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NeighborCode3D Class Reference | ![]() |
Encapsulation of direction management of neighbors for a 3D 6-neighborhood. More...
#include <vigra/voxelneighborhood.hxx>
Public Types | |
enum | Direction |
Static Public Member Functions | |
static Diff3D const & | behind () |
static Diff3D const & | bottom () |
static Direction | code (Diff3D const &diff) |
static Diff3D const & | diff (Direction code) |
static Diff3D const & | diff (int code) |
static int | diff (Direction code, int dim) |
static int | dX (Direction code) |
static int | dX (int code) |
static int | dY (Direction code) |
static int | dY (int code) |
static int | dZ (Direction code) |
static int | dZ (int code) |
static Diff3D const & | east () |
static Diff3D const & | front () |
static Diff3D const & | infront () |
static bool | isDiagonal (Direction) |
static Diff3D const & | left () |
static unsigned int | nearBorderDirectionCount (AtVolumeBorder b) |
static Direction | nearBorderDirections (AtVolumeBorder b, int index) |
static Direction | nearBorderDirectionsCausal (AtVolumeBorder b, int index) |
static Diff3D const & | north () |
static Diff3D const & | rear () |
static Diff3D const & | relativeDiff (Direction fromCode, Direction toCode) |
static Diff3D const & | relativeDiff (int fromCode, int toCode) |
static Diff3D const & | right () |
static Diff3D const & | south () |
static Diff3D const & | top () |
static Diff3D const & | west () |
Encapsulation of direction management of neighbors for a 3D 6-neighborhood.
enum Direction |
provides enumeration of all directions. DirectionCount may be used for portable loop termination conditions.
static unsigned int nearBorderDirectionCount | ( | AtVolumeBorder | b | ) | [static] |
The number of valid neighbors if the current center is at the volume border.
static Direction nearBorderDirections | ( | AtVolumeBorder | b, |
int | index | ||
) | [static] |
The valid direction codes when the center is at the volume border. index must be in the range 0...nearBorderDirectionCount(b)-1
.
static Direction nearBorderDirectionsCausal | ( | AtVolumeBorder | b, |
int | index | ||
) | [static] |
The valid direction three codes in anti causal direction (means: look back in scanline direction)when the center is at the volume border. Should be used with isAtVolumeBorderCausal to determine the Directions, as this avoids using of the nonesense border ids (e.g. 0,1,8,9...) of this table. index must be in the range 0...nearBorderDirectionCount(b)-1
.
transform direction code into corresponding Diff3D offset. (note: there is no bounds checking on the code you pass.)
Equivalent to diff(static_cast<Direction>(code))
. (note: there is no bounds checking on the code you pass.)
static Diff3D const& relativeDiff | ( | Direction | fromCode, |
Direction | toCode | ||
) | [static] |
Get the relative offset from one neighbor to the other. For example, relativeDiff(East, West) == multi_differencetype(-2,0,0)
. (note: there is no bounds checking on the code you pass.)
static Diff3D const& relativeDiff | ( | int | fromCode, |
int | toCode | ||
) | [static] |
Equivalent to relativeDiff(static_cast<Direction>(fromCode), static_cast<Direction>(toCode)). (note: there is no bounds checking on the code you pass.)
transform Diff3D offset into corresponding direction code. The code Direction::Error
will be returned if diff
is not in the 3DSix-Neighborhood.
static bool isDiagonal | ( | Direction | ) | [static] |
Check whether a code refers to a diagonal direction. Useful if you want to abstract the differences between 6- and 26-neighborhood. Always false
for 6-neighborhood.
© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de) |
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