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Author SHA1 Message Date
Gael Guennebaud
22507fa645 Sparse module: refactoring of the cholesky factorization, 
now the backends are well separated from the default impl, etc.
 2008-10-05 20:19:47 +00:00
Gael Guennebaud
b8fc1edb2c Sparse module: enable support for incomplete cholesky factorization in CHOLMOD backend. 2008-10-05 13:45:43 +00:00
Gael Guennebaud
3c155ab073 Sparse module: removed some extra copies using markAsRValue() 2008-10-05 13:39:49 +00:00
Gael Guennebaud
b730c6f57d Sparse module: add experimental support for TAUCS and CHOLMOD with: 
* bidirectionnal mapping
 * full cholesky factorization
 2008-10-05 13:38:38 +00:00
Gael Guennebaud
a930dfb229 extend sparse unit tests with transpose and matrix product 2008-10-04 14:25:00 +00:00
Gael Guennebaud
98d3c0a413 Cleaned a bit the sparse cholesky code 2008-10-04 14:24:15 +00:00
Gael Guennebaud
068ff3370d Sparse module: 
* several fixes (transpose, matrix product, etc...)
 * Added a basic cholesky factorization
 * Added a low level hybrid dense/sparse vector class
   to help writing code involving intensive read/write
   in a fixed vector. It is currently used to implement
   the matrix product itself as well as in the Cholesky
   factorization.
 2008-10-04 14:23:00 +00:00
Gael Guennebaud
1fc503e3ce add EigenSolver::eigenvectors() method for non symmetric matrices. 
However, for matrices larger than 5, it seems there is constantly a quite large error for a very
few coefficients. I don't what's going on, but that's certainely not due to numerical issues only.
(also note that the test with the pseudo eigenvectors fails the same way)
 2008-10-03 13:22:54 +00:00
Gael Guennebaud
d907cd4410 Fixes in Eigensolver: 
* eigenvectors => pseudoEigenvectors
 * added pseudoEigenvalueMatrix
 * clear the documentation
 * added respective unit test
Still missing: a proper eigenvectors() function.
 2008-10-01 10:17:08 +00:00
Benoit Jacob
618de17bf7 block(int,int)->segment 2008-09-24 20:35:07 +00:00
Gael Guennebaud
373331e3bf remove apidox_preprocessing script which is not used anymore 2008-09-16 13:26:46 +00:00
Gael Guennebaud
42e88b1724 resurrected root/Mainpage.dox, the directives are needed by kde's scripts 2008-09-16 12:53:03 +00:00
Gael Guennebaud
fb5b62fbac block => segment in the tutorial 2008-09-15 16:26:55 +00:00
Benoit Jacob
af991a6bdb small dox fixes 2008-09-15 16:19:48 +00:00
Benoit Jacob
247f2b0ffa * block() for vectors ---> segment() 
* documentation improvements, especially in quickstart guide
 2008-09-15 15:45:41 +00:00
Gael Guennebaud
0940ad7127 add normalization functions to Quaternion and fix compilation 
issue with custom types
 2008-09-14 12:21:22 +00:00
Gael Guennebaud
db030d4e28 * fix issues with "long double" type (useful to enforce the use of x87 registers) 
* extend the documentation on "extending Eigen"
 2008-09-14 11:59:10 +00:00
Gael Guennebaud
8473a77f2f move CommaInitializer out of MatrixBase and documment it (because of .finished()) 2008-09-13 18:51:51 +00:00
Gael Guennebaud
a62bd110a2 fix doc compilation 2008-09-13 10:44:23 +00:00
Gael Guennebaud
e5c50afed6 * Quaternion: added dot product and angularDistance functions. The latter is 
based on the former.
* opengl_demo: makes IcoSphere better (vertices are instanciated only once) and
               removed the generation of a big geometry for the fancy spheres...
 2008-09-11 11:19:34 +00:00
Gael Guennebaud
5e9ee8863e opengl demo, now working: 
- quaternion vs euler angles interpolation (though the Euler angle version looks a bit too bad)
 - navigation using either a mapping from 2D screen coordinates to 3D points on a sphere
   or the standard approach mapping mouse displacements as rotations around camera's axes.
 2008-09-09 23:17:14 +00:00
Gael Guennebaud
146c9e4494 various stuff in opengl demos such as a better model, 
stable trackball for the fly navigation mode, and started
to put some GUI elements...
 2008-09-09 18:50:45 +00:00
Gael Guennebaud
d3a70b7fac fix a numerical instability in Quaternion::slerp 2008-09-09 15:25:03 +00:00
Gael Guennebaud
703539110b add the missing templated version of block for sub-vectors 2008-09-09 09:30:23 +00:00
Gael Guennebaud
c41ceee750 2 typos 2008-09-08 17:08:27 +00:00
Gael Guennebaud
31c33b9ed4 started a small OpenGL demo making use of Eigen's geometry features 2008-09-07 23:15:11 +00:00
Gael Guennebaud
12e9de4abb fix stupid numerical stability issue in SVD::solve (though it is not yet as stable as LU with full pivoting) 2008-09-04 14:38:42 +00:00
Benoit Jacob
6add33e2c2 fix warning 2008-09-04 01:35:39 +00:00
Gael Guennebaud
52406aecad * Extend a bit ParametrizedLine and move it to a separate file, 
add unit-tests for it.
* remove "using namespace std" in test/main.h such that the compilation
  bug found today in SVD won't happen again.
 2008-09-03 22:35:45 +00:00
Gael Guennebaud
c29c7b0ea9 Fix bugs reported by Timothy Hunter: 
* CholeskyWithoutSqrt with 1x1 matrices
 * .part<Diagonal>()
Updated unit tests to handle these cases
 2008-09-03 20:52:26 +00:00
Gael Guennebaud
e14aa8c8aa Add coeff-wise comparisons to scalar operators. You can now write: 
mat.cwise() < 2
instead of:
   mat.cwise() < MatrixType::Constant(mat.rows(), mat.cols(), 2)
 2008-09-03 17:56:06 +00:00
Gael Guennebaud
59dc1da5bf Add a Select expression in the Array module which mimics a coeff-wise ?: operator. 
Example:
  mat = (mat.cwise().abs().cwise() < Ones()).select(0,mat);
replaces all small values by 0. (the scalar version is "s = abs(s)<1 ? 0 : s")
 2008-09-03 17:16:28 +00:00
Gael Guennebaud
622f2d5eae trivial compilation fix in SVD 2008-09-03 15:52:44 +00:00
Gael Guennebaud
3bbd1b3114 Bugfix regarding alignent in Assign.h (updated map unit test to detect this bug) 
Anyway: LinearVectorization+CompleteUnrolling actually uses the InnerVectorization
unrollers, so these two cases could be merged to a single one...
 2008-09-03 14:42:36 +00:00
Gael Guennebaud
75649551c2 compilation fixes with MSVC 2008-09-03 11:26:19 +00:00
Gael Guennebaud
2a2c305c4d not yet 2008-09-03 10:34:05 +00:00
Gael Guennebaud
f52d119b9c Solve a big issue with data alignment and dynamic allocation: 
* add a WithAlignedOperatorNew class with overloaded operator new
* make Matrix (and Quaternion, Transform, Hyperplane, etc.) use it
  if needed such that "*(new Vector4) = xpr" does not failed anymore.
* Please: make sure your classes having fixed size Eigen's vector
  or matrice attributes inherit WithAlignedOperatorNew
* add a ei_new_allocator STL memory allocator to use with STL containers.
  This allocator really calls operator new on your types (unlike GCC's
  new_allocator). Example:
  std::vector<Vector4f> data(10);
  will segfault if the vectorization is enabled, instead use:
  std::vector<Vector4f,ei_new_allocator<Vector4f> > data(10);
NOTE: you only have to worry if you deal with fixed-size matrix types
with "sizeof(matrix_type)%16==0"...
 2008-09-03 00:32:56 +00:00
Gael Guennebaud
d8df318d77 resurrected sparse triangular solver 2008-09-02 19:55:26 +00:00
Daniel Gomez Ferro
8fb1678f0f Extended sparse unit-test: nested blocks and InnerIterators. 
Block specialization for sparse matrices.
InnerIterators for Blocks and fixes in CoreIterators.
 2008-09-02 15:28:49 +00:00
Benoit Jacob
46fe7a3d9e if EIGEN_NICE_RANDOM is defined, the random functions will return numbers with 
few bits left of the comma and for floating-point types will never return zero.
This replaces the custom functions in test/main.h, so one does not anymore need
to think about that when writing tests.
 2008-09-01 17:31:21 +00:00
Gael Guennebaud
49ff9b204c remove the conceptualy broken "NoShear" transformation traits, 
and rename NonAfine => Projective, GenericAffine => Affine, NoScaling => Isometry
 2008-09-01 17:14:34 +00:00
Gael Guennebaud
6825c8dd6b QTransform conversion and doc 2008-09-01 06:33:19 +00:00
Gael Guennebaud
994629721a update of the geometry tutorial 2008-08-31 17:30:09 +00:00
Benoit Jacob
d74916e4fe same thing with EIGEN_BINARY_DIR. Now the doc generation works from kdesupport. 2008-08-31 15:20:25 +00:00
Benoit Jacob
c931867909 also use EIGEN_SOURCE_DIR here. according to grep this was the last place to 
change.
 2008-08-31 15:12:55 +00:00
Benoit Jacob
ff60c9ccb1 fix cmakelists: wrong assumption on CMAKE_SOURCE_DIR. One can now use 
EIGEN_SOURCE_DIR for that use, guaranteed to point to eigen2/ directory.
 2008-08-31 15:08:41 +00:00
Gael Guennebaud
7e8aa63bb7 * Add Hyperplane::transform(Matrix/Transform) 
* Fix compilations with gcc 3.4, ICC and doxygen
* Fix krazy directives (hopefully)
 2008-08-31 13:32:29 +00:00
Benoit Jacob
5c34d8e20a The discussed changes to Hyperplane, the ParametrizedLine class, and the 
API update in Regression...
 2008-08-31 04:25:30 +00:00
Gael Guennebaud
5c8c09e021 add uniform scale/prescale functions in Tranform 2008-08-30 23:10:46 +00:00
Gael Guennebaud
9c450a52a2 Split Rotation.h to Rotation2D.h and RotationBase.h, 
and more code factorization based on RotationBase.
Added notes about the main aim of the Translation and Scaling classes.
 2008-08-30 21:36:04 +00:00