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matrixInterpolation.h
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1 /*=========================================================================
2 This file is part of CustusX, an Image Guided Therapy Application.
3 
4 Copyright (c) 2008-2014, SINTEF Department of Medical Technology
5 All rights reserved.
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7 Redistribution and use in source and binary forms, with or without
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31 =========================================================================*/
32 #ifndef MATRIXINTERPOLATION_H_
33 #define MATRIXINTERPOLATION_H_
34 
35 #include "org_custusx_usreconstruction_Export.h"
36 
37 #include <vector>
38 #include "vnl/vnl_matrix.h"
39 #include "vnl/vnl_vector.h"
40 typedef vnl_matrix<double> vnl_matrix_double;
41 
43 // Suppose that T(t) is a time-variant 4-by-4 transformation matrix
44 // whos values at certain points, given in the vector DataPoints, are
45 // given in the vector DataValues. This operation, then, interpolates
46 // to find the values of T at the intermediate points given in the
47 // vector InterpolationPoints.
48 //
49 // The interpolated values are found in two different ways depending
50 // on the value of the InterpolationMethod string:
51 // 1. InterpolationMethod == "closest point": In this case, the
52 // value at a given point is set to the value at the nearest
53 // neighboring point with a known value.
54 // 2. InterpolationMethod == "linear": In this case, the rotation
55 // part of the transformation matrix is found using the slerp
56 // (spherical linear interpolation), while the translation part
57 // is found using ordinary linear interpolation.
58 //
59 // Trondheim, 12.01.09.
60 // Lars Eirik B� <larseirik.bo@sintef.no>, SINTEF Technology and Society.
61 cxPluginUSReconstruction_EXPORT std::vector<vnl_matrix_double> matrixInterpolation(
62  vnl_vector<double> DataPoints,
63  std::vector<vnl_matrix_double> DataValues,
64  vnl_vector<double> InterpolationPoints,
65  std::string InterpolationMethod );
66 
67 
68 #endif /* MATRIXINTERPOLATION_H_ */
vnl_matrix< double > vnl_matrix_double
cxPluginUSReconstruction_EXPORT std::vector< vnl_matrix_double > matrixInterpolation(vnl_vector< double > DataPoints, std::vector< vnl_matrix_double > DataValues, vnl_vector< double > InterpolationPoints, std::string InterpolationMethod)
Operation: Interpolate transformation matrices.