_gradient_field_3d * | field, |
| N_gradient_3d * | gradient, | ||
| int | col, | ||
| int | row, | ||
| int | depth | ||
| ) |
Return a N_gradient_3d structure calculated from the input gradient field at position [depth][row][col].
This function returns the gradient of a 3d cell at position [depth][row][col] from the input gradient field. Returned is a new structure of type N_gradient_3d.
- Parameters
-
field N_gradient_field_3d * - A three dimensional gradient field gradient N_gradient_3d * - an existing gradient structure or a NULL pointer, if a NULL pointer is providet a new structure will be returned col int row int depth int
- Returns
- N_gradient_3d *
Definition at line 246 of file n_gradient.c.
Referenced by N_compute_gradient_field_components_3d().
◆ N_get_gradient_neighbours_2d()
| N_gradient_neighbours_2d* N_get_gradient_neighbours_2d | ( | N_gradient_field_2d * | field, |
| N_gradient_neighbours_2d * | gradient, | ||
| int | col, | ||
| int | row | ||
| ) |
Return a N_gradient_neighbours_2d structure calculated from the input gradient field at position [row][col].
This function returns the gradient neighbours in x and y dierection of a cell at position [row][col] from the input gradient field. Returned is a pointer to a structure of type N_gradient_neighbours_2d.
- Parameters
-
field N_gradient_field_2d * - A two dimensional gradient field gradient N_gradient_neighbours_2d * - the gradient structure which should be filled with data, if a NULL pointer is given, a new structure will be created col int row int
- Returns
- N_gradient_neighbours_2d * - the new or filled gradient structure
Definition at line 689 of file n_gradient.c.
References G_debug(), N_copy_gradient_neighbours_2d(), N_create_gradient_neighbours_2d(), N_create_gradient_neighbours_x(), N_create_gradient_neighbours_y(), N_free_gradient_neighbours_2d(), N_free_gradient_neighbours_x(), N_free_gradient_neighbours_y(), N_get_array_2d_d_value(), NULL, N_gradient_field_2d::x_array, and N_gradient_field_2d::y_array.
◆ N_print_gradient_field_2d_info()
| void N_print_gradient_field_2d_info | ( | N_gradient_field_2d * | field | ) |
Print gradient field information to stdout.
- Parameters
-
field N_gradient_2d_field *
- Returns
- void
Definition at line 961 of file n_gradient.c.
References N_gradient_field_2d::cols, N_gradient_field_2d::max, N_gradient_field_2d::mean, N_gradient_field_2d::min, N_print_array_2d_info(), N_gradient_field_2d::nonull, N_gradient_field_2d::rows, N_gradient_field_2d::sum, N_gradient_field_2d::x_array, and N_gradient_field_2d::y_array.
◆ N_print_gradient_field_3d_info()
| void N_print_gradient_field_3d_info | ( | N_gradient_field_3d * | field | ) |
Print gradient field information to stdout.
- Parameters
-
field N_gradient_3d_field *
- Returns
- void
Definition at line 1062 of file n_gradient.c.
References N_gradient_field_3d::cols, N_gradient_field_3d::depths, N_gradient_field_3d::max, N_gradient_field_3d::mean, N_gradient_field_3d::min, N_print_array_3d_info(), N_gradient_field_3d::nonull, N_gradient_field_3d::rows, N_gradient_field_3d::sum, N_gradient_field_3d::x_array, N_gradient_field_3d::y_array, and N_gradient_field_3d::z_array.
