This has a measurable impact on interpolation performance.

Also remove an accidentally named enum with an anonymous enum.

Change-Id: Ied6a4b2b06bb27a7f004bd0e01353742e1f84034

Change-Id: I2116645938c4552ed495e371bfdbcaf62a443461

This prevents any conflict with other libraries that use a similar syntax.

Change-Id: I7d67b283fb33ef677cc54a00c6ab66b82575422c

Change-Id: I1b2063505dc2296c141989c93a939175d5dba7e1

The key change is that there is a new layer of abstract,
a Array object that the interpolator depends on.

The Array provides a one dimension or two dimensional
array like interface independent of the underlying representation
of the data.

Also included here is support for vector valued functions.

Change-Id: Ica68f03778cf0d84192db00cd55653f8b4124d51

Change-Id: Ib468fbe7e0e8220870ddf9968ac59295c21f1e43

Make the definition of CERES_NO_THREADS conditional on the presence
of the CERES_HAVE_PTHREADS define.

This allows the user to enable threading in ceres using a combination
of CERES_EXTRA_DEFINES and linker flags which they need to do in
their app.

Change-Id: I43b99fc829001166e2f6dfb0a770768e61470591

Delete code needed by old versions of the NDK. We do not build
with these versions of the NDK and do not use STLPort anymore.

Change-Id: I61092db0aa3980cfae6ff57f3f318482027e627f

Change-Id: Ied811fc16f0c1c553e37af6d3111de71baea8462

Change-Id: I351bef3bf7969a60d8d715731a9eafab5d612a81

Due to floating point and conditioning issues, a system
matrix which is guaranteed to be PSD in exact arithmetic
can appear indefinite to the ConjugateGradientsSolver.

Previously, x'Ax <= 0, the solver returned with numerical
failure. Which the trust region solver will treat as a failed
solve.

But, more general truncated Newton when they encounter indefiniteness
use the step computed till that point instead of declaring failure.

This changes does this and adds a bit more logging.

Change-Id: I0e0cc56ef7d856f1c54ac6d638327b8353039f70

The example code for DynamicNumericDiffCostFunction and
DynamicAutoDiffCostFunction in the documentation was
allocating the cost function objects on the stack rather
than the heap.

Thanks to Rodney Hoskinson for reporting this.

Change-Id: I217aee02d1e2c1e9c25b8197451e9f9e0482915d

Thanks to Pablo Speciale for reporting this.

Change-Id: Icd526856f91dba98f7abf86b098b210a89556445

Change-Id: I1b6afb1a8509b3b20d3f28887c88bf15d33dbcf7

Example code demonstrates how a sampled function can be
minimized. Also, in the process uncovered some deficiencies
in the CubicInterpolator and BicubicInterpolator interfaces and
fixed them.

Change-Id: I18c8f670fbee076bf1e94d1f45c7477fd71640e8

This bi-cubic interpolation implementation is based
on the cubic convolution algorithm of keys, which allows
us to implement a bi-cubic spline like interpolation scheme
using five one dimensional cubic spline operations.

Change-Id: I116aa8036191c3e654af788323fc8298ae8252a6

Add a cubic interpolator based on the Catmull-Rom spline,
with support for automatic differentiation.

Change-Id: I02ae4c4ea37805ff1f717b05ea805989b474bd59

Change-Id: Ica8bf2b28bcbf6cde338f9ca3c64cd8a7d968a4c

Change-Id: Ia824f305b638c1263752efe35690fc0e5db9f75a

The previous commit broke levenberg_marquardt_strategy_test due
a change in the logging string being used.

Change-Id: I6ea69c0bba195c3e7d457d509b9a6605458d69b4

Change-Id: Idc7dce702e99637f47d7585399ef8da38f0b8111

When a user requests an operation on a parameter block which has
not been added to the problem, we now display a more helpful
error message with more context.

Change-Id: Ia7e54815111eb6375b31ed0d1cddca5917138ae1

- Results of find_program() are by default visible in the CMake GUI
  (cache), but the user has no reason to care in general about the
  location of the Homebrew executable detected.
- Note it is still available in the GUI, but only via toggling to the
  advanced display.

Change-Id: Ifb0e54c00d350cbfb3b2717d889570cab61cce54

- Reported by stonier@yujinrobot.com as Issue 153:
  https://code.google.com/p/ceres-solver/issues/detail?id=153

Change-Id: I3f0e67291adf129a6e7857ccc5f4e7e355feceb8

- As part of adding support for detection of non-standard Homebrew
  install on OSX, an Eigen specific search directory was added to the
  search path in the main CMakeLists.  This commit moves that search
  into FindEigen.cmake.

Change-Id: Ia6142211961a0d1fdddeea77b83438e4ef94434f

- Call through to Homebrew on OSX to determine it's install root
  in case it is not /usr/local and add the result to the CMake
  prefix path that is searched for all find_path/library calls.
- This should allow Ceres to compile even when Homebrew is installed
  in a non-standard location.

Change-Id: I230a5e12aef54617567bdfd20c4fd45c5a04a8bf

Thanks to Philipp Bender for reporting this.

Change-Id: I1f2947d378e0e98f6d225126a686d52738df3df0

Change-Id: Ida89b67c66b3bc7683d95e63646dfb2f9679d1b1

Change-Id: I7376f5e7eace22ec1fc05a61eaa858594f08682d

For historical reasons we had a "using namespace std;" in port.h. This
is generally a bad idea. So removing it and along the way doing a bunch
of cpplint cleanup.

Change-Id: Ia125601a55ae62695e247fb0250df4c6f86c46c6

- Also fix a typo in pointer to EIGENSPARSE documentation.

Change-Id: I1448fcf3680a65362c6f9b2d8a5ab0259da92364

- Previously we had no defined default value for
  sparse_linear_algebra_library_type in Solver::Options if Ceres
  was compiled with no sparse library available.  Thus in that case,
  the default value (dependent upon the compiler) would indicate that
  one was available.
- Now we have an explicit option that means no sparse library is
  available, which is now the default value in Solver::Options in this
  case.
- Add a warning in CMake when the user disables all sparse libraries.
- Fix typos in trust_region_preprocessor_test:
  (SUITE/CX)_SPARSE -> (SUITE/CX)SPARSE that induced failures when
  no sparse libraries were available.

Change-Id: I869c399a12d42bfc44220cbb25ce6d6dd80236bd

Thanks to Vasily Vylkov for suggesting the change.

Change-Id: I8e15f5ffdba2da5f55234d65ba4b9b0dadfb6085

This code never got expanded into a full preconditioner. No point
keeping dead code around.

Change-Id: I45badcd9e5f7eb39e8d288a96c65a02f325d76bd

Thanks to Markus Moll for maintaining the port and pointing me to
it.

Change-Id: Ia28fcbfb4946409de9e6b85d1dc332a25555195b

Update version history.

Change-Id: I1b73749ba10679396369e2af0a37699181b125fb

Change-Id: Iec2c6b5b0a2aa2e5e3b76200c5ac91000e41f267

Change-Id: If7bfaef9dea604b78290ab739e21ae2ec6195ed6

Change-Id: Ic55b8e48110bc651ae942d34fe5402a6e0422fe3

Update the version history.

Change-Id: I5de006c7c75b26d8c421bf1eeb525964121d2029