GitLab

 + Changing the scons scripts for the nonlinear fitters to
use library_available instead of checkPKG.
 + Updating the library_available function to avoid checking the lib +
header when the pkg-config provides a configuration.
 + Adding the #external/build/lib/pkgconfig directory to the list of
directory in the PKG_CONFIG_PATH variable.

[Warning]
Only tested on OSX. Need to be checked with the CI platform.

before the obtain call.

Adding two aliases to the scons command: 'python' and 'tests'
Need to test those scripts on GNU/Linux and Windows. Validated on OSX.

This streamlines information and warning messages with the rest of
SCons, and allows '-Q' to be honored for the former.

Fixes a regression introduced in commit fff676d4.

Outputting timing to load data as well
Saving mse and rmse weighted by cosine factors in the output file as well

Bug fix on the cosine(theta_view)*cosine(theta_light) metric

Added a try/catch block to catch exception when data could not be loaded

Moved the creation and opening of the output file to avoid creating a file that could be empty if no data are loaded

also added a friend function to output the different parameters of the SGD function (this is only meant to help debugging)

added an implementation of the method load() meaning that now SGD can be loaded from file

Corrected a wrong comment

Checking the output of the method load() from the BRDF or function to return the appropriate value if the function was not correctly loaded

Added code to output the different metrics to a file, which filename is specified by --output option on the command line

pkg-config system.