gtsam
3rdparty
Eigen
doc
examples
class_Block.cpp
Go to the documentation of this file.
1
#include <Eigen/Core>
2
#include <iostream>
3
using namespace
Eigen
;
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using namespace
std
;
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6
template
<
typename
Derived>
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Eigen::Block<Derived>
8
topLeftCorner
(
MatrixBase<Derived>
&
m
,
int
rows
,
int
cols
)
9
{
10
return
Eigen::Block<Derived>
(
m
.derived(), 0, 0,
rows
,
cols
);
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}
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template
<
typename
Derived>
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const
Eigen::Block<const Derived>
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topLeftCorner
(
const
MatrixBase<Derived>
&
m
,
int
rows
,
int
cols
)
16
{
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return
Eigen::Block<const Derived>
(
m
.derived(), 0, 0,
rows
,
cols
);
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}
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int
main
(
int
,
char
**)
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{
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Matrix4d
m
= Matrix4d::Identity();
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cout <<
topLeftCorner
(4*
m
, 2, 3) << endl;
// calls the const version
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topLeftCorner
(
m
, 2, 3) *= 5;
// calls the non-const version
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cout <<
"Now the matrix m is:"
<< endl <<
m
<< endl;
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return
0;
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}
Eigen
Namespace containing all symbols from the Eigen library.
Definition:
jet.h:637
Eigen::Block
Expression of a fixed-size or dynamic-size block.
Definition:
Block.h:103
rows
int rows
Definition:
Tutorial_commainit_02.cpp:1
topLeftCorner
Eigen::Block< Derived > topLeftCorner(MatrixBase< Derived > &m, int rows, int cols)
Definition:
class_Block.cpp:8
m
Matrix3f m
Definition:
AngleAxis_mimic_euler.cpp:1
main
int main(int, char **)
Definition:
class_Block.cpp:20
std
Definition:
BFloat16.h:88
Eigen::MatrixBase
Base class for all dense matrices, vectors, and expressions.
Definition:
MatrixBase.h:48
cols
int cols
Definition:
Tutorial_commainit_02.cpp:1
gtsam
Author(s):
autogenerated on Fri Nov 1 2024 03:32:06