Geometry Class Reference
[MR Parameters (odinpara library)]
Geometry Settings.
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#include <geometry.h>
Public Member Functions | |
| Geometry (const STD_string &label="unnamedGeometry") | |
| Geometry (const Geometry &ia) | |
| Geometry & | operator= (const Geometry &ia) |
| Geometry & | set_Mode (geometryMode mode) |
| geometryMode | get_Mode () const |
| Geometry & | set_FOV (direction dir, double fov) |
| double | get_FOV (direction dir) const |
| Geometry & | set_offset (direction dir, double offset) |
| double | get_offset (direction dir) const |
| Geometry & | set_nSlices (unsigned int nslices) |
| unsigned int | get_nSlices () const |
| Geometry & | set_sliceThickness (double thick) |
| Geometry & | set_sliceDistance (double dist) |
| double | get_sliceDistance () const |
| dvector | get_readVector () const |
| dvector | get_phaseVector () const |
| dvector | get_sliceVector () const |
| dvector | get_sliceOffsetVector () const |
| double | get_sliceThickness () const |
| darray | get_cornerPoints (const Geometry &background, unsigned int backgrslice) const |
| Geometry & | set_orientation (sliceOrientation orientation) |
| sliceOrientation | get_orientation () const |
| void | get_orientation (double &heightAng, double &azimutAng, double &inplaneAng, bool &revSlice) const |
| Geometry & | set_orientation (double heightAng, double azimutAng, double inplaneAng, bool revSlice=false) |
| Geometry & | set_orientation_and_offset (const dvector &readvec, const dvector &phasevec, const dvector &slicevec, const dvector ¢ervec) |
| dvector | get_center () const |
| RotMatrix | get_gradrotmatrix (bool transpose=false) const |
| dvector | transform (const dvector &rpsvec, bool inverse=false) const |
| Geometry & | transpose_inplane (bool reverse_read=false, bool reverse_phase=false) |
| Geometry & | reset () |
| Geometry & | update () |
Detailed Description
Geometry Settings.Depending on the selected geometryMode, this class describes a pack of parallel and congruent slices, or a 3D volume, .i.e. a voxel.
The patients x,y,z coordinate system used for the gradients is as follows: If standing in front of the magnet with the feet of the patient pointing towards you, the axes are oriented
- x: from right to left (in the final image left/right will then have the correct polarity)
- y: from bottom to top (floor to ceiling)
- z: pointing away from you to the patients head
The three orientation angles 'heightAngle', 'azimutAngle', and 'inplaneAngle' (in degree) describe the orientation of the slicepack/voxel relative to the x/y/z-coordinate system of the gradients. If all these angles are zero, the read/phase/slice-system of the slicepack/voxel is the same as the x/y/z-system of the gradients. Otherwise, the system is rotated by the following angles (in the given order):
- azimutAngle: Anti-clockwise rotation around y-axis.
- heightAngle: Angle between slice vector (which is perp. to the slice) and x-z-plane
- inplaneAngle: Clockwise rotation around slice vector.
Definition at line 179 of file geometry.h.
Constructor & Destructor Documentation
| Geometry::Geometry | ( | const STD_string & | label = "unnamedGeometry" |
) |
Constructs a Geometry with the given label
| Geometry::Geometry | ( | const Geometry & | ia | ) |
Copy constructor
Member Function Documentation
| Geometry& Geometry::set_Mode | ( | geometryMode | mode | ) |
Sets the geometry selection mode
| geometryMode Geometry::get_Mode | ( | ) | const [inline] |
Returns the geometry selection mode
Definition at line 206 of file geometry.h.
Sets the Field Of View in the specified direction
| double Geometry::get_FOV | ( | direction | dir | ) | const |
Returns the Field Of View in the specified direction
Sets the spatial offset in the specified direction
| double Geometry::get_offset | ( | direction | dir | ) | const |
Returns the spatial offset in the specified direction
| Geometry& Geometry::set_nSlices | ( | unsigned int | nslices | ) |
Sets the number of slices of the current slice pack
| unsigned int Geometry::get_nSlices | ( | ) | const [inline] |
Returns the number of slices of the current slice pack
Definition at line 237 of file geometry.h.
| Geometry& Geometry::set_sliceThickness | ( | double | thick | ) |
Sets the slice thickness of the current slice pack
| Geometry& Geometry::set_sliceDistance | ( | double | dist | ) |
Sets the slice interslice distance
| double Geometry::get_sliceDistance | ( | ) | const [inline] |
Returns the slice interslice distance
Definition at line 252 of file geometry.h.
| dvector Geometry::get_readVector | ( | ) | const |
Returns the normalised vector for the read direction in the laboratory system of reference
| dvector Geometry::get_phaseVector | ( | ) | const |
Returns the normalised vector for the phase direction in the laboratory system of reference
| dvector Geometry::get_sliceVector | ( | ) | const |
Returns the normalised vector for the slice direction in the laboratory system of reference
| dvector Geometry::get_sliceOffsetVector | ( | ) | const |
Returns the vector of spatial offsets in slice direction for the different slices of the slicepack.
| double Geometry::get_sliceThickness | ( | ) | const [inline] |
Returns the slice thickness for the slices
Definition at line 277 of file geometry.h.
Returns a 5-dimensional array that contains the corner points of the slices/voxels where indexing is as follows: (unsigned int slice,sliceBoundary boundary1,sliceBoundary boundary2,sliceBoundary boundary3, axis direction) with
- slice: The slice for the point
- boundary1: The boundary in the read direction
- boundary2: The boundary in the phase direction
- boundary3: The boundary in the slice direction, the size is 1 in slicepack mode
- direction: The x,y,z index
The points are transformed to slice 'backgrslice' the coordinate system of 'background'.
| Geometry& Geometry::set_orientation | ( | sliceOrientation | orientation | ) |
Set the angle parameters to match the specified anatomical slice orientation
| sliceOrientation Geometry::get_orientation | ( | ) | const |
Returns the major anatomical slice orientation
| void Geometry::get_orientation | ( | double & | heightAng, | |
| double & | azimutAng, | |||
| double & | inplaneAng, | |||
| bool & | revSlice | |||
| ) | const |
Returns the orientation of the slice, i.e. the three orientation angles 'heightAng', 'azimutAng' and 'inplaneAng'. 'revSlice' returns whether the slice direction (handness) is reversed.
| Geometry& Geometry::set_orientation | ( | double | heightAng, | |
| double | azimutAng, | |||
| double | inplaneAng, | |||
| bool | revSlice = false | |||
| ) |
Specifies the orientation of the slice pack by giving the three orientation angles 'heightAng', 'azimutAng' and 'inplaneAng'. Optionally, the slice direction can be reversed by setting 'revSlice' to true.
| Geometry& Geometry::set_orientation_and_offset | ( | const dvector & | readvec, | |
| const dvector & | phasevec, | |||
| const dvector & | slicevec, | |||
| const dvector & | centervec | |||
| ) |
Specifies the orientation of the slicepack/voxel by giving the three vectors 'readvec', 'phasevec', and 'slicevec' which point in read, phase, and slice direction. The vector 'offset' must contain the spatial offset of the center of the slicepack/voxel.
| dvector Geometry::get_center | ( | ) | const |
Returns a vector pointing to the center of the slicepack/voxel.
| RotMatrix Geometry::get_gradrotmatrix | ( | bool | transpose = false |
) | const |
Returns the rotation matrix to convert the gradient strengths in the sequence coordinate system (read,phase,slice) to the laboratory system (x,y,z). If 'transpose' is set to true, the transposed matrix is returned.
Coordinate transformation from sequence coordinate system (read,phase,slice) of slice 'slice' to laboratory system (x,y,z), or vice versa if 'inverse' is set to 'true'.
| Geometry& Geometry::transpose_inplane | ( | bool | reverse_read = false, |
|
| bool | reverse_phase = false | |||
| ) |
Transpose geometry in-plane, 'reverse_read' and 'reverse_phase' can be used to reverse read/phase direction before transposing.
| Geometry& Geometry::reset | ( | ) |
Resets the slicepacks geometry to its inintial state
| Geometry& Geometry::update | ( | ) |
Updates internal relations of the geometry parameters
The documentation for this class was generated from the following file:
