mirror of
https://gitlab.com/libeigen/eigen.git
synced 2025-08-09 18:29:03 +08:00
final fixes and updates for alpha3
This commit is contained in:
parent
57d7b7d97b
commit
183bf54d27
@ -268,10 +268,13 @@ template<typename Scalar, typename Derived>
|
||||
Block<Derived> MatrixBase<Scalar, Derived>
|
||||
::corner(CornerType type, int cRows, int cCols)
|
||||
{
|
||||
if(type == TopLeft) return Block<Derived>(ref(), 0, 0, cRows, cCols);
|
||||
else if(type == TopRight) return Block<Derived>(ref(), 0, cols() - cCols, cRows, cCols);
|
||||
else if(type == BottomLeft) return Block<Derived>(ref(), rows() - cRows, 0, cRows, cCols);
|
||||
else if(type == BottomRight)
|
||||
if(type == TopLeft)
|
||||
return Block<Derived>(ref(), 0, 0, cRows, cCols);
|
||||
else if(type == TopRight)
|
||||
return Block<Derived>(ref(), 0, cols() - cCols, cRows, cCols);
|
||||
else if(type == BottomLeft)
|
||||
return Block<Derived>(ref(), rows() - cRows, 0, cRows, cCols);
|
||||
else
|
||||
return Block<Derived>(ref(), rows() - cRows, cols() - cCols, cRows, cCols);
|
||||
}
|
||||
|
||||
@ -280,10 +283,13 @@ template<typename Scalar, typename Derived>
|
||||
const Block<Derived> MatrixBase<Scalar, Derived>
|
||||
::corner(CornerType type, int cRows, int cCols) const
|
||||
{
|
||||
if(type == TopLeft) return Block<Derived>(ref(), 0, 0, cRows, cCols);
|
||||
else if(type == TopRight) return Block<Derived>(ref(), 0, cols() - cCols, cRows, cCols);
|
||||
else if(type == BottomLeft) return Block<Derived>(ref(), rows() - cRows, 0, cRows, cCols);
|
||||
else if(type == BottomRight)
|
||||
if(type == TopLeft)
|
||||
return Block<Derived>(ref(), 0, 0, cRows, cCols);
|
||||
else if(type == TopRight)
|
||||
return Block<Derived>(ref(), 0, cols() - cCols, cRows, cCols);
|
||||
else if(type == BottomLeft)
|
||||
return Block<Derived>(ref(), rows() - cRows, 0, cRows, cCols);
|
||||
else
|
||||
return Block<Derived>(ref(), rows() - cRows, cols() - cCols, cRows, cCols);
|
||||
}
|
||||
|
||||
|
@ -46,7 +46,7 @@
|
||||
* \include class_FixedBlock.cpp
|
||||
* Output: \verbinclude class_FixedBlock.out
|
||||
*
|
||||
* \sa MatrixBase::fixedBlock(int,int), MatrixBase::fixedBlock(int), class Block
|
||||
* \sa MatrixBase::fixedBlock(int,int), class Block
|
||||
*/
|
||||
template<typename MatrixType, int BlockRows, int BlockCols> class FixedBlock
|
||||
: public MatrixBase<typename MatrixType::Scalar,
|
||||
@ -107,7 +107,7 @@ template<typename MatrixType, int BlockRows, int BlockCols> class FixedBlock
|
||||
* Example: \include MatrixBase_fixedBlock_int_int.cpp
|
||||
* Output: \verbinclude MatrixBase_fixedBlock_int_int.out
|
||||
*
|
||||
* \sa class FixedBlock, fixedBlock(int), block(int,int,int,int)
|
||||
* \sa class FixedBlock, block(int,int,int,int)
|
||||
*/
|
||||
template<typename Scalar, typename Derived>
|
||||
template<int BlockRows, int BlockCols>
|
||||
|
@ -5,7 +5,7 @@
|
||||
#---------------------------------------------------------------------------
|
||||
DOXYFILE_ENCODING = UTF-8
|
||||
PROJECT_NAME = Eigen
|
||||
PROJECT_NUMBER = 2.0-alpha2
|
||||
PROJECT_NUMBER = 2.0-alpha3
|
||||
OUTPUT_DIRECTORY = ${CMAKE_BINARY_DIR}/doc
|
||||
CREATE_SUBDIRS = NO
|
||||
OUTPUT_LANGUAGE = English
|
||||
|
@ -42,7 +42,11 @@ Here are general features of Eigen and more specific features of the Core module
|
||||
\code matrix.row(i) += factor * matrix.row(j); \endcode</li>
|
||||
<li>Both fixed-size and dynamic-size objects are supported, with uniform API,
|
||||
in a way that allows Eigen to make
|
||||
all usual optimizations in the case of fixed size, such as loop unrolling.</li>
|
||||
all usual optimizations in the case of fixed size, such as loop unrolling. Moreover
|
||||
special care is used to ensure that the fixed-size types never cause dynamic memory
|
||||
allocations. Even when the dimensions of an expression at not known at compile-time,
|
||||
if a fixed bound is known (e.g. when taking a block in a fixed-size matrix) then
|
||||
Eigen uses it to allocate a static array instead of a dynamic one.</li>
|
||||
<li>Both column-vectors and row-vectors are supported, as special cases of matrices.</li>
|
||||
<li>The following scalar types are supported and well tested: \c int, \c float, \c double,
|
||||
\c std::complex<float>, \c std::complex<double>. </li>
|
||||
@ -69,7 +73,7 @@ If you want to stay informed of Eigen news and releases, please subscribe to our
|
||||
|
||||
<a name="download"></a>
|
||||
<h2>Download</h2>
|
||||
The source code of the latest release is here: <a href="http://download.tuxfamily.org/eigen/eigen-2.0-alpha2.tar.gz">eigen-2.0-alpha2.tar.gz</a><br/>
|
||||
The source code of the latest release is here: <a href="http://download.tuxfamily.org/eigen/eigen-2.0-alpha3.tar.gz">eigen-2.0-alpha3.tar.gz</a><br/>
|
||||
|
||||
Alternatively, you can checkout the development tree by anonymous svn, by doing:
|
||||
<pre>svn co svn://anonsvn.kde.org/home/kde/branches/work/eigen2</pre>
|
||||
|
@ -3,24 +3,24 @@ USING_PART_OF_NAMESPACE_EIGEN
|
||||
using namespace std;
|
||||
|
||||
template<typename Scalar, typename Derived>
|
||||
Eigen::FixedBlock<Derived, 2, 2>
|
||||
topLeft2x2Corner(MatrixBase<Scalar, Derived>& m)
|
||||
Eigen::Block<Derived>
|
||||
topLeftCorner(MatrixBase<Scalar, Derived>& m, int rows, int cols)
|
||||
{
|
||||
return Eigen::FixedBlock<Derived, 2, 2>(m.ref(), 0, 0);
|
||||
return Eigen::Block<Derived>(m.ref(), 0, 0, rows, cols);
|
||||
}
|
||||
|
||||
template<typename Scalar, typename Derived>
|
||||
const Eigen::FixedBlock<Derived, 2, 2>
|
||||
topLeft2x2Corner(const MatrixBase<Scalar, Derived>& m)
|
||||
const Eigen::Block<Derived>
|
||||
topLeftCorner(const MatrixBase<Scalar, Derived>& m, int rows, int cols)
|
||||
{
|
||||
return Eigen::FixedBlock<Derived, 2, 2>(m.ref(), 0, 0);
|
||||
return Eigen::Block<Derived>(m.ref(), 0, 0, rows, cols);
|
||||
}
|
||||
|
||||
int main(int, char**)
|
||||
{
|
||||
Matrix3d m = Matrix3d::identity();
|
||||
cout << topLeft2x2Corner(4*m) << endl; // calls the const version
|
||||
topLeft2x2Corner(m) *= 2; // calls the non-const version
|
||||
Matrix4d m = Matrix4d::identity();
|
||||
cout << topLeftCorner(4*m, 2, 3) << endl; // calls the const version
|
||||
topLeftCorner(m, 2, 3) *= 5; // calls the non-const version
|
||||
cout << "Now the matrix m is:" << endl << m << endl;
|
||||
return 0;
|
||||
}
|
||||
|
@ -1,26 +0,0 @@
|
||||
#include <Eigen/Core>
|
||||
USING_PART_OF_NAMESPACE_EIGEN
|
||||
using namespace std;
|
||||
|
||||
template<typename Scalar, typename Derived>
|
||||
Eigen::Block<Derived>
|
||||
topLeftCorner(MatrixBase<Scalar, Derived>& m, int rows, int cols)
|
||||
{
|
||||
return Eigen::Block<Derived>(m.ref(), 0, 0, rows, cols);
|
||||
}
|
||||
|
||||
template<typename Scalar, typename Derived>
|
||||
const Eigen::Block<Derived>
|
||||
topLeftCorner(const MatrixBase<Scalar, Derived>& m, int rows, int cols)
|
||||
{
|
||||
return Eigen::Block<Derived>(m.ref(), 0, 0, rows, cols);
|
||||
}
|
||||
|
||||
int main(int, char**)
|
||||
{
|
||||
Matrix4d m = Matrix4d::identity();
|
||||
cout << topLeftCorner(4*m, 2, 3) << endl; // calls the const version
|
||||
topLeftCorner(m, 2, 3) *= 5; // calls the non-const version
|
||||
cout << "Now the matrix m is:" << endl << m << endl;
|
||||
return 0;
|
||||
}
|
26
doc/examples/class_FixedBlock.cpp
Normal file
26
doc/examples/class_FixedBlock.cpp
Normal file
@ -0,0 +1,26 @@
|
||||
#include <Eigen/Core>
|
||||
USING_PART_OF_NAMESPACE_EIGEN
|
||||
using namespace std;
|
||||
|
||||
template<typename Scalar, typename Derived>
|
||||
Eigen::FixedBlock<Derived, 2, 2>
|
||||
topLeft2x2Corner(MatrixBase<Scalar, Derived>& m)
|
||||
{
|
||||
return Eigen::FixedBlock<Derived, 2, 2>(m.ref(), 0, 0);
|
||||
}
|
||||
|
||||
template<typename Scalar, typename Derived>
|
||||
const Eigen::FixedBlock<Derived, 2, 2>
|
||||
topLeft2x2Corner(const MatrixBase<Scalar, Derived>& m)
|
||||
{
|
||||
return Eigen::FixedBlock<Derived, 2, 2>(m.ref(), 0, 0);
|
||||
}
|
||||
|
||||
int main(int, char**)
|
||||
{
|
||||
Matrix3d m = Matrix3d::identity();
|
||||
cout << topLeft2x2Corner(4*m) << endl; // calls the const version
|
||||
topLeft2x2Corner(m) *= 2; // calls the non-const version
|
||||
cout << "Now the matrix m is:" << endl << m << endl;
|
||||
return 0;
|
||||
}
|
Loading…
x
Reference in New Issue
Block a user