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[math][GenVector] Add access operator for Rotation3D #18480

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Merged
merged 2 commits into from
Apr 28, 2025
Merged

[math][GenVector] Add access operator for Rotation3D #18480

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7d0a363
[GenVector] Add access operator for Rotation3D
mdessole Apr 23, 2025
f257a6e
[GenVector] Add parameters in documentation
mdessole Apr 28, 2025
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15 changes: 15 additions & 0 deletions math/genvector/inc/Math/GenVector/Rotation3D.h
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,7 @@
#include "Math/GenVector/RotationYfwd.h"
#include "Math/GenVector/RotationZfwd.h"

#include "Math/GenVector/GenVector_exception.h"

#include <algorithm>
#include <cassert>
Expand Down Expand Up @@ -345,6 +346,20 @@ class Rotation3D {

// =========== operations ==============

/**
Access operator, used to have direct access to rotation matrix's entries
\param i row index in {0,1,2}
\param j column index in {0,1,2}
*/
Scalar operator()(size_t i, size_t j) const
{
if (i < 3 && j < 3)
return fM[i + 3 * j];
else
GenVector::Throw("Rotation3D::operator(size_t i, size_t j):\n"
" indices i and j must range in {0,1,2}");
return 0.0;
}

/**
Rotation operation on a displacement vector in any coordinate system
Expand Down
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